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Enquire about featuring →A loft-conversion and extension specialist based on Shirley Road, Croydon (CR0), covering Croydon and South London. A TrustMark-accredited Chartered Building Company (CIOB) with a 10-year warranty, handling dormer, mansard, hip-to-gable and Velux conversions plus extensions — a genuinely local independent.
An FMB-member building firm with over 20 years' experience covering Croydon and South London. House extensions, loft conversions and full house refurbishments with complete project management from start to finish — a genuinely local independent, not a national chain.
A building firm covering Croydon, Sanderstead and the surrounding area, handling home extensions, loft conversions and new builds. A genuinely local independent managing projects through design and build.
An FMB building firm specialising in bespoke home-improvement projects across Sutton, Croydon, Carshalton and Surrey, with over 15 years' combined experience. Loft conversions, extensions, kitchens, bathrooms and joinery — a genuinely local independent.
A design-and-build firm covering Croydon (CR0) and South London, FMB and CIOB accredited, handling rear and side-return extensions, loft conversions and full refurbishments under one roof — a genuinely local independent with over ten years' experience.
How we chose the top 5 builders in Croydon & Sutton
Every business on this page earned its place through independent research. We look at where companies rank organically on Google, the volume and quality of their reviews, ratings and verification across platforms like Checkatrade, Which? Trusted Traders and TrustATrader, relevant trade accreditations, and the kind of word-of-mouth and social proof that's hard to fake. No business can pay to appear in this organic Top 5 — the list is earned and reviewed regularly.
If you're comparing builders in Croydon & Sutton, any of the five above is a sound starting point. We'd still recommend getting more than one quote and confirming current availability and accreditations directly with the business before you book.
Finding a good builder in Croydon & Sutton
Croydon & Sutton has a healthy mix of independent tradespeople and small local firms, and as anywhere, quality varies. Every business on this page earned its place through independent research — online reputation, verified reviews, local trading evidence and professional credentials — and none of them paid to appear.
Building work is the biggest investment of any trade here, so look for a builder registered with a recognised body such as the Federation of Master Builders (FMB), fully insured, and able to show recent projects and references. Always get a detailed written quote and a clear schedule.
What do Croydon & Sutton builders cover?
Most builders in Croydon & Sutton also cover Croydon, Purley, Wallington, Carshalton and Sutton. Coverage varies by business, so it's always worth confirming your postcode when you make an enquiry.
Typical jobs include extensions, renovations, new builds and structural work — and most offer free quotes for larger work.
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