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Mathew Rees
Silicone Render System Ltd is a plastering company based in Porthcawl, with over 20 years’ experience in the plastering trade. W...

A flat roof extension ranges from the cheapest of £24,080 (Silicone Rendering Systems Ltd based in CF36) to the dearest of £24,080 (Silicone Rendering Systems Ltd based in CF36), 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 CF36 by posting a job with HaMuch. We'll send it to extension builders in CF36.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Porthcawl | £33 | £252 |
| Build A Flat Roof Extension near Pyle | £34 | £262 |
| Build A Flat Roof Extension near Bridgend | £32 | £200 |
| Build A Flat Roof Extension near Port Talbot | £31 | £227 |
| Build A Flat Roof Extension near Maesteg | £38 | £283 |
| Build A Flat Roof Extension near Vale of Glamorgan | £29 | £217 |
| Build A Flat Roof Extension near Neath | £30 | £225 |
| Build A Flat Roof Extension near Swansea | £29 | £229 |
| Build A Flat Roof Extension near Neath Port Talbot | £31 | £224 |
| Build A Flat Roof Extension near Rhondda | £31 | £206 |
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 - £19,580

Two storey extension - £91,120

Build a timber frame extension - £28,080

Build a swimming pool - £83,080

Single storey extension - £96,600

Side return extension - £64,900

Install an RSJ - £4,280

Outbuilding - £12,080

Build a Mansard loft conversion - £54,080

Loft conversion - £53,250

Build a kitchen extension - £44,080

Hip to gable loft conversion - £44,080

Granny annexe - £89,080

Garden office - £12,080

Convert a Garage - £18,080

Garage - £20,580

Build a flat roof extension - £24,080

Build a dormer loft conversion - £44,080

Concrete foundations - £8,330

Convert a bungalow loft - £31,080

Convert a basement - £60,900