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Need an Extension Builder in DN31? A F Beckett has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
From building preservation to extensions in Grimsby, we have the skills and experience you need. We undertake a very wide selection of wor...

A flat roof extension ranges from the cheapest of £21,776 (A F Beckett based in DN32) to the dearest of £22,040 (Paul Wallis Building & Joinery Ltd based in DN32), 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 DN31 by posting a job with HaMuch. We'll send it to extension builders in DN31.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Grimsby | £32 | £246 |
| Build A Flat Roof Extension near North East Lincolnshire | £32 | £246 |
| Build A Flat Roof Extension near Cleethorpes | £32 | £246 |
| Build A Flat Roof Extension near Hull | £29 | £223 |
| Build A Flat Roof Extension near Willerby | £29 | £221 |
| Build A Flat Roof Extension near North Lincolnshire | £28 | £216 |
| Build A Flat Roof Extension near East Lindsey | £27 | £198 |
| Build A Flat Roof Extension near Scunthorpe | £26 | £207 |
| Build A Flat Roof Extension near East Riding | £29 | £223 |
| Build A Flat Roof Extension near Beverley | £29 | £223 |
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 - £17,408

Two storey extension - £87,862

Build a timber frame extension - £25,908

Build a swimming pool - £80,908

Single storey extension - £53,160

Side return extension - £40,465

Install an RSJ - £2,108

Outbuilding - £9,908

Build a Mansard loft conversion - £51,908

Loft conversion - £32,888

Build a kitchen extension - £41,908

Hip to gable loft conversion - £41,908

Granny annexe - £86,908

Garden office - £9,908

Convert a Garage - £15,908

Garage - £18,408

Build a flat roof extension - £21,908

Build a dormer loft conversion - £41,908

Concrete foundations - £6,158

Convert a bungalow loft - £28,908

Convert a basement - £36,465