Insulation in Swindon
£512 to £7,975 installed, and 39% of homes in the council area rated EPC D to G.
What insulation costs in Swindon
Loft only
£512–£1,221
Saves up to £233 a year. Pays back in about 3 years.
Loft + cavity walls (most common)
£2,014–£4,802
Saves up to £478 a year. Pays back in about 6 years.
Full package
£3,344–£7,975
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.
Swindon in numbers
Published statistics for the Swindon council area, not our estimates.
39% of homes with an EPC in the Swindon council area are rated D to G, and the median energy score is 71, which is band C. Swindon is not named on the published Warm Homes: Local Grant council list (updated July 2026).
| Swindon council area | Figure | Source |
|---|---|---|
| Homes with an EPC rated D to G | 39% | ONS, EPCs lodged to March 2025 |
| Median EPC energy score | 71 (band C) | ONS, EPCs lodged to March 2025 |
| Warm Homes: Local Grant, 2025 to 2028 | Not on the council list | DESNZ, list updated July 2026 |
| Households on mains gas heating only | 78.6% | Census 2021, ONS |
| Electricity network operator | SSEN Distribution (Southern England) | NESO licence area boundaries |
These are published official statistics for the Swindon council area, which covers Swindon, not Home Energy Quotes estimates. Sources checked 6 October 2026.
Is Swindon a good place for insulation?
The area’s housing stock includes a range of properties suited to insulation installations throughout Swindon. Combined with South West’s energy prices, insulation installations here may offer good value (individual results will vary).
Swindon has a population of 183,680, and the area falls within the South West region. We recommend getting at least 3 quotes to compare prices.
Find Installers in Swindon
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 Swindon
- Qualifications — check the installer holds relevant qualifications and certifications for insulation before signing any contract
- Local references — ask for completed jobs in Swindon or Wiltshire
- 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 insulation in Swindon
How much does insulation cost in Swindon?
How energy efficient are homes in Swindon?
Is there a grant for insulation in Swindon?
The Warm Homes: Local Grant may fund insulation and low-carbon heating in Swindon 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 Swindon?
Do I need planning permission in Swindon?
How do I find a good installer in Swindon?
Get quotes for your home in Swindon
Up to three approved installers who cover Swindon may contact you. Free, no obligation.
Swindon on the map
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.