Home insulation in Cambridge
£517 to £8,051 installed, and 34% of homes in the council area rated EPC D to G.
What insulation costs in Cambridge
Loft only
£517–£1,232
Saves up to £233 a year. Pays back in about 3 years.
Loft + cavity walls (most common)
£2,033–£4,847
Saves up to £478 a year. Pays back in about 7 years.
Full package
£3,376–£8,051
Saves up to £546 a year. Pays back in about 10 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.
Cambridge in numbers
Published statistics for the Cambridge council area, not our estimates.
34% of homes with an EPC in the Cambridge council area are rated D to G, and the median energy score is 73, which is band C. Cambridge leads a Warm Homes: Local Grant consortium allocated £8,805,153 in principle for April 2025 to March 2028.
| Cambridge council area | Figure | Source |
|---|---|---|
| Homes with an EPC rated D to G | 34% | ONS, EPCs lodged to March 2025 |
| Median EPC energy score | 73 (band C) | ONS, EPCs lodged to March 2025 |
| Warm Homes: Local Grant, 2025 to 2028 | £8,805,153 to the consortium led by Cambridge | DESNZ, list updated July 2026 |
| Households on mains gas heating only | 75.1% | Census 2021, ONS |
| Electricity network operator | UK Power Networks (East England) | NESO licence area boundaries |
These are published official statistics for the Cambridge council area, which covers Cambridge, not Home Energy Quotes estimates. Sources checked 6 October 2026.
Is Cambridge a good place for home insulation?
The area’s housing stock includes a range of properties suited to home insulation installations throughout Cambridge. Combined with East England’s energy prices, home insulation installations here may offer good value (individual results will vary).
Cambridge has a population of 123,000, and the area falls within the East England region. We recommend getting at least 3 quotes to compare prices.
Find Installers in Cambridge
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 Cambridge
- Qualifications — check the installer holds relevant qualifications and certifications for home insulation before signing any contract
- Local references — ask for completed jobs in Cambridge or Cambridgeshire
- 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 Cambridge
How much does home insulation cost in Cambridge?
How energy efficient are homes in Cambridge?
Is there a grant for home insulation in Cambridge?
The Warm Homes: Local Grant may fund insulation and low-carbon heating in Cambridge 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 Cambridge?
Do I need planning permission in Cambridge?
How do I find a good installer in Cambridge?
Get quotes for your home in Cambridge
Up to three approved installers who cover Cambridge may contact you. Free, no obligation.
Cambridge 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.