House Extensions in Northumberland

We build house extensions, kitchen extensions and orangeries throughout Northumberland and surrounding areas. Northumbrian Builders has been trading since 1994 and has been a member of the Federation of Master Builders since 2008.

Whether you want a larger kitchen, an open-plan living space or a rear extension opening onto the garden, tell us how you want to use your home. We can discuss the building work, your plans and the next steps towards a quote.

From your first ideas to the building work

Our extension service covers planning and design through to the build. Each home is different, so the layout, access, existing structure and finish all need to be considered together.

We provide free quotes. If you already have drawings, send them with your enquiry; if you are at an earlier stage, describe what you would like to change. Call 01670 790828 to discuss your project.

House, kitchen and rear extensions

We carry out extension and orangery work throughout Northumberland and surrounding areas. Some of our extension services include:

  • Home Extensions
  • Kitchen Extensions
  • Orangeries
  • Side Extensions
  • Rear Extensions
  • Wrap Around Extensions
  • Ground Floor Extensions
  • Loft Conversions
  • Pre-Planning Advice
  • Free Quotes
  • Design & Planning
  • Full Build

A real extension project: Monmouth Court

At Monmouth Court, the original conservatory was replaced by a brick extension with an open-plan kitchen, dining and living space. The finished rooms combine a vaulted ceiling, rooflights and large glazed doors opening onto the garden and decking.

Our selected project gallery includes the finished exterior and interiors, construction photographs and the original conservatory, so you can see the transformation. View the Monmouth Court extension photographs.

Questions about your extension

What should I include when asking for a quote?

Send your postcode, a short description of the space you want to create, photographs of the existing area and any drawings you have. Include your preferred timing and an approximate budget if you have one.

Can I enquire before I have drawings?

Yes. Tell us what you would like to achieve and whether you are still exploring ideas or already working with a designer. This helps us understand the stage you have reached and discuss the next steps.

How much will my extension cost?

The cost depends on its size, the existing building, access, structural work and the finish you choose. A quote needs to reflect your particular project. Contact us with your plans and requirements to discuss a free quote.

Where can I see your completed work?

Visit our selected projects to see photographs of our building work, including Monmouth Court and the Acklington rear extension.

Related building services

Planning a wider refurbishment? Read about our kitchen services and roofing services, or contact Northumbrian Builders to discuss the work together.

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