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Three Reasons for Air Conditioning at Work

Three Reasons for Air Conditioning at Work

Often in business investment is needed on those things that do not generate profit. Office environment is one of these intangible items that have major impact on your bottom line.  Air conditioning and comfort cooling for your staff is essential to maintain an atmosphere that is conducive to productivity. Here are our three main reasons why comfort cooling and air conditioning lead to a more profitable operation after the initial investment.

Improved Productivity

Overheated workplaces can affect productivity. Studies have shown that when an employee is uncomfortable in the workplace, they spend about an hour each day trying to relieve themselves of discomfort by visiting the restroom, leaving the building to buy cold drinks, finding cooler parts of the building to revive themselves, not to mention being distracted by discomfort when at their desks or work stations. The same applies in a cold or damp workplace.  This impact on productivity can be easily resolved by comfort cooling and an air conditioning system that maintains air quality.

Employee Health

Employee wellbeing is key for any business owner. Healthy, happy employees do not take sick days and will be more productive daily. Air conditioning allows filtered air to circulate that is refreshed and the use of filtration removes airborne pollutants, particles and viruses from the environment thus maintaining a healthier environment for work. Comfort cooling also helps in keeping employees alert and focussed.

Money Savings

It is often a false economy to avoid installing air conditioning as the initial investment can seem large. Compared to non-air-conditioned offices, the workplace efficiency is far greater in air-conditioned environments meaning more work is done which ultimately will make for an efficient well-run business with clear improvements to the bottom line. Most air conditioning systems these days are built with economy in mind and energy savings can be made by judicious use of timers, thermostats, and the type of efficiency rating of the comfort cooling units.

Simply Air Conditioning London offer a 24 Hour Call Out. Call at any hour on 020 7870 2333. Or get in touch using the contact form!

Commercial Air Conditioning Installation London

We design and install commercial air conditioning systems for offices, business parks, shops, and public spaces across London. All engineers are F-Gas certified.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

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Maintenance help for AC in the new normality

Maintenance help for AC in the new normality

During these uncertain and unprecedented times, we are all addressing the “new normality” which reaches far and wide across daily life, industry. work life and leisure. Many of our clients are wondering what they should be doing in relation to their air conditioning maintenance now we are living with COVID 19.

Our priority as engineers is to ensure clean air is always available to susceptible occupants of buildings private or public from the air conditioning system. To do this we work to contain any contaminated/used air or to disperse it to the exterior of a building. We also dilute the available air with clean, filtered air from outdoors which is combined with cleaning the air within a room or space. 

As the virus is so new, there are no filters yet that are proven to remove the virus. However, by using outdoor air we can negate this until the technology comes on stream. 

We would recommend that the maintenance of air conditioning in highly controlled environments such as gyms where less air flow is supplied when less people are there are adjusted to allow full air flow at all times even though this will use more energy. Another option when the building is empty is to purge the air in the space, but this will require professional advice. 

Any air handling units that have ultraviolet need to be on and fully operational. If you do not have UV, talk to our engineers as outside of pandemic times, they help destroy pollutants and viruses. 

Dirty and inefficient filters can make occupants more susceptible to respiratory infections and thus more vulnerable to COVID 19. Priority must be given to maintaining regular filter changes and general maintenance of the air conditioning systems.

Finally, we recommend focussing on these key areas:

  • Replace filters regularly. 
  • Research increasing the minimum Efficiency Rating Value (MERV) rating of your filters. The better the rating, the more airborne particles are captured. 
  • Clean the inside of the air handling units using the recommended products your engineers or unit manufacturers. 

Simply Air Conditioning London offer a 24 Hour Call Out. Call at any hour on 020 7870 2333. Or get in touch using the contact form!

Air Conditioning Maintenance and Servicing London

Regular maintenance keeps your system running efficiently, extends its lifespan, and ensures F-Gas compliance. We offer annual service plans across London.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Commercial Air Conditioning London — Office and Business AC Installation

Commercial air conditioning in London covers everything from a single-room office needing one unit to a multi-floor building requiring a full VRV system. See our main commercial AC installation page, or jump to specific environments: offices, shop and retail, server rooms.

