Range from the cheapest single storey extension £39,000 (R.W. Lewis & Sons based in CF31) to the dearest single storey extension £45,880 (J.S. Builders based in CF39).
Comparing extension builders estimates for fitting a downstairs toilet gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build a single storey extension in CF40 by posting a job with HaMuch and we will send it to extension builders in CF40.

| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Rhondda | £27 | £183 |
| Single Storey Extension near Rhondda, Cynon, Taff | £27 | £183 |
| Single Storey Extension near Pontypridd | £29 | £184 |
| Single Storey Extension near Aberdare | £28 | £186 |
| Single Storey Extension near Church Village | £30 | £188 |
| Single Storey Extension near Maesteg | £32 | £239 |
| Single Storey Extension near Merthyr Tydfil | £28 | £187 |
| Single Storey Extension near Bridgend | £27 | £170 |
| Single Storey Extension near Caerphilly | £29 | £181 |
| Single Storey Extension near Pyle | £30 | £234 |