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Compare Home Insulation Quotes in the UK

Compare quotes for loft, cavity-wall, solid-wall and floor insulation. The right measure depends on how your property was built, its condition, ventilation and damp risks—not simply the lowest headline price.

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Typical UK costs

Energy Saving Trust currently gives typical figures of about £2,200 for cavity-wall insulation, £12,000–£18,000 for solid-wall insulation and £1,400–£2,500 for a typical suspended-floor installation. Loft costs vary by area, access and existing depth.

Prices are indicative, not a quotation. A survey and written scope are needed for an accurate price.

Options to compare

  • Loft or roof insulation
  • Cavity-wall insulation
  • Internal or external solid-wall insulation
  • Suspended timber or solid-floor insulation
  • Room-in-roof and targeted draught-proofing

What affects the price?

  • Property size, construction and exposed area
  • Existing insulation and access
  • Damp, ventilation or remedial work
  • Material, thickness and thermal target
  • Scaffolding, finishes and redecoration

What should be included in the quote?

  • Survey findings and suitability
  • Material, thickness and declared performance
  • Ventilation, moisture and fire provisions
  • Making good, scaffolding and waste removal
  • Guarantee, certification and grant assumptions

Installer checks

Ask for the surveyor’s reasoning and evidence of insurance and relevant competence. For grant-funded work, verify scheme and TrustMark requirements. Do not proceed with cavity or solid-wall insulation until damp and ventilation risks have been assessed.

Timelines and warranties

Straightforward loft or cavity work may take half a day to two days. Internal or external wall insulation can take days or weeks and may be disruptive. Check product and workmanship guarantees and responsibility for ventilation and making good.

How Get Free Quote works

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  2. Review suitable options. We research relevant providers and help organise comparable information.
  3. Compare written quotations. Check price, scope, credentials, exclusions, timescale and warranty.
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Useful guidance

Energy Saving Trust insulation guidance

Frequently asked questions

Which insulation should come first?

That depends on construction and what is already installed. Accessible loft insulation is often practical, but a whole-home assessment helps avoid moisture and ventilation problems.

Can insulation cause damp?

Poor design or installation can worsen condensation. A competent survey should identify damp, ventilation needs and cold bridges.

Are grants available?

Schemes vary by nation and household. Check current government guidance and do not rely on funding until eligibility is confirmed.

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