From £21,528
Need an Extension Builder in CF42? A POWELL CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £21,576
L E JONES BUILDER is an established extension buildering business in CF42. We come highly recommended and provide competitive quotes for your work....

A flat roof extension ranges from the cheapest of £21,528 (A POWELL CONSTRUCTION LTD based in CF44) to the dearest of £21,576 (L E JONES BUILDER based in CF43), 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 CF42 by posting a job with HaMuch. We'll send it to extension builders in CF42.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Rhondda, Cynon, Taff | £31 | £209 |
| Build A Flat Roof Extension near Aberdare | £32 | £212 |
| Build A Flat Roof Extension near Rhondda | £31 | £206 |
| Build A Flat Roof Extension near Maesteg | £38 | £283 |
| Build A Flat Roof Extension near Merthyr Tydfil | £33 | £220 |
| Build A Flat Roof Extension near Pontypridd | £33 | £211 |
| Build A Flat Roof Extension near Neath Port Talbot | £31 | £224 |
| Build A Flat Roof Extension near Church Village | £34 | £214 |
| Build A Flat Roof Extension near Bridgend | £32 | £200 |
| Build A Flat Roof Extension near Pyle | £34 | £262 |
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 - £17,052

Two storey extension - £87,328

Build a timber frame extension - £25,552

Build a swimming pool - £80,552

Single storey extension - £46,040

Side return extension - £36,460

Install an RSJ - £1,752

Outbuilding - £9,552

Build a Mansard loft conversion - £51,552

Loft conversion - £29,550

Build a kitchen extension - £41,552

Hip to gable loft conversion - £41,552

Granny annexe - £86,552

Garden office - £9,552

Convert a Garage - £15,552

Garage - £18,052

Build a flat roof extension - £21,552

Build a dormer loft conversion - £41,552

Concrete foundations - £5,802

Convert a bungalow loft - £28,552

Convert a basement - £32,460