“Reliable, always on time, knowledgeable and did a perfect job.” · Checkatrade
“Fantastic job done by John and Ryan.” · Checkatrade
“He doesn't charge the earth for a very professional job.” · Checkatrade
Public evidence profile · Checked March 2026
D & J Damproofing
Trust Score
60out of 100
- Rated 5.0 from 446 reviews
How this score is worked out
Rating5.0 / 5
Review volume446
Independent sources1 independent public source
CredentialsNo credentials shown yet
How this score is made up
What customers say51.6 of 60
Independent checks7 of 30
Track record1.3 of 10
See the independent checks
- Licences and credentials0 of 8.3
- Ways to reach them7 of 8.3
- Reviewed on more than one site0 of 6.2
- Registered company details0 of 4.1
- Photos of their work0 of 2.1
- Industry recognition0 of 1
Missing evidence lowers the score because we can't check it. It doesn't mean it doesn't exist. Claiming a profile never changes the score. Evidence context, not a guarantee of workmanship.
From customer reviews
What customers consistently say
Recurring themes from 3 customer reviews on Checkatrade.
Respectful and tidy in your home: “They treat your home as if it's your own and take all measures to keep your home as clean and protected as can be with what is naturally a messy job.” · Checkatrade
“Reliable, always on time, knowledgeable and did a perfect job.” · Checkatrade
“They arrived when they said they would and got straight on with the job.” · Checkatrade
“They gave advice as well as doing an amazing job.” · Checkatrade
“He also gave me advice on how to minimise damp in the future.” · Checkatrade
Reviews · public evidence
What customers say
These review totals are published independently on the named public source below, not testimonials this business chose to show. We show the aggregate rating, review volume, and source attribution we hold so you can weigh the evidence yourself.
5.0out of 5
How Checkatrade customers rate them (out of 5)
Reliability5.0
Communication5.0
Quality of work5.0
Where these reviews are published
- Checkatrade446 reviews · 5.0 avg
Local context
Rated 5.0, in line with the local average for plumbers in Sunderland
Across 23 plumbers in Sunderland, the typical rating is 5.0 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
Sources
1 named public sourceWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Public evidence last checked March 2026
About
Damp proofer in Sunderland, Tyne and Wear.
Services they list
Condensation ControlDamp InvestigationDamp SurveyDry Rot TreatmentMould ControlPenetrating Damp TreatmentRising DampStructural Water ProofingTimber TreatmentWoodworm Treatment
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
SunderlandTyne and Wear
The areas they list covering on a public directory; confirm they cover your address before you book.
Your own checks
What to check before you hire
Worth checking yourself
Their public evidence comes from a single source. Look them up on another site before deciding.
No credentials are shown here and the business has not claimed this profile. Ask to see certificates and insurance directly.
Verify at the sourceCheck them yourself
Approved plumbers on the free WaterSafe register are vetted, qualified to the water regulations and insured. Check they're listed, or find a WaterSafe-approved plumber near you.
Check the WaterSafe registerAgree the call-out fee, the hourly or fixed rate, and whether parts are charged on top, in writing, before an emergency plumber starts. Out-of-hours overcharging and 'while I'm here' add-ons are common complaints.
Be wary of a plumber who, on a first visit, says your whole system or boiler must be replaced. Get a second opinion and an itemised quote (parts and labour separately) before agreeing to major work.
Gas and boiler work is a separate, regulated trade, not general plumbing. Make sure anyone working on a gas appliance is specifically registered to do gas work, and ask to see that registration before they start.
Want an extra legitimacy check? Run the Cowboy Checker on D & J Damproofing before you contact them.
Run Cowboy Checker →Good to know
Common questions about D & J Damproofing
Is D & J Damproofing a legitimate business?
D & J Damproofing has 446 independent public reviews, rated 5 out of 5. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about D & J Damproofing?
D & J Damproofing has 446 public reviews, averaging 5 out of 5. The reviews section shows the aggregate rating, review volume, and review source information we hold.
How is D & J Damproofing rated on reliability and quality?
On Checkatrade, customers rate D & J Damproofing by category: Reliability 5.0 out of 5, Communication 5.0 out of 5, Quality of work 5.0 out of 5. These are per-category scores from real published reviews. They show where D & J Damproofing is strongest, not just the overall average.
How do I know D & J Damproofing's reviews are genuine?
D & J Damproofing's 446 public reviews come from a named public review source. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show the review source information and aggregate rating we hold rather than selling rankings, so you can weigh the evidence for yourself.
What does D & J Damproofing specialise in?
D & J Damproofing lists specialist services including Condensation Control, Damp Investigation, Damp Survey, Dry Rot Treatment, Mould Control, Penetrating Damp Treatment. If your job is one of these, look for it in their listed services or ask them to confirm for your project.