The Ideal Partner for Property Improvement in Thornbury, Stoke Gifford, Yate & All Surrounding Areas
DJM Masonry & General Building Ltd is an established builder based in Coalpit Heath, South Gloucestershire, serving homeowners, businesses, and site managers in Thornbury, Yate, Stoke Gifford, and the surrounding areas. As a family-run building company, we offer a complete, well-organised service built around experience, communication, and trust.
Our work covers all aspects of construction and external improvements, including:
- Full House Renovations
- Structural Knock-throughs
- Garage Conversions
- House Extensions
- Loft Conversions
- Kitchen Refurbishments
- New Bathrooms
- Carpentry & Joinery
- Groundworks & Hard Landscaping
With over 30 years in the trade, our team includes qualified stone masons, bricklayers, carpenters, and electricians. We are happy to assist with early design ideas, advise on planning requirements, and help arrange an architect or structural engineer where needed. The aim is simple: remove uncertainty, keep things clear, and deliver work that stands the test of time.


Expertly Delivered Extensions & Conversions
We are frequently asked to deliver garage conversions and house extensions in and around Thornbury, Yate, and Stoke Gifford that feel like a natural part of the home rather than an add-on. Getting this right takes more than just building skills. It requires an understanding of structure, flow, and how spaces are genuinely used.
As a builder providing a start-to-finish service, we handle groundwork, structural alterations, insulation, internal finishes, and coordination between trades. This joined-up approach helps projects run smoothly and allows clients to enjoy the process rather than manage it.
Our Work
Our work reflects the care we put into planning and execution. From small alterations to large-scale builds, each project is approached with the same attention to detail and respect for the property. Why not get in touch to talk through our portfolio and get some inspiration? We’re always happy to help you develop ideas and shape your dream improvement.

Specialist Stonework from a Qualified Mason
A defining part of our work is specialist stonework, particularly on older and character properties around Thornbury, Yate, and Stoke Gifford, where traditional skills matter. As qualified stone masons, we understand how historic materials behave and how to repair, adapt, and extend them sympathetically. This experience is invaluable for complex property renovations and broader renovations, where original features must be preserved while improving usability.
Clients choose our building company not only for technical ability, but also for how we manage projects:
- Early design and layout guidance
- Straightforward advice on planning permission
- Access to trusted architects and engineers
- Fully qualified, in-house trades
- Reliable local suppliers
- Clear scheduling and site coordination
- Careful work within occupied properties
- Consistent communication throughout
This approach allows us to deliver both traditional and modern projects with the same level of care.
Contact Us
DJM Masonry & General Building Ltd provides carefully planned house extensions, high-quality garage conversions, and detailed property renovations across Thornbury, Yate, and Stoke Gifford. Our experience also includes stonework on period properties, modern builds, and full-home renovations, as well as well-executed loft conversions. Supported by trusted suppliers including Kellaway, Travis Perkins, and Yate Building Plastics, we offer a reliable, personal service. To discuss your project, call 07909 632563.