Air conditioning Installation
Looking for professional, reliable air conditioning installation in London? At Arcas Air Conditioning, we deliver high-quality AC solutions for homes and businesses across the capital. Whether you’re upgrading an old system or installing air con for the first time, we ensure fast, efficient, and affordable results — tailored to your space and your needs.
We install systems from top brands like Daikin, Mitsubishi Electric, Samsung, Fujitsu, Panasonic, and Toshiba — with all work carried out by qualified, F-Gas certified engineers.

Installation Types
Arcas Air Conditioning provides fully tailored installation services for both residential and commercial properties across London. Whether you’re cooling a single bedroom, a loft conversion, a garden room, or an entire office floor, our in‑house engineers design every system around your space, usage patterns, and long‑term energy‑efficiency goals. Every installation is planned with precision, delivered cleanly, and built to perform reliably for years.
Residential Installations
We install quiet, efficient systems for bedrooms, living rooms, lofts, home offices, garden rooms, and whole‑home cooling setups. Our engineers assess heat load, room layout, insulation levels, and outdoor unit placement to ensure the perfect balance of comfort and performance. Whether you want discreet wall‑mounted units or a fully concealed ducted system, we design installations that blend seamlessly into your home.

Commercial Installations
For businesses, we deliver engineered climate‑control solutions for offices, restaurants, retail units, gyms, salons, medical rooms, and multi‑floor commercial buildings. Our commercial installations prioritise reliability, airflow consistency, zoning control, and low running costs. We work around your operating hours to minimise disruption and ensure your staff and customers enjoy a stable, comfortable environment all year round.

Tpyical AC Systems We Install
Split System
Split systems are the most popular choice for single‑room cooling and heating, offering quiet operation, low running costs and fast installation. Ideal for bedrooms, living rooms, home offices, treatment rooms, small offices and retail spaces, they deliver powerful climate control with minimal disruption and excellent energy efficiency.

Multi-Split System
Multi‑split systems allow you to cool and heat several rooms using one outdoor unit, making them ideal for homes, apartments, salons, clinics, and small commercial spaces with limited exterior wall space. Each indoor unit can be controlled independently, giving you personalised comfort in every room while keeping installation tidy and energy‑efficient. Perfect for properties where flexibility, zoning, and quiet performance are essential.

Ceiling Systems

Ceiling Cassette
Ceiling cassette systems deliver powerful, evenly distributed airflow through a discreet 4‑way outlet, making them perfect for shops, offices, salons, cafés and commercial spaces. Installed flush within a suspended ceiling, they provide high‑performance cooling and heating without taking up wall space, offering quiet operation, excellent coverage and a premium, modern finish.

Suspended Cassette
Suspended cassette systems are designed for commercial environments with high ceilings, limited ceiling voids, or open‑plan layouts where traditional ceiling cassettes cannot be installed. These units deliver powerful airflow, wide coverage and excellent cooling performance, making them ideal for warehouses, workshops, gyms, retail units and large commercial spaces. Their robust design ensures reliable operation even in demanding conditions, while maintaining efficient, evenly distributed climate control.
Why Choose us for Installation?
When installing or replacing an air conditioning system, the quality of the workmanship matters just as much as the quality of the equipment. At Arcas Air Conditioning, we combine 15+ years of hands‑on experience, advanced engineering standards, and a customer‑first approach to deliver installations that perform flawlessly for years.
Every project is handled by our in‑house, F‑Gas certified engineers, ensuring your system is installed safely, efficiently, and in full compliance with UK regulations. From the first survey to the final handover, we focus on delivering clean, precise work with minimal disruption to your home or business.
What Sets us Apart?
Free on‑site survey & expert system design We assess heat load, room layout, insulation, and usage patterns to recommend the perfect system for your space.
Transparent pricing — no hidden costs Every quote is fixed, clear, and fully itemised so you know exactly what you’re paying for.
Fast turnarounds with minimal disruption Our engineers work efficiently and respectfully, keeping your property clean and completing most installations in a single day.
F‑Gas certified engineers All installations are carried out by qualified professionals who meet the highest UK safety and compliance standards.
Friendly, London‑based service We’re a local team serving homes and businesses across London — no subcontractors, no call centres.
Full system warranty and aftercare support We install trusted brands and provide ongoing servicing, maintenance, and support to keep your system performing at its best.

Our Tested Process
1. Contact Us
Call our engineers directly to book a surveyor arrival window or request emergency assistance.
2. Free Survey
We map your indoor structural properties and formulate a detailed, upfront layout quote.
3. Installation
Tidy, F-Gas certified calibration. Every single joint is triple-verified before power-up.
4. Absolute Control
Enjoy modern micro-climate adjustment features, supported by our continuous guarantee.
Where We Install
Our rapid‑response engineering teams travel fully equipped to deliver seamless air conditioning installation, component repairs, and scheduled servicing across all London boroughs. Whether you’re based in a residential flat, a terraced home, a commercial unit, or a multi‑floor office building, we provide fast, reliable coverage wherever you are.
We regularly serve customers in Bexley, Greenwich, Bromley, Lewisham, Southwark, Lambeth, Wandsworth, Westminster, Camden, Islington, Kensington & Chelsea, Hammersmith & Fulham, Tower Hamlets, Hackney, Newham, Redbridge, and Dartford. If you’re unsure whether your property is within our service radius, our engineers can confirm availability instantly.

Price Guidance
For single‑room air conditioning installation, our price list starting from £2,400. Perfect for bedrooms, home offices, or small living spaces — with transparent costs and expert fitting included.
What's Included for Each:
- Supply of Indoor and Outdoor Units
- Professional Installation
- Standard installation materials
- System testing and commissioning
- Installation warranty
Looking for commercial, whole‑house, or multi‑room installations? Or need air conditioning repair and maintenance?
Contact us today or book a free site survey for tailored pricing and service options.
Brands We Install
We install and commission air conditioning systems from the world’s leading manufacturers, ensuring long‑lasting performance, energy efficiency and quiet operation. Our engineers work with trusted brands known for reliability, advanced technology and excellent warranty support — giving you complete confidence in your installation.
Daikin
Industry‑leading efficiency, whisper‑quiet operation and exceptional build quality. Daikin systems are ideal for both residential and commercial environments where performance and longevity matter.
Mitsubishi Electric
Reliable, energy‑efficient and ultra‑quiet, Mitsubishi Electric systems are ideal for homes, offices and commercial spaces needing powerful year‑round climate control. Their advanced inverter technology delivers stable performance, low running costs and long‑lasting durability.
Samsung
Modern, stylish units with advanced airflow technology and Wi‑Fi control. Samsung systems offer excellent comfort and sleek aesthetics for contemporary spaces.
Fujitsu
Known for durability and stable performance, Fujitsu systems deliver consistent climate control with low running costs — ideal for bedrooms, offices and treatment rooms.
Panasonic
High‑efficiency systems with advanced filtration and quiet operation. Panasonic units are a great choice for allergy‑sensitive environments and energy‑conscious properties.
Toshiba
Reliable, compact and efficient, Toshiba systems are perfect for smaller rooms, retail units and commercial spaces requiring dependable performance.
F-Gas Certified Engineers
Licensed HVAC Professionals
15+ Years Experience
Local Industry Expertise
Fully Insured
Comprehensive Property Protection

