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Boilers in Bath

£1,550 to £5,010 installed, and 50% of homes in the council area rated EPC D to G.

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By Home Energy Quotes · Updated September 2026 · Bath, Somerset

Boilers in Bath

What a new boiler costs in Bath

24–30kW combi

£1,550–£2,330

Saves up to £149 a year. Pays back in about 13 years.

35–40kW system (most common)

£2,490–£3,520

Saves up to £226 a year. Pays back in about 13 years.

40kW+ heat-only

£3,830–£5,010

Saves up to £303 a year. Pays back in about 15 years.

Source: Home Energy Quotes Cost Index, costs modelled March 2026, savings at the October to December 2026 price cap. Prices are estimates and include installation and VAT. Actual costs may vary.

Bath in numbers

Published statistics for the Bath and North East Somerset council area, not our estimates.

At the 2021 Census, 74.3% of households in the Bath and North East Somerset council area used mains gas as their only central heating, 3.7% oil only and 9.3% electricity only. 50% of homes with an EPC in the Bath and North East Somerset council area are rated D to G, and the median energy score is 68, which is band D.

Bath and North East Somerset council areaFigureSource
Households on mains gas heating only74.3%Census 2021, ONS
Households on oil heating only3.7%Census 2021, ONS
Households on electric heating only9.3%Census 2021, ONS
Homes with an EPC rated D to G50%ONS, EPCs lodged to March 2025
Median EPC energy score68 (band D)ONS, EPCs lodged to March 2025
Electricity network operatorNational Grid Electricity Distribution (South West England)NESO licence area boundaries

These are published official statistics for the Bath and North East Somerset council area, which covers Bath, not Home Energy Quotes estimates. Sources checked 6 October 2026.

Grants and funding in Bath

No general boiler grant

There is no general government grant for a like-for-like gas or oil boiler replacement in Bath, and the Warm Homes: Local Grant cannot fund new gas boilers. If you switch to a heat pump instead, the Boiler Upgrade Scheme offers up to £7,500.

Source: GOV.UK — Boiler Upgrade Scheme

Standard VAT

Boilers are not on HMRC's list of energy-saving materials, so 20% VAT applies and is inside the prices above.

Source: HMRC — VAT Notice 708/6

Warm Homes: Local Grant

The council is part of a Warm Homes: Local Grant consortium led by Bristol, City of, allocated £12,662,001 in principle across the consortium for April 2025 to March 2028. Income and EPC rules apply.

Source: DESNZ, list updated July 2026

Is Bath a good place for boilers?

The area’s housing stock includes a range of properties suited to boilers installations throughout Bath. Combined with South West’s energy prices, boilers installations here may offer good value (individual results will vary).

Bath has a population of 88,000, and the area falls within the South West region. We recommend getting at least 3 quotes to compare prices.

Bath

Find Installers in Bath

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.

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What to check before hiring an installer in Bath

  • Qualifications — check the installer holds relevant qualifications and certifications for boilers before signing any contract
  • Local references — ask for completed jobs in Bath or Somerset
  • 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
Boilers installer in Bath

Questions about boilers in Bath

How much do boilers cost in Bath?
Boilers in Bath cost between £1,550 and £5,010 installed, depending on system size. A typical mid-range system costs around £2,950 including installation and VAT (modelled estimate).
How are homes in Bath heated?
At the 2021 Census, 74.3% of households in the Bath and North East Somerset council area, which covers Bath, used mains gas as their only central heating, 3.7% oil only and 9.3% electricity only.
Is there a grant for boilers in Bath?
There is no general government grant for a like-for-like gas or oil boiler replacement in Bath, and the Warm Homes: Local Grant cannot fund new gas boilers. If you switch to a heat pump instead, the Boiler Upgrade Scheme offers up to £7,500.
How long is the payback period in Bath?
The estimated payback period in Bath is typically around 15 years, based on estimated savings of up to £202 a year for a typical home. Actual payback depends on your property size, boiler efficiency and gas tariff.
Do I need planning permission in Bath?
Most boilers installations fall under permitted development rights and do not require planning permission. However, listed buildings, conservation areas and flats may need approval. Always check with your local planning authority in Bath before installation.
How do I find a good installer in Bath?
We recommend getting at least 3 quotes from qualified installers. Check online reviews and verify that the installer holds relevant qualifications before signing any contract.

Get quotes for your home in Bath

Up to three approved installers who cover Bath may contact you. Free, no obligation.

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Bath on the map

Map of Bath, Somerset
Bath, Somerset and the surrounding area.

Boilers 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.