Home insulation in St Helens
£463 to £7,215 installed, and 48% of homes in the council area rated EPC D to G.
What insulation costs in St Helens
Loft only
£463–£1,105
Saves up to £233 a year. Pays back in about 3 years.
Loft + cavity walls (most common)
£1,822–£4,345
Saves up to £478 a year. Pays back in about 6 years.
Full package
£3,026–£7,215
Saves up to £546 a year. Pays back in about 9 years.
Source: Home Energy Quotes Cost Index, costs modelled September 2026, savings at the October to December 2026 price cap. Prices are estimates and include installation and VAT. Actual costs may vary.
St Helens in numbers
Published statistics for the St. Helens council area, not our estimates.
48% of homes with an EPC in the St. Helens council area are rated D to G, and the median energy score is 69, which is band C. The council is part of a Warm Homes: Local Grant consortium led by Liverpool City Region Combined Authority, allocated £31,805,813 in principle across the consortium for April 2025 to March 2028.
| St. Helens council area | Figure | Source |
|---|---|---|
| Homes with an EPC rated D to G | 48% | ONS, EPCs lodged to March 2025 |
| Median EPC energy score | 69 (band C) | ONS, EPCs lodged to March 2025 |
| Warm Homes: Local Grant, 2025 to 2028 | £31,805,813 to the consortium led by Liverpool City Region Combined Authority | DESNZ, list updated July 2026 |
| Households on mains gas heating only | 84.9% | Census 2021, ONS |
| Electricity network operator | SP Energy Networks (North Wales, Merseyside and Cheshire) | NESO licence area boundaries |
These are published official statistics for the St. Helens council area, which covers St Helens, not Home Energy Quotes estimates. Sources checked 6 October 2026.
Is St Helens a good place for home insulation?
The area’s housing stock includes a range of properties suited to home insulation installations throughout St Helens. Combined with North West’s energy prices, home insulation installations here may offer good value (individual results will vary).
St Helens has a population of 102,000, and the area falls within the North West region. We recommend getting at least 3 quotes to compare prices.
Find Installers in St Helens
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 St Helens
- Qualifications — check the installer holds relevant qualifications and certifications for home insulation before signing any contract
- Local references — ask for completed jobs in St Helens or Merseyside
- 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 home insulation in St Helens
How much does home insulation cost in St Helens?
How energy efficient are homes in St Helens?
Is there a grant for home insulation in St Helens?
The Warm Homes: Local Grant may fund insulation and low-carbon heating in St Helens for homes in England with an EPC rating of D to G, where household income is usually £36,000 or less or someone receives certain benefits.
How long is the payback period in St Helens?
Do I need planning permission in St Helens?
How do I find a good installer in St Helens?
Get quotes for your home in St Helens
Up to three approved installers who cover St Helens may contact you. Free, no obligation.
St Helens on the map
Home Insulation 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.