From £21,976
Relax... you have found a reliable extension builder in Carnaby. Roof Force Roofing Specialists Limited is a friendly and reliable company based in...
From £22,056
Trusted and professional extension builder in Carnaby. Experienced in all extension buildering work and keeping within budget and on quote. Room at...
From £21,728
NORCON CONSTRUCTION LTD is an established and experienced local extension builder in Carnaby. Please contact us for a free, no obligation quote and...
From £22,280
We are a local company family run been trading 20 years we have a very good comments & feedback for good work
From £22,048
Experienced extension builder ready to quote for your work. RJM Brickwork is the best extension builder in Carnaby. No obligation free quotes and m...
From £21,776
Need to find an Extension Builder near you for all your extension buildering work?
THOMPSON BUILDERS provides a local, trusted extension bu...
From £21,952
Manor Farm Contractors is a trusted extension builder serving customers in Carnaby and the surrounding area. Contact us to today to get a competiti...

A flat roof extension ranges from the cheapest of £21,728 (NORCON CONSTRUCTION LTD based in YO14) to the dearest of £22,280 (J S ROOFING & GUTTERING LIMITED based in YO25), 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 Carnaby by posting a job with HaMuch. We'll send it to extension builders in Carnaby.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Bridlington | £32 | £252 |
| Build A Flat Roof Extension near Scarborough | £29 | £234 |
| Build A Flat Roof Extension near Beverley | £29 | £223 |
| Build A Flat Roof Extension near East Riding | £29 | £223 |
| Build A Flat Roof Extension near Hull | £29 | £223 |
| Build A Flat Roof Extension near Willerby | £29 | £221 |
| Build A Flat Roof Extension near Goole | £26 | £217 |
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 - £17,474

Two storey extension - £87,961

Build a timber frame extension - £25,974

Build a swimming pool - £80,974

Single storey extension - £54,474

Side return extension - £41,204

Install an RSJ - £2,174

Outbuilding - £9,974

Build a Mansard loft conversion - £51,974

Loft conversion - £33,504

Build a kitchen extension - £41,974

Hip to gable loft conversion - £41,974

Granny annexe - £86,974

Garden office - £9,974

Convert a Garage - £15,974

Garage - £18,474

Build a flat roof extension - £21,974

Build a dormer loft conversion - £41,974

Concrete foundations - £6,224

Convert a bungalow loft - £28,974

Convert a basement - £37,204