- Area
- Lancashire
- Postcode district
- BB3
- Nation
- England
- Nearby
- Blackburn, Accrington, Chorley
We cover Darwen and nearby Blackburn, Accrington and the rest of Lancashire. A heat pump is a whole-system change, so the survey looks at radiators, pipework, the hot water cylinder and the best spot for the outdoor unit.
Heat pump services in Darwen
All services in Darwen:
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 Darwen 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 Darwen
These are guide prices for Lancashire, installed and including VAT. Your final price is fixed in a written quote after the survey and depends on the heat loss of the house, the radiators that need changing and where the unit goes.
| Home | Typical size | Installed guide price | After £7,500 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,300–£12,250 | £1,800–£4,750 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,300–£13,250 | £2,800–£5,750 |
| 3 bedroom semi or small detached | 6–9 kW | £11,750–£15,200 | £4,250–£7,700 |
| 4 bedroom detached | 8–12 kW | £13,700–£17,650 | £6,200–£10,150 |
| 5+ bedroom or larger older house | 11–16 kW | £16,150–£22,050 | £8,650–£14,550 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
Designing for Darwen's winters
Darwen sees roughly 7 hours 26 minutes of daylight in December and 17 hours 05 minutes in June. With a longer heating season than the south, the gains from low flow temperatures and good controls add up over the year.
Heat pumps in Darwen: questions
How long does a heat pump survey take in Darwen?
A home survey in Darwen 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.
Where would the outdoor unit go on a Darwen house?
Usually at the side or rear, on a level base with space around it for airflow and servicing, away from bedroom windows where possible. The surveyor checks positions at your Darwen home.
Can you service a heat pump in Darwen that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Darwen, whoever fitted them. Tell us the make and model when you book.
Do you cover Blackburn as well as Darwen?
Yes. We arrange surveys and installation in Blackburn, which is about 4 miles north of Darwen, and across Lancashire.