Heat pumps in Watford
£7,045 to £18,356 installed, and 58 Boiler Upgrade Scheme grants already paid in the council area.
What a system costs in Watford
6kW
£7,045–£9,105
Saves up to £207 a year. Pays back in about 3 years after the £7,500 grant (39 years without it).
9kW (most common)
£10,107–£12,924
Saves up to £310 a year. Pays back in about 13 years after the £7,500 grant (37 years without it).
14kW
£13,762–£18,356
Saves up to £408 a year. Pays back in about 21 years after the £7,500 grant (39 years without it).
Source: Home Energy Quotes Cost Index, costs modelled July 2026, savings at the October to December 2026 price cap. Prices are estimates and include installation and VAT. Actual costs may vary.
Watford in numbers
Published statistics for the Watford council area, not our estimates.
58 Boiler Upgrade Scheme heat pump grants were paid in the Watford council area between May 2022 and June 2026. At the 2021 Census, 73.8% of households in the Watford council area used mains gas as their only central heating, 0.1% oil only and 13.9% electricity only. Watford leads a Warm Homes: Local Grant consortium allocated £3,750,031 in principle for April 2025 to March 2028.
| Watford council area | Figure | Source |
|---|---|---|
| Boiler Upgrade Scheme heat pump grants paid | 58 | DESNZ and Ofgem, May 2022 to June 2026 |
| Households on mains gas heating only | 73.8% | Census 2021, ONS |
| Households on oil heating only | 0.1% | Census 2021, ONS |
| Households on renewable heating only | 0.1% | Census 2021, ONS |
| Homes with an EPC rated D to G | 42% | ONS, EPCs lodged to March 2025 |
| Warm Homes: Local Grant, 2025 to 2028 | £3,750,031 to the consortium led by Watford | DESNZ, list updated July 2026 |
| Electricity network operator | UK Power Networks (East England) | NESO licence area boundaries |
Watford is served by UK Power Networks, the electricity network operator for East England. A heat pump has to be registered with the network operator. Your installer normally does this: smaller systems are notified after installation, and larger ones need approval before work starts.
These are published official statistics for the Watford council area, which covers Watford, not Home Energy Quotes estimates. Sources checked 6 October 2026.
Is Watford a good place for heat pumps?
The area’s housing stock includes a range of properties suited to heat pumps installations throughout Watford. Combined with East of England’s energy prices, heat pumps installations here may offer good value (individual results will vary).
Watford has a population of 131,325, and the area falls within the East of England region. We recommend getting at least 3 quotes to compare prices.
Find Installers in Watford
We recommend getting at least 3 quotes from qualified installers before making a decision. Check reviews, ask for local references, and make sure warranties are clearly stated in writing.
What to check before hiring an installer in Watford
- Qualifications — check the installer holds relevant qualifications and certifications for heat pumps before signing any contract
- Local references — ask for completed jobs in Watford or Hertfordshire
- Reviews — check online reviews before committing
- Warranty — product and workmanship warranties should be clearly stated in writing
- 3 quotes minimum — we recommend comparing at least three quotes to ensure you get a fair price
Questions about heat pumps in Watford
How much do heat pumps cost in Watford?
How many heat pump grants have been paid in Watford?
Is there a grant for heat pumps in Watford?
The Boiler Upgrade Scheme offers up to £7,500 towards an air source or ground source heat pump in Watford, or £9,000 until March 2027 for homes heated by oil or LPG with no mains gas. It is open to property owners in England and Wales.
How long is the payback period in Watford?
Do I need planning permission in Watford?
How do I find a good installer in Watford?
Get quotes for your home in Watford
Up to three approved installers who cover Watford may contact you. Free, no obligation.
Watford on the map
Heat Pumps in nearby towns
Last reviewed: . Costs are modelled estimates from the Home Energy Quotes Cost Index — see how we calculate them. Grant rates are checked against GOV.UK.