Damp Proofing in Wales
Find verified damp proofing across 15 Welsh towns. Every listing is cross-checked against Companies House and Google Business Profile. We do not verify trade-body membership — ask the business for its number and check it on the issuing body's register. Free to use, no sign-up.
Credentials to look for in a damp specialist
The credentials worth asking a damp specialist about. We do not verify these ourselves — check the number on the issuing body's own register.
Read the rules: Pre-hire checklist, verifying any Welsh tradesperson
Find damp proofing near you
Browse verified damp proofing town by town across 15 Welsh towns.
Common questions
How much does damp proofing cost?
A damp-proof course is typically £300–£1,000 per wall; a survey is £150–£350 (often refunded against the work).
How do I know if it is rising damp?
A proper survey distinguishes rising damp, penetrating damp and condensation, each needs a different fix.
Is there a guarantee?
Reputable firms offer a long-term (often 20-year) insurance-backed guarantee.