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About Us
We are your local builders based in the heart of St Albans, Hertfordshire, trusted by homeowners across the county for delivering exceptional workmanship and reliable, high‑quality building services. Stag Builders of Hertfordshire specialises in garage conversions, house extensions and full property renovations, helping clients in St Albans, Harpenden, Hertford, Welwyn Garden City, Radlett, Kings Langley, Watford, Hatfield, Stevenage and Hitchin transform their homes with practical, beautifully finished living spaces.
As proud members of the Federation of Master Builders, we undergo regular inspections and consistently meet the highest industry standards. Our building services include kitchen installations, kitchen extensions, garage conversions, bathroom renovations, roofing, patios, full house renovations and, most notably, bespoke home extensions. Property extensions and renovations across Hertfordshire form a major part of our work, and our team is passionate about delivering durable, long‑lasting results that add real value to every home.
Stag Builders of Hertfordshire Limited is recognised for its strong brand identity, dependable service and commitment to excellence — making us one of the most trusted and reputable building companies in Hertfordshire.
- House Renovations
- Property Extensions
- Garden Rooms
- Bathrooms/Kitchens
- Garage Conversions
- Carpentry
- Plastering
- New Builds
- Roofing
- External Rendering
- Electrical
- Plumbing & Gas
- Patios
- Domestic and commercial projects undertaken.
Our team of highly skilled tradespeople covers every aspect of the construction industry, ensuring reliable, professional workmanship on projects of all sizes across Hertfordshire.
To see more information about our services, visit: https://www.stagbuildershertfordshire.co.uk/
