- Area
- Mid Glamorgan
- Postcode district
- CF45
- Nation
- Wales
- Main grant
- Boiler Upgrade Scheme, £7,500
- Survey
- Free for installation enquiries
Heat pump grants in Mountain Ash: what to expect
Every property in Mountain Ash is different, so the design starts from measurements rather than a rule of thumb. That keeps the system the right size and the running costs predictable.
Across Mountain Ash and Mid Glamorgan, the paperwork for funding applications is prepared alongside your quote. For landlords with property in Mountain Ash, we explain the funding position for each home before quoting.
Heat pump funding depends on which UK nation you live in, so we confirm what applies to your home and handle the grant steps alongside your quote.
- Homes in England and Wales on oil or LPG, where a higher grant applies between set dates
- Landlords in England and Wales, who can apply for their let properties
- Homeowners in England and Wales replacing gas, oil, LPG or electric heating
What's included
- MCS certificate and handover documents after installation
- Boiler Upgrade Scheme application made by the MCS-certified installer (England and Wales)
- Installation scheduled around your grant confirmation or funding offer
- Written quote showing the full price and any grant deduction
- Eligibility check for the scheme that covers your nation
Homeowners in Mountain Ash get a clear written quote showing the full price and any funding that applies.
Grants and rules for heat pumps in Wales
Homes in Mountain Ash 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.
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.
Grants and VAT across the UK
| Nation | Main support for heat pumps | Key points |
|---|---|---|
| England | Boiler Upgrade Scheme: £7,500 (£9,000 replacing oil or LPG, 21 July 2026 to 31 March 2027; £2,500 air-to-air) | MCS-certified installer applies; deducted from your quote |
| Wales | Boiler Upgrade Scheme: £7,500 (£9,000 replacing oil or LPG, 21 July 2026 to 31 March 2027) | Same scheme and rules as England |
| Scotland | Home Energy Scotland grant up to £7,500, plus up to £1,500 rural uplift; interest-free loan up to £7,500 | You apply; written offer needed before work starts |
| Northern Ireland | No dedicated heat pump grant for homeowners at present | Some heat pumps funded through NISEP in the past |
Heat pump installation is zero-rated for VAT across the UK, including Northern Ireland, until 31 March 2027. Scheme figures as at October 2026; check gov.uk, Ofgem or Home Energy Scotland before relying on them.
How long is the heating season in Mountain Ash?
On the shortest day Mountain Ash gets about 7 hours 48 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.
What happens after you enquire in Mountain Ash?
- Tell us about your home: postcode, property type and current heating.
- We book a survey in Mountain Ash; the surveyor measures rooms, windows and radiators and looks at cylinder space.
- The design and quote arrive in writing, including radiator changes and the outdoor unit position.
- On installation days the old system is removed and the new one fitted and filled.
- We commission the heat pump, show you the controls and register the installation.
Heat pump grants in Mountain Ash: questions
How long does a heat pump survey take in Mountain Ash?
A home survey in Mountain Ash 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.
Can you service a heat pump in Mountain Ash that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Mountain Ash, whoever fitted them. Tell us the make and model when you book.
Do you cover Aberdare as well as Mountain Ash?
Yes. We arrange surveys and installation in Aberdare, which is about 4 miles north-west of Mountain Ash, and across Mid Glamorgan.
How much is the heat pump grant?
It depends on where you live. In England and Wales, the Boiler Upgrade Scheme pays £7,500 towards an air-to-water heat pump, or £9,000 when replacing oil or LPG heating for installations from 21 July 2026 to 31 March 2027. In Scotland, Home Energy Scotland offers up to £7,500, plus a rural uplift and an optional loan. Northern Ireland has no dedicated grant at present.
Do I need an EPC for the Boiler Upgrade Scheme?
No longer. Since 28 April 2026, a valid EPC is not required for the Boiler Upgrade Scheme in England and Wales. The system must still meet the home's full heating and hot water needs, which the room-by-room heat loss calculation confirms. The other eligibility rules, such as owning the property, still apply.