Heat pump installation in London
Outdoor space usually decides it in London. See whether your home suits a heat pump, then get a fixed price from an MCS-certified installer.
Heat pumps in London houses and flats
The biggest question in London is usually space, not climate. Outer-borough semis with a side passage or decent garden are often straightforward. Terraces can work, but the outdoor unit has to sit somewhere sensible and solid walls need a careful heat loss check. Flats are the hardest. In a flat, the freeholder and any shared outside space usually decide whether a unit can go in at all.
The Boiler Upgrade Scheme gives £7,500 off an air source heat pump. Your MCS-certified installer claims it and takes it off your bill.
Victorian and Edwardian terraces: Workable in many cases, but the unit needs a spot in a narrow garden or side return. Solid walls and big sash windows mean the heat loss survey matters more than usual.
Converted flats and mansion blocks: Hard in most flats. You need the freeholder's consent, a place for the outdoor unit and often agreement from neighbours sharing the building.
Outer-borough 1930s semis: Often the best heat pump candidate in London, with cavity walls and room at the side or back for the unit.
Heat pump installation prices in London
| Job | Typical price | Fitting time |
|---|---|---|
| Air source heat pump, before any grant | £11,000 to £14,500 | 2 to 5 days |
| After the £7,500 Boiler Upgrade Scheme grant | £3,500 to £7,000 | grant applied by installer |
| Radiator upgrades, if needed | £300 to £600 each | same visit |
| Hot water cylinder | usually included | same visit |
Typical prices including VAT, checked October 2026. Your installer gives you a fixed price in writing before any work starts. More detail in our heat pump installation cost guide.
Is a new boiler the better call?
In a draughty or hard-to-insulate London home, a modern combi can still be the smarter buy. We will tell you straight.
See boiler replacement optionsAreas we cover around London
- Islington
- Hackney
- Camden
- Brixton
- Wimbledon
- Ealing
- Croydon
- Walthamstow
- Greenwich
- Richmond
Also nearby: Heat pump installation in Reading, Heat pump installation in Luton, Heat pump installation in Chelmsford, Heat pump installation in Brighton
Heat pump installation in London: questions
How much is a heat pump in London?
An air source heat pump typically costs £11,000 to £14,500 before any grant. With the £7,500 Boiler Upgrade Scheme grant, most people pay roughly £3,500 to £7,000. Any larger radiators are shown as a separate line in the fixed quote.
Can I get the Boiler Upgrade Scheme grant in London?
Yes, if you own the home, it has a valid EPC, you are replacing a fossil-fuel heating system, and the installer is MCS certified. The installer handles the application and takes the £7,500 off your bill.
I live in a conservation area. Can I still have one?
Possibly. London has many conservation areas, and the permitted development rules are stricter there, especially for units visible from the street. Your installer will check whether you need planning permission before quoting.
Can I fit a heat pump in a London flat?
It is difficult but not impossible. You need the freeholder's permission, somewhere for the outdoor unit, and space indoors for a hot water cylinder. If those are not available, a new boiler is usually the better call.