How long is the payback period for home insulation?

A typical home insulation system pays back in approximately 6 years based on estimated average savings of £280 per year. Actual savings depend on your property and energy usage.

Home Insulation

Home Insulation — UK Costs, Grants & Installers (2026)

Q: How much do home insulation cost in the UK?

Home Insulation typically cost between £300 and £2500 installed in the UK in 2026 (estimated). The average homeowner pays around £1400. Actual costs vary depending on property and installer.

Q: Is there a grant for home insulation?

Eligibility for government grants varies by product type. Check the latest requirements before applying.

By Chloe Wainwright, Contributor · Updated April 2026

Quick answer: Home Insulation cost between £300 and £2500 installed in the UK (2026). Estimated annual saving: £280. Estimated payback period: 6 years. Government support: grants may be available for eligible installations.

£1400

Est. installed cost

£280/yr

Est. annual saving

~6 yrs

Est. payback

0.6 t

Est. CO₂ saved/yr

Home Insulation Costs by UK Location (2026)

Prices vary slightly by region. Select your location below for local installer quotes, grant details and a full cost breakdown.

Home Insulation Costs in the UK (2026)

Price range	Typical cost	Est. annual saving	Est. payback
Low	£300	£280/yr	6 yrs
Typical	£1400
High	£2500

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

Frequently Asked Questions

How much do home insulation cost in the UK?

Home Insulation in the UK cost between £300 and £2500 installed. A typical mid-range system costs around £1400 including installation and VAT (estimated, based on our research).

Is there a grant for home insulation in the UK?

There may be government grants or schemes available depending on your property and circumstances. Eligibility criteria may change — always check the latest requirements before proceeding.

How long is the payback period in the UK?

The estimated payback period for home insulation in the UK is around 6 years, based on estimated annual savings of around £280. Actual payback depends on your property type, current insulation level and heating system.

Do I need planning permission for home insulation?

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 from your local council. Always check with your local planning authority before installation.

How do I find a good installer in the UK?

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.

Home Insulation Costs by UK Location (2026)

Home Insulation Costs in the UK (2026)

Available Grants for Home Insulation (2026)

Frequently Asked Questions