Business Details
17 Years
experience
Local Builders You Can Trust
We run S.T Contracts Ltd as a family-led building contractor dedicated to delivering dependable, high-quality construction services in Watford and nearby areas. Our background spans more than twenty years within the industry, allowing us to approach each project with practical knowledge and careful planning. By retaining all trades within our company, we provide clients with a single point of responsibility and a clear, organised build process. Our affiliations with recognised trade associations, alongside full insurance and vetted staff, support our commitment to professional standards.Our core services include house extensions, loft and garage conversions, and the construction of insulated garden rooms suitable for year-round use. Each project is designed to integrate seamlessly with the existing property while meeting the client’s functional requirements. We offer free quotations and 3D designs to clarify expectations before work begins, followed by clearly documented agreements. Upon completion, we carry out a detailed snagging process and provide a six-month guarantee on workmanship. Our business continues to be built on local knowledge, consistent delivery and strong client recommendations.
Services
Garden Rooms
Renovations
Solar Panels
Schools
Conversions/Extensions
Garage Conversions
Loft Conversions
House Extensions
Barn Conversions
Served areas
- St Albans, Radlett, Harpenden, Watford, Borehamwood, Bushey, Rickmansworth, Hemel Hempstead, Aldenham, Abbots Langley, Kings Langley, Potters Bar, Chorleywood, Berkhamsted, Hatfield
Details
- Year established: 2009
- Licensed
- Insured
Highlights and features
- We have over 50 years of combined experience in construction and renovations.
- Free 3D design visualisations for all projects.
- Fully insured with comprehensive public and employer liability coverage.
- Six-month follow-up guarantee on all workmanship.
- All trades in-house with a dedicated team for every project.
Associations and certifications
- Federation of Master Builders
- Guild of Master Craftsmen
Payment methods
- Bank transfers
What people say
Professional team
High-quality work
Excellent communication
On-time delivery
Creative solutions
Services
Garden Rooms
We design and construct fully bespoke garden rooms from the ground up, creating weather-tight, fully insulated spaces built to last. With decades of building expertise, we provide clear pricing with no hidden costs and manage the work from foundations to final finishes. We can include electrics, plumbing and heating, while supporting planning and building compliance throughout.
Home Renovations
We provide comprehensive home renovation services designed to meet individual requirements. From early design support to final detailing, our experienced team manages the full scope of works. As an established, family-run company, we are committed to dependable service, clear communication and delivering renovations that meet both practical and aesthetic expectations.
Building Services
Our building services are designed to provide dependable outcomes through careful planning, skilled workmanship and clear management. With over two decades of experience, we oversee every stage of construction, from design support to final finishes. We complete residential and commercial projects with full compliance, delivering lasting results through an efficient and controlled process.
House Extensions
Our business delivers custom house extensions supported by extensive industry experience and structured project management. We handle the entire process, including design development, planning support and construction works. Each project is completed with full regulatory compliance, careful coordination and consistent attention to detail from start through to final handover.
Garage Conversions
Our team provides a comprehensive garage conversion service, turning unused areas into valuable living space. With a proven background in residential construction, we handle structural work, services and finishes efficiently. Each conversion meets required building standards and is delivered with workmanship intended to stand the test of time.
Solar Panels
Our business provides end-to-end solar panel installation, combining technical expertise with transparent project management. Each installation is supported by a free assessment, accurate system sizing and certified components. We prioritise consistent communication, regulatory compliance and high installation standards to ensure dependable, long-term performance.
Questions
What areas do S.T. Contracts serve?
We operate in Watford, Radlett, St Albans, and surrounding areas within a 20-mile radius.
Are your tradespeople qualified and insured?
All our tradespeople are fully qualified, DBS-checked, and covered by comprehensive public and employer liability insurance.
Do you offer project management services?
Yes, we provide end-to-end project management, including design, planning permissions, and compliance with building regulations.
What accreditations do you hold?
We are members of the Federation of Master Builders and certified by the Guild of Master Craftsmen.
Can you handle both residential and commercial projects?
Yes, we specialise in both sectors, offering tailored solutions for homes, schools, offices, and retail spaces.
What guarantees do you offer?
We provide a six-month follow-up guarantee on all workmanship and a comprehensive snagging process before completion.
Reviews (6)
Chan
Dec 06, 2024
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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
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Weve recently used ST contracts for some work that tied in with an installation of ours, and we cant fault them. Their work and customer service is second to none. Definitely adding them to our contact list!
Tommy Floyd
Nov 17, 2024
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ST Contracts recently installed solar panels and built a bespoke garden room for us, and were absolutely delighted with the outcome. The team was professional, knowledgeable, and always kept us informed throughout the process. The solar panels have already started reducing our energy bills, and the garden room is now our favourite space beautifully designed and finished to the highest standard. Their attention to detail and commitment to quality really stood out. We highly recommend ST Contracts for anyone looking for reliable, top-quality workmanship.
Joanna Majewski
Oct 14, 2024
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Stuart and the team were great from start to finish . They have done full kitchen refurb for a client of mine . They followed my designs to perfection . Happy client happy me . Will use for future projects
Rebecca Sharp
Aug 07, 2024
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Highly recommend.fantastic service from start to end. Absolutely over the moon with the work we had done
Aimee Vaughan
May 25, 2024
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had an extension put on my house, stuart was very respectful polite and even had banta which made it easy for us to get along with him, he done an amazing job would 100% recommend