The rows
Basement tanking rates: every per m² figure a UK firm publishes
Updated
These are the 3 firms that print a per square metre rate on their own page. The median is £50 per m²; the rest answer with a survey and a quote.
Get basement tanking quotes Two minutes of questions and basement waterproofing contractors covering your area quote you directly. Free, no obligation.
What each provider publishes
Basement Waterproofing Cost Estimator | Tanking & Cavity Drain
Publishes £40 per m² on its own page, read 2026-10-28.
Source: Basement Waterproofing Cost Estimator | Tanking & Cavity Drain
Basement & Cellar Tanking Cost: £50, £150/m² UK Price Guide
Publishes £50 per m² on its own page, read 2026-10-12.
Source: Basement & Cellar Tanking Cost: £50, £150/m² UK Price Guide
Basement Waterproofing Cost Guide | Advanced Damp
Publishes £80 per m² on its own page, read 2026-10-12.