Top 5 Builders in Cambridge

Hand-picked and independently researched — the most trusted builders in Cambridge, chosen on Google rankings, review signals and trade accreditations. No business pays for an organic spot.

Cambridge, Cambridgeshire
Independently Researched
No pay-to-rank
Updated 2026
Independently researched by the Top5Trades team·Last reviewed June 2026·How we choose our Top 5 →
Independently researched
No pay-to-rank listings
Reviews & accreditations checked
Top 5 only
1
M J Salmon & Son
Histon & Cambridge · Extensions, Lofts & Conversions · 40 Years

An established Histon-based building contractor working across Cambridge and the surrounding villages for over 40 years, with around 80% of work coming through referrals. Handles house extensions, loft and garage conversions, new builds and barn conversions — a genuinely local family firm, not a national chain.

2
Cambridge Loft Conversions
Central Cambridge · Lofts, Extensions & New Builds · Since 2006

An established Cambridge family business (founded 2006) specialising in loft conversions, extensions and new builds across the city and Cambridgeshire. Guides homeowners from design through to completion in-house — a genuine independent rather than a lead-gen middleman.

3
Up and Out Builds
Cambridge · Loft Conversions & Extensions · 25+ Years

An independent firm of loft conversion and house extension experts who have served Cambridge and the surrounding area for more than 25 years. Tackles all kinds of domestic construction for local homeowners — a long-established city builder.

4
Brunwin Construction
Cambridge · Extensions & Renovations · FMB · 30+ Years

Over 30 years building, extending and renovating homes across Cambridge, with a reputation built on customer satisfaction and recommendations. A Federation of Master Builders and TrustMark member offering a full building service — genuinely local and independent.

5
Roban Builders
Meldreth & South Cambridge · New Builds, Extensions & Renovations · Family-run

A family-run builder based at Meldreth serving South Cambridgeshire and the Cambridge area, covering new build homes, extensions, loft conversions, renovations and groundworks. Genuine local independent with a dated, real project portfolio.

How we chose the top 5 builders in Cambridge

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 Cambridge, 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 Cambridge

Cambridge 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 Cambridge builders cover?

Most builders in Cambridge also cover Trumpington, Cherry Hinton, Chesterton, Histon, Milton, Girton, Fulbourn and Sawston. 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.

Frequently asked questions

Our list is based on independent research. We look at how businesses rank organically on Google, the volume and quality of their reviews, verification across platforms like Checkatrade, Which? Trusted Traders and TrustATrader, relevant trade accreditations, and local trading evidence. No business paid to be included in the organic Top 5.
We look for membership of recognised bodies such as the Federation of Master Builders (FMB), public liability insurance and evidence of recent projects. For larger jobs, always confirm insurance and ask for references and a detailed written contract.
The organic Top 5 is based solely on our independent research and isn't open to paid inclusion. We do offer a Featured placement above the Top 5 for one local business per page — find out more about featured spots.
Most of the businesses on this list cover a wider area beyond Cambridge itself, typically including Trumpington, Cherry Hinton, Chesterton, Histon, Milton, Girton, Fulbourn and Sawston. Coverage varies by business, so always confirm your location when you make an enquiry.
We aim to review each list at least every three months, and this page was last reviewed in June 2026. If you believe a listing is out of date or inaccurate, please get in touch and we'll look into it promptly.

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