UK insulation calculator

Home Insulation Cost Calculator

Estimate loft quilt or cavity wall insulation using current UK benchmarks and postcode-aware regional pricing.

Insulation type

Property type

Postcode (optional)Enter a postcode to set the cost region automatically.

Cost region

Estimated insulation budget

£652 – £1,019

Typical planning estimate £815. Suitability surveys, damp remedial work and unusual access can add cost.

Benchmarks: Checkatrade 2026 loft and cavity wall insulation guides. Regional weighting is a UK Home Costs modelling assumption. See sources →