Garden and Building Solutions is an established and experienced local extension builder in NN10. Please contact us for a free, no obligation quote ...
From £22,040
Experienced extension builder ready to quote for your work. KMR CONSTRUCTION is the best extension builder in NN10. No obligation free quotes and m...
From £21,696
Experienced extension builder ready to quote for your work. L & D CONSTRUCTION SERVICE is the best extension builder in NN10. No obligation free qu...
From £21,648
Matt Shirley
Need to find an Extension Builder near you for all your extension buildering work?
Shirley Ceramics provides a local, trusted extension bui...

A flat roof extension ranges from the cheapest of £21,624 (Garden and Building Solutions based in NN10) to the dearest of £22,040 (KMR CONSTRUCTION based in NN10), 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 NN10 by posting a job with HaMuch. We'll send it to extension builders in NN10.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Rushden | £34 | £231 |
| Build A Flat Roof Extension near Wellingborough | £39 | £251 |
| Build A Flat Roof Extension near Kettering | £34 | £237 |
| Build A Flat Roof Extension near Bedford | £45 | £278 |
| Build A Flat Roof Extension near South Bedfordshire | £45 | £278 |
| Build A Flat Roof Extension near Kempston | £44 | £273 |
| Build A Flat Roof Extension near Northampton | £35 | £239 |
| Build A Flat Roof Extension near St Neots | £51 | £318 |
| Build A Flat Roof Extension near Corby | £30 | £214 |
| Build A Flat Roof Extension near Huntingdonshire | £36 | £290 |
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 - £17,252

Two storey extension - £87,628

Build a timber frame extension - £25,752

Build a swimming pool - £80,752

Single storey extension - £50,040

Side return extension - £38,710

Install an RSJ - £1,952

Outbuilding - £9,752

Build a Mansard loft conversion - £51,752

Loft conversion - £31,425

Build a kitchen extension - £41,752

Hip to gable loft conversion - £41,752

Granny annexe - £86,752

Garden office - £9,752

Convert a Garage - £15,752

Garage - £18,252

Build a flat roof extension - £21,752

Build a dormer loft conversion - £41,752

Concrete foundations - £6,002

Convert a bungalow loft - £28,752

Convert a basement - £34,710