Builder
1st Call Building Solutions
Trust score
41out of 100
Rating4.0★
Review volumeLow · 4
Evidence breadth2 independent public sources
Profile statusListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
Planning evidence
Nearby projects
Checking nearby planning applications.
Reviews · public evidence
What customers say
These reviews are published independently on the named public sources below — not testimonials this trader 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.
4.0out of 5
Highlights
"Overall I was Happy with the work."
"The guys did a wonderful job building my bespoke garden office, would thoroughly recommend them"
"We hired Slawomir Kubis and his former business partner Radoslaw Celej for our single storey wraparound extension. They completely IGNORED our structural drawings - built a wall over our boundary on our neighbours' property, used incorrect steel, insufficient foundation, even caught them bribing a welding inspector. These guys are unqualified and it's astonishing that they can wind up one business (R&S Contractors) and start another (RC London Construction, 1st Call Building Solution) without any repercussions. They have cost us over £10k in mistakes that our new builder had to put right."
Detailed reviews
We hired Slawomir Kubis and his former business partner Radoslaw Celej for our single storey wraparound extension. They completely IGNORED our structural drawings - built a wall over our boundary on our neighbours' property, used incorrect steel, insufficient foundation, even caught them bribing a welding inspector. These guys are unqualified and it's astonishing that they can wind up one business (R&S Contractors) and start another (RC London Construction, 1st Call Building Solution) without any repercussions. They have cost us over £10k in mistakes that our new builder had to put right.
Overall I was Happy with the work.
The guys did a wonderful job building my bespoke garden office, would thoroughly recommend them
Sources
3 named public sourcesEvery signal, traced to its origin
Review sources
Official sources
About
Builder in London.
Services they list
Builder
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
London
The areas they list covering on a public directory; confirm they cover your address before you book.
Check them yourself
What to check before you hire
Worth checking yourself
Review volume: Low · 4
Profile status: Listed
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.
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Common questions about 1st Call Building Solutions
What do customers say about 1st Call Building Solutions?
1st Call Building Solutions has 4 public reviews, averaging 4 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know 1st Call Building Solutions's reviews are genuine?
1st Call Building Solutions's 4 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.
What does 1st Call Building Solutions specialise in?
1st Call Building Solutions lists specialist services including Builder. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
How long has 1st Call Building Solutions been trading?
1st Call Building Solutions has been reviewed on public sources since 2020.