Damp Proofing
& Waterproofing
Rising damp treatment, chemical DPC injection, basement waterproofing and condensation control across London. CSSW qualified surveyors. 20-year insurance-backed guarantee.
Our Damp Proofing & Waterproofing Services
Rising Damp
Chemical DPC injection to stop moisture rising through masonry walls. From £500.
Penetrating Damp
External waterproofing, pointing repair and membrane installation. From £300.
Basement Damp
Cavity drain membrane or tanking systems for below-ground spaces. From £80/m².
Condensation
Ventilation systems, insulation upgrades and anti-mould treatment. From £200.
Wall Tie Failure
Replacement of corroded cavity wall ties with stainless steel. From £800.
Subfloor Damp
Air-brick installation, sub-floor ventilation fans and membrane. From £400.
How It Works
CSSW Damp Survey
Certified damp survey with moisture mapping and salt analysis.
Diagnosis & Specification
Written report with treatment specification and costs.
Preparatory Works
Removal of affected plaster, skirting and fittings as required.
Damp Treatment
Chemical DPC injection, membrane installation or tanking applied.
Reinstatement & Plastering
Salt-resistant render, re-plastering and decoration.
What Our Clients Say
“Had rising damp in three walls of our Victorian terrace. SuperBuilder treated and re-plastered everything beautifully — two years on, not a trace of damp. Excellent work.”
Fiona R.Brixton · Rising Damp Treatment“SuperBuilder waterproofed our basement using a cavity drain system. They transformed a wet, unusable space into a dry room. Professional and tidy throughout.”
Bertrand L.Belgravia · Basement Waterproofing“The surveyor was honest — he told us the damp was condensation, not rising damp, and recommended ventilation rather than expensive treatment. Refreshing integrity.”
Sandra H.Peckham · Damp Survey
Frequently Asked Questions
Damp Problems? We Can Help.
A free survey with one of our CSSW-qualified surveyors is the first step. Honest diagnosis, fair prices and a 20-year insurance-backed guarantee.