Commercial AC Systems for London Offices

System Best for Capacity range
Wall-mounted split Small offices, meeting rooms, server rooms 2.5kW-7kW
Ceiling cassette Open-plan offices, retail, restaurants 2.5kW-14kW
Ducted split Boardrooms, high-spec offices 5kW-15kW
VRV / VRF system Multi-floor offices, large commercial buildings 8kW-100kW+

We use Daikin, Mitsubishi Electric, and Fujitsu commercial ranges as standard. All installations comply with F-Gas regulations.

Specialist Commercial Environments

We have experience in shop and retail, server and IT rooms, professional offices, and general commercial premises across London.

Maintenance Contracts for London Businesses

Commercial AC systems require at least biannual servicing. Service contracts include scheduled maintenance, priority breakdown response, and preferential repair rates.

Frequently Asked Questions

How much does commercial AC cost in London?
A small office with two to three ceiling cassettes typically costs £4,000-£8,000 installed. See our cost guide.

Do you install in occupied office buildings?
Yes. We work across Central, North, West, and South West London, phasing work and using out-of-hours installation where required.

Can you service a commercial system you did not install?
Yes. See our servicing page.

Get a Commercial AC Quote

Free survey and design for commercial AC in London: 020 7870 2333. Or visit our installation page.

Simply Air Conditioning London — F-Gas certified commercial installation and servicing since 2009.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Air Conditioning Central London — Installation Across All Zones

We install and service air conditioning across all of London — including Central London, where conservation areas, period buildings, and dense urban settings demand an experienced installer. Our main air conditioning installation page covers the full range of residential and commercial services.

Areas We Cover in Central London

Area Common property types Common AC requirement
Kensington and Chelsea Stucco terraces, listed townhouses, mansion flats Concealed ducted, conservation-compliant installs
Westminster Period conversions, offices Wall-mounted splits, commercial systems
Islington Victorian terraces, converted warehouses Multi-splits, single units
Southwark and Bermondsey New-builds, warehouse conversions, offices Ceiling cassettes, commercial VRV
Canary Wharf High-rise residential, offices Commercial systems, high-rise installs
Hackney and Shoreditch Victorian terraces, studios Residential splits, small commercial
Camden Period houses, flat conversions, retail Residential and light commercial

We also cover North London, West London, and South West London.

Central London Considerations

A large proportion of Central London falls within conservation areas. We assess planning status at survey stage and design accordingly — we have never had an installation refused on planning grounds. For period properties, see our guide to AC in Victorian properties. For flats and mansion blocks, see our London flats AC guide. All engineers carry F-Gas certification.

Frequently Asked Questions

Do you cover all Central London postcodes?
Yes — W1, WC1, WC2, EC1-EC4, SW1, SW3, SW7, SE1, N1, NW1, E1 and all surrounding postcodes.

What does a Central London installation cost?
Costs are the same as elsewhere in London. See our full cost guide.

Book a Survey in Central London

Call 020 7870 2333 for a free survey. Or visit our installation page.

Simply Air Conditioning London — F-Gas certified installation across all London zones since 2009.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Daikin Air Conditioning London — Authorised Installer and Service

Daikin is the world’s largest air conditioning manufacturer and, in our experience, produces the most reliable and efficient systems available in the UK market. We install, service, and repair Daikin systems across London as an authorised installer. For full installation services, visit our AC installation page.

Daikin Systems We Install in London

Range Best for Key feature
Daikin Perfera Bedrooms, quiet environments 19dB(A) minimum noise
Daikin Emura Living spaces, design-conscious interiors Award-winning aesthetics
Daikin Stylish Modern homes, compact rooms Sleek flat-front design
Daikin Comfora Residential, value-focused Reliable, efficient
Daikin VRV Commercial, multi-zone offices Large-scale systems
Daikin Altherma Heat pump heating Air-to-water, replaces boiler

For residential installations, see our domestic installation page. For offices and commercial premises, see commercial installation or office AC installation.

