How it works

  1. Post a job

    Post a job

    Tell us about your job, and we'll alert suitable extension builders in Castle Cary. It’s simple and free.

  2. Hire a tradesperson

    Tradespeople respond

    Once your job is posted, you'll get responses from interested extension builders through the website.

  3. Leave feedback

    Review and choose

    Browse profiles, work history, and feedback, then choose who you wish to share your details with.

  • M.T.S Builders

  • Snelling carpentry

  • LJB Carpentry and Building Services

  • CC Brickworks

  • SM Building and Landscaping

  • SDS Building Services

  • JST Builders

  • AMC Groundworks and Building

  • The West Country Home Company Ltd

  • N G Barham Building Services Ltd

  • Baxter Construction (SW) Ltd

  • Ian Whiteley Carpentry & Construction

  • Insideout Building

  • Buckland Builders

  • Thomas Burns Plastering Services

  • M.G.K Carpentry and construction

  • Ark Building Contractors Limited

  • Nadder Valley Carpentry ltd

  • T George Ltd

  • Telos Architecture

What can extension builders do?

MyBuilder is the simplest way to find a reviewed and vetted extension in your local area. We can connect you with local extension builders near you, so you can choose the ideal tradesperson for your project with confidence.

Whether your plans are big or small, we can help you find a skilled extension builder to support you with your job. Your contact details are only shared with tradespeople you want to speak to, so you can check out their credentials, read honest customer reviews and get free quotes to compare.

There are lots of jobs that extension builders can help with, including:

  • Extending your home with an extra room
  • Two+ storey extensions
  • Adding partition walls to create more rooms
  • Building annexes or external structures

Top Extension Builder Reviews


Extension Builders working near Castle Cary in Somerset have an average review score of 99% positive based on 911 homeowner reviews.

Trusted by experts

Mumsnet rated 2019

Don’t just take our word for it, homeowners love MyBuilder too. We’re proud to be rated by Mumsnet.