How it works

  1. Post a job

    Post a job

    Tell us about your job, and we'll alert suitable extension builders in Swansea. 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.

  • Building & Maintenance

  • Ideal Works Ltd

  • Built right building

  • JDD Builders LTD

  • RJD Home Improvements

  • Martin Lewis Builders Ltd

  • No Limit Construction

  • Athena Builders

  • Dai Mac

  • Critical Group Ltd

  • Carl Richards Building Contractor

  • Dunvant Building Services

  • KG carpentry and building

  • Johns and Hopkins Construction

  • Baggridge Building Services

  • N.B Plumbing and Heating

  • Morgan Building Company

  • Blue kite builders

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 Swansea in West Glamorgan have an average review score of 98% positive based on 756 homeowner reviews.

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