The Boiler Upgrade Scheme grant of £7,500 dramatically changes the heat pump economics in 2026. Here is the complete cost and value analysis to help you decide. BUS Grant £7,500 — Updated April 2026
Heat Pump Cost UK 2026 — Full Breakdown
Cost Element
Air Source Heat Pump
Ground Source Heat Pump
Notes
Heat pump unit
£4,000-£8,000
£8,000-£15,000
Depends on size/brand
Installation labour
£2,000-£4,000
£5,000-£15,000 (incl. groundwork)
GSHP needs trenches or boreholes
Modifications (pipework, radiators)
£500-£3,000
£500-£2,000
Larger radiators often needed
Total installed cost
£8,000-£15,000
£15,000-£35,000
—
Less: BUS grant
−£7,500
−£7,500
England and Wales only; MCS installer
Net cost after grant
£500-£7,500
£7,500-£27,500
ASHP most affordable after grant
Is Your Home Suitable for a Heat Pump?
Factor
Ideal for Heat Pump
Less Ideal
Solution
Insulation
EPC C or above; well-insulated walls, loft
EPC D or below; draughty
Insulate first; BUS still applies to EPC D if planned
Heating system
Underfloor heating; large radiators
Small standard radiators
Upgrade radiators — cost £1,000-£3,000
Space
External wall space; outdoor unit area
No outdoor space (flats)
ASHPs work most homes; GSHPs need garden
Hot water demand
Moderate
Very high (large family)
Heat pump + immersion heater backup
Current fuel
Oil or LPG (no gas)
Gas central heating
Heat pumps vs gas: economics still challenging on standard tariff
Boiler Upgrade Scheme — Step by Step
Step
Action
Who
Notes
1
Get an EPC for your property
You (book at epcregister.com)
Cost £60-£120; needed to prove suitability
2
Get quotes from 3 MCS-certified installers
You
Find via mcscertified.com
3
Choose installer; confirm BUS grant applies
You + installer
Installer must be MCS certified; will apply for grant
4
Installer applies for BUS grant
Installer
Grant is pre-approved before installation
5
Installation completed
Installer
Typically 2-5 days
6
Grant deducted from your invoice
Installer
You pay the net amount only
KAELTRIPTON VERDICT
Air source heat pump fully installed: £8,000-£15,000. After £7,500 BUS grant: £500-£7,500. Well worth it if: your home is EPC C or better; you can switch to an off-peak electricity tariff; you have or plan underfloor heating or large radiators. Less compelling if: on standard electricity tariff; EPC D or below without planned insulation. The grant makes the economics attractive — but insulate your home first for maximum efficiency.
£7,500 BUS Grant — ASHP Net Cost £500-£7,500 — Best in Well-Insulated Homes
Q: How much does a heat pump cost UK 2026?
A: Air source: £8,000-£15,000 installed. Less £7,500 BUS grant = £500-£7,500 net. Ground source: £15,000-£35,000. Grant applies to GSHP too.
Q: Is a heat pump worth it 2026?
A: Yes if: EPC C or above; off-peak electricity tariff available; underfloor heating or large radiators. Less compelling on standard electricity tariff vs gas. Economics improving as electricity prices fall.
Q: What is the Boiler Upgrade Scheme 2026?
A: £7,500 government grant for air or ground source heat pumps. England and Wales only. Use MCS-certified installer who applies on your behalf. Deducted from your invoice.
Q: Heat pump running cost vs gas boiler?
A: Standard tariff: ASHP slightly more expensive than gas (£1,200-1,800 vs £800-1,200). Off-peak tariff (7p/kWh): ASHP significantly cheaper (£400-700 vs £800-1,200).
Data verified April 2026. Rates and prices change frequently — always verify directly with providers and DVLA before acting. This article is for informational purposes only.
The content on Kaeltripton.com is for informational and educational purposes only and does not constitute financial, investment, tax, legal or regulatory advice. Kaeltripton.com is not authorised or regulated by the Financial Conduct Authority (FCA) and is not a financial adviser, mortgage broker, insurance intermediary or investment firm. Nothing on this site should be construed as a personal recommendation. Rates, figures and product details are indicative only, subject to change without notice, and should always be verified directly with the relevant provider, HMRC, the FCA register, the Bank of England, Ofgem or other appropriate authority before any financial decision is made. Past performance is not a reliable indicator of future results. If you require regulated financial advice, please consult a qualified adviser authorised by the FCA.
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Chandraketu Tripathi
Finance Editor · Kaeltripton.com
Chandraketu (CK) Tripathi, founder and lead editor of Kael Tripton. 22 years in finance and marketing across 23 markets. Writes on UK personal finance, tax, mortgages, insurance, energy, and investing. Sources: HMRC, FCA, Ofgem, BoE, ONS.
