Varda
Need an Extension Builder in Heathrow? VA Structures has been helping local clients (10 mile radius) with their extension buildering jobs for many ...
Bhupinder Singh
Trusted and professional extension builder in Heathrow. Experienced in all extension buildering work and keeping within budget and on quote. Elegan...
Need an Extension Builder in Heathrow? ZNS Construction has been helping local clients (10 mile radius) with their extension buildering jobs for ma...
Trusted and professional extension builder in Heathrow. Experienced in all extension buildering work and keeping within budget and on quote. SME Bu...
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Relax... you have found a reliable extension builder in Heathrow. RODOF Ltd is a friendly and reliable company based in Heathrow who consider no jo...
Nirvair Builders is an established extension buildering business in Heathrow. We come highly recommended and provide competitive quotes for your wo...
Need to find an Extension Builder near you for all your extension buildering work?
WONGS BUILDERS LTD provides a local, trusted extension b...
Need to find an Extension Builder near you for all your extension buildering work?
AMG Construction Services provides a local, trusted exte...
Experienced extension builder ready to quote for your work. Tej Builders is the best extension builder in Heathrow. No obligation free quotes and m...

Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in Heathrow by posting your job to extension builders in Heathrow.
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,690

Two storey extension - £88,284

Build a timber frame extension - £26,190

Build a swimming pool - £81,190

Single storey extension - £58,792

Side return extension - £43,633

Install an RSJ - £2,390

Outbuilding - £10,190

Build a Mansard loft conversion - £52,190

Loft conversion - £35,528

Build a kitchen extension - £42,190

Hip to gable loft conversion - £42,190

Granny annexe - £87,190

Garden office - £10,190

Convert a Garage - £16,190

Garage - £18,690

Build a flat roof extension - £22,190

Build a dormer loft conversion - £42,190

Concrete foundations - £6,440

Convert a bungalow loft - £29,190

Convert a basement - £39,633