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Trusted and professional extension builder in Denver. Experienced in all extension buildering work and keeping within budget and on quote. ANDREW R...
Trusted and professional extension builder in Denver. Experienced in all extension buildering work and keeping within budget and on quote. WEST NOR...
From £21,744
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,872
Oakenshield Construction Ltd is an established and experienced local extension builder in Denver. Please contact us for a free, no obligation quote...

A flat roof extension ranges from the cheapest of £21,720 (WEST NORFOLK CONSTRUCTION LTD based in PE33) to the dearest of £21,960 (ANDREW RUST BUILDING CONTRACTO based in PE34), 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 Denver by posting a job with HaMuch. We'll send it to extension builders in Denver.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Wisbech | £34 | £255 |
| Build A Flat Roof Extension near King's Lynn | £33 | £254 |
| Build A Flat Roof Extension near Kings Lynn & West Norfolk | £31 | £238 |
| Build A Flat Roof Extension near Ely | £40 | £279 |
| Build A Flat Roof Extension near Breckland | £28 | £248 |
| Build A Flat Roof Extension near Thetford | £42 | £277 |
| Build A Flat Roof Extension near Dereham | £25 | £203 |
| Build A Flat Roof Extension near Spalding | £32 | £238 |
| Build A Flat Roof Extension near Peterborough | £40 | £281 |
| Build A Flat Roof Extension near Bury St Edmunds | £34 | £251 |
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 - £17,324

Two storey extension - £87,736

Build a timber frame extension - £25,824

Build a swimming pool - £80,824

Single storey extension - £51,480

Side return extension - £39,520

Install an RSJ - £2,024

Outbuilding - £9,824

Build a Mansard loft conversion - £51,824

Loft conversion - £32,100

Build a kitchen extension - £41,824

Hip to gable loft conversion - £41,824

Granny annexe - £86,824

Garden office - £9,824

Convert a Garage - £15,824

Garage - £18,324

Build a flat roof extension - £21,824

Build a dormer loft conversion - £41,824

Concrete foundations - £6,074

Convert a bungalow loft - £28,824

Convert a basement - £35,520