From £26,400
Starfish Properties is a trusted extension builder serving customers in City Of Westminster and the surrounding area. Contact us to today to get a ...
From £26,088
Dominic Payte - Design & Build is an established extension buildering business in City Of Westminster. We come highly recommended and provide compe...
From £25,944
Hestia Contractors Ltd are here to help customers who need an Extension Builder in City Of Westminster. We offer a competitive rate to complete all...
From £26,040
Independent construction company we have wide range of experience, including newconstruction, renovation, design build and retail stores. We provid...
From £26,232
We are specialised in: demolition services, foundation services, property extension, general bricklaying, internal renovation and configuration, ca...
From £26,432
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £26,064
Experienced extension builder ready to quote for your work. Cornerstone is the best extension builder in City Of Westminster. No obligation free qu...
From £25,984
JK Doors is a trusted extension builder serving customers in City Of Westminster and the surrounding area. Contact us to today to get a competitive...
From £26,288
Grand Phase Ltd is a trusted extension builder serving customers in City Of Westminster and the surrounding area. Contact us to today to get a comp...
From £26,312
Teammax LTD are here to help customers who need an Extension Builder in City Of Westminster. We offer a competitive rate to complete all your exten...

A timber frame extension built in City Of Westminster typically ranges from £25,944 (Hestia Contractors Ltd based in W1B) to £26,432 (Sehem Design based in W1F), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.
Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build a timber frame extension in City Of Westminster by posting a job with HaMuch and we'll send it to extension builders in City Of Westminster.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Timber Frame Extension near London | £45 | £274 |
| Build A Timber Frame Extension near Camden Town | £44 | £277 |
| Build A Timber Frame Extension near Belgravia | £44 | £276 |
| Build A Timber Frame Extension near Chelsea | £44 | £276 |
| Build A Timber Frame Extension near Lambeth | £44 | £275 |
| Build A Timber Frame Extension near Kensington | £44 | £277 |
| Build A Timber Frame Extension near Islington | £45 | £276 |
| Build A Timber Frame Extension near Fulham | £44 | £277 |
| Build A Timber Frame Extension near Camberwell | £44 | £276 |
| Build A Timber Frame Extension near Bethnal Green | £45 | £276 |
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 - £17,678

Two storey extension - £88,268

Build a timber frame extension - £26,178

Build a swimming pool - £81,178

Single storey extension - £58,568

Side return extension - £43,507

Install an RSJ - £2,378

Outbuilding - £10,178

Build a Mansard loft conversion - £52,178

Loft conversion - £35,423

Build a kitchen extension - £42,178

Hip to gable loft conversion - £42,178

Granny annexe - £87,178

Garden office - £10,178

Convert a Garage - £16,178

Garage - £18,678

Build a flat roof extension - £22,178

Build a dormer loft conversion - £42,178

Concrete foundations - £6,428

Convert a bungalow loft - £29,178

Convert a basement - £39,507