RC Construction Builders Ltd
49Trust ScoreBuilding a public recordout of 100
17 reviews (9 in the last 12 months)
Public evidence profile · Checked May 2026
4siblings
Trust Score
24out of 100
24 out of 100, with a caution: only 3 reviews held yet. A small public record keeps the evidence thin, and the score reflects that.
- Rated 5.0 from 3 reviews
How this score is worked out
Rating5.0 / 5
Review volumeLow · 3
Independent sources1 independent public source
CredentialsNo credentials shown yet
How this score is made up
What customers say19.5 of 60
Independent checks2.9 of 30
Track record1.3 of 10
See the independent checks
- Licences and credentials0 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.
Source-listed gallery
1 photoPhotos listed on Houzz
These sources do not label every image as completed work. The gallery may include projects, people, logos or certificates, so it does not count as completed-work evidence.
Reviews · public evidence
What customers say
These review totals are published independently on the named public source below, not testimonials this business chose to show. We show the aggregate rating, review volume, and source attribution we hold so you can weigh the evidence yourself.
5.0out of 5
Where these reviews are published
- Houzz3 reviews · 5.0 avg
Local context
Rated 5.0, in line with the local average for builders in Harpenden
Across 7 builders in Harpenden, 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
1 named public sourceWhere 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
Public evidence last checked May 2026
About
4siblings offer much more than a team of builders to get the job done. We have over 25 years’ experience in construction and we offer a completely tailored approach to each of our clients. Whether it be small, medium or large extensions, refurbishment projects or complete re-builds, we will provide the right team of architects, designers and engineers from the very start of your project. We have the experience, knowledge and contacts to help and have teams to suit all budgets. We would be delighted to talk through your plans and ideas - please call or message us today!
Services they list
DemolitionFloor PlansFoundations ConstructionGarage BuildingHome RenovationHouse ExtensionsHouse PlansNew Home ConstructionRoof WaterproofingSite PlanningSite PreparationStructural Engineering
Listed on public sources or the business's own website; check directly that they cover your job 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.
No credentials are shown here and the business has not claimed this profile. Ask to see certificates and insurance directly.
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 4siblings before you contact them.
Run Cowboy Checker →Good to know
Common questions about 4siblings
Is 4siblings a legitimate business?
4siblings has 3 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 4siblings?
4siblings has 3 public reviews, averaging 5 out of 5. The reviews section shows the aggregate rating, review volume, and review source information we hold.
How do I know 4siblings' reviews are genuine?
4siblings' 3 public reviews come from a named public review source. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show the review source information and aggregate rating we hold rather than selling rankings, so you can weigh the evidence for yourself.
What does 4siblings specialise in?
4siblings lists specialist services including Demolition, Floor Plans, Foundations Construction, Garage Building, Home Renovation, House Extensions. If your job is one of these, look for it in their listed services or ask them to confirm for your project.