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Craft Joinery & Building Ltd,
Bridgewater House,
Old Coach Road, Runcorn,
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House Extensions in Warrington, Runcorn  
and the Nearby Areas

Extending your home is a cost-effective and low-stress way to give your family the space they need. House extensions are fully customisable to individual properties and requirements, enabling you to create exactly what you need. Everything from the overall size to kitchens and bathrooms is tailored around you, ensuring your satisfaction with the build.

Based in Runcorn, Craft Joinery & Building Ltd provides a start-to-finish service for home extensions in Warrington, Lymm and all the surrounding areas we cover. Each project starts with a thorough consultation process, including a survey of your home, professional advice and feasible plans. This is vital to delivering an extension which you will love for years to come.

If a traditional extension isn’t right for you, we also offer conversions and garden rooms.

Please explore our gallery to see examples of previous extensions and other projects we have completed.

cream kitchenkitchen with table and chairs

All the Space You Need

Our team can build all types of home extensions, giving you the utmost flexibility. If you want to utilise awkward space to the side of your house, a side-return extension is ideal. Rear-facing and wraparound house extensions are best for large additions, while double-storey builds can really maximise your living area.

Craft Joinery & Building Ltd undertakes the following projects:

  • Single-Storey Extensions

  • Double-Storey Extensions

  • Rear Extensions

  • Side Extensions

  • Wraparound Extensions

We create all kinds of rooms and areas for our customers in Runcorn and Warrington, with nothing being outside our realm of expertise. Just some options are:

  • Kitchen Extension

  • New Bedroom

  • New Bathroom

  • Utility Room

  • Playroom

  • Home Office

  • Home Gym

  • Living Room Extension

Depending on the size of your extension, it might even be possible to create multiple new rooms.

kitchen with hooded worktopkitchen with wooden floor

Start-to-Finish House Extensions

When you choose our builders to complete your extension, you don’t have to worry about a thing. We provide a full project management service along with all necessary trades. This means we will organise and oversee all stages of your project, ensuring work is completed on time, on budget and in compliance with regulations.

Among other things, our services for house extensions include groundworks, foundations, structural work, brickwork, roofing, windows, doors, plumbing, drainage, gas, electrics, carpentry, joinery, flooring and tiling. We also install kitchens, bathrooms, en suites and utility rooms.

When we leave your property at the end of the build, you will have a completely finished extension ready for immediate use. Our team in Runcorn and Warrington works considerately and will leave your home clean and tidy. Throughout the build, we will do everything we can to minimise disruption and make you as comfortable as possible.

To discuss house extensions in the Runcorn and Warrington areas, please call 01928 775 990 or 07958 473 567.


Craft Joinery & Building Ltd, Bridgewater House, Old Coach Road, Runcorn, WA7 1QT


Craft Joinery & Building Ltd is a proud member of the Federation of Master Builders (FMB). All FMB members must:

  1. Meet strict qualifying criteria.

  2. Commit to a stringent Code of Conduct.

  3. Have a minimum 12-month trading history, public liability insurance and be subject to a strict vetting process.

Craft Joinery & Building Ltd can offer you a contract on your work and a warranty from FMB Insurance Services, assuring you of a better building experience.