- Area
- Greater London
- Postcode district
- SM5
- Nation
- England
- Nearby
- Sutton, Mitcham, Morden
From Carshalton out to Sutton and Mitcham, we arrange heat pump surveys, installation and aftercare across Greater London. Each job is designed around the home's measured heat loss.
Heat pump services in Carshalton
All services in Carshalton:
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 Carshalton 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 Carshalton
The ranges below are typical installed prices for homes in Greater London, including VAT. A survey sets the exact figure, because two similar-looking houses in Carshalton can need quite different radiators and pipework.
| 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.
Winter daylight and heating in Carshalton
On the shortest day Carshalton gets about 7 hours 51 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 Carshalton: questions
How long does installation take in Carshalton?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Carshalton home states the expected time.
Do I need new radiators for a heat pump in Carshalton?
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 Carshalton home gives a room-by-room list.
Can you service a heat pump in Carshalton that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Carshalton, whoever fitted them. Tell us the make and model when you book.
How long does a heat pump survey take in Carshalton?
A home survey in Carshalton 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.