- Source checked
- 18 Mar 2026
Public evidence profile
C Thorne Building Ltd
Credentials & registries
City and Guilds
Companies House
Active incorporated business
Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.
Credentials and associations
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
Companies House registration
ActiveActive incorporated business
C Thorne Building Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.
Legal nameC Thorne Building Ltd
Company number10030193
Incorporated
Registered activityConstruction installation
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.
From customer reviews
What customers consistently say
What this trader's customers report about their jobs, in their own words.
Respectful and tidy in your home: “Each day, and on completion our home was left in a tidy state.” · Checkatrade
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
How Checkatrade customers rate them (out of 5)
Reliability4.9
Communication4.9
Quality of work4.9
Where these reviews are published
- Checkatrade279 reviews · 5.0 avg
Local context
Rated 5.0, in line with the local average for builders in Southampton
Across 294 builders in Southampton, 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
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
In Southampton, Hampshire.
Areas served
HampshireSouthampton
The areas they list covering on a public directory; confirm they cover your address before you book.
Independent checks
About this business
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
Always confirm credentials and quotes with the business directly before hiring.
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 C Thorne Building Ltd before you contact them.
Run Cowboy Checker →Good to know
Common questions about C Thorne Building Ltd
Is C Thorne Building Ltd a legitimate business?
C Thorne Building Ltd has 279 independent public reviews, rated 5 out of 5. It is a registered business on Companies House, listed as active, and the public register shows no adverse status (no dissolution, insolvency or strike-off) against it. 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 C Thorne Building Ltd?
C Thorne Building Ltd has 279 public reviews, averaging 5 out of 5. The reviews section shows the aggregate rating, review volume, and review source information we hold.
How is C Thorne Building Ltd rated on reliability and quality?
On Checkatrade, customers rate C Thorne Building Ltd by category: Reliability 4.9 out of 5, Communication 4.9 out of 5, Quality of work 4.9 out of 5. These are per-category scores from real published reviews. They show where C Thorne Building Ltd is strongest, not just the overall average.
How do I know C Thorne Building Ltd's reviews are genuine?
C Thorne Building Ltd's 279 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 C Thorne Building Ltd qualified and accredited?
We hold 1 independently sourced credential for C Thorne Building Ltd, including City and Guilds. Each is attributed to the body that issued it in the credentials section. For example, City and Guilds is City & Guilds: a long-established UK awarding body whose qualifications certify a tradesperson trained to a recognised vocational standard.
Is C Thorne Building Ltd a registered business?
C Thorne Building Ltd is a registered business on Companies House (company number 10030193), incorporated 27 Feb 2016, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.