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Design and Build Companies in Westminster, Greater London

Design and Build companies are your one stop shop for both the design and construction for your project.

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Westminster / 25 mi
Design & Build
1 – 15 of 1,499 professionals
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1,499 Professionals

Featured Reviews for Design and Build Companies in Westminster, Greater London

Beams Renovation
Design and Build Companies in Westminster, Greater London
Average rating: 5 out of 5 stars14 September 2023
“Such a simple process! My Beams planner put together a detailed proposal for my project. It really helped to understand the cost of my renovation up front. I’ve received a few quotes that were hard to understand. My Beams quote included everything (labour, materials, and project management). Would highly recommend.”
Plus Rooms
Design and Build Companies in Westminster, Greater London
Average rating: 4 out of 5 stars12 May 2015
“Living through a kitchen extension on a terraced London house isn't fun. We both work full-time and have two children at school so returning at the end of each day to the property once works had commenced could be a little stressful; but PlusRooms protected our downstairs areas, created a temporary kitchen for us and were really considerate of the fact we were living through the works. They project managed the whole thing right from design, costing, adjustments, planning, build scheduling, (prompting us what to buy and when), right through the build - and we couldn't be more delighted with our new space. Living through building works is unpleasant but was made less so with Robbie and James' support and professionalism. We had the odd snagging that needed resolving at the end of the job, which you would always expect, so we are more than happy to recommend PlusRooms and may be using them again next year!”
Valor Collective
Design and Build Companies in Westminster, Greater London
Average rating: 5 out of 5 stars7 November 2025
“Fantastic experience working with this team — professional, reliable, and the results were beautiful. Highly recommend.”
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Design and Build Company FAQs
In short, a design and build company consists of all stages of the construction process, from design to build, in one place. A design-build firm works under one contract with the project owner to complete both design and build steps of the project.

They will take on the responsibility of planning the project, drawing up the designs, costing, sourcing the building materials and supplies, building the structure, installing any permanent features and possibly advising on the interior design of your home; all while consulting you every step of the way.
Speed and cost. Hiring a design & build company for your Westminster project means that the whole process from start to finish will be quicker, as all stages of the project will be handled by one company. This also saves time finding additional companies to complete certain stages of the project and potential back & forth between builders and designers to discuss the plans.

By using a design and build company in Westminster for your project, you will also be given an all-in-one quote for the design and construction of your project. This is often cheaper than hiring separate professionals for each step of your project.
You can find a local design-build company in Westminster with Houzz in two ways:

  • Answer a few questions about your project to get matched with a local professional for free. Enter your postcode above to get started.
  • Browse through our list of the best design-build companies in Westminster where you can find their profiles, reviews and photos of past work.

    • After choosing either option, you can reach out to the design-build professionals you want to discuss your project. You can request and compare quotes before hiring the right design and build company for you.
    There are 1,499 Design-Build professionals, registered on Houzz in Westminster.
    Why Hire Design & Build on Houzz?
    1,499Local Pros on Houzz Who Serve Westminster, Greater London
    95,000+Total Number of Reviews Left by Homeowners
    Planning a renovation project or building your own home can mean involving a lot of different companies, contractors and professionals, making everything a bit of a struggle to stay on top of. One way to cut out a couple of middlemen is to use Westminster design and build companies to build and design a house or a few rooms; handling your project from design and planning right through to construction. Hiring a design and build firm in Westminster will make it so much easier if you plan to build your own house from scratch as they can work with you through every step of the process, without having to switch from architect, to designer, to builder, to stylist and back again. Design and build contracts have become more and more common as homeowners look to find more efficient ways of building custom homes, and you can find a whole list of design and build contractors in Westminster near you right here on Houzz if you’d like to find out more about hiring a design and build company.