Greater London · Heat pump installation
Cannon Hill air source heat pumps
Air source heat pumps in Cannon Hill from an F-Gas certified company, with warranty terms explained brand by brand. We reply to enquiries the same working day.
- Working out where a cylinder could go
- Checking eligibility for a heat pump grant
- Checking emitters for a heat pump
Air source heat pumps in Cannon Hill, done properly
Air source heat pumps collect heat from outdoor air and bring it inside with electricity running the compressor and fans. The technology is close to air conditioning, which is why we install both, and air-to-air heat pumps are sometimes simply called air conditioning. The work covers air-to-air heat pumps, hot water cylinders and air-to-water heat pumps, and common reasons people get in touch are finding a place for the outdoor unit and not knowing whether a grant applies.
In a flat in Cannon Hill, the lease and the freeholder normally decide where a heat pump can go. The planning rules for flats are stricter than for houses, and we check before designing.
We’re an F-Gas certified company, NICEIC approved for electrical work, MCS certified for heat pumps and a Checkatrade member. Our engineers hold the F-gas qualifications needed to work on refrigerant.
- Where
- Cannon Hill (SW20, SM4, KT3)
- Region
- Greater London
- Guide price
- £8,000–£16,000 (0% VAT on homes), before the grant
- Quote
- Fixed-price quote after a site survey
- Accreditations
- F-Gas certified company, NICEIC approved, MCS
- Telephone
- 07833 053749
- Last updated
- 30 October 2026
What affects the cost of air source heat pumps
Every job gets its own quote. This is what makes a difference:
- Access, including height, roofs and ladders
- The pipe route between the units
- The equipment or parts the job needs
What you pay depends on the system and the number of rooms or units, the access and what the work involves. You get a fixed price before we start, so there are no surprises.
Helping us quote
Photos let us diagnose from a distance. Try to include:
- The paperwork from the last service, if you have it
- A short video of any fault, such as a noise or a flashing light
- A close-up of the unit’s label showing the model number
Photos are enough for some jobs; others need a visit first. Bigger systems, commercial sites and awkward pipe routes are normally surveyed on site. Either way, you get a fixed price before any work is booked.
How it works
We book the visit for a day and time that suit you, and we keep you posted if anything changes. When we arrive, we check the job against the survey or the photos you sent. If something is different, we talk it through with you before carrying on. After that, it takes several days for an air-to-water system with a new cylinder, less for an air-to-air system. Parking bays, permits and roof or balcony access are the first things we ask about in Cannon Hill.
- We start with your plans and the property.
- A survey covers heat loss, radiators, hot water and where the outdoor unit could sit.
- You get our view on the right type for the house, and on whether the Boiler Upgrade Scheme applies.
- We install the heat pump and connect it up.
- After commissioning, you get the MCS certificate and a handover.
Before we arrive
- Arrange for someone to be there to let us in
- Find the manual or the paperwork for the system, if you have it
- Let us know if the building has a permit or sign-in process
Ask for a quote
Here’s what helps us quote: the address and the type of property, pictures of the rooms or units, the brand and model of anything already fitted and anything you’ve noticed, such as an error code or a noise. Then call us on 07833 053749 or drop us a line.
Related advice
Places near Cannon Hill
Also in Cannon Hill
Do you need air source heat pumps in Cannon Hill?
Homes with electric heating sometimes look at heat pumps as an alternative. The survey tells you whether it’s practical and what’s involved along with whether any grant could apply.
The things we’re asked about most are:
- Radiators that may be too small for a heat pump
- Working out where a cylinder could go
- Deciding which kind of heat pump suits the home
If your home is listed, like Southside House about 1.2 miles north-west, listed building consent comes before any heat pump work.
What to look for in a quote
- If the quote is based on a survey, photos or a diagnosis
- How VAT is shown, and which rate applies
- Whose warranty applies, and on what terms
Air source heat pumps around Cannon Hill
Valuation Office Agency council tax records show about 61% of homes in and around Cannon Hill date from 1919 to 1939, and about 39% of households live in terraced houses, according to the 2021 Census. For homes of that age, the survey checks the insulation, the radiators and the hot water setup. Shared walls keep a terrace’s heat loss down, while gardens next door make the noise check on the outdoor unit important. In London, outside space and the rules for flats often decide which kind of heat pump suits.
If your home is one of the older properties near St James Merton, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
Cannon Hill is about 1 mile north-west of Morden, in Greater London. From the centre of Cannon Hill to the outskirts, our engineers cover air source heat pumps, from small jobs to large ones. In Greater London alone we list 764 places, and Cannon Hill is one. Croydon is in our area too, about 6 miles from Cannon Hill.
Not far from Cannon Hill, a recent job of ours was on Parkside, Wimbledon (SW19), about 2 miles north: installing a Mitsubishi Electric multi-split system serving four bedrooms and the main living room.
If your postcode is in SW20, SM4 and KT3, you are inside the area we cover. Local streets include Aylward Road, Camborne Road and Botsford Road, and we cover them all. Places around Cannon Hill that are also on our list: 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). Larger places within reach include 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. The closest station to Cannon Hill is South Merton station, about 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). For a walk, there’s Cherry Wood and Henman Hill.
Questions from Cannon Hill
Can you fit air conditioning in a London flat in Cannon Hill?
In many cases, yes, once the lease and the building’s rules are checked. We look at where the outdoor unit could go, such as a balcony, flat roof or rear wall, and write it up for the freeholder or agent.
Can I get the Boiler Upgrade Scheme grant in Cannon Hill?
Cannon Hill is in England, where the Boiler Upgrade Scheme runs. Whether your home qualifies, and for how much, depends on the type of heat pump and the heating it replaces. You don’t apply yourself: the MCS certified installer does, which is us.
Do you cover Cannon Hill?
Yes. Our engineers work in Cannon Hill, within the South East and London area we cover. Our base is in East Grinstead, West Sussex.
Whose job is it to check the system for leaks?
The F-gas rules share it between the equipment’s operator and the engineers who work on it. The interval depends on the refrigerant charge, measured in tonnes of CO2 equivalent: at least every 12 months from 5 tCO2e, and every 6 months from 50 tCO2e.
Which brands do you work with?
Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries, Hitachi and others. For new systems, we recommend a brand and model to suit the job and tell you why.
Can I fit air conditioning or a heat pump myself?
Not the refrigerant work. Under the F-gas rules, it must be done by qualified engineers from a certified company, and a new electrical circuit is notifiable building work unless a registered competent person does it.
Do I need new radiators for a heat pump?
We find out during the survey. Where a radiator is already large enough, it stays, and any that need upsizing are set out in the quote.
Why deal with it now?
Choosing between air-to-water and air-to-air is easier with the facts. Air-to-water works with radiators and a cylinder, with a £7,500 grant for eligible homes, while air-to-air heats and cools rooms and has a £2,500 grant only in limited cases, and we explain which fits your home. Approvals for flats in Cannon Hill can take longer than the install itself.
Height, access and the distance between the indoor and outdoor units can all change the price. Each of those is built into the quote, and the price is fixed before we start.
Why us?
- Leading brands including Daikin, Mitsubishi Electric and Fujitsu
- MCS certification for heat pump work
- An F-Gas certified company, as the law requires
- Electrical work covered by our NICEIC approval
Read our cost guide and our accreditations.
What a customer said
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath