In Conwy, Gwynedd, Denbighshire the average household spends £1,663 a year on heating — 73% higher than the UK average of £960. Typical homes are 84.5 m² with 4.7 rooms. The local population is around 6,388 residents (Census 2021). Switching to an air-source heat pump could save up to £665 a year for an average home after the £7,500 Boiler Upgrade Scheme grant.
Areas covered
Corwen, Cynwyd, Glan-yr-afon, Glasfryn, Llandrillo, Llangwm, Maerdy, Ty Nant, Betws Gwerfil Goch, Bryneglwys, Carrog, Cerrigydrudion, Clawdd Poncen, Derwen, Glyndyfrdwy, Gwyddelwern, Llanfihangel Glyn Myfyr, Llidiart-y-Parc, Melin-y-Wig
See more in the LL area hub.
Typical air-source heat-pump installation costs range from about £6,000 at the low end to roughly £18,000 at the high end. Most homes fall somewhere between £7,000 and £15,000. These prices are before the £7,500 BUS grant (in addition, qualifying rural and island homes in Scotland may receive a further £1,500 uplift under the Home Energy Scotland scheme, for up to £9 000 of grant funding).
Installation costs in Conwy, Gwynedd, Denbighshire are broadly in line with the UK average.
| Category | National cost range | Adjusted for LL21 (×0.96) | Net after £7,500 BUS grant |
|---|---|---|---|
| Small flats / simple installs | £ 6,000 – £ 7,000 | £ 5,760 – £ 6,720 | from ~£ 1,000* |
| 2–3-bed semis / moderate upgrades | £ 8,000 – £ 12,000 | £ 7,680 – £ 11,520 | from ~£ 1,000* |
| Large detached / extensive work | £ 13,000 – £ 18,000 | £ 12,480 – £ 17,280 | £ 4,980 – £ 9,780 |
* Minimum net costs rarely fall below £1,000 after grant, since most installs incur at least minor extra work.
| Lower end |
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|---|---|
| Mid end |
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| Upper end |
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Heat pump FAQs
How much does a heat pump cost here?
About £2,740 for a typical 3-bedroom home after the £7,500 grant.
How much can I save on heating bills?
Roughly £665 per year for the average home at current price-cap rates.
- £1,663 Average Heating Cost UK avg £960
- 84.5 m² Median Floor Area UK avg 84.7 m²
- 4.7 Average Rooms UK avg 4.4
Local energy snapshot
Latest tariff window: 2025Q4
Ofgem region & price cap
North Wales and Mersey · 27.72p/kWh · 69.95p/day
PV potential (south-facing)
785 kWh per kWp/year
Dwelling mix
EPC certificates
1,791 on record
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Also in Your Area: Solar Panel Potential
Heat pumps increase electricity usage. Solar panels can offset your higher bills.
Solar saves ~£805/year
Payback: 15.2 years
Solar saves ~£971/year
Payback: 12.6 years
- Typical system 6 kW
- Installation cost ~£12,200
- Annual generation 4,708 kWh
See detailed solar data for LL21 →
Data from our sister site, Solar By Postcode UK
Compare nearby areas: LL18 (Conwy, Denbighshire, Flintshire) · LL19 (Denbighshire, Flintshire) · LL20 (Denbighshire, Wrexham) · LL22 (Conwy, Denbighshire) · LL23 (Gwynedd) · LL24 (Conwy)
Heat Pump Installation & Ownership Guide
Timeline, planning rules, maintenance and what to expect
Heat Pump Installation & Ownership Guide
Timeline, planning rules, maintenance and what to expect
Official Heat Pump Resources & Data Sources
BUS, Ofgem, planning rules, MCS and the data behind the numbers
Official Heat Pump Resources & Data Sources
BUS, Ofgem, planning rules, MCS and the data behind the numbers