S.T Contracts Ltd
Home Improvement Company in Watford, Hertfordshire
As the owners of S.T Contracts Ltd, we lead a family-run construction business offering comprehensive building services to homeowners in Watford and surrounding areas. Our experience spans more than twenty years, during which we have refined a process that places quality workmanship and dependable delivery at its core. We oversee projects in their entirety, from early planning through to final inspection, supported by our own skilled tradespeople. Memberships with established professional bodies, along with full insurance cover and DBS-checked staff, underline our commitment to operating responsibly and professionally.Our portfolio includes extensions, loft and garage conversions, garden rooms and full property refurbishments, all tailored to the existing structure and client objectives. We take pride in designing practical solutions that add usable space while respecting local property styles and planning considerations. Clients benefit from free quotations, complimentary 3D visuals and clearly defined contracts prior to commencement. Every project concludes with a comprehensive walkthrough to address finishing details, supported by a six-month workmanship guarantee. Our business continues to grow through recommendations, reflecting the trust clients place in our consistent standards and hands-on approach.
Areas Served
- St Albans Radlett Harpenden Watford Borehamwood Bushey Rickmansworth Hemel Hempstead Aldenham Abbots Langley Kings Langley Potters Bar Chorleywood Berkhamsted Hatfield
Business Details
- Licensed and insured
- Year established: 2009
Highlights & Specialties
- Family-run Watford builders delivering renovations and conversions since 2009.
- All trades in-house, ensuring consistent quality and accountability.
- Garden rooms built bespoke, insulated, with electrics and plumbing.
- Free 3D designs provided before work starts.
- Clear written contracts, fully insured, DBS-checked staff.
- Six-month guarantee and full snagging walkthrough included.
Social Profiles
Contact Details
Products & Services
Garden Rooms
read moreWe deliver bespoke garden room builds completed to a high standard, with a focus on quality workmanship and dependable project management. Our service covers the full construction process, including foundations, structure, services and finishing, so you receive a complete space ready for use. We maintain building regulations compliance, support planning where needed, and operate with transparent, itemised costs.
Home Renovations
read moreWe specialise in tailored renovation solutions that enhance and transform homes. Drawing on over 20 years of hands-on experience, we coordinate all aspects of the work, including structural alterations, kitchens and bathrooms. Clients benefit from a single, dependable team committed to delivering well-managed projects and professional results at every stage.
Building Services
read moreOur building services combine technical expertise with thorough project coordination to deliver reliable construction outcomes. With 24 years of experience, we oversee residential and commercial works from planning through to completion. We focus on compliance, quality workmanship and efficient management, ensuring every project is completed smoothly and to a lasting standard.
House Extensions
read moreWe provide a comprehensive house extension service focused on quality construction and professional delivery. With decades of hands-on experience, we manage planning guidance, design and build stages in-house. Our approach ensures clear communication, controlled project timelines and compliant, durable extensions that integrate seamlessly with the existing home.
Garage Conversions
read moreOur garage conversion service is designed to create high-quality living spaces from existing garages. Drawing on extensive industry experience, we oversee design, construction and finishing with careful attention to detail. Every project is completed in line with current building regulations, resulting in a fully functional space built for long-term use.
Solar Panels
read moreWe deliver professional solar panel installation for domestic and commercial clients, providing fully compliant systems installed by our MCS accredited team. Every project begins with a free site survey and tailored system design. We focus on quality workmanship, clear communication and reliable delivery from initial consultation through to final handover.
Reviews Write a Review
Dawn Patrick
Feb 23, 2025
Stuart and his fab team completed for us a large downstairs extension which included a reconfiguration of the entire layout to the ground floor, new kitchen and utility. In addition they also constructed a large garden room with toilet and kitchen facilities.
The work completed was to a very high standard, the main team and all contractors were highly professional and friendly. The quote was reasonable, the costs transparent and above all I could trust each and every one in my home. Communication was excellent and forthcoming, with Stuart advising me on what's been done, what's to come and any arising issues.
Almost two years on and I absolutely love the build and have recommended ST Contracts Ltd to my friends, as I'm glad they were recommended to me.
The work completed was to a very high standard, the main team and all contractors were highly professional and friendly. The quote was reasonable, the costs transparent and above all I could trust each and every one in my home. Communication was excellent and forthcoming, with Stuart advising me on what's been done, what's to come and any arising issues.
Almost two years on and I absolutely love the build and have recommended ST Contracts Ltd to my friends, as I'm glad they were recommended to me.
Chan
Dec 06, 2024
I recently hired ST Contracts for a garage and loft conversion, and I couldn't be happier with the results. From start to finish, the team was professional, efficient, and attentive to every detail. They transformed both spaces into beautiful, functional areas, and the skylights they installed in the loft have made the room feel bright and spacious. The craftsmanship is just FANTASTIC, and they kept me updated throughout the project, making sure everything was done to a high standard. I would highly recommend ST Contracts for any renovation work – a fantastic team who deliver excellent results at a great price!!!!
Bb Exclusive Fabrications Ltd
Nov 22, 2024
We’ve recently used ST contracts for some work that tied in with an installation of ours, and we can’t fault them. Their work and customer service is second to none. Definitely adding them to our contact list!
Ally Sampson
Sep 09, 2024
We are very happy with our garage conversion. We got a quick and fair quote and the work started quickly. They have been very professional, with good communication throughout, kept everything clean and tidy and completed the work in a very timely manner. We are extremely pleased with the end result and would highly recommend S.T Contracts.
Fran Barnett
Sep 02, 2024
Stuart and his team put bi fold doors in my house, also converted a garage into a room. Absolutely excellent work, while the building was going on everything was kept neat and tidy. Brilliant team, nothing was too much trouble and everything was completed to the highest standard.
My friends have also had Stuart and his team in and are all as happy and so pleased with all building work.
I would highly recommend this company, the absolute best.
My friends have also had Stuart and his team in and are all as happy and so pleased with all building work.
I would highly recommend this company, the absolute best.
Sorrelle Harper
Jul 12, 2024
Stuart and his team have now completed several projects for us, namely a substantial renovation of our house, the building of an outdoor kitchen and the demolition and rebuilding of a yard.
They are excellent at communication, reasonably priced, friendly and have met every deadline. Skills, it seems, that are as rare as hen’s teeth in the construction world! I have since recommended Stuart and the team on multiple occasions.
They are excellent at communication, reasonably priced, friendly and have met every deadline. Skills, it seems, that are as rare as hen’s teeth in the construction world! I have since recommended Stuart and the team on multiple occasions.