Business Details
17 Years
experience
Local Builders You Can Trust
We operate S.T Contracts Ltd as a trusted, family-led building contractor serving Watford, St Albans and the wider Hertfordshire region. Our focus is on delivering well-managed residential building projects that combine technical skill with attentive customer service. Since establishing the business, we have remained committed to handling all works internally, enabling us to maintain accountability at every stage. Our recognition by respected industry organisations, together with robust insurance and formal contractual processes, provides reassurance from the outset of any project.The services we offer include home extensions, loft and garage conversions, and purpose-built garden rooms designed for year-round use. Each commission is approached with careful planning, clear communication and a dedicated team that remains in place from start to finish. We supply free quotes and visual designs to support informed decision-making, while our local knowledge ensures designs align with both property character and planning expectations. On completion, we conduct a full snagging inspection and stand behind our work with a six-month guarantee. Our reputation has been established through consistent results and long-term client relationships.
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
- 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.
Payment methods
- Bank transfers
Services
Garden Rooms
We build made-to-measure garden rooms tailored to how you intend to use the space, from offices and gyms to studios and guest areas. Our team delivers a complete service, covering groundwork, structure, insulation, and internal finishing to your specification. Pricing is transparent, with one point of contact and no unexpected extras, and we can assist with planning requirements.
Home Renovations
Our renovation service is centred on delivering carefully planned and professionally executed home improvements. We handle all elements of the build, coordinating trades and schedules to maintain quality and efficiency. With decades of experience, we offer clients a complete, end-to-end solution that ensures confidence, clarity and consistently high standards throughout.
Building Services
We specialise in delivering high-quality building services supported by extensive industry experience. Our team manages projects comprehensively, from early design stages to completion, ensuring regulatory compliance at every step. Whether undertaking refurbishments, conversions or new builds, we maintain a structured process that achieves durable outcomes and consistent standards.
House Extensions
We specialise in bespoke house extensions, offering a fully managed service from initial survey to completion. Our experienced team coordinates design, planning applications and construction while maintaining strict building regulation compliance. Clients benefit from clear project management, dependable workmanship and an extension that adds practical, lasting living space.
Garage Conversions
We deliver bespoke garage conversions, transforming underused spaces into practical and well-finished living areas. With over two decades of building experience, we manage every stage of the process, ensuring full compliance with building regulations. Our work is completed to a high standard, providing durable, comfortable spaces tailored to your needs.
Solar Panels
Our solar panel installation service supports both households and commercial premises with reliable, compliant energy systems. We provide complimentary surveys, detailed designs and professional installation by an accredited team. With recognised trade memberships and full warranties, we deliver structured projects focused on quality and accountability.
Reviews (5)
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!
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
Sorrelle Harper
Jul 12, 2024
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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 hens teeth in the construction world! I have since recommended Stuart and the team on multiple occasions.
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