Posted on Google Angi SilverstonTrustindex verifies that the original source of the review is Google. Based on local recommendations Allan and his wonderful team provided 4 x aircon units into our residential property absolutely perfectly. Not only are they incredibly professional but they are so friendly (the reviews on their customer service are 100% accurate), leave the house spotless everyday and are exceptionally quick! Our aircon was installed within 4 days and just in time for this heatwave. The units are sleek and quiet & our fears about. Huge external unit have been put to rest as they are boxed in and when all units are running it is also very quiet. We have already recommended Arcas to others.Posted on Google James WTrustindex verifies that the original source of the review is Google. I spoke to various air conditioning installers as this was an important job, a significant expense and I wanted to feel I’d get the best service, fair pricing and great quality in the installation. Allan was very straightforward in his approach from the outset and I felt comfortable to proceed. Some quotes from other businesses were cheaper, others more expensive but a consistent issue was lack of transparency-possible additional costs for extra piping, or unexpected electrical work, or insisting the condensers were placed in areas I wasn’t comfortable with, amongst other issues. It was quite frustrating and I found Allan refreshing so it was an easy decision to choose his company. The job has just been completed and to a very high standard. Everything exactly as planned and discussed, all pipe work and trunking very neat and respecting my property. His team were exceptionally careful throughout to protect each room from dust and dirt and everything was back in place to the point that you wouldn’t have known workers had been there. The work was done efficiently, installing a roof mounted condenser and 3 indoor units in 2 x half days. Whenever I had questions leading up the work Allan was always responsive and helpful. And he found a way to work to a specific budget for some excellent units. I look forward to using them this summer (and winter for heating) and have confidence that if anything crops up Allan will help. Highly recommended, very trustworthy and professional, thank you. I hope the business continues to grow as there aren’t that many trustworthy contractors out there who also treat your home and the finish with such high regard.Posted on Google Sean ZimdahlTrustindex verifies that the original source of the review is Google. Allan and his team were fantastic. They worked quickly and diligently, leaving with everything as it was but with some excellent aircon units on the wall. I can't recommend them highly enough.Posted on Google Richard GivenTrustindex verifies that the original source of the review is Google. Arcas were great in terms of the initial consultation, advice and we got the installation carried out really quickly. A really tidy job, and cleaned up properly which isn't always the case!Posted on Google Chris RichardsTrustindex verifies that the original source of the review is Google. Allan and his team recently installed a condenser unit on an outside wall in our alley to power an indoor unit in our large open plan kitchen/diner that gets very hot as it gets the sun all day and has velux windows and full length patio doors and a condenser unit on the roof of our converted loft which like most lofts gets unbearably hot and also cold in winter as the radiators are not great there, to power an indoor unit for that room. I can't comment too much on the units as we've only used them briefly to test however they seem to both heat and cool very effectively. What I can definitely comment on however is the quality of the work, the loft unit has no wires on show as they ran them down the inside of the wall to the plug socket, just 1 hole, filled and ready to paint. The kitchen unit is connected directly to our switch board under the stairs, again, no wires on show and cleverly placed trunking so you only see the first 20cm coming from the unit. The team were incredibly clean, you wouldn't know workers had been in, sheets laid everywhere to catch any dust and on the floors everywhere they needed to walk. Allan himself was incredibly helpful. After visiting to quote, I'm sure he was fed up with the volume of questions I asked between then and the job, but he answered everything clearly and quickly each time. We had 4 quotes, 1 well out of our price range, but the other 3 were same ballpark except Allan's included 2 condensers instead of 1, plus we always like to support smaller, family run businesses where we can and we actually ended up spending more than he quoted as we decided to upgrade the indoor units. 2 condensers and 2 units all installed under 5 hours! I would 100% recommend Allan and his team if you're thinking of having A/C installed.Posted on Google Ben EllisTrustindex verifies that the original source of the review is Google. Allan and the team were brilliant - they responded and quoted quickly, were very organised and efficient, did a great job installing the A/C, and left the house looking clean and tidy afterwards.Posted on Google G CTrustindex verifies that the original source of the review is Google. Big thanks to Allan and team for installing our 2 Daikin AC units and 1 condenser. Allan has been very good to communicate with from initial contact through to installation, and has been swift with quotes and replies to questions. Allan and his team were very courteous, professional and hard working. I was grateful they protected carpet and furniture, as the loft which they needed to access is dusty. They cleared everything at the end of the day and left the house clean and tidy. We’re pleased with the neat installation of the units, and liked the way Allan checked with all decisions along the way, concerning trunking, cable and condenser positions so that everything looked as discreet as possible for our little terrace house, garden and neighbours, as we all live very close to each other. We’re looking forward to enjoying summer at home a lot more! We got in touch with Allan due to the good reviews, glad we did when we did as we discovered how busy he can be. We highly recommend Arcas Air Conditioning!Posted on Google Harris MacLeodTrustindex verifies that the original source of the review is Google. The guys from Arcas were fantastic! They helped us identify the right number of AC units required, their capacity, and specific location of the indoor fans and outdoor condenser units, first through extensive exchange over text, sharing pictures, and confirming the recommendations through a site visit. I shopped around and their pricing is competitive. They were able to complete the job in just one day, even though it involved drilling through brickwork, routing pipes through two levels and making the external pipework virtually invisible, and left the flat very clean. Excellent service, great result, I highly recommend.Posted on Google HarpreetTrustindex verifies that the original source of the review is Google. Big thanks for to Arcas! Allan was brilliant from beginning (quote, discussing options etc) through to installation and after care. We got great advice on which units to install, the models, and also how this would work for us. Installation was a breeze! The whole team is friendly, polite, and super tidy. Nothing was too much trouble, especially when it came to deciding which walls to install the units on. It isn’t often that I leave reviews - Allan and team were 10/10 … HIGHLY RECOMMENDED!!Posted on Google PLoTrustindex verifies that the original source of the review is Google. These guys did an amazing job with our Air Con - absolutely spotless installation. They left the rooms neater than when our cleaner has been. Now we have lovely cosy heat pumps and refreshing cool air as needed. 5 rooms installed in 3 days. They grafted 9-4 each day - I had to encourage them to eat and drink because I was worried they were working too hard! They also chased into the wall, plastered and painted, and it looks as good as new.
FAQs for Air Conditioning Installations
How long does an air conditioning installation take?
Most standard wall‑mounted AC installations take 3–6 hours. Larger systems, multi‑room setups, or commercial installations may take a full day. We always confirm the exact timeframe during your free site survey
Do I need planning permission for Air Conditioning Installation in my property?
The vast majority of residential split configurations operate within regular Permitted Development structures. However, spaces situated within historical conservation zones, listed locations, or specific leasehold terms require customized authorizations. Our surveyors assist in analyzing structural guidelines cleanly.
What type of AC system is best for my home or business?
For most properties, a wall‑mounted split system is the best balance of cost, efficiency, and performance. Offices and commercial spaces often benefit from cassette or ducted systems. We recommend the ideal system based on room size, layout, and budget.
How much does air conditioning installation cost?
Prices vary depending on the system type, room size, and installation complexity. Most single‑room installations start from £2,400 including supply and installation. We provide fixed, upfront quotes with no hidden fees.
Do you offer a warranty on installations?
Yes — all installations come with a manufacturer warranty (usually 3–5 years) and our own installation workmanship guarantee. We only install trusted brands like Daikin, Mitsubishi, and LG.
Do you remove old or existing AC units?
Yes — we can safely remove and dispose of old AC systems, including refrigerant handling, in line with F‑Gas regulations.
CONTACT ARCAS
Ready to cool your home? Book your free home survey today.
F-Gas Registration No: REF1021449•ARCAS & AIRCONDITION UK LIMITED
Connect directly with our local F-Gas certified engineers to schedule an estimate or emergency fault assessment.
