Our Story

​SDM Joinery was formed in early 2003 initially as a partnership, changing to a limited company in October 2004.

The company was founded to continue supplying customers of a local joinery shop that closed down for which the three partners were employees for a combined total of 40 years. Our workshop in Mold, Flintshire is fully equipped with an extensive range of Woodworking Machinery and a spray applied paint finish shop.

Our skilled workforce enables us to produce a wide range of bespoke joinery products including Sliding Sash & Casement Windows, Exterior Feature Doors, Shopfronts, Staircases, Fire Rated Doorsets and Windows and non-standard Mouldings. We also pride ourselves in Conservation Work manufactured in a wide range of timber species to customer specifications.

We strive to offer high quality products and a friendly service. Our combined extensive knowledge of joinery techniques, timber specifications and UK Building Regulations, ensure we are capable of providing a quality service at a competitive price. We work closely and constructively with both our customers and suppliers which means that whatever your budget, we will endeavour to provide a suitable solution.

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We are an Accoya Wood Approved Manufacturer

As an Accoya approved manufacturer we are proud to work with one of the most advanced and sustainable timber products available today. Accoya high performance modified wood is renowned for its exceptional durability, stability, and resistance to rot, making it ideal for sliding sash & casement windows, doors and other exterior joinery projects. Our approval reflects not only our expertise in crafting with this premium material but also our commitment to meeting the highest standards of quality and precision. By combining traditional craftsmanship with innovative materials, we deliver environmentally responsible joinery solutions that are built to last and beautifully finished.

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​​FSC® Certified Products available upon request​

Our company is committed to responsible sourcing and environmental stewardship by offering products that are certified by the Forest Stewardship Council (FSC®) meaning we are able to provide full Chain of Custody to our products if requested. Our certification ensures that the materials we use come from forests managed in a way that preserves biodiversity, supports local communities and maintains ecological balance. By choosing FSC® certified products we not only provide high quality goods to our customers but also contribute to the global effort to combat deforestation and promote sustainable forestry practices. Our dedication to transparency and ethical sourcing reflects our belief that business success should go hand in hand with protecting the planet for future generations.