Public evidence profile

Carl Construction Limited

BuilderLondon5.011 reviews · 3 independent public sources
Review quality
No reviews in 12 months
Credentials & registries
2 credentials shown
Companies House
Active incorporated business
Trust Score
53out of 100
Good record, gaps to check

53 out of 100, with a caution: newest review we found is from June 2024. Weigh that age against the score.

  • Rated 5.0 from 11 reviews across 2 review sources
  • 2 credentials shown

Newest review June 2024

Worth checking: TrustMark

How this score is worked out
Rating5.0 / 5
Review volumeLow · 11
Independent sources3 independent public sources
Credentials2 credentials shown

How this score is made up

What customers say29.1 of 60
Independent checks15.3 of 30
Track record8.1 of 10
See the independent checks
  • Licences and credentials4.1 of 10.3
  • Ways to reach them3.4 of 3.4
  • Reviewed on more than one site2.6 of 5.1
  • Registered company details5.1 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.

Contact on Checkatrade (opens in new tab)
Bricklayer / masonExtension / renovation contractor
Trust at a glance

What we can verify about Carl Construction Limited

3 checks

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.

Review qualityNo reviews in 12 monthsSee detail →Credentials & registries2 credentials shownSee detail →Companies HouseActive incorporated businessSee detail →
See the full verification checklist for Carl Construction Limited →
Credentials and associations

Credentials and memberships

2

These credentials and memberships are attributed to named public sources. Check the source before relying on them.

Federation of Master BuildersCurrent: Passed
Source reference
carl-construction-limited
Source checked
27 Apr 2026

What this protects you with: As a member of the Federation of Master Builders, you get independent vetting of the builder, the option of an insurance-backed warranty on the work and access to a dispute resolution service.

Open this source entry (opens in new tab)
Companies House registration

Active incorporated business

Active

Carl Construction Limited is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.

Legal nameCarl Construction Limited
Company number09934510
Incorporated
Registered activityCivil engineering construction
Official checkOn the public register

Why this helps you judge trust: this trader is linked to a registered company with named people who are legally accountable for it, on an official register anyone can check, a layer of accountability an unregistered trader doesn't offer. Around 10 years on the register also points to an established business rather than a brand-new one.

Review quality check

Review recency

Review recency

How recently this business's reviews were left, kept separate from the star rating and the number of reviews.

No reviews from the last 12 months are shown.

Reviews · public evidence

What customers say

These reviews are published independently on the named public sources 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
11 reviews in public evidenceReviewed on public review sources since 2023Most recent review Cross-checked across 2 review sources
Customers often mention
  • Great communicationMentioned in 33% of reviews we've read

Based on the 9 reviews with a star rating

5 stars9
4 stars0
3 stars0
2 stars0
1 star0
Where these reviews are published
  • Which? Trusted Traders6 reviews · 5.0 avg
  • Checkatrade3 reviews · 5.0 avg

Highlights

“Karel did a fantastic job at preparing my flat for sale. He and his team took great care to ensure that the finish was superb. As soon as the flat went on the market, we had lots of viewings and shortly thereafter 2 offers. I’m delighted to say that it’s now sold! Cheers Karel!”

AnonymousCheckatrade5.0 rating

“I know karl, from karl construction Ltd For many years now,we have delivered Many projects with hem in Central London, Battersea, Peckham. He has also assisted us us a contractor-side Consultant with a contact we had to agree With the client and principal contractor we where working with. He's a good man and really honest person A true professional and we look forward to work with hem on the feature projects He has also become a good friend over the years, I definitely recommend Carl Construction”

AnonymousCheckatrade5.0 rating

“I recently had some works done at my home and these guys are so professional reliable and have give me a top top finish and so well priced couldn’t have asked for more”

AnonymousCheckatrade5.0 rating

Detailed reviews

Which? Trusted Traders Consumer5.0 / 5

I found carl reliable, helpful very well organized and his team as well. Very pleased with the work and final results

