A third of your heating escapes through walls and roof.Fix it from £400 — or free if you qualify.
Insulation is the fastest-payback energy upgrade in the UK — loft insulation often pays for itself in under 3 years. Compare free quotes from vetted local installers, with a government grant check included.
- Save up to £400 a year on heating bills
- Free or subsidised for many eligible households
- Accredited installers with proper guarantees
Get your free insulation quotes
6 quick questions · Free grant eligibility check included
From draughty to insulated in three steps
No commitment until you have real quotes — and know what funding you qualify for.
Tell us about your home
Property type, what needs insulating, and your postcode. About 60 seconds.
60 seconds · Free
We match & check funding
We shortlist top-ranked local insulation firms — and flag any grant funding your household may qualify for.
Grant check included
Compare free quotes
Up to 3 written quotes within 48 hours. If you qualify for funding, the price could be zero.
Or an easy “no thanks”
Uninsulated walls waste about a third of your heating.
Every winter, UK homes pay to heat air that leaks straight out through uninsulated lofts and walls. Insulation is unglamorous — and it beats every other energy upgrade on payback. For households on qualifying benefits or in homes with poor EPC ratings, government schemes can cover most or all of the cost.
Accredited installers. Proper guarantees. No botched jobs.
- Botched insulation causes damp — we only match accredited firms with verifiable review history
- Scored on Companies House standing, years trading and reviews
- Grant eligibility checked as part of your free quote
- Maximum 3 firms contact you. Your details are never sold on
Common questions
How much does insulation save?
Loft insulation alone typically saves £200–£400 a year on heating for an average semi, and usually pays for itself within 2–4 years — the fastest payback of any energy upgrade.
Can I get insulation for free?
Possibly. Government-backed schemes fund insulation for households on qualifying benefits or in lower council-tax bands with poor EPC ratings. Your matched installer checks this for you.
What type of insulation do I need?
Pre-1930s homes usually have solid walls; later homes usually have cavities. Lofts should have 270mm+ of insulation. Pick ‘Not sure’ in the quiz and installers will advise on survey.
Is this really free?
Yes — completely free for homeowners, with no obligation to accept any quote. Installers pay us a small fee for introductions, which never affects your price.
How many installers will contact me?
Up to 3, and only firms matched to your postcode and project. Never a flood of cold calls — that’s the whole point of EnergyRanked.
How do you choose the installers?
Every firm must be MCS-certified. We then rank on Companies House standing, years trading, verified review history and workmanship guarantees, and match the top-scoring local firms.
What happens to my details?
They’re shared only with the installers you’re matched to, for the sole purpose of providing quotes. We’re GDPR compliant and you can ask us to delete your data at any time.
Do I have to accept a quote?
No. Compare the quotes in your own time and go ahead only if the numbers make sense for you.
Find out what insulation would save you — and if it could be free
Takes about 60 seconds · Free · No obligation
EnergyRanked is an independent comparison and matching service. We are paid a fee by installers for introductions, which never affects the price you pay. Grant amounts and eligibility are set by government schemes and confirmed by your installer. Savings figures are illustrative and depend on your home, usage and tariff.