Daikin Warranty and Servicing

When installed by an authorised installer and serviced annually, the Daikin warranty extends to five years on parts and compressor. All engineers are F-Gas certified. Annual servicing is required to maintain the extended warranty. We cover Central, North, West, and South West London.

Frequently Asked Questions

Is Daikin worth the extra cost over budget brands?
Yes — total cost over 10 years usually favours Daikin. See our cost guide.

Do you install Daikin VRV commercial systems?
Yes. We install and service Daikin VRV for offices, retail, and commercial properties across London.

Get a Daikin Quote

Free survey and quote for Daikin installation: 020 7870 2333. Or visit our AC installation page.

Simply Air Conditioning London — Daikin authorised installer. F-Gas certified since 2009.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Bedroom Air Conditioning London — Home and Residential AC Installation

Bedroom air conditioning is the fastest-growing segment of residential AC in London. A correctly installed system makes sleeping through a London summer straightforward — without the noise or inefficiency of a portable unit. For the full range of domestic installation options, or to understand costs, see our AC cost guide.

What to Look for in a Bedroom AC Unit

Noise Level

Look for units rated below 22dB(A) in sleep mode. Daikin Perfera and Mitsubishi Electric MSZ-LN both operate at around 19-21dB(A) at minimum speed — genuinely quiet in a sleeping room.

Correct Sizing

A typical London bedroom of 15-20m² needs a 2.5kW system. Correct sizing at survey stage is critical — an undersized unit runs continuously and never achieves the set temperature.

Whole-House Residential Installations

For whole-house cooling, a multi-split system serves multiple rooms from one outdoor unit. See our domestic installation page. For flats, see our London flats AC guide. For period properties, see our Victorian properties guide.

Rooms to cool System Approx. installed cost
1 room Single wall-mounted split £1,200-£2,200
2 rooms Multi-split £2,800-£4,500
3-4 rooms Multi-split £4,500-£7,500

Frequently Asked Questions

What brands do you recommend for bedrooms?
Daikin Perfera and Emura for quiet operation. Mitsubishi Electric MSZ-LN for ultra-low noise. Both carry strong warranties when installed by an F-Gas certified engineer.

Can I install AC in a rented home?
Only with landlord consent. For tenants, see our London flats guide.

Book a Survey

Free surveys for bedroom and whole-house residential installations: 020 7870 2333. We cover Central, North, West, and South West London.

Simply Air Conditioning London — F-Gas certified residential installation since 2009.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Portable Air Conditioner London — Hire, Buy, and Install

Portable air conditioners are widely sold in London every summer — easy to set up, no installation needed. But for most homeowners, a fixed wall-mounted split installation delivers better cooling, lower running costs, and less noise. This guide helps you decide which is right for you.

Portable vs Fixed Split: A Comparison

Factor Portable unit Fixed split system
Installation None required Half-day professional installation
Cost £300-£800 to buy £1,200-£2,200 installed — see cost guide
Cooling efficiency Lower — loses cold air around exhaust hose Higher — sealed refrigerant loop
Noise Higher — compressor inside the room Lower — compressor outdoors
Best for Temporary use, rented flats Permanent cooling, owned property

For London flats specifically, see our complete guide to AC in London flats. For period properties, our Victorian properties guide covers installation constraints.

When a Fixed Installation Is the Better Choice

If you own your property and plan to stay more than one summer, a fixed domestic installation recovers its cost within two to three years. We cover all London zones — Central, North, West, and South West London.

Frequently Asked Questions

Can a portable AC cool a whole flat?
Not effectively — suited to single rooms up to 25m². See our London flats AC guide for whole-flat solutions.

Are portable AC units allowed in rented flats?
Yes — no permanent installation required. For permanent cooling, freeholder consent is typically needed for a fixed system.

Ready for a Permanent Solution?

Call us for a free survey: 020 7870 2333. A wall-mounted split can typically be installed within a week. Visit our installation page for full details.

Simply Air Conditioning London — F-Gas certified installation and servicing since 2009.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Air Conditioning Regas London — Refrigerant Recharge Service

If your air conditioning is blowing warm air, running longer than normal, or icing up, low refrigerant is one of the most common causes. A regas restores the system to its designed operating pressure. If the system is beyond repair, our installation team can advise on a modern replacement.

