Greater London · Air conditioning installation
Air conditioning installation in Cannon Hill
One call covers air conditioning in Cannon Hill: diagnosis, fixed price, work and sign-off. An F-Gas certified company, NICEIC approved, on Checkatrade.
- A system on old refrigerant that’s due for replacement
- Bedrooms and offices that overheat in summer
- Working from home in a room that gets too warm
Air conditioning for homes and businesses in Cannon Hill
Not sure what you need, or where it would go? Just call us on 07833 053749 or fill in the contact form with pictures of the rooms and the outside of the property, and you will hear back from us the same working day about a survey or a fixed-price quote. Modern air conditioning heats as well as cools: the Energy Saving Trust notes that air-to-air heat pumps are sometimes called air conditioning, so a system bought for summer earns its keep in winter too.
In a London area like Cannon Hill, many of the homes we are asked about are flats, maisonettes and terraced houses. So the first questions are where the outdoor unit can sit, how the pipes get to it and whose permission is needed. In a flat, the lease and the freeholder usually come into it, so we write up the proposed positions for them to see.
For a fault on a system that may still be under warranty, send us the make, model and installation date. We will tell you how the manufacturer’s warranty is likely to apply before anything chargeable is done.
- Place
- Cannon Hill (SW20, SM4, KT3)
- Wider area
- Greater London
- Quotes
- Fixed, in writing
- Credentials
- F-Gas certified, NICEIC approved
- Replies
- Same working day
- Typical price
- £1,200–£2,200 + VAT for one room
- Phone
- 07833 053749
- Updated
- 30 October 2026
FAQs for Cannon Hill
Can I have air conditioning in a flat in Cannon Hill?
In many cases, yes, once the lease and the building’s rules are checked. Permitted development rules for flats are tighter than for houses, so we check the outdoor unit position and give you the details to send to the freeholder or managing agent.
Do you cover Cannon Hill for air conditioning?
Yes, Cannon Hill is within the area we cover. To start, ring us on 07833 053749 or use the quote form with a few photos.
Do you work on commercial properties?
Yes. We work for homeowners, landlords, letting and managing agents, and businesses of every size across London and the South East. Let us know who the records should go to.
Does air conditioning need its own electrical supply?
In most cases. The fuse board is checked on the survey, and any electrical work goes on the quote and we install and certify the circuit as NICEIC approved contractors.
Is the equipment covered by a warranty?
Warranty comes from the manufacturer and depends on the brand and product. For example, Daikin’s standard warranty on split air conditioning is 2 years, and we explain the terms for whichever brand you choose.
Do you offer maintenance contracts?
Yes. We offer maintenance contracts, with visits at the interval your system and the manufacturer need. Each visit is written up and F-Gas records kept where they apply.
Do I need to service the system to keep the warranty?
For some brands, yes. Send us the make and model and we will tell you what the manufacturer expects, and book the service at the interval they recommend.
Also near Cannon Hill
Also in Cannon Hill
What happens on the day
Everything the job needs comes with us, from tools and test equipment to ladders and dust sheets. You only need to give us clear access to the units, or their planned positions, and to the fuse board. The visit takes a day for most single-room installations, with multi-split, ducted and cassette systems taking longer. The more we can see beforehand, the smoother the visit to Cannon Hill will be.
- First the diagnosis: a survey of the rooms, the walls, the outside and the electrics.
- Then the prescription: the right system and size for each room, on a fixed-price quote.
- Then the work: units up, pipes and drain run, and a new circuit where necessary.
- Before it runs, the pipework is proved tight and put under vacuum.
- Finally, the clean bill of health: commissioning, the controls explained and your paperwork handed over.
How to prepare
- Tell us about access, such as roof hatches, high walls or locked plant areas
- Find the manual or the paperwork for the system, if you have it
- Give us access to the outside wall, roof or yard where the outdoor unit sits
Get a fixed-price quote
Photos are the fastest route to a quote: the room or the existing unit, the outside wall or roof where the outdoor unit sits or would go, and the label on any existing unit. Tell us the address and what you need, and many jobs can be priced from that.
