Greater London · Heat pump installation
Heat pump installation in Ham, Greater London
F-Gas certified and NICEIC approved, we cover Ham for air source heat pumps. A fixed price before any work starts, and a 24/7 emergency line.
- Plans to switch to electric heating with a heat pump
- Ageing boilers that will need replacing
- Deciding on the outdoor unit position
Air source heat pumps in Ham, done properly
Installing an air source heat pump in a home is zero-rated for VAT until 31 March 2027, then 5%. That follows HMRC Notice 708/6, and it does not apply to businesses. For air-to-air systems, we confirm the VAT on your quote. Please treat this as general information rather than tax advice. Common call-outs are for not knowing whether a grant applies and wanting to stop using oil, LPG or gas for heating, on underfloor heating, homes heated by oil, LPG or gas and air-to-water heat pumps.
In a London area like Ham, many homes are flats or terraces with little outside space, and that decides which kind of heat pump works. An air-to-water system needs space outside and normally a hot water cylinder inside, while air-to-air units take less room.
Any work on the refrigerant circuit is recorded: what was done, the refrigerant type and any amount added or recovered. Keep the records with the manual and the warranty documents, ready for the next service or a warranty query.
- Location
- Ham (TW10, KT2, TW11)
- Wider area
- Greater London
- Guide price
- £8,000–£16,000 before the grant, 0% VAT on homes
- Certified
- F-Gas certified, NICEIC approved, MCS
- Pricing
- A fixed-price quote up front
- Telephone
- 07833 053749
- Reviewed
- 30 October 2026
Heat pumps in Ham: local notes
The Valuation Office Agency’s council tax figures date about 63% of homes in and around Ham to the post-war years, 1945 to 1972, and the last census (2021) found about 40% of households in terraced houses. 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. London homes can be short of space for an outdoor unit and cylinder, which affects the choice of heat pump.
Ham House, roughly 0.6 miles north, is a reminder to check your home’s listing status: permitted development does not cover listed buildings. Period properties close to Ham Christian Centre can suit a heat pump, though insulation and any heritage protection are checked first.
Ham is about 1 mile south-east of Twickenham, in Greater London. Properties in Ham get the same service as everywhere we cover: diagnosis first, a fixed price and proper paperwork when we’ve finished. Across Greater London, we cover 764 places, and Ham is one of them. London is in our area too, about 10 miles from Ham.
The closest recent job we can point to from Ham was on Richmond Hill, Richmond (TW10), about 1 mile north: installing a Mitsubishi Electric Zubadan multi-split system serving four bedrooms, the study and the living room: six indoor units in total.
Our engineers work on New Road, Lock Road and Cave Road and the roads around them. The A307 pass through or close to Ham, which keeps journeys to surveys and visits simple. Nearby, we also cover air source heat pumps in Petersham (1 mile north), Eel Pie Island (1 mile north-west), Strawberry Hill (1 mile west), Teddington (1 mile south-west) and Richmond (1 mile north). Further out, we also cover London (10 miles north-east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east) and Kensington (6 miles north-east).
What’s near Ham
We fit and service air conditioning in homes and premises around Grey Court School, The New Inn Public House and Sudbrook Park. Ham’s nearest station is Teddington station, about 1.2 miles south-west of the centre. Other landmarks nearby include Eel Pie Island Museum (1.1 miles north-west) and Bentall Centre (1.6 miles south). Green spaces nearby include Kew Gardens Lake and Richmond Hill.
How the job changes from property to property
Hot water cylinders
Cylinder size is based on your household’s needs.
Outdoor unit position and planning
Flats have tighter limits, and an Article 4 direction can remove permitted development rights. Listed building consent is a separate matter and we check what applies to you.
When it’s something else
We won’t sell you work that does not address the problem, so here are the limits:
- Disconnecting or servicing a gas boiler
- Insulation work, such as loft or cavity wall insulation
- Tax rulings, which only HMRC can give
If you are not sure, just give us a ring on 07833 053749 or write to us at info@aircondoctor.co.uk and we’ll give you a straight answer.
Where we work
- Homes heated by oil, LPG or gas
- Air-to-water heat pumps
- Air-to-air heat pumps
- Hot water cylinders
- Underfloor heating
- Radiator systems
The process
Every visit follows the same order: check the plan with you, put the dust sheets down, do the work, test what we have done and explain it all to you. The visit itself takes a few days for most air-to-water installations, with air-to-air systems often quicker. Parking bays, permits and roof or balcony access are the first things we ask about in Ham.
- We start with your plans and the property.
- The survey checks heat loss, emitters, hot water and the outdoor unit position.
- We explain which type of heat pump suits the home and whether a grant could apply.
- The system is installed and connected to the controls.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
Getting ready for the visit
- Keep pets and children away from the work area
- Unlock any gate, garage or side passage we need
- Tell us about access, such as roof hatches, high walls or locked plant areas
Getting a quote
Want a quote for air source heat pumps? Please call 07833 053749 or email us and tell us about the job. We’ll talk you through the options and give you a fixed-price quote before you commit to anything.
Advice
Nearby places to Ham
More services for Ham
Common questions in Ham
Is a heat pump in Ham permitted development?
The answer turns on the property and where the outdoor unit would sit. The Ham Common Conservation Area takes in the middle of Ham. Heat pumps on houses are often permitted development, but listed buildings need consent and conservation areas restrict outdoor units facing a road. Where it’s needed, we check with Richmond-Upon-Thames council, which is usually the planning authority for Ham.
Do I need permission to put air conditioning in my flat in Ham?
Usually, yes, though leaseholders normally need the freeholder’s agreement. 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.
What does F-Gas certified mean?
Anyone installing, repairing or servicing the refrigerant side must be qualified, and their company certified. It’s worth checking before booking, and we are happy to show ours.
How do you keep the place clean during the work?
Floors and furniture near the work are covered with dust sheets before we start, and the area is kept tidy throughout. Before we leave, we clear up and run through the work with you.
Do you look at the job first?
Yes. Every job is looked at first, either on a site survey or from pictures and details for simple jobs. Then you get a fixed-price quote.
Can I do the refrigerant work myself?
The refrigerant side has to be done by a qualified engineer working for an F-Gas certified company. That’s the law, not just our preference, and manufacturers expect it for their warranty too. We can quote for the whole job, from supply to commissioning.
Which manufacturers do you install and repair?
The main ones, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. For a new system, we suggest the make and model that suit the property and tell you why.
Aftercare tips
Here’s the after-treatment advice, short and simple:
- Keep the outdoor unit clear all year
- Let the heat pump run steadily, as set up at handover
- Diary the next service
The warranty on the heat pump is the manufacturer’s, on its own terms. We go through the conditions with you, including any servicing they ask for.
Keep the outdoor unit clear of leaves, plants and stored items. It needs good airflow to collect heat from outside so keep it unobstructed.
A customer’s words
“Office air con broke down in the July heatwave. Called at 8am, engineer was here by noon and fixed within 2 hours. Brilliant emergency response. They now hold the service contract for the whole building.”
James T., Crawley, office manager