How do I choose a trustworthy damp proofing / waterproofing?

Compare the public evidence on each profile — how many independent reviews they have and across how many named platforms, the rating and how recent it is, any verified credentials, and the company record. A damp proofing / waterproofing backed by several named sources is harder to fake than one with a single listing.

Does MyTrustedTraders rank or recommend damp proofing / waterproofing for payment?

No. There are no ads and no paid placement. Damp proofing / waterproofing are ranked only by the strength of independent public evidence — no one can pay to rank higher, add a badge, or change their reviews.

Where do the reviews come from?

They're imported from named public review platforms and always shown with the source named — they aren't reviews written on MyTrustedTraders. We cross-check the same business across sources rather than creating new reviews.

What should I check before hiring a damp proofing / waterproofing?

Confirm credentials and insurance directly with the damp proofing / waterproofing, get a written quote, and run the Cowboy Checker on the business first. MyTrustedTraders helps you shortlist on the evidence — it doesn't replace your own checks before you hire.

Damp proofing / waterproofing in the United Kingdom

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Find damp proofing / waterproofing across the United Kingdom, each compared on their reviews, verified credentials and named-source evidence across sources — independent evidence, no ads, no paid placement. Add your area below to see who's near you.

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What to check when hiring damp proofing / waterproofing in the United Kingdom

MyTrustedTraders ranks on independent public evidence — no ads, no paid placement. Use these checks alongside the evidence on each profile before you decide who to contact.

Look for consistent reviews across several named platforms, not one polished profile.
Check any verified credentials, and that the business details independently check out.
Get a written quote and keep guarantee, insurance and payment terms in writing.
Run the Cowboy Checker before you commit to anyone.

Which credentials should a damp proofing / waterproofing have? See the guide →

How to judge a damp proofing / waterproofing

Independent, no-ads guidance — the trade-specific checks that matter most, the warning signs, and what to ask before you hire. Use it alongside each trader’s public evidence above.

Verify before you hire

Check the contractor is a member of the Property Care Association (PCA) — the main vetted trade body for damp specialists in the UK.
Ask whether the surveyor holds a CSDB or CSSW qualification — these are the recognised professional credentials, not a short sales course.
Confirm any guarantee is backed by an Insurance Backed Guarantee (IBG) from a named insurer, so it remains valid if the company folds.
If your home was built before 1919 or is in a conservation area, check the contractor has experience with heritage-compatible methods.

Warning signs of a cowboy

The company surveying the damp is the same company selling you the treatment — a direct financial incentive to over-diagnose.
No written diagnosis report explaining the actual cause, just a quote for chemical injection or replastering.
A long guarantee (20–30 years) offered without any mention of an underwritten insurance policy behind it.
A recently registered company offering decades-long guarantees — check their Companies House incorporation date.

Questions to ask before you hire

Are you PCA-accredited, and does the surveyor hold a CSDB or CSSW qualification?
Will you give me a written report naming the cause of the damp before any work starts?
Is the guarantee backed by an insurance policy from a named, FCA-authorised insurer?
Could this be condensation rather than rising damp — and how will you rule that out?

Frequently asked questions

How do I choose a trustworthy damp proofing / waterproofing?: Compare the public evidence on each profile — how many independent reviews they have and across how many named platforms, the rating and how recent it is, any verified credentials, and the company record. A damp proofing / waterproofing backed by several named sources is harder to fake than one with a single listing.
Does MyTrustedTraders rank or recommend damp proofing / waterproofing for payment?: No. There are no ads and no paid placement. Damp proofing / waterproofing are ranked only by the strength of independent public evidence — no one can pay to rank higher, add a badge, or change their reviews.
Where do the reviews come from?: They're imported from named public review platforms and always shown with the source named — they aren't reviews written on MyTrustedTraders. We cross-check the same business across sources rather than creating new reviews.
What should I check before hiring a damp proofing / waterproofing?: Confirm credentials and insurance directly with the damp proofing / waterproofing, get a written quote, and run the Cowboy Checker on the business first. MyTrustedTraders helps you shortlist on the evidence — it doesn't replace your own checks before you hire.

More ways to check who to trust

Free, independent checks — no ads, no paid placement.

Trade Credential Guide
Which official register to check for each trade — and how to verify it.
Cowboy Checker
Spot the warning signs of a rogue trader before you hire.
Council Experience
Which architects and agents know your local council.
Planning Approval Rate
How often a firm's planning applications get approved.
Planning Finder
Planning applications and the architects behind them, by postcode.

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