We have over 30 years’ experience, and have built an established reputation of providing customers professional, trustworthy building services.

We know it can be hard to find a builder that you can rely on. David Douglas Developments has a wealth of experience and is known as one of the best builders throughout Herts and Beds. We pride ourselves on providing a professional, caring, and high-quality service and always meet, or in many cases, exceed our customers’ needs and expectations.

Each contractor that works for David Douglas Developments is fully qualified and insured and delivers on timekeeping, quality of work and value. We specialise in Garage Conversions, and Kitchen Fit-Outs, and offer a full range of building services, from major rebuilds to smaller jobs such as masonry repairs, including: New Builds, Alterations, Extensions & Conversions, Brickwork, Concrete, Plastering & Screeding, Tiling, Painting & Decorating, Kitchens & Bathrooms, Roofing Services, Re-pointing, Septic Tanks, Excavation Services, Soakaways, Foundations, External Works and Drainage.

If you are trying to find a builder near you, why not give us a call? Our friendly, professional team will be happy to talk through your needs and give you a free, no-obligation quote.

Garage Conversions






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Please complete the form below, or call us on 07954414865

See What Our Customers Are Saying

February 2022 Laura Woods
"I actually cannot put into words what a fantastic, honest and knowledgeable builder Dave is! We started our dream extension with another cowboy builder who left us in a dangerous and horrendous state, an unfinished extension and the task of having to find another builder. We didn’t know where to go or who to trust and then we met Dave! Throughout the whole time Dave and Ryan have been here they had a completely different work ethic to the previous guy, so clean, punctual and tidy! Dave and his team have turned a nightmare into an absolute dream! He took over the whole project, dealt with the building inspector, sorting out problem after problem and has finished our extension to such a high standard and finished the work beyond our expectations. I cannot recommend this guy enough, we are now getting Dave to come back (when he has time) to complete a conservatory roof replacement. If your thinking of having any work done, you won’t be disappointed!"
June 2022 Jack Self
"Great reliable builders wicked team friendly cost efficient highly skilled in what they do. Would highly recommend"
May 2022 Penni
"I cannot recommend Dave and the team enough. From start to finish Dave was honest, flexible and kept me up to date with progress all the way through. The team we lovely and the quality of work was amazing; you can tell they pride themselves in what they do. Their electrician was also second to none as our old house had some interesting wiring. Absolutely fantastic and super pleased with the work."