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Home Insulation

Home Insulation in Exeter — 2026 Guide

By Laura Pickering, Contributor · Updated April 2026 · Exeter, Devon

Home Insulation hero image
Quick answer: Home Insulation in Exeter cost between £540 and £3580 installed (2026 prices). The average homeowner may save an estimated £380 per year on energy bills. Government support: grants may be available for eligible installations.
£1550
Est. installed cost
£380/yr
Est. annual saving
~6 yrs
Est. payback
1708 hrs
Sunshine hours

Is Exeter a Good Place for Home Insulation?

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

Exeter has a population of 130,000, and the area falls within the South West region. We recommend getting at least 3 quotes to compare prices.

Exeter

Home Insulation Costs in Exeter (2026)

System size Typical cost Est. annual saving Est. payback
Loft only £320–£880 £210/yr 7 yrs
Loft + cavity walls (most common) £830–£2150 £410/yr 6 yrs
Full package £2100–£4550 £650/yr 5 yrs

Source: Green Reach Energy research, March 2026. Prices are estimates and include installation and VAT. Actual costs may vary.

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Available Grants in Exeter

A government energy efficiency grant is available for eligible installations.

Home Insulation grants in Exeter

Find Installers in Exeter

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 Exeter

  • Qualifications — check the installer holds relevant qualifications and certifications for home insulation before signing any contract
  • Local references — ask for completed jobs in Exeter or Devon
  • 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
Home Insulation installer in Exeter

Frequently Asked Questions

How much do home insulation cost in Exeter?
Home Insulation in Exeter cost between £540 and £3580 installed. A typical mid-range system costs around £1550 including installation and VAT (estimated, based on our research).
Is there a grant for home insulation in Exeter?
Yes. The government energy efficiency grant (amounts vary by eligibility) is available for eligible installations. Use a qualified installer to claim it.
How long is the payback period in Exeter?
The estimated payback period in Exeter is around 6 years, based on estimated annual savings of around £380. Actual payback depends on your property type, current insulation level and heating system.
Do I need planning permission in Exeter?
Most home insulation 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 Exeter before installation.
How do I find a good installer in Exeter?
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.