- Area
- Dyfed
- Postcode district
- SA31
- Nation
- Wales
- Nearby
- Llanelli, Ammanford, Gorseinon
From Carmarthen out to Llanelli and Ammanford, 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 Carmarthen
All services in Carmarthen:
Grants and rules for heat pumps in Wales
Homes in Carmarthen can use the Boiler Upgrade Scheme, which applies in Wales as well as England: £7,500 towards an air source heat pump, or £9,000 when it replaces oil or LPG heating for installations from 21 July 2026 to 31 March 2027. The MCS-certified installer named in your quote applies and deducts the grant.
There is no VAT on installing a heat pump anywhere in the UK, Wales included, until 31 March 2027. Planning rules for heat pumps in Wales are set by the Welsh Government and differ from England's, so the surveyor checks the unit position against them.
Heat pump guide prices in Carmarthen
These are guide prices for Dyfed, 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 | £9,500–£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.
Designing for Carmarthen's winters
Carmarthen has about 7 hours 46 minutes of daylight at midwinter and 16 hours 42 minutes at midsummer. That swing matters if you pair a heat pump with solar panels: summer generation can cover much of the hot water, winter generation far less.
Heat pumps in Carmarthen: questions
Do I need new radiators for a heat pump in Carmarthen?
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 Carmarthen home gives a room-by-room list.
How long does a heat pump survey take in Carmarthen?
A home survey in Carmarthen 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.
Do you cover Llanelli as well as Carmarthen?
Yes. We arrange surveys and installation in Llanelli, which is about 13 miles south-east of Carmarthen, and across Dyfed.
How soon can you survey a home in Carmarthen?
Survey dates depend on how busy installers are in Dyfed. We offer the next available dates when you enquire and confirm them in writing.