- Source reference
- CBDU623187
- Licence class
- upper-tier
- Valid through
- Feb 2029
- Source checked
- 30 Jun 2026
Public evidence profile
Piotr Korczynski
Credentials & registries
Waste carrier (Environment Agency)
Trust Score
36out of 100
- Rated 5.0 from 13 reviews
- 1 credential shown
How this score is worked out
Rating5.0 / 5
Review volumeLow · 13
Independent sources1 independent public source
Credentials1 credential shown
How this score is made up
What customers say26.4 of 60
Independent checks4.1 of 30
Track record5 of 10
See the independent checks
- Licences and credentials1.2 of 10.3
- Ways to reach them2.9 of 3.4
- Reviewed on more than one site0 of 5.1
- Registered company details0 of 5.1
- Photos of their work0 of 4.3
- Industry recognition0 of 1.7
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.
Trust at a glance
1 checkWhat we can verify about Piotr Korczynski
Each card sums up one thing we can check from public sources. Open it for the full detail and the named source. This is evidence context, not a guarantee.
See the full verification checklist for Piotr Korczynski →Credentials and associations
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
Reviews · public evidence
What customers say
These reviews are published independently on the named public source below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
5.0out of 5
Based on the 3 reviews with a star rating
5 stars3
4 stars0
3 stars0
2 stars0
1 star0
Where these reviews are published
- Checkatrade13 reviews · 5.0 avg
Highlights
“Great service ***** Peter responded for my job request within 5 min and was able to visit me next day to see the work which needs to be done, if any parts missing needs to be purchased etc. He arrived on time, finished work perfectly with attention to details, in clean & organised way. He has great communication skills & knowledge, highlights potential issues which might pop out during the changing the basin tap mixer as our previous was very old not easy to remove. Luckily all was fine and he finished job with a great result. I would love Peter to do my full bathroom renovation/ extension.”
“Piotr was fantastic from start to finish. Started on time. Work completed in under two days. Priced reasonably. Left the job tidier than when he arrived. I have used Piotr previously to refurbish an old garage. Nice guy too.”
“Piotr was friendly, organised and worked efficiently and quickly. He did a good job and I was very happy with the work.”
Detailed reviews
Great service ***** Peter responded for my job request within 5 min and was able to visit me next day to see the work which needs to be done, if any parts missing needs to be purchased etc. He arrived on time, finished work perfectly with attention to details, in clean & organised way. He has great communication skills & knowledge, highlights potential issues which might pop out during the changing the basin tap mixer as our previous was very old not easy to remove. Luckily all was fine and he finished job with a great result. I would love Peter to do my full bathroom renovation/ extension.
Piotr was fantastic from start to finish. Started on time. Work completed in under two days. Priced reasonably. Left the job tidier than when he arrived. I have used Piotr previously to refurbish an old garage. Nice guy too.
Piotr was friendly, organised and worked efficiently and quickly. He did a good job and I was very happy with the work.
Local context
Rated 5.0, above the local average for builders in Northolt
Across 21 builders in Northolt, the typical rating is 4.8 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
Sources
2 named public sourcesWhere 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
Registers and membership directories
Check dates vary by source. Where we hold a date, the check shows it.
About
Builder in Northolt, Greater London.
Services they list
Agricultural BuildingBasement / Cellar ConversionsBrick / Concrete Structural RepairsCar PortsCladdingConcrete GaragesConcretingCore DrillingDemolitionDiamond DrillingExtensions / ConversionsFire and Flood Renovation
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
Greater LondonNortholt
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
Only a few public reviews are shown. Ask for recent references you can contact.
Their public evidence comes from a single source. Look them up on another site before deciding.
Verify at the sourceCheck them yourself
This trade isn't licensed in the UK, so anyone can set up. TrustMark is the only Government-endorsed quality scheme for work in and around the home - check whether they're registered, or find a TrustMark-registered business.
Check the TrustMark registerNever pay a large deposit up front. Agree a staged payment schedule tied to completed milestones, and hold a small retention until snagging is done.
Get it in writing: an itemised quote with scope, materials, start and finish dates, and how any changes (variations) will be priced.
Be wary of a cash-only price or pressure to start tomorrow. Both are red flags for an unaccountable job.
Want an extra legitimacy check? Run the Cowboy Checker on Piotr Korczynski before you contact them.
Run Cowboy Checker →Good to know
Common questions about Piotr Korczynski
Is Piotr Korczynski a legitimate business?
Piotr Korczynski has 13 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 Piotr Korczynski?
Piotr Korczynski has 13 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know Piotr Korczynski's reviews are genuine?
Piotr Korczynski's 13 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published, so you can open the source and read them yourself rather than trusting a single curated 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 Piotr Korczynski qualified and accredited?
We hold 1 independently sourced credential for Piotr Korczynski, including Waste carrier (Environment Agency). Each is attributed to the body that issued it in the credentials section. For example, Waste carrier (Environment Agency) is the Environment Agency: the regulator a trader must register with to carry waste or hold an environmental permit in England.
What does Piotr Korczynski specialise in?
Piotr Korczynski lists specialist services including Agricultural Building, Basement / Cellar Conversions, Brick / Concrete Structural Repairs, Car Ports, Cladding, Concrete Garages. If your job is one of these, look for it in their listed services or ask them to confirm for your project.