# Cox Format Developments Limited Cox Format Developments Limited is a builder in Barnet. Rated 5.0/5 from 82 public reviews across 2 review sources. This is the MyTrustedTraders public-evidence profile for this trader, with independent reviews, credentials and registry data from named public sources, no ads, and no paid placement. Trust Score: 61 out of 100, with a caution: newest review we found is from July 2021. Weigh that age against the score. Independent sources agree they've been operating since at least 1994. That's 32 years, confirmed across 2 separate sources. We 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. ## About Bricklayer in Barnet, Hertfordshire. ## Public review evidence (by source) | Source | Average rating | Reviews | | --- | --- | --- | | Which? Trusted Traders | No rating shown | 53 | | Checkatrade | 5.0/5 | 23 | _Per-source review counts may overlap. They need not sum to the 82 cross-checked total above._ Rated 5.0, above the local average for builders in Barnet. Across 125 builders in Barnet, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally. Most recent review: 5 years ago. ## What customers consistently say _Recurring strength themes from this trader's own reviews, each with a verbatim quote:_ - **Quality of the work** (Quoted from 2 reviews): "Workmanship excellent and the team helpful and friendly." ยท Checkatrade, 1 Jul 2021 ## In customers' own words _Verbatim quotes from this trader's public reviews, each attributed to its source:_ > "CFD did a great job. Very clear about what the work entailed and the price. Workmanship excellent and the team helpful and friendly. Aftercare excellent too. We're really pleased" > Source: Simon P (5.0, via Checkatrade) > "A very professional company, work completed on time, on budget all done to a high standard. Highly recommended." > Source: Anonymous (5.0, via Checkatrade) > "We cannot praise the team at Cox Format highly enough for their professionalism, efficiency and quality of work. They were so considerate of our home. Every day they would brief us on the works taking place and every day they delivered. They were innovative, they were cooperative and they were so tidy. Huge thanks to Mark, James and all the team for a hugely successful project. They finished on budget and on the exact date that they said they would complete. We would love to work with Cox Format again and we would have no hesitation in recommending them." > Source: Anonymous (5.0, via Checkatrade) ## Trades Builder, Bricklayer / mason, Extension / renovation contractor, Landscaper, Roofer, Tiler, Window / door fitter ## Services they list _Listed on public sources or the business's own website; check directly that they cover your job before you book:_ - Bricklayer ## Areas covered _Towns and areas this trader lists serving. This is their own stated coverage, so confirm they cover your exact address before you book:_ - Barnet - Hertfordshire ## What we checked, and when As of 29 Jul 2026, we hold 82 independent reviews across Which? Trusted Traders, Checkatrade and FMB for this business, and Companies House lists (no. 02913434) as active, checked 25 Jun 2026. _What MyTrustedTraders independently checked for this business (verified items only):_ - Review volume: MyTrustedTraders shows 82 public reviews on this profile. (via MyTrustedTraders public listing) - Public listing spread: MyTrustedTraders shows 3 public listings for this trader. (via MyTrustedTraders public listing) - Business identity: MyTrustedTraders shows public business identity data for company number 02913434 with operating status active. (via MyTrustedTraders public listing) - Contact phone: MyTrustedTraders shows a public phone contact on this profile. (via MyTrustedTraders public listing) - Current credentials shown: MyTrustedTraders shows 1 current credential on this profile. (via Public credential evidence) Full verification checklist: https://mytrustedtraders.com/traders/cox-format-developments-limited/checks ## Credentials & sources - Credentials shown: 2 (1 currently verifiable, listed below) - Federation of Master Builders: the Federation of Master Builders: members are independently inspected and can offer an insurance-backed warranty 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. - Companies House status: Active - Evidence held from: Which? Trusted Traders, Checkatrade, Federation of Master Builders, FMB - Check dates vary by source. Where we hold a date, the check shows it. ## What this business says about itself _Self-declared on the trader's own website, not independently verified:_ - VAT registered: GB 645264434 (check on the HMRC VAT checker: https://www.gov.uk/check-uk-vat-number) ## Before you hire a builder _What to check when choosing this kind of trade (general guidance, not a claim about this business):_ - 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. - Ask to see a portfolio of completed work like yours, plus recent references you can contact. - Check the credentials and registrations that matter for this work, and that they are current. ## Contact - Phone: 020 8449 9697 --- Source: MyTrustedTraders, https://mytrustedtraders.com/traders/cox-format-developments-limited Real public evidence only: every figure traces to a named source and is cross-checked. If a source does not carry a field, it is not shown.