What Is an AC Regas?

Refrigerant does not get used up in normal operation — if a system is low, it has a leak that must be found and repaired before the gas is topped up. This is a legal requirement under F-Gas regulations and the only approach that makes the repair last.

Signs Your AC Needs Regassing

  • Not cooling as well as it used to
  • Running continuously without reaching the set temperature
  • Ice forming on the indoor unit or refrigerant lines
  • Hissing or bubbling sounds near the unit

The Regas Process

We locate the leak using electronic detectors and UV dye. All engineers carry F-Gas certification. We work with all refrigerant types across Daikin, Mitsubishi Electric, Fujitsu, and all other major brands.

Refrigerant Common in Notes
R32 Systems from 2015 onwards Lower GWP, now standard in new systems
R410A Systems 2005-2020 Being phased out under F-Gas regulations
R22 Pre-2004 systems Banned for topping up — replacement required

Frequently Asked Questions

How much does an AC regas cost in London?
A regas including leak detection, repair, and top-up typically costs £200-£350. See our full cost guide for context.

Can you top up without fixing the leak?
No — illegal under F-Gas regulations and won’t last.

My AC has R22 — what are my options?
R22 cannot legally be topped up. A new installation is required. Our cost guide covers current replacement prices.

Is my system worth repairing or replacing?
Systems over 12-15 years old are often better replaced. We provide honest advice and free quotes for domestic or commercial replacement installations.

Book a Regas

Call 020 7870 2333 for same-day bookings across Central, North, West, and South West London.

Simply Air Conditioning London — F-Gas certified since 2009. 24hr emergency callout available.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Air Conditioning Maintenance London — Annual Service Plans

Air conditioning systems need regular maintenance to run efficiently, last longer, and keep manufacturer warranties valid. For London properties, an annual service is the minimum — commercial systems used year-round benefit from biannual servicing.

Maintenance is the complement to a good air conditioning installation — the two together determine the long-term value of your system.

What an Annual AC Service Includes

Check Why it matters
Filter clean Dirty filters reduce airflow, cut efficiency, and can cause icing
Evaporator and condenser coil inspection Fouled coils reduce heat exchange efficiency significantly
Refrigerant pressure check Low refrigerant indicates a leak and reduces cooling performance
Condensate drain flush Blocked drains cause water leaks inside the property
Electrical connections check Loose connections cause failures and are a fire risk
Full operational test System tested in cooling and heating modes

How Often Should AC Be Serviced?

Residential systems used seasonally: once per year, ideally in spring. Office and commercial systems in continuous use: every six months. Server rooms may require more frequent checks given the critical nature of the environment.

Maintenance and Manufacturer Warranty

Most AC manufacturers — including Daikin, Mitsubishi Electric, and Fujitsu — require evidence of annual servicing to honour warranty claims. A skipped service can void your warranty.

What If a Fault Is Found?

If our engineer identifies a fault during a service visit, they will advise on repair options and costs. For systems beyond economic repair, we provide quotes for a replacement installation.

Frequently Asked Questions

How much does an AC service cost in London?
A full annual service for a single-unit residential system costs £150–£200. See our cost guide for full pricing context.

Can I service my own AC?
Filter cleaning can be done by the owner. Gas checks and electrical work require an F-Gas certified engineer.

What happens if refrigerant is low?
Low refrigerant indicates a leak. We locate and repair the leak, then recharge the system — see our repair service for details.

Book Your Annual Service

Book a service or enquire about a maintenance contract: 020 7870 2333. We cover all London zones including Central, North, West, and South West London.

Simply Air Conditioning London — F-Gas certified installation, servicing and repair since 2009.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Air Conditioning Repair London — Same-Day Engineers, 24hr Callout

Air conditioning breakdowns rarely happen at a convenient moment. When your system stops working in a London heatwave, you need an engineer quickly. We offer same-day callout across London and a 24-hour emergency line for urgent repairs.

If a repair is not cost-effective, we can advise on a new installation — often the better investment for systems over 12–15 years old.

