- Area
- Greater London
- Postcode district
- SE23
- Nation
- England
- Nearby
- Sydenham, Catford, Dulwich
Homes in Forest Hill and the wider SE23 district can book a free survey for installation enquiries. Nearby we also cover Sydenham (about a mile south) and Catford.
Heat pump services in Forest Hill
All services in Forest Hill:
Grants and rules for heat pumps in England
In England the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump (£9,000 if it replaces oil or LPG, from 21 July 2026 to 31 March 2027), and since 28 April 2026 a valid EPC is no longer needed. The grant is applied for by the MCS-certified installer and shown as a deduction on your Forest Hill quote.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Since 29 May 2025, permitted development in England allows up to two air source heat pumps on a house, each up to 1.5 m³, with no blanket 1 m boundary rule — the installation must still meet the MCS planning standards, including the noise check. Listed buildings, flats and some conservation-area positions need extra consent, which we check at survey.
Heat pump guide prices in Forest Hill
Here are typical prices for an air source heat pump in Greater London, installed and including VAT. Use the guide price tool for a figure based on your home, then a survey confirms it in writing.
| Home | Typical size | Installed guide price | After £7,500 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £10,650–£14,000 | £3,150–£6,500 |
| 2–3 bedroom terrace or semi | 5–7 kW | £11,750–£15,100 | £4,250–£7,600 |
| 3 bedroom semi or small detached | 6–9 kW | £13,450–£17,350 | £5,950–£9,850 |
| 4 bedroom detached | 8–12 kW | £15,700–£20,150 | £8,200–£12,650 |
| 5+ bedroom or larger older house | 11–16 kW | £18,500–£25,200 | £11,000–£17,700 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
Designing for Forest Hill's winters
On the shortest day Forest Hill gets about 7 hours 50 minutes of daylight, and the winter sun reaches only around 15° above the horizon at noon. Winters this far south are milder than in most of the UK, which helps a heat pump run at low flow temperatures for much of the season.
Heat pumps in Forest Hill: questions
Can you service a heat pump in Forest Hill that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Forest Hill, whoever fitted them. Tell us the make and model when you book.
Do I need new radiators for a heat pump in Forest Hill?
Often some, not all. Heat pumps run best at lower water temperatures, so rooms with small radiators may need larger ones. The survey of your Forest Hill home gives a room-by-room list.
How long does a heat pump survey take in Forest Hill?
A home survey in Forest Hill usually takes one to two hours. The surveyor measures every heated room, checks windows, walls and radiators, and looks at where the outdoor unit and cylinder can go.
How long does installation take in Forest Hill?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Forest Hill home states the expected time.

