Plumber
external coatings
Companies House
Active incorporated business
Trust score
74out of 100
Rating4.9★
Review volumeLow · 19
Source diversity4 sources
VerificationListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
Trust at a glance
1 checkWhat we can verify about external coatings
Each card summarises one evidence dimension from public sources — open it for the full detail and named source. This is evidence context, not a guarantee.
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Applying a new modern no crack waterproof insulation render which when applied is maintanance free.
Reviews · public evidence
What customers say
4.9out of 5
Highlights
"Amazing work by Karl and the team!! Great guy, easy to deal with and just got on with the job! He was that good that my neighbours are now getting their bay window done!! Highly recommended 😊 Communication was great throughout and he explained exactly what he was going to do! Opted for the thermal insulation with the render! Deffo get Karl you won’t be disappointed!"
"Professional service from the start...gave me advice and suggestions on my work required and I was able to speak with the trader at any time...kept me in the loop with the stages of how the job was going to done, and was efficient at all times."
"Excellent efficient service at a reasonable price. Well pleased with the result. I would definitely recommend."
Detailed reviews
Amazing work by Karl and the team!! Great guy, easy to deal with and just got on with the job! He was that good that my neighbours are now getting their bay window done!! Highly recommended 😊 Communication was great throughout and he explained exactly what he was going to do! Opted for the thermal insulation with the render! Deffo get Karl you won’t be disappointed!
Professional service from the start...gave me advice and suggestions on my work required and I was able to speak with the trader at any time...kept me in the loop with the stages of how the job was going to done, and was efficient at all times.
Excellent efficient service at a reasonable price. Well pleased with the result. I would definitely recommend.
Wallpaper stripping, minor replastering, painting High quality of workmanship. Prompt timekeeping. Reasonable charge out. Would use again !
Painting two bedrooms Good price, very competent job. Would use again.
Painting 4 rooms Jon was punctual and did a very satisfactory job within a tight time frame.
Small wall skim Fantastic job! Would highly recommend Keith to anybody.
external and internal plastering/rendering Hack off existing render and apply new waterproof system. The work was to a high standard and exactly what was quoted was completed. The job was finished a day earlier than stated and no extras were charged even though a few additional small jobs where added on. Keith is very knowledgeable of the system used and what it provides to the homeowner, each day a progress report was given and any questions we asked were met with positive attitude. We would highly recommend Keith`s service.
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Local context
Rated 4.9★ — in line with the local average for plumbers in Cardiff
Across 98 rated plumbers in Cardiff, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.
Companies House registration
ActiveActive incorporated business
External Coatings is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.
Legal nameExternal Coatings
Company number11735249
Incorporated
Registered activityPlastering
Official checkListed
Public evidence checks
Public evidence shownTrust checks and red flags
Public review evidence4.9★ from 19 public reviewsCheckatradeCompanies HouseCompanies House OfficersMyBuilder
Sources
4 named sourcesEvery signal, traced to its origin
Review sources
CheckatradeMyBuilder
Official sources
Companies HouseCompanies House Officers
Public evidence checks
What's strong, and what to check yourself
✓Strong signals
✓Rating: 4.9★
✓Source diversity: 4 sources
!Worth checking yourself
!Review volume: Low · 19
!Verification: Listed
Verify at the sourceCheck them yourself
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Common questions about external coatings
What do customers say about external coatings?
external coatings has 19 public reviews, averaging 4.9 out of 5, gathered across 4 independent sources. You can read the individual reviews and where each came from in the reviews section above.
How do I know external coatings's reviews are genuine?
external coatings's 19 public reviews are gathered and cross-checked across 4 independent public sources. Reviews spread across several named sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.
Is external coatings a registered business?
External Coatings is a registered business on Companies House (company number 11735249), incorporated 19 Dec 2018, listed as active. This confirms the legal registration of the business — not evidence of workmanship or service quality.
Smart checks
Before you hire a plumber
Agree 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.
Look for consistent reviews across several named sources, not one polished profile.
Check any verified credentials, and that the business details independently check out.
Want an extra legitimacy check?
Run the Cowboy Checker on external coatings before you contact them.
