Public evidence profile · Checked May 2026

BuildExtensions

RooferRaynes Park5.06 reviews · 1 independent public source
Credentials & registries
Federation of Master Builders
Awards & recognition
1 independent award
Trust Score
31out of 100
Building a public record
  • Rated 5.0 from 6 reviews
  • 1 credential shown

Worth checking: NFRC Competent Person Scheme (CompetentRoofer)

How this score is worked out
Rating5.0 / 5
Review volumeLow · 6
Independent sources1 independent public source
Credentials1 credential shown

How this score is made up

What customers say22.2 of 60
Independent checks7.7 of 30
Track record1.3 of 10
See the independent checks
  • Licences and credentials3.4 of 10.3
  • Ways to reach them3.4 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 recognition0.9 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.

Credentials and checks

Credentials, licences and vetting

Credentials and associations

Credentials and memberships

1

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

Federation of Master BuildersCurrent: Passed
Source reference
buildextensions
Source checked
11 Jul 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)
Independent recognition

Awards & recognition

2× Best of Houzz winner (2025, 2022)

Best of Houzz is an annual award from the home-renovation platform Houzz, given to the professionals its community rates most highly for design or customer service.

View award source (opens in new tab)

These are independent third-party awards: recognition earned from review communities and trade bodies, never paid placement.

Source-listed gallery

Photos listed on Houzz

1 photo

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
6 reviews in public evidence
Where these reviews are published
  • Houzz6 reviews · 5.0 avg
Sources

Where this information comes from

2 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.

Public evidence last checked May 2026

About

We are over 20 years experienced and well established building company based in Raynes Park, London. We have in-house architecture/Interior designer and building team. So we provide clients a full building work service as well as architectural service. We are specialised in Loft Conversions, House Extensions, New Builds, Basement and commercial works. We do quick response to all our client's enquires and build fast as well.

Services they list

Accessible DesignAnnexe Design & ConstructionBasement ConversionBasement WaterproofingBathroom InstallationBrickworkBuilding ConservationComplete Bathroom RenovationComplete Kitchen RenovationConcrete ConstructionCustom Build HomesDecking Installation

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.
Verify at the sourceCheck them yourself

Roofing isn't licensed, so anyone can set up - and it's a trade with more than its share of cowboys. A big re-roof must meet building regulations; CompetentRoofer (the Government-authorised NFRC scheme) registers roofers who can self-certify that, and vets and inspects them at least twice a year. Check they're on it before you hire.

Check the CompetentRoofer register
Never agree to roof work from a cold-caller at your door or an unsolicited 'we noticed your roof' note. That is the classic roofing scam.
Get a written quote that itemises access (scaffolding or a tower), the exact materials, and the workmanship guarantee, not a vague day rate.
Be wary of demands for a large cash deposit; agree staged payments against work you can actually see completed.

Want an extra legitimacy check? Run the Cowboy Checker on BuildExtensions before you contact them.

Run Cowboy Checker
Good to know

Common questions about BuildExtensions

Is BuildExtensions a legitimate business?

BuildExtensions has 6 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 BuildExtensions?

BuildExtensions has 6 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 BuildExtensions' reviews are genuine?

BuildExtensions' 6 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.

Is BuildExtensions qualified and accredited?

We hold 1 independently sourced credential for BuildExtensions, including Federation of Master Builders. Each is attributed to the body that issued it in the credentials section. For example, Federation of Master Builders is the Federation of Master Builders: members are independently inspected and can offer an insurance-backed warranty.

Has BuildExtensions won any awards?

BuildExtensions holds 1 independent award, including 2× Best of Houzz winner (2025, 2022). These are third-party awards: recognition that has to be won, not self-issued.

What does BuildExtensions specialise in?

BuildExtensions lists specialist services including Accessible Design, Annexe Design & Construction, Basement Conversion, Basement Waterproofing, Bathroom Installation, Brickwork. If your job is one of these, look for it in their listed services or ask them to confirm for your project.