Durham Design

Custom-designed extensions that seamlessly integrate with existing properties. Using premium materials and expert craftsmanship, we create functional living spaces that enhance property value. Projects include full architectural planning, structural engineering, and complete build management from concept to completion.

Luxury orangeries combining traditional elegance with modern energy efficiency. Featuring solid roofs with glazed lanterns, thermally efficient frames, and custom finishes. Ideal for creating all-weather living spaces that connect indoor and outdoor environments while maintaining year-round comfort.

Tailored kitchen designs incorporating high-quality cabinetry, worktops, and integrated appliances. Our specialists create functional layouts optimised for cooking, dining, and socialising. Services include 3D visualisation, space planning, and full installation with minimal disruption to household routines.

Energy-efficient garden rooms with insulated walls and roofs, available in contemporary anthracite grey finishes. Designed for multiple uses including home offices, fitness studios, or entertainment areas. Compliant with building regulations and featuring 30-year durability specifications.

Complete bathroom transformations from traditional to contemporary styles. Includes wet room installations, bespoke storage solutions, and full plumbing services. Our designers create functional, accessible spaces with premium fixtures and finishes to suit individual lifestyles.

With over 25 years in home improvements, Kevin oversees all construction projects. Known for meticulous attention to detail, he ensures perfect colour matching and structural integrity in every extension. Clients praise his problem-solving skills and hands-on approach to project management.

Co-founder Jill manages client relations and design consultations. Her expertise in space optimisation helps transform awkward layouts into functional living areas. She personally supervises kitchen and bathroom projects, ensuring seamless integration with existing home environments.

Yes, we provide full architectural design services including 3D visualisations and planning permission assistance for all extension projects.

Our conservatories feature thermally efficient frames and glass, with optional solid roof upgrades to ensure year-round usability.

We advise on planning requirements and can manage applications for garden rooms and larger extensions needing approval.

All work includes a 10-year insurance-backed guarantee, with Fensa certification for window and door installations.

Our team specialises in matching traditional architectural styles while incorporating modern energy-efficient materials and techniques.

Most kitchen projects complete within 4-6 weeks, including bespoke manufacturing and professional fitting with minimal disruption.

I could say so much, both Jill with her design experience & the high quality standard that Kevin delivered I can only say that they have created a Dream family space by building a orangery & kitchen. Kevin is the best at everything, all he done was spot on. Nothing a problem. Jill & Kevin are totally honest from day one. they work so well together, they make a total dream team. thank you for the life changing experience that you have given us, it means so much

Historically we have always to some extent ended up disappointed with contractors. Some OK others left wanting. We needed a new roof on our 16 year old conservatory. We chose Durham Designs and an Ultra Frame 380 Warm Roof rather than the lower cost more popular Guardian Roof. We were immediately impressed by Jill and Kevin's no nonsense informative and knowledgeable approach. The work has been amazing beyond any reasonable expectation.

All their contractors to a man have been impressive both in their attitude and quality of work, we now have a fantastic Warm Roof. In our opinion the cheapest quote is never the best option. This sort of attention to detail doesn't come cheap however, Durham Design are a company that you can trust to deliver the highest possible quality product. We are actively looking for more work that they can do for us and to me, that says it all.