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Quality Building & Project Management Specialists

Trusted and Experienced Building Contractors in Northamptonshire and Warwickshire.


ButterworthCox Building Contractors

We are a trusted local building company based in Northamptonshire, offering a full range of residential building services including barn conversions, period home renovations, home builds and project management.

Delivering your perfect home project.

Built on a strong reputation with local clients, ButterworthCox Building Contractors pride themselves on exceptional customer service along with unrivalled quality of craftsmanship.

Specialising in period homes, barn conversions, home builds and project management, our highly trained and motivated team offer our clients a high standard of service with excellent communication at every stage of the project.

Get in touch to discuss your project today.


Our Services

We have a long-standing reputation in the Northamptonshire area working sympathetically with many listed and period properties, combining our extensive experience in traditional construction methods and craftsmanship.

We have a vast knowledge of specialist techniques, as well as working with original materials as far as possible.

Barn Conversions

Sympathetic restoration using traditional methods and original materials.

Home Builds

A finished project you can be proud of.

Renovation Projects

Creating a space to compliment your lifestyle.

Project Management

Using our expertise to manage your project.

Our home building and project management services are highly respected locally and we pride ourselves on excellent communication with our clients.


Butterworth Cox transformed our 17th century thatched house, replacing the bathrooms, the floor finishes and redecorating throughout. They did a first class job at a reasonable price - master builders. I have no hesitation in recommending them for future work.

Anthony Charnley

Just wanted to say a massive thank you for the amazing work you and your team have done. It has been a completely stress free process from start to finish with an incredible team of professionals who take pride in the quality of their workmanship. Will definitely be recommending you and using you in the future.

Debbie Pyne

From day one to completion of the original conversion project, we were in very capable hands. The project was on time, to budget and flowed smoothly along.
All the people who worked on the building were lovely to have around. Skilled, polite and fun. David Cox is very organised. He is full of good ideas for nice touches. He listened to our requirement for steps to be shallow and suitable for my elderly mother to manage with her wheelie walker or walking stick.

We highly recommend this building contractor for quality workmanship, good company and smooth sailing. Everyone who has been to see the finished home has had nothing but nice things to say about it.

Mr and Mrs Wilkinson

We would both like to thank you for the excellent work you and your team did on our extension and home improvements! Everything was planned in advance - and we knew exactly who to expect and when as the works progressed. Without exception everybody kept us updated on their progress and worked around us where necessary. All the works were completed efficiently and in a very considerate fashion clearing up (as much as possible) at the end of each day. We are both delighted with the end result and would heartily recommend you and your Company to anyone in the future.

Dawn and Peter Black

We have used Butterworth Cox for the last 15 years whenever we have needed any building work carried out, and have always been extremely satisfied with the results.
The work is always carried out in a timely manner to an extremely high standard and to budget. David Cox is a perfectionist and treats every piece of work as if he were doing it for himself.

Peter Cooper

Having bought a very tired home, David stepped in and did some very pleasing alterations immediately, all of which were to a high standard. A little later I finally got planning permission for an extension. Despite the Covid hitch I had no hesitation in asking David to complete the project.

Jennifer Edwards

ButterworthCox have done a number of jobs for me and have always been super professional. David provides great advice, ideas and completes the work to the highest standard. I would not hesitate to recommend them.

Chris Moysen

Having found it difficult to find a builder who would quote for / fix a small leak in our roof, we received a recommendation to call David. He quoted promptly, attended when advised and carried the work out as described, sourcing matching tiles so the repair blended in with the original roof of the property. We found him to be friendly and reliable and wouldn’t hesitate to use his services again.

Mr Thorne

Case Studies

Renovation Project, Welton

Barn Conversion, Slapton

Barn Conversion, Preston Capes

Barn Conversion, Ravensthorpe

Get in touch

If you have any further questions regarding our services, or wish to discuss your potential project and options with our friendly team, please do not hesitate to contact us.