From £21,992
Trusted and professional extension builder in Steyning. Experienced in all extension buildering work and keeping within budget and on quote. Salama...
From £22,192
Woodmans Construction are here to help customers who need an Extension Builder in Steyning. We offer a competitive rate to complete all your extens...
From £21,816
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,112
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,112
Diligence Builders are a skilled professional construction team who can undertake a wide range of building services from new builds and extensions ...
From £21,832
G C Builders is an established and experienced local extension builder in Steyning. Please contact us for a free, no obligation quote and competiti...
From £22,136
At PBS Build it Better we have been providing building services to customers in Brighton & Hove and throughout Sussex for over 40 years. As experie...
From £21,936
ACF Carpentry Ltd is an established and experienced local extension builder in Steyning. Please contact us for a free, no obligation quote and comp...
From £21,800
Trusted and professional extension builder in Steyning. Experienced in all extension buildering work and keeping within budget and on quote. Nutshe...
From £22,016
F&N DESIGN & BUILD LTD are here to help customers who need an Extension Builder in Steyning. We offer a competitive rate to complete all your exten...

A flat roof extension ranges from the cheapest of £21,800 (Nutshell Construction based in BN14) to the dearest of £22,192 (Woodmans Construction based in BN43), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Steyning by posting a job with HaMuch. We'll send it to extension builders in Steyning.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Lancing | £37 | £251 |
| Build A Flat Roof Extension near Shoreham-by-Sea | £36 | £250 |
| Build A Flat Roof Extension near Worthing | £35 | £251 |
| Build A Flat Roof Extension near Rustington | £36 | £246 |
| Build A Flat Roof Extension near Brighton | £35 | £251 |
| Build A Flat Roof Extension near Brighton and Hove | £35 | £251 |
| Build A Flat Roof Extension near Burgess Hill | £36 | £240 |
| Build A Flat Roof Extension near Littlehampton | £35 | £244 |
| Build A Flat Roof Extension near Horsham | £38 | £265 |
| Build A Flat Roof Extension near Arun | £35 | £241 |
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 - £17,494

Two storey extension - £87,992

Build a timber frame extension - £25,994

Build a swimming pool - £80,994

Single storey extension - £54,888

Side return extension - £41,437

Install an RSJ - £2,194

Outbuilding - £9,994

Build a Mansard loft conversion - £51,994

Loft conversion - £33,698

Build a kitchen extension - £41,994

Hip to gable loft conversion - £41,994

Granny annexe - £86,994

Garden office - £9,994

Convert a Garage - £15,994

Garage - £18,494

Build a flat roof extension - £21,994

Build a dormer loft conversion - £41,994

Concrete foundations - £6,244

Convert a bungalow loft - £28,994

Convert a basement - £37,437