From £21,896
Experienced extension builder ready to quote for your work. Park home developments is the best extension builder in PE9. No obligation free quotes ...
From £21,600
Need to find an Extension Builder near you for all your extension buildering work?
QKS Limited provides a local, trusted extension builderi...
From £22,344
LMS Construction are a reputable company of builders, established over 15 years ago. Since then, we have been helping customers throughout the Camb...

A flat roof extension ranges from the cheapest of £21,600 (QKS Limited based in PE9) to the dearest of £22,344 (LMS Construction based in PE8), 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 PE9 by posting a job with HaMuch. We'll send it to extension builders in PE9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Stamford | £35 | £248 |
| Build A Flat Roof Extension near Peterborough | £40 | £281 |
| Build A Flat Roof Extension near Corby | £30 | £214 |
| Build A Flat Roof Extension near Spalding | £32 | £238 |
| Build A Flat Roof Extension near Melton Mowbray | £31 | £222 |
| Build A Flat Roof Extension near Grantham | £38 | £228 |
| Build A Flat Roof Extension near Kettering | £34 | £237 |
| Build A Flat Roof Extension near Huntingdonshire | £36 | £290 |
| Build A Flat Roof Extension near Market Harborough | £31 | £217 |
| Build A Flat Roof Extension near Hamilton | £29 | £213 |
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 - £17,447

Two storey extension - £87,920

Build a timber frame extension - £25,947

Build a swimming pool - £80,947

Single storey extension - £53,933

Side return extension - £40,900

Install an RSJ - £2,147

Outbuilding - £9,947

Build a Mansard loft conversion - £51,947

Loft conversion - £33,250

Build a kitchen extension - £41,947

Hip to gable loft conversion - £41,947

Granny annexe - £86,947

Garden office - £9,947

Convert a Garage - £15,947

Garage - £18,447

Build a flat roof extension - £21,947

Build a dormer loft conversion - £41,947

Concrete foundations - £6,197

Convert a bungalow loft - £28,947

Convert a basement - £36,900