Keystone Developments Ltd are a building company based in Derby. Our mission is to turn your house into the home that you've always wanted to live in. There's no need for the hassle of moving house when with a bit of imagination and some hard work from a trusted, qualified, local …
We recently hired KeyStone for our renovation, and the experience was outstanding. From day one, the team worked with incredible speed while maintaining top-quality standards. Rich was fantastic – his insight and experience made a huge difference, guiding us through every step with confidence and clarity.
The workmanship was excellent, and the whole process felt smooth and professional. If you’re looking for a reliable building company that delivers both efficiency and quality, we highly recommend KeyStone.
Jonny
Derby
Jan 2026
We designed it and Keystone with their expertise made our dream a reality. Their skill and attention to detail was brilliant. They made a number of improvements to our design, with our approval and we could not be happier. We would highly recommend Richard and his team.
What a Transformation!
Derby
Jan 2026
We had a third storey loft extension completed, featuring a beautiful en-suite and a Juliet balcony, and we honestly couldn’t be happier with the result. From start to finish, the company was absolutely fabulous and couldn’t have done any more for us.
Communication was consistently excellent throughout the entire project — we were always kept informed, listened to, and any questions were answered promptly and clearly. The workmanship is to a very high standard, and the space has completely transformed our home.
On top of that, the costs were very competitive, offering great value without compromising on quality or service. The whole process felt smooth, professional, and stress-free.
A huge thank you to Richard and Aaron for their hard work, reliability, and outstanding service. We wouldn’t hesitate to recommend them to anyone considering a loft extension or building work.
Becky Renolds
Derby
Jan 2026
Richard and his team were brilliant throughout our entire project. He supported us with making decisions on our 2 storey extension that were both cost effective but also matched our intended vision for our home. I was very grateful for him liaising with other contractors, building regulations and structural engineers etc and getting the whole project signed off; with having 2 small children in the house his experience and knowledge were incredibly valued.
Richard was brilliant at communicating with us and keeping us updated and his workmanship was fantastic. We would absolutely recommend Richard to family and friends.
The Banks
Derby
Jan 2026
Great job and a brilliant set of lads. Would highly recommend!
Grant / Spondon
Derby
Jan 2026
Richard and his team reroofed an extension for me, upgrading the insulation, moving security lights/camera and fitting new tiles, lead and fascias. We were both very pleased with the work done, and would definitely recommend his work.
ChrisP
Derby
Jan 2026
Fantastic work 100% reliable trustworthy prices very good clean and tidy very professional explained in detail the work that was carried out I'm proud and happy to show my family and friends my home
