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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 

Your local London Loft Conversion, House Extensions and Basement Conversion Specialists 

To arrange a quotation please call us on

020 7205 4222

Builders GB are specialists at every type

of Loft Conversion, House Extension and

Basement Conversion in London.

Builders GB is London’s local Design & Build company. Every loft conversion, basement conversion and home extension is fully designed to your exact specification, helping you to make the most out of the space available from your home.

  • For more information on a London Loft Conversion please go to the Loft Conversion page where you can access a wealth of information about every type of Loft Conversion
  • More information on House Extensions in London can be accessed on the House Extensions page where you’ll find all there is to know about all the different types of House Extensions in London
  • London Basement Conversion information can be viewed on the Basement Conversion page where you can access all the information you need about a Basement Conversion in London


Builders GB offer a complete Design and Build service which includes;


  • Professional design and architectural services
  • Project Consultation on your new Loft ConversionHouse Extension or Basement Conversion
  • All council liaisons are handled on your behalf


Builders GB provide a very reliable, fast and friendly service which is competitively priced and includes everything you need from start to finish.

All staff are fully qualified professionals in every area of construction and safety. Qualifications are regularly updated to ensure that safer and most importantly stronger construction methods are always used.

The levels of safety are well above those required by the Building Control departments, this is the number one priority at Builders GB London.

Builders GB is an environmentally friendly construction company which only uses products, waste management systems and greener building techniques that help to lessen the impact caused by the construction industry within London.

Builders GB

Call for an unbeatable quotation,

020 7205 4222


Builders GB, 65 Grosvenor Street, London, W1K 3JH, 020 7205 4222 –