Heat pump installation in Plymouth
An honest answer on your Plymouth home first, then a fixed price from an MCS-certified installer with the grant taken off.
Heat pumps in Plymouth homes
Plymouth's mild coastal climate is kinder to heat pumps than many parts of the UK, but the house still matters most. A semi with insulated cavity walls and a garden is often a good match. A solid-wall terrace on a steep street, with a tiny yard, may need insulation and bigger radiators first. Close to the sea, ask about corrosion protection for the outdoor unit.
The Boiler Upgrade Scheme gives £7,500 off an air source heat pump. Your MCS-certified installer claims it and takes it off your bill.
Interwar and postwar semis: A strong candidate once the loft and cavity walls are insulated. Most have a side or rear garden where the unit can sit.
Victorian terraces on the hills: Possible but often tricky, with solid walls and small, sloping back yards. Insulation and bigger radiators usually come first.
Waterfront and city-centre flats: Rarely straightforward in flats, as you need consent and a suitable spot outside. Some blocks use electric or communal heating.
Heat pump installation prices in Plymouth
| Job | Typical price | Fitting time |
|---|---|---|
| Air source heat pump, before any grant | £11,000 to £14,500 | 2 to 5 days |
| After the £7,500 Boiler Upgrade Scheme grant | £3,500 to £7,000 | grant applied by installer |
| Radiator upgrades, if needed | £300 to £600 each | same visit |
| Hot water cylinder | usually included | same visit |
Typical prices including VAT, checked October 2026. Your installer gives you a fixed price in writing before any work starts. More detail in our heat pump installation cost guide.
Is a new boiler the better call?
In a draughty or hard-to-insulate Plymouth home, a modern combi can still be the smarter buy. We will tell you straight.
See boiler replacement optionsAreas we cover around Plymouth
- Plympton
- Plymstock
- Mutley
- Mannamead
- Peverell
- Stoke
- Devonport
- Stonehouse
- Hartley
- Saltash
Also nearby: Heat pump installation in Exeter
Heat pump installation in Plymouth: questions
How much is a heat pump in Plymouth?
Budget £11,000 to £14,500 for a typical air source system before the grant. After the £7,500 Boiler Upgrade Scheme grant, most people pay around £3,500 to £7,000. Any radiators that need upgrading are included in your fixed quote.
Will sea air damage a heat pump?
Homes close to the coast can see faster corrosion on outdoor equipment. Some manufacturers offer coastal protection or coatings, and placing the unit out of direct spray helps. Ask your installer about this if you live near the waterfront.
Am I eligible for the £7,500 grant?
Most Plymouth homeowners are, provided an MCS-certified installer fits the system, you are replacing a fossil-fuel boiler and you have a valid EPC. Insulation is not a condition of the grant, though it often helps the system work well.
Can a heat pump go in a sloping back garden?
Usually, yes. The unit needs a firm, level base, which may mean a small plinth or wall bracket. Your installer will also check it sits far enough from the boundary to stay within permitted development rules.