How it works

  1. Post a job

    Post a job

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

  • J D Renovations and Building Services

  • CE ltd

  • Eco Build (SW) Ltd

  • McCann Building Services

  • DelivaGo LTD

  • Daves Patio & Building Services

  • A Spec building & landscapes

  • Britton Construction

  • Jpb masonry & builders

  • Puzzle construct limited

  • Zetasin Engineering

  • Kieran McConnachie

  • Rowla Construction Limited

  • Blackrock Construction

  • Mepani Builders

  • ORBIT PAINTING& DECORATION

  • A B plastering and building

  • Extension Plans

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

99%

Extension Builders working near Cardiff in South Glamorgan have an average review score of 99% positive based on 781 homeowner reviews.