Kettering Mobile Sandblasting are here to help customers who need an Extension Builder in NN16. We offer a competitive rate to complete all your ex...
I Plowright Brickwork is an established extension buildering business in NN16. We come highly recommended and provide competitive quotes for your w...
Relax... you have found a reliable extension builder in NN16. Jogga Construction is a friendly and reliable company based in NN16 who consider no j...
Experienced extension builder ready to quote for your work. GARY TAYLOR BUILDERS LTD is the best extension builder in NN16. No obligation free quot...
From £21,728
Ken Burton
Experienced house builder. Eco structures from Denmark as well as conventional build. Extensions. Bathrooms. Kitchens and support steels when requi...

A flat roof extension ranges from the cheapest of £21,728 (K B CONTRACTORS (IND) LTD based in NN14) to the dearest of £22,056 (Kettering Mobile Sandblasting based in NN16), 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 NN16 by posting a job with HaMuch. We'll send it to extension builders in NN16.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Kettering | £34 | £237 |
| Build A Flat Roof Extension near Corby | £30 | £214 |
| Build A Flat Roof Extension near Wellingborough | £39 | £251 |
| Build A Flat Roof Extension near Market Harborough | £31 | £217 |
| Build A Flat Roof Extension near Rushden | £34 | £231 |
| Build A Flat Roof Extension near Northampton | £35 | £239 |
| Build A Flat Roof Extension near Stamford | £35 | £248 |
| Build A Flat Roof Extension near Huntingdonshire | £36 | £290 |
| Build A Flat Roof Extension near Wigston | £28 | £209 |
| Build A Flat Roof Extension near South Bedfordshire | £45 | £278 |
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 - £17,377

Two storey extension - £87,815

Build a timber frame extension - £25,877

Build a swimming pool - £80,877

Single storey extension - £52,536

Side return extension - £40,114

Install an RSJ - £2,077

Outbuilding - £9,877

Build a Mansard loft conversion - £51,877

Loft conversion - £32,595

Build a kitchen extension - £41,877

Hip to gable loft conversion - £41,877

Granny annexe - £86,877

Garden office - £9,877

Convert a Garage - £15,877

Garage - £18,377

Build a flat roof extension - £21,877

Build a dormer loft conversion - £41,877

Concrete foundations - £6,127

Convert a bungalow loft - £28,877

Convert a basement - £36,114