Stefan's Building Ltd
Extension Specialists. Stefan's Building Ltd has been vetted and approved by TrustATrader. Covering Cambridge and surroundings areas.
Membership number TT32831
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Register GuaranteeAbout Stefan's Building Ltd, Cambridge
Stefan’s Building Ltd provides home extensions across Cambridge, helping homeowners maximise their space with extensions that suit their lifestyle and budget.
We’re based in Cambridge and deliver high-standard house and bungalow extensions to customers in and around the local area. Our team works to your vision, whether you’re planning a major home extension or a smaller remodel, and we focus on clear guidance from the start. We’ll discuss how you want to use the space, your budget, and the practicalities before putting together a free quote.
We build, convert and refurbish homes in Cambridge and the surrounding area, and our services include:
- House Extensions
- Bungalow Extensions
- Loft Conversions
- Garage Conversions
- New Builds
- Roofs
- Kitchen Fitting
- Bathroom Fitting
- Windows & Conservatories
- Decorating & Renovations
- Carpentry & Joinery
- Plastering & Finishing
- Surveying & Planning
- Plumbing & Heating
- Drawings & Plans
- Building regulations
- General Building Work
If you’d like a free quote or want to discuss your home extension plans, please use the contact details above to get in touch.
Please mention TrustATrader when you get in touch.
You can also visit our website to find out more or view case studies.
Photo gallery
Extension, Swaffham Bulbeck, Cambridge
9 photos
Kitchen Extension Cambridge
14 photos
Extension, Cambridge
12 photos
Extension Duxford, Cambridge
12 photos
Kitchen Extension, Cambridge
24 photos
All other media
54 photos
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Stefan's Building Ltd
- Identification checked
- Company address verified
- Customer references checked
- Agreed to TrustATrader's high standards
- Agreed to complaints procedure
Insurance details
| Provider | Simply Business Insurance |
|---|---|
| Verified | 6th May 2026 |
Cambridgeshire
Qualifications
- ASSURE Certified Installer - Fenestration Fitter and Surveyor
- Certificate - Bricklayers & Plasterer
- Federation of Master Builder
Reviews (6)
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Average rating: 5.0 out of 5
Review by Stefan
on 1st May 2026
"We highly recommend Stefan Buildings if you are looking for a reliable builder. We hired Stefan to build our single-storey back extention and we are really happy with the result. Always on schedule, clear on what the next steps would be, easy to communicate and with a great-looking result!"
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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Average rating: 5.0 out of 5
Review by Leigh
on 31st March 2026
"Stefan is someone I’m always happy to recommend through my architectural design practice. I consistently hear great feedback from clients, and his workmanship is excellent. I highly recommend him."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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Average rating: 5.0 out of 5
Review by Thomas Marty
on 24th February 2026
"A highly professional and knowledgeable team—efficient, trustworthy, informative, and honest. They were polite throughout, worked diligently, and never imposed on us. Excellent workmanship at a fair price. Would highly recommend Stefan."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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Average rating: 5.0 out of 5
Review by Belinda halpenny
on 18th October 2025
"Stefan was professional competent all the way through our renovation. He transformed our kitchen from three dark small spaces into an open plan insulated space. He recommended a good architect and quantity surveyor. He worked along with us to bring my concept into reality. Parts of the build were very tricky but he done his magic. Best points about Stefan He listens carefully and tries everything to make things work. Actually comes up with better solutions. He has great people that work alongside him esp James. He cares about the finished project and goes the extra mile. Great value, this may not be the cheapest quote but it represents true value. He is skilled passionate about his work and his customer skills are excellent."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0