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.

• Boiler Upgrade Scheme Eligibility 2026 — Does Your Home Qualify?

  Check every BUS grant eligibility rule for 2026 — property type, tenure, EPC changes, listed buildings, park homes and more. Find out if your home qualifies.

• Can You Combine the BUS Grant with Other Government Schemes?

  Find out which UK government schemes you can stack with the £7,500 BUS grant in 2026 and which ones you can't. You could save thousands more.

• Heat Pump Grants for New Builds: What Financial Support Is Available in the UK?

  The £7,500 BUS grant doesn't cover new builds. So what financial support CAN you get for a heat pump in a new home? Here's what's actually available in 2026.

• Boiler Upgrade Scheme Overhaul April 2026: Air-to-Air Heat Pumps, £9,000 Grants and No EPC Required

  The Boiler Upgrade Scheme changed drastically on 28 April 2026. Find out who gets £9,000, why air-to-air heat pumps now qualify, and what no EPC means for you.

Heat pump questions in Hertfordshire

How many heat pump installers are there in Hertfordshire?

53 MCS-certified firms have a business address in Hertfordshire, 45 of them registered for the Boiler Upgrade Scheme. They cluster in Watford (7), St Albans (5), Hertford (4) and Hemel Hempstead (3). MCS certification is a condition of listing here, and it's what every UK grant scheme requires.

Can I get the Boiler Upgrade Scheme grant in Hertfordshire?

Yes. Hertfordshire is in England, where the Boiler Upgrade Scheme gives £7,500 off an air-to-water or ground source heat pump (£2,500 off air-to-air, £5,000 off biomass). Your MCS-certified installer applies and deducts it from the quote, so you never handle the money. Homes off the gas grid heated by oil or LPG get £9,000 between 21 July 2026 and 31 March 2027. Lower-income households in England may qualify for the fully funded Warm Homes: Local Grant through their council instead.

What types of heat pump do installers in Hertfordshire fit?

Every installer in Hertfordshire fits air source heat pumps, and 4 also install exhaust air systems. Air source suits most existing homes; ask about the alternatives if you have the outside space or an unusual property.

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 328. Get two or three quotes, check the BUS badge if the grant matters, and ask each firm for a heat-loss survey before they price the job.

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?

Yes — most firms travel 25 to 50 miles, so installers in Greater London, Essex, Cambridgeshire and Bedfordshire will often quote in Hertfordshire too. Distance mainly affects survey availability and aftercare response, so ask where their engineers are based.

Neighbouring counties

Most installers travel 25 to 50 miles, so firms next door will often quote too.

• Greater London114
• Essex72
• Cambridgeshire49
• Bedfordshire12
• Buckinghamshire31