Estiquote: Renovation Costs

What should your extension, loft, kitchen or bathroom really cost? Estiquote gives you a UK price range in under a minute: the building work a builder would quote, plus the design fees and contingency to budget for, so you can walk into builder quotes knowing what the work typically costs. Priced for 2026 from published UK price guides, council building control fees and trade rates, then adjusted for your region from your postcode. The free calculator at estiquote.co.uk uses the same 2026 price data, though some regional fees, such as those in Scotland, Wales and Northern Ireland, are more detailed on the website for now. WHAT YOU CAN PRICE • House extensions: single-storey, double-storey, wraparound and side return • Loft conversions: rooflight, dormer, hip-to-gable and mansard • Kitchens: small, medium and large • Bathrooms: refit, en-suite, wet room and downstairs toilet • New homes,…