Do you need extra space? Perhaps a room to store the children's toys? Somewhere you can take time out and relax? Or extra space to entertain guests? We can make your dream a reality with our extensive range of home extension and home conversion services.

Martindale Windows Home Extensions in Northampton

Whether you require a small porch creating, a large rear extension or even a stylish loft conversion, Martindale will guide you through everything you need to know about the planning process to build the perfect new room in your home.

Since becoming established over 40 years ago, we've worked with home owners from across Northampton, Milton Keynes, Bedford and beyond to create the perfect space for their requirements. Our extensions are built around your budget and living requirements to ensure that your home development is tailored to your long-term living ambitions.

So whether you'd like to take us up on our full design and planning services or would simply like us to create your new building around an existing footprint, get in touch today to tell us about your home improvement requirements.


Northamptonshire home extensions by Martindale Windows

Martindale Windows Extensions

We can work with your budget to tailor tour design around your exact needs, helping you to visualise your extension with our bespoke 3D drawing software. If you are interested in finding out how much a new extension would cost in your home, please contact us for a FREE no obligation quote.

Martindale Windows Conversion in Northampton

Martindale Windows Conversions

Whether you're looking to convert an existing room or would like to create a new space in by developing a new loft conversion, Martindale can design an exciting and stunning room around your exact specifications. To find out more, please contact us for a FREE no obligation quotation.


What our customers say about our Extensions...

Excellent company, cant recommend highly enough. Russell and the whole team are very professional and the standard of the work is outstanding. They were always on time and they got the work done fast and efficiently. Russell was always available at the end of the phone for any questions and nothing was to much. My work was completed on time and for a very reasonable price.

Couldn't be happier with the extension, top class job completed by an excellent company.

Nick Darkes via Facebook


The Martindale Team were great, we had our old garage knocked down and the guys took it all away.

We now have a downstairs toilet, storage area, playroom and a bedroom. We wanted to utilise the space where the drive used to be.

The Team were great from start to finish. Russ made the quote so easy for us and kept us informed. He was always accessible and dealt with any problems that come up along the way. The Team were all friendly and most importantly tidy.

Rob Woodings via email