Which? Trusted Traders
Customer in Greater London5.0 / 5

Karel (pronounced Carl) was very proactive and responsive from the initial discussions. We already had a kitchen quote from Howdens so were predominantly looking for a fitter. However Carl Constructions seems to work on a consultancy/middle man basis, from a range of suppliers and fitters, which we found didn't quite work for our budget and needs. Ultimately we didn't contract Karel for these reasons, nevertheless he was very approachable and responsive in discussions and I wish him well

Which? Trusted Traders
Customer in Greater London5.0 / 5

We contracted Karel for a complete refurbishment of a two bedroom flat. Karel was very responsive from the start and always available for questions. He kept within a tight budget and was good with advice on different solutions. Some of the work had to be redone because of misunderstandings between the suppliers which meant that the work finished a few weeks longer than expected - however this is to be expected in this industry in my experience and Karel took our feedback on board. I appreciated his transparency and constant availability which makes him stand out in this industry where I worked with many people.

Which? Trusted Traders
Local context

Rated 5.0, above the local average for builders in London

Across 2615 builders in London, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.

Sources

Where this information comes from

5 named public sources

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

Business and public registers

Check dates vary by source. Where we hold a date, the check shows it.

About

Carl Construction Ltd are an advocate for anything Construction Our services to Residential, Domestic and Commercial Projects Contractor-Side Consulting Client-Side Consulting Contracting Principal Contracting Including Expert Witness works Development as Developer Originally from South Africa, Karel now lives in North West London. He has over 23 years of experience in multiple continents, a passion for Construction and a solid foundation of education and a drive to excel in project delivery The ethos and service never differs, each project Carl Construction undertakes is carefully planned and meticulously monitored from early stages of procurement, through to practical completion and end user satisfaction Karel has built his business along with a specialist team of Industry Experts which is built on trust and accomplishment to ensure smooth running, and outstanding results Karel's journey in the Industry is a testament to his unwavering commitment to his craft

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.

What this business says about itself
From their own website

What this business says about itself

  • Good to know: Free quotes

Accreditations it displays. Confirm each is current on the official register before you hire:

These are statements the business makes on its own website, worth confirming in writing (and on the official registers) before you hire, not independently verified by us.

Independent checks

About this business

How long they've really been tradingIndependent sources agree they've been operating since at least 2016. That's 10 years, confirmed across 2 separate sources.
Company registered2016Website online since2020First public review2023
A real, registered businessWe cross-checked Companies House: this business is officially registered for work that matches the builder services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry.
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.
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 register
Never 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 Carl Construction Limited before you contact them.

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Good to know

Common questions about Carl Construction Limited

Is Carl Construction Limited a legitimate business?

As of 29 Jul 2026, we hold 11 independent reviews across Which? Trusted Traders, Checkatrade and FMB for this business, and Companies House lists (no. 09934510) as active, checked 25 Jun 2026. This is independent public evidence, not a guarantee of workmanship. If anything here is out of date, the business can request a correction.

What do customers say about Carl Construction Limited?

Carl Construction Limited has 11 public reviews, averaging 5 out of 5, gathered across 2 review sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know Carl Construction Limited's reviews are genuine?

Carl Construction Limited's 11 public reviews are gathered and cross-checked across 2 review sources. Reviews spread across several review 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 Carl Construction Limited qualified and accredited?

We hold 2 independently sourced credentials for Carl Construction Limited, including Which? Trusted Trader, Federation of Master Builders. Each is attributed to the body that issued it in the credentials section. For example, Which? Trusted Trader is Which? Trusted Trader: an endorsement from the consumer champion Which?, given to traders who pass its assessment process.

Is Carl Construction Limited a registered business?

Carl Construction Limited is a registered business on Companies House (company number 09934510), incorporated 4 Jan 2016, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.

What does Carl Construction Limited specialise in?

Carl Construction Limited 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.

When was Carl Construction Limited's website registered?

Carl Construction Limited's website has been online since 2020, according to the public domain registry. This dates the website, not necessarily when the business began trading.

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