Relax... you have found a reliable extension builder in Hammersmith. M & A UK Ltd is a friendly and reliable company based in Hammersmith who consi...
Building Vision London Ltd is a trusted extension builder serving customers in Hammersmith and the surrounding area. Contact us to today to get a c...
Need to find an Extension Builder near you for all your extension buildering work?
AJ Wells provides a local, trusted extension buildering ...
AG-Renovation Ltd is a trusted extension builder serving customers in Hammersmith and the surrounding area. Contact us to today to get a competitiv...
Jonathan Rimmer
Experienced extension builder ready to quote for your work. Mr is the best extension builder in Hammersmith. No obligation free quotes and many hap...
Newpark Construction are here to help customers who need an Extension Builder in Hammersmith. We offer a competitive rate to complete all your exte...
At Ferdas Design & Build Ltd we have been fitting bespoke bathrooms since 2013. We pride ourselves on being the go-to bathroom fitters for discerni...
Tomasz Pedowicz
Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...
London Construction is an established and experienced local extension builder in Hammersmith. Please contact us for a free, no obligation quote and...
Red Box are a Fulham-based building and decorating business who work in West and Southwest London, and who specialise in fine interior renovations,...

Garden offices range from the cheapest of £10,096 (Mr based in NW10) to the dearest of £10,504 (Ferdas Design & Build Ltd based in W3), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in Hammersmith by posting a job with HaMuch. We'll send it to extension builders in Hammersmith.
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 - £17,798

Two storey extension - £88,448

Build a timber frame extension - £26,298

Build a swimming pool - £81,298

Single storey extension - £60,968

Side return extension - £44,857

Install an RSJ - £2,498

Outbuilding - £10,298

Build a Mansard loft conversion - £52,298

Loft conversion - £36,548

Build a kitchen extension - £42,298

Hip to gable loft conversion - £42,298

Granny annexe - £87,298

Garden office - £10,298

Convert a Garage - £16,298

Garage - £18,798

Build a flat roof extension - £22,298

Build a dormer loft conversion - £42,298

Concrete foundations - £6,548

Convert a bungalow loft - £29,298

Convert a basement - £40,857