Common AC Faults We Fix

Fault Likely cause Fix
Not cooling (or cooling poorly) Low refrigerant, dirty filters, faulty compressor Gas top-up, service, or component replacement
Water leaking indoors Blocked condensate drain, dirty evaporator coil Drain clear, coil clean
Won’t turn on Electrical fault, tripped isolator, PCB fault Electrical diagnosis and repair
Unusual noise Fan bearing failure, loose panel, refrigerant issue Component replacement
Ice forming on unit Low refrigerant, restricted airflow Gas check, filter clean
Error codes on display Varies by code and brand Diagnostic visit, targeted repair

Our Repair Process

Diagnosis

Our engineers carry diagnostic equipment for all major brands — Daikin, Mitsubishi Electric, Fujitsu, Samsung, LG, Panasonic, and others. All our engineers are F-Gas certified.

Transparent Pricing

You receive a clear quote for the repair before any work proceeds. No surprises on the invoice.

When Replacement Makes More Sense

If a system is more than 12–15 years old and requires a major component replacement, a new domestic installation or commercial installation is often more cost-effective. We will advise honestly. See our cost guide to understand what a new installation involves.

Preventing Future Breakdowns

Most AC faults are preventable with regular annual servicing. A service catches low refrigerant, blocked drains, and dirty coils before they cause a breakdown.

Frequently Asked Questions

How much does an AC repair cost in London?
Minor repairs typically cost £80–£150. Gas recharges cost £150–£300. Major component replacements vary — we quote before proceeding.

Is it worth repairing an old AC unit?
If a system is over 12–15 years old and requires a major repair, a new installation is often the better long-term investment.

Can you repair AC in a listed building?
Yes. Repairs do not require planning permission. For installation in period properties, see our Victorian properties guide.

Book a Repair

Call 020 7870 2333 for same-day or next-day repair bookings. 24hr emergency line available.

Simply Air Conditioning London — F-Gas certified repair and installation since 2009.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Air Conditioning Cost Guide London — What You’ll Pay in 2026

Air conditioning costs in London vary significantly depending on the system type, property size, and number of rooms. This guide gives you real figures — not ranges so wide they are meaningless. For a full list of our installation services, visit our AC installation page.

Air Conditioning Installation Costs in London (2026)

System type Typical installed cost Notes
Single wall-mounted split £1,200 – £2,200 One room, one outdoor unit
Multi-split (2 rooms) £2,800 – £4,500 Two indoor units, one outdoor unit
Multi-split (3–4 rooms) £4,500 – £7,500 Full flat or small house
Ceiling cassette (office) £1,800 – £3,500 Per zone, per unit
Concealed ducted system £6,000 – £15,000+ Whole-house, high-spec

For domestic installations, wall-mounted splits are the most common and cost-effective choice. For commercial installations, ceiling cassettes and VRV systems suit larger spaces.

What Affects the Price?

System Capacity (kW)

Larger rooms need more powerful systems. Correct sizing at survey stage is the single most important factor in getting value from an air conditioning installation.

Pipework Runs

Short, clean pipework runs cost less. Period properties require more careful routing — see our guide to AC in Victorian properties for details.

Brand

We install and recommend Daikin as the default — the combination of reliability, efficiency, and warranty support is unmatched. Mitsubishi Electric and Fujitsu are strong alternatives.

Annual Running Costs

A correctly sized inverter split unit running 8 hours per day for four summer months typically costs £80–£180 per year in electricity. All our installed systems qualify for the extended manufacturer warranty when serviced annually — see our maintenance and servicing page.

Annual Service Cost

A full annual AC service costs £150–£250 depending on system size. This covers filter cleaning, refrigerant pressure check, coil inspection, and drainage test.

Frequently Asked Questions

Is air conditioning expensive to run in London?
Not with a modern inverter system. Running costs are typically £100–£200 per year for a single-room split used through summer.

Are cheaper quotes safe to accept?
Be cautious of quotes significantly below market rates. F-Gas certification is a legal requirement — unqualified installations are illegal and void insurance.

