Air source heat pump installers in Plymouth
MCS-certified installers serving Plymouth homeowners. Free written quotes, full Boiler Upgrade Scheme application support (up to £7,500), and no high-pressure follow-ups.
| Heat pump | New gas boiler | |
|---|---|---|
| Install (after grant) | £500–£8,500 | £2,500–£4,500 |
| Lifespan | 20+ years | 10–15 years |
| Annual running (semi) | £900–£1,400 | £1,000–£1,500 |
| Carbon (10 yrs) | ~3 tCO₂e | ~22 tCO₂e |
Free, no-obligation
Compare for my home
Step 1 of 5
~60 seconds
What kind of property is it?
Editorial standards
- Independent — No Installer Sponsorship
- Both Sides Compared, No Pre-Decided Winner
- Numbers Sourced From Ofgem + ESCT 2024–25 Studies
- Filterable By Property Type & Current Heating
- Includes BUS Grant + Real Tariff Data
- Reviewed By An MCS-Qualified Heat Engineer
Comparison is intentionally honest — for some homes a high-efficiency boiler genuinely is the better choice. HeatPumpVsBoiler.co.uk has no commercial bias toward either option.
Plymouth & heat pumps
What Plymouth homeowners should know
Plymouth (population 264K) sits in South West England, England. The most common housing stock here is terraced, semi-detached, detached — typical EPC rating of D and average annual gas usage around 12,300 kWh. This profile is well-suited to air source heat pumps with modest preparation.
Grant scheme: Boiler Upgrade Scheme. England homeowners can claim up to £7,500. Paid to your installer at install time. Owner-occupied or private-rented homes in England & Wales with a valid EPC and no outstanding insulation recommendations. Most reputable Plymouth installers handle the application end-to-end and deduct the grant from the invoice — you never see the cash.
The difference between a smooth £9,000 install and a stressful £14,000 retrofit in Plymouth usually comes down to two things: radiator sizing and pipework. Get a proper MCS heat-loss survey done first; cheaper installers often skip this step and end up fitting an oversized unit that short-cycles and underperforms.
Is your home ready?
6 signs an air source heat pump fits your home
Modern heat pumps suit far more UK homes than older models did. A short MCS survey confirms the fit — no commitment to install.
Old gas/oil/LPG boiler
Replacing a 12+ year old boiler is the natural switch point. The £7,500 grant changes the maths — heat pump may cost less than a like-for-like boiler swap.
Reasonable insulation
EPC C or D, loft insulated, cavity walls filled if applicable. Doesn't need to be perfect — modern heat pumps handle EPC D fine.
Outdoor space at side or rear
Need ~1 m² for the outdoor unit, ideally not facing the front of the house. Permitted development covers most installs without planning permission.
Off mains gas
Oil, LPG and electric heating run far more expensively than gas. Heat pump payback in these homes can be 4–7 years vs 10–14 years for gas swaps.
Listed building / conservation area
Possible, but you'll likely need planning consent. Allow extra time and budget for a sympathetic install — siting and acoustic enclosures matter.
Microbore pipework / single-pane
Heat pumps run cooler water through radiators than boilers. Microbore pipework, very small radiators, or single-glazed windows may need attention first.
Not sure?An MCS-certified installer's heat loss survey takes ~60 minutes and tells you whether the fit is straightforward, needs a few upgrades first, or isn't the right choice. Most surveys are free and there's no obligation.
Heat pump vs gas boiler — the verdict
How they compare across 25 years
A new gas boiler typically lasts 10–15 years; a heat pump 20+. Across an average 25-year homeownership window, here is the difference for a typical UK semi-detached home.
lifetime carbon saving over a like-for-like gas boiler swap
boiler replacements avoided over a heat pump's 20-year lifespan
estimated 25-year total cost gap (heat pump cheaper, off-gas-grid)
average heat-pump efficiency vs. a 90% efficient combi boiler
How it works
Three steps to a clear answer
No obligation, no pushy follow-ups, no fees from us — ever.
Side-by-side comparison
We compare a heat pump vs a new gas boiler on five axes: install cost (after grants), annual running cost (price-cap and standing charges included), expected lifetime, comfort and noise, carbon footprint, and resale-value impact.
Filtered for your home
The right answer depends on your property. We filter for your property type, current heating, insulation level and region — comparing the options that actually apply to you, not the average UK home.
Clear next step
If a heat pump wins for your situation, we connect you with installers. If a new boiler is genuinely the better choice, we say so — no incentive to push a heat pump that won't suit your home.
Typical UK price ranges
What an air source heat pump costs in 2026
Most properties fall into one of three tiers. Ranges below are installed costs before the £7,500 BUS grant — after-grant figures are noted in each tier.
£8,000 – £11,000
Flat / small terrace
4–6 kW air source heat pump, 1 hot water cylinder, modest radiator upgrades. After £7,500 BUS grant: from £500.
Typical: 1–2 day install
£9,500 – £13,500
Semi-detached / mid terrace
6–10 kW heat pump, 200–250L cylinder, 4–6 radiator changes, light pipework. After grant: typically £2,000–£6,000.
Typical: 2–3 day install
£11,000 – £16,000
Detached / 4-bed+
8–14 kW heat pump, 250–300L cylinder, broader radiator upgrade, electrical works. After grant: typically £3,500–£8,500.
Typical: 3–5 day install
💷 BUS grant: up to £7,500
Paid by Ofgem directly to your installer. No upfront payment from you, no complex paperwork. Available in England & Wales until March 2028.
🏴 Scotland: even more
Home Energy Scotland offers up to £7,500 cashback PLUS an optional £7,500 interest-free loan. Total funding up to £15,000 for a heat pump install.
Ranges shown are based on current MCS-certified installer quotes across the UK. Actual pricing varies by property condition, accessibility, radiator and pipework state, region and installer. Only a written quote tells you the price for your home.
Common questions
Air source heat pump FAQs
Installed costs typically run £8,000 to £14,000 before grant for a normal home. Detached or larger properties can reach £16,000. After the £7,500 BUS grant in England & Wales, most homeowners pay £500–£8,500. Scotland's Home Energy Scotland scheme offers up to £15,000 in combined grant + interest-free loan, often making the heat pump cheaper than a like-for-like boiler replacement.
Verify any installer's MCS certification at mcscertified.com.
Nearby coverage
Also serving nearby England towns
Ready to take a look?
Heat pump options for Plymouth homeowners
The £7,500 BUS grant runs to 2028 — there's no rush, but waiting another year on an old gas, oil or LPG boiler costs you running-cost savings every month. A free survey tells you whether the fit is straightforward, with zero commitment.
Educational content — not a substitute for an MCS-certified survey.
Authoritative sources cited
- Energy Saving Trust UK heat pump trial 2024 ↗750-home field trial of UK heat-pump performance — used for the SCOP, comfort, and noise figures.
- Ofgem domestic gas + electric tariff data ↗Live price-cap and standing-charge data — used to calculate running-cost comparisons.
- Gas Safe Register ↗UK official register of gas-safe boiler installers — quoted on the boiler side of every comparison.
- Climate Change Committee — UK net-zero pathway ↗Independent statutory body advising UK government on carbon. Source for the 25-year carbon-emission projections in our comparison tables.
Statistics and figures on this site are derived from these sources unless otherwise stated. Errors? We correct promptly — see our corrections policy.
Continue your research
More UK heat pump resources
Sister sites we operate, each focused on a different decision step.