Plumber
S J Knapman Plastering
Trust score
79out of 100
Rating5.0★
Review volume351
Source diversity1 source
VerificationListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
About
Verified plasterer in Croydon, Surrey.
Reviews · public evidence
What customers say
5.0out of 5
Highlights
"Once again Stuart has completed another bedroom to a very smooth finish. Cant fault his work, always goes above and beyond to provide a quote and confirm a start date which is never a long wait and leaves the room clean and tidy. Would highly recommend"
"Stuart was very helpful and professional. Have recommended to our friends and family."
"Really good communication and gave an honest, no bs quote. Would highly recommend. Turned up when he said he would: can’t get any better than that."
Detailed reviews
Once again Stuart has completed another bedroom to a very smooth finish. Cant fault his work, always goes above and beyond to provide a quote and confirm a start date which is never a long wait and leaves the room clean and tidy. Would highly recommend
Stuart was very helpful and professional. Have recommended to our friends and family.
Really good communication and gave an honest, no bs quote. Would highly recommend. Turned up when he said he would: can’t get any better than that.
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Local context
Rated 5.0★ — in line with the local average for plumbers in Croydon
Across 107 rated plumbers in Croydon, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.
Public evidence checks
Public evidence shownTrust checks and red flags
Public review evidence5.0★ from 351 public reviewsAcross CheckatradeCheckatrade
Sources
1 named sourcesEvery signal, traced to its origin
Review sources
Public evidence checks
What's strong, and what to check yourself
✓Strong signals
✓Rating: 5.0★
✓Review volume: 351
!Worth checking yourself
!Source diversity: 1 source
!Verification: Listed
Verify at the sourceCheck them yourself
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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.
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Run the Cowboy Checker on S J Knapman Plastering before you contact them.