About TSM

TSM Build – your trusted building company in Cambridge

TSM Build is a well-established building company in Cambridge, founded in 2003 and officially incorporated in 2017. Led by Tom Mowbray, a fully qualified bricklayer with years of experience working alongside some of the most respected builders in the Cambridge area, we’ve built a reputation for quality, reliability and craftsmanship.

As a local building company in Cambridge, we specialise in delivering a wide range of domestic and commercial construction services – from groundworks and footings through to roofing, renovations, home extensions, and bespoke new builds.

Whether you’re planning a modern extension, restoring a period property, or developing a small residential site, TSM Build has the expertise to bring your project to life.

We’re based in Harston, South Cambridgeshire, and serve clients across Cambridge and neighbouring areas, including Huntingdon, Newmarket, Saffron Walden, Hitchin, and St Neots. No matter the size of the job, we pride ourselves on offering the same professional, personalised service that’s made us a go-to building company in Cambridge.

All of our work is fully guaranteed for your peace of mind. We’re happy to operate under a standard JCT contract where required, and we hold comprehensive public liability and employer’s liability insurance up to £1 million. References and examples of past projects are available upon request.

If you’re looking for a dependable, experienced building company in Cambridge, get in touch with TSM Build today to discuss your plans.

Our Promises

  • Quality Craftsmanship

    As experienced Cambridge builders, we take pride in our work — every wall, extension, or restoration project is delivered with care, precision, and attention to detail.

  • Personal Service

    We’re a small, hands-on team, so you’ll always know who’s working on your project. Our clients value the personal approach and dedication our Cambridge-based builders bring to every job.

  • Local Expertise

    Being Cambridge builders, we understand local planning requirements, architectural styles, and trusted suppliers — helping your project run smoothly from start to finish.

  • Versatility

    From garden walls to full home extensions, we handle a wide range of brickwork and building projects across Cambridge and the surrounding area.

  • Respectful and Reliable

    We treat your home with respect — turning up when we say we will, keeping things tidy, and delivering on every promise.

  • Built to Last

    Combining traditional techniques with modern materials, our Cambridge builders ensure every structure is solid, safe, and built to last for generations.

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