From £26,168
Our building services company MCO Building Contractors Ltd has been providing customers throughout West Sussex with professional, trustworthy build...
From £26,224
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £25,912
K. BRAND BUILDING LIMITED are here to help customers who need an Extension Builder in BN45. We offer a competitive rate to complete all your extens...
From £25,752
Experienced extension builder ready to quote for your work. Rock Build Ltd is the best extension builder in BN45. No obligation free quotes and man...
From £25,768
Master builder since 1960 new build and refurb all trades many photo albums to show
From £26,160
Trusted and professional extension builder in BN45. Experienced in all extension buildering work and keeping within budget and on quote. W&S BUILDI...
From £24,016
Ferguson Building Services Limited is an established and experienced local extension builder in BN45. Please contact us for a free, no obligation q...
From £25,904
Fenice Design + Build is an established and experienced local extension builder in BN45. Please contact us for a free, no obligation quote and comp...
From £25,856
Orchard Timberworks is a Brighton based Carpentry and Joinery business, located in the beautiful South Downs. We specialise in custom Carpentry and...
From £26,008
Business CategoriesBathroom Planners and Furnishers, Builders, Building Services, Cabinet Makers, Decking, Flooring Services, Home Improvem...

A timber frame extension built in BN45 typically ranges from £24,016 (Ferguson Building Services Limited based in BN6) to £26,224 (Hewison Jones Renovations LTD based in bn3), 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 BN45 by posting a job with HaMuch and we'll send it to extension builders in BN45.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Timber Frame Extension near Brighton and Hove | £35 | £251 |
| Build A Timber Frame Extension near Brighton | £35 | £251 |
| Build A Timber Frame Extension near Shoreham-by-Sea | £36 | £250 |
| Build A Timber Frame Extension near Burgess Hill | £36 | £240 |
| Build A Timber Frame Extension near Lancing | £37 | £251 |
| Build A Timber Frame Extension near Haywards Heath | £35 | £256 |
| Build A Timber Frame Extension near Worthing | £35 | £251 |
| Build A Timber Frame Extension near Mid Sussex | £35 | £261 |
| Build A Timber Frame Extension near Horsham | £38 | £265 |
| Build A Timber Frame Extension near Rustington | £36 | £246 |
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 - £17,277

Two storey extension - £87,665

Build a timber frame extension - £25,777

Build a swimming pool - £80,777

Single storey extension - £50,536

Side return extension - £38,989

Install an RSJ - £1,977

Outbuilding - £9,777

Build a Mansard loft conversion - £51,777

Loft conversion - £31,658

Build a kitchen extension - £41,777

Hip to gable loft conversion - £41,777

Granny annexe - £86,777

Garden office - £9,777

Convert a Garage - £15,777

Garage - £18,277

Build a flat roof extension - £21,777

Build a dormer loft conversion - £41,777

Concrete foundations - £6,027

Convert a bungalow loft - £28,777

Convert a basement - £34,989