Welcome to
J.M.B Design & Build Ltd,
where quality comes first.
We design, build and create beautiful spaces within your home.
J.M.B Design & Build Ltd is a building firm based in Hertfordshire run by James Boulton. James and his team of qualified craftsmen have more than 25 years of experience in the industry.
We offer professional and experienced help with your projects from concept with our in-house Architectural Planning and Design team that work with regulatory specialists, build with our qualified team of experienced craftsmen offering a bespoke service to completion with our top finish decorators. Helping to match your vision, needs and budget.
Get your free consultation
Tell us about your project and we'll get back to you with a no-obligation quote. Most enquiries are answered within 24 hours.
Award Winning Construction Company
Operating in Hertfordshire, London and surrounding counties
New Builds
Previous new build project locations include Barnet, Brookmans Park, Radlett, Shenley and Whetstone.
Loft Conversions
Previous loft conversion project locations include Barnet, Potters Bar, Kings Langley and St Albans.
House Extensions
Previous house extension project locations include
Harpenden, Southgate and Welham Green.
Home Renovations
Previous house renovation project locations include
Colney Heath, London Colney and Ongar.
'A very professional service. James and the team transformed our bungalow into exactly what we had hoped for and all within the initial fee scope.
Delighted with the outcome. We’ve recommended JMB to friends!'
CLIENT: Gavin O'Donavan
LOCATION: Potters Bar
J.M.B Design & Build Ltd is a full service building construction company dedicated to building and improving residential and commercial structures according to client needs and desires.
We specialise in transforming your home into what you always wanted. Be it a loft conversion, extension or a new build from scratch. You can be rest assured that at JMB, quality, precision and excellence comes first.
Based in Hertfordshire but also covering London and Essex, the team at JMB is ready to give your space whatever updates it requires.
Just give us a call or enquire online today and we’ll get back to you as soon as we can with a quote.
Contact us today to see how we can help create your dream space.