What about flats?
See our guide to AC for London flats for specific cost considerations around freeholder consent and shared buildings.

Get a Fixed-Price Quote

We provide fixed-price, all-inclusive quotations after a free site survey. Call 020 7870 2333 or book via our installation page.

Simply Air Conditioning London — F-Gas certified installation, servicing and repair since 2009.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

Main Pages

Air Conditioning Installation London — What to Expect in 2026

Air conditioning installation in London is more straightforward than most people expect. The challenge is usually not the installation itself but choosing the right system, finding a qualified installer, and understanding what the process involves.

This guide covers everything you need to know before booking — from system types and installation timelines to costs and what distinguishes a professional installation from a poor one.

Which AC System Is Right for Your London Property?

The most common system installed in London homes and offices is a wall-mounted split unit. For a full overview of system options and services, visit our air conditioning installation page. One indoor unit on the wall, one outdoor condenser — typically on a rear wall, flat roof, or side return.

System Best for Typical install time
Wall-mounted split Single rooms, bedrooms, living rooms Half day to 1 day
Multi-split Multiple rooms from one outdoor unit 1 to 2 days
Ceiling cassette Open-plan spaces, offices 1 day
Concealed ducted Whole-house, high-spec residential 2 to 4 days
Floor-standing console Rooms where wall-mounting is not possible Half day to 1 day

For homes, see our domestic air conditioning installation service. For business premises, see commercial AC installation.

The Installation Process Step by Step

Free Site Survey

Every installation starts with a free survey. We visit your property, assess room size, wall construction, ceiling height, and the most practical position for both indoor and outdoor units. Pipework routes are agreed before any work begins.

Quotation

You receive a fixed-price quotation covering all labour, materials, refrigerant, and commissioning. For a breakdown of costs, see our AC installation cost guide for London.

Installation Day

The indoor unit is wall-mounted and connected to the outdoor condenser via a refrigerant line set. Pipework is clad in external trunking or concealed internally where possible.

Commissioning

The system is pressure-tested, charged with refrigerant, and run through full operational tests. All our engineers are F-Gas certified, as required by law.

How Long Does Installation Take?

A single-room wall-mounted split takes four to six hours. Multi-room systems take one to three days. We cover all of London — including Central London, North London, West London, and South West London.

What Makes a Good Installation?

The quality of an AC installation is mostly invisible. Good pipework routing, correct sizing, secure brackets, and a properly commissioned system determine long-term reliability. After installation, annual maintenance keeps the system running at peak efficiency.

Frequently Asked Questions

Do I need planning permission to install air conditioning in London?
In most cases, no. For period properties, see our guide to AC in Victorian and period properties.

Can air conditioning be installed in a flat?
Yes — see our complete guide to AC in London flats for details on freeholder consent and condenser placement.

Does AC require annual servicing?
Yes. An annual air conditioning service keeps the system efficient and maintains the manufacturer warranty.

Can you install in winter?
Yes. Installation is possible year-round.

Book a Free Survey

The first step is a free, no-obligation site survey. Call us on 020 7870 2333 or visit our installation page to book.

Simply Air Conditioning London — F-Gas certified installation, servicing and repair since 2009. 24hr emergency callout: 020 7870 2333.

Quote from one of our happy air deflector free trial recipients:

“Our open plan office houses around 100 people. Air distribution and draft was an issue for some of them prior to fitting air deflectors. Since the fitting we’ve not had a single complaint!”

How we got here

Air conditioning is known to have been applied in Ancient Rome: aqueduct water was passed through walls of houses to cool them. In medieval Persia similar techniques involving the use of cisterns and wind towers were used in the hot season to cool buildings.

Modern air conditioning emerged after advances in 19th Century chemistry, and it was Willis Haviland Carrier who invented and first used a large-scale electrical air conditioning system in 1902.

Air Conditioner Definition

An appliance, unit, system, or machine designed to stabilise the temperature and humidity of air within an area (used for both heating as well as cooling). A refrigeration cycle is the most common method of achieving this although sometimes evaporative coolers are used for comfort cooling inside buildings and vehicles.

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