Heat Pump Installers in Hertfordshire

Towns in Hertfordshire

Where the installers in Hertfordshire are based. Towns with three or more firms have their own page.

• Watford7
• St Albans5
• Hertford4
• Hemel Hempstead3
• Potters Bar3

Heat pump guides for Hertfordshire

What a heat pump costs, which grant applies and how to compare quotes, from the directory's own guides.

• Do You Need an MCS Installer to Claim a Heat Pump Grant?

  Find out whether MCS certification is required to claim the £7,500 BUS grant and other UK heat pump grants, and what you risk by using a non-MCS installer.

• Can You Get a Heat Pump Grant If You Receive Benefits?

  On benefits and wondering if you qualify for a heat pump grant? You're likely eligible for more than just ECO4. Here's every scheme mapped to your benefit type.

• Heat Pump Subsidies Could Be Cut to Fund Defence Spending

  Reports suggest heat pump grants could be cut to fund defence. Here's what UK homeowners should do right now to lock in the £7,500 BUS grant before any changes.

• Heat Pump Grants in Scotland 2026 — Home Energy Scotland

  Scottish homeowners can stack Home Energy Scotland loans and cashback with the £7,500 BUS grant. Here's exactly how much you can get and how to apply in 2026.

Heat pump questions in Hertfordshire

How many heat pump installers are there in Hertfordshire?

53 installer listings have a business address in Hertfordshire; 45 are recorded as registered for the Boiler Upgrade Scheme. They cluster in Watford (7), St Albans (5), Hertford (4) and Hemel Hempstead (3). Check each firm's current MCS and Ofgem status before relying on a grant.

Can I get the Boiler Upgrade Scheme grant in Hertfordshire?

Yes. Hertfordshire is in England, where eligible properties can receive £7,500 for an air-to-water or ground-source heat pump (£2,500 for air-to-air; £5,000 for biomass). An MCS-certified, Ofgem-registered installer applies and deducts an approved grant from the quote. The £9,000 uplift from 21 July 2026 to 31 March 2027 is only for eligible off-gas-grid homes replacing oil or LPG with air-to-water or ground-source heat pumps. Lower-income households in England may also qualify for the council-run Warm Homes: Local Grant, subject to its separate rules.

What types of heat pump do installers in Hertfordshire fit?

All records in Hertfordshire list air source; 4 also list exhaust air. Ask each firm to confirm its current technology scope and whether a system suits your home.

How do I choose between heat pump installers in Hertfordshire?

44 of the 53 have Google reviews shown on their listing; TSG Building Services Plc has the most with 331. 2 have claimed ownership of their listing. Ask firms if they serve your postcode, check current certification and BUS registration, and compare itemised quotes after a heat-loss survey.

Do I need an EPC to get a heat pump grant in Hertfordshire?

Not any more. Since 28 April 2026 a valid EPC is no longer required to apply for the Boiler Upgrade Scheme. If your home doesn't have one, your installer instead supplies a utility bill or fuel receipt dated within the last three months plus photographs of the existing heating system. (The council-run Warm Homes: Local Grant in England still uses the EPC — it's for homes rated D to G.)

Can installers from outside Hertfordshire do my install?

Some installers based in Greater London, Essex, Cambridgeshire and Bedfordshire may serve Hertfordshire. Business address does not establish service coverage, so ask each firm whether it surveys and supports homes in your postcode.

Neighbouring counties

Firms based nearby may cover your postcode; ask each one about surveys and aftercare.

• Greater London114
• Essex72
• Cambridgeshire49
• Bedfordshire12
• Buckinghamshire31