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Loft conversions

Loft Conversions

The Loft Conversion London team are the best Loft Conversion Specialists in the industry. Loft Conversions in London are the solution for growing families and people looking to add quick and easy space to their properties. A Loft Conversion can be completed within just a few weeks



The House Extension London Team are excellent at creating all types of Extensions. Single or Double Storey, Side Return and the latest designer Glass Extensions are built within weeks. Kitchens, Living areas and Entertainment areas are some of the most popular types of House Extensions

Basement Conversions


The Basement Conversion London Team are specialists in Converting Basements in London. Basement Conversions are now very popular within London recently. A London Basement Conversion can be a new self contained flat a gym a cinema room or an addition of many new rooms to the property

Builders GB London

London’s local Building Company

Loft Conversions – House Extensions – Basement Conversions

To arrange a quotation please call us on

020 7205 4222

Builders GB your local London Builders

Clients are the number priority to us at Builders GB. We make sure that you are completely satisfied with every service we provide. Our projects are built to the highest standards and we use only the best available materials and Guarantee our Projects for a Full 10 Years.

  • Builders GB is one of the only Structural Design and Build specialist construction companies in London
  • We specialise in every type of Major Structural Alteration

If you’re looking for a complete Building Service that includes everything needed to Design and Construct your home then our service is perfect for you.

We are a Specialists Design and Build Company with in house

  • Architects
  • Structural Engineers
  • Design and Building Consultants

The Builders GB service is made for today’s style of living 

A service designed especially for you

  • The service we provide is unparalleled and our after care is package is second to none
  • Builders GB always place clients first and foremost
  • We’ll go out of our way to keep you happy and build your project exactly the way they have pictured
  • The price we quote is the price you pay
  • There is no hidden charges
  • Strength is our main area of expertise and we include our free structural report with every project
  • Projects that involve a tight completion timescale are completed on time

Adding these professionals to the company has given us an opportunity to offer a Building Service that is focused on structural safety, design perfection and build quality. You can expect a structurally safe new addition to your home that is checked and re-checked several times before we sign it off as complete.

The Teams

  • 6 London Loft Conversion teams
  • 5 London House Extension teams
  • 4 Basement Conversions London teams
  • 10 Project Managers
  • 12 Architects, Structural Engineers, Design Consultants and Building Consultants

Click here to arrange a Quotation

Other services

  • Custom made Fitted Furniture and Walk in Wardrobes
  • Fitted Carpets
  • Architectural Glass
  • Plumbing and Electrical services
  • Interior Design
  • Painting and Decorating
  • New Roofs
  • Doors and Window manufacturing

You can expect to receive a large discount on any of the services offered above

Low Price Guarantee

  • All of Builders GB’s services are offered at lower prices than most other Builders because of our good long term business relationships with suppliers and manufacturers throughout the United Kingdom
  • We buy building materials in bulk and keep a huge stock of items needed for every project ourselves
  • This cuts our expenses on building materials by up to 40% and saves time as we control the logistics and deliveries of what is needed for each project
  • All materials needed in any type of project are delivered in advance
  • Whatever savings that are available to Builders GB are passed straight on to our clients


Builders GB – Perfection and Quality



Builders GB

Call for a quotation,

020 7205 4222

Builders GB, 65 Grosvenor Street, London, W1K 3JH, United Kingdom – Phone: 020 7205 4222 Email: