Range from the cheapest single storey extension £39,960 (LAKELAND CONSTRUCTION SER LTD based in DG11) to the dearest single storey extension £40,600 (TOMS JOINERY based in DG2).
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 DG1 by posting a job with HaMuch and we will send it to extension builders in DG1.

| Business name | Single storey extension cost |
|---|---|
| TOMS JOINERY, Dumfries , DG2 | £40,600 |
| LAKELAND CONSTRUCTION SER LTD, Lockerbie, DG11 | £39,960 |
| L I P CONSTRUCTION LTD, Lockerbie, DG11 | £40,600 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Dumfries | £18 | £140 |
| Single Storey Extension near Dumfries & Galloway | £18 | £140 |
| Single Storey Extension near Carlisle | £21 | £175 |