- Area
- Dyfed
- Postcode district
- SA61
- Nation
- Wales
- Nearby
- Milford Haven, Pembroke Dock, Fishguard
From Haverfordwest out to Milford Haven and Pembroke Dock, we arrange heat pump surveys, installation and aftercare across Dyfed. Each job is designed around the home's measured heat loss.
Heat pump services in Haverfordwest
All services in Haverfordwest:
Grants and rules for heat pumps in Wales
In Wales 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; £2,500 for air-to-air). The MCS-certified installer named in your quote applies to Ofgem for you, and the grant comes off your Haverfordwest quote.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Wales has its own permitted development rules for air source heat pumps, so we check what applies to your property, including listed building and conservation-area constraints, at the survey.
Heat pump guide prices in Haverfordwest
Guide prices for Haverfordwest and the rest of Dyfed are shown below, installed and inc VAT. We publish ranges rather than a single figure because design details move the price, and the written quote after survey fixes it.
| Home | Typical size | Installed guide price | After £7,500 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,500–£12,500 | £2,000–£5,000 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,500–£13,500 | £3,000–£6,000 |
| 3 bedroom semi or small detached | 6–9 kW | £12,000–£15,500 | £4,500–£8,000 |
| 4 bedroom detached | 8–12 kW | £14,000–£18,000 | £6,500–£10,500 |
| 5+ bedroom or larger older house | 11–16 kW | £16,500–£22,500 | £9,000–£15,000 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
How long is the heating season in Haverfordwest?
On the shortest day Haverfordwest gets about 7 hours 46 minutes of daylight, with the noon sun around 15° up. The heating season runs from autumn into spring, so a heat pump that is sized correctly and set up with weather compensation does most of its work in steady, cool conditions.
Heat pumps in Haverfordwest: questions
How long does installation take in Haverfordwest?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Haverfordwest home states the expected time.
Can you service a heat pump in Haverfordwest that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Haverfordwest, whoever fitted them. Tell us the make and model when you book.
What size heat pump does a Haverfordwest home need?
It depends on the heat loss, not the postcode. As a rough guide, a 3 bedroom semi often needs 6–9 kW, but the room-by-room survey sets the actual size for your Haverfordwest home.
Do I need new radiators for a heat pump in Haverfordwest?
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 Haverfordwest home gives a room-by-room list.