Related advice
How we price air conditioning
Our prices page gives typical ranges, and your quote is built on your job. What we look at:
- What kind of system it is
- The condition of any existing system
- The size of the job
A single unit or a whole estate, the quote is built the same way: what needs doing, how we get to it and what it needs. The price is fixed before we start, with VAT shown clearly.
Before you get in touch
A few details help us quote accurately. With your enquiry, please include:
- The outside wall, roof or yard where the outdoor unit sits or would go
- The address and the type of property
- The fuse board and where it is in the property
Getting a quote is straightforward. Call or email with a few details and we’ll come back to you the same working day. Where a survey is needed, we arrange a time that suits you.
Common problems we fix in Cannon Hill
Computers, screens, lighting and people all give off heat. A small office or a busy room can warm up fast with equipment and people in it, even on a mild day.
These are the situations we see most often:
- Working from home in a room that gets too warm
- Bedrooms and offices that overheat in summer
- Too many options and no clear advice
About 1.2 miles north-west stands Southside House. Listed homes in any area need consent first, so tell us if yours is one.
Questions to ask before you book
- Which brand and model they’re proposing, and why
- What paperwork you’ll receive afterwards
- Whether the manufacturer’s warranty depends on regular servicing
After we have gone
To keep the system working properly:
- Keep the indoor unit’s filters clean
- Choose a comfortable set temperature rather than the lowest
- Keep the outdoor unit clear of leaves, plants and clutter
The work area is left tidy: dust sheets lifted, offcuts and packaging cleared, and the holes for the pipework sealed. Pipework outside is covered in trunking or insulated and neatly fixed as agreed on the survey.
Use sensible settings. Choose the right mode and a comfortable temperature rather than the lowest setting, and close windows and doors while it’s cooling.
Air conditioning around Cannon Hill
Valuation Office Agency council tax records show about 61% of homes in the Cannon Hill area date from 1919 to 1939, and about 39% of households live in terraced houses, according to Census 2021 figures. Homes of that age usually have cavity or solid brick walls, and we check which before planning the pipe route. With a terrace, the back wall or an extension roof is normally the best place for the outdoor unit. London installs often hinge on outside space, the lease and access to the building.
If your home is in one of the older streets near St James Merton, it’s worth checking whether it’s listed or in a conservation area before an install.
Cannon Hill is about 1 mile north-west of Morden, in Greater London. Cannon Hill gets the same approach as every job we take on: a look at the job first, a fixed-price quote and written records at the end. Our area takes in 764 places across Greater London, large and small. The nearest of our city pages is Croydon, around 6 miles from Cannon Hill.
The closest recent job we can point to from Cannon Hill was on Parkside, Wimbledon (SW19), about 2 miles north: installing a Mitsubishi Electric multi-split system serving four bedrooms and the main living room. See the job
You will find streets such as Aylward Road, Camborne Road and Botsford Road, each of them within reach. Jobs in SW20, SM4 and KT3 are looked at, quoted and booked the same way as anywhere else. We also cover the places around Cannon Hill: Bushey Mead (1 mile north-west), Raynes Park (1 mile west), Wimbledon Chase (1 mile north), West Barnes (1 mile west) and Merton Park (1 mile north-east). Further out, we also cover London (9 miles north-east), City of Westminster (8 miles north), Marylebone (9 miles north) and Kensington (7 miles north).
Local landmarks in Cannon Hill
Locally, jobs take us to houses, flats and workplaces close to The Edward Rayne pub, Cannon Hill Common and Harris Academy Wimbledon, among other places. For rail, the closest station is South Merton station, roughly 0.5 miles north-east. Nearby you will also find St. Anthony's Hospital (1.5 miles south) and Wimbledon Museum (1.6 miles north). Not far away are Cherry Wood and Henman Hill.
A customer’s words
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead