Range from the cheapest single storey extension £43,160 (Helmside Building Services based in LA9) to the dearest single storey extension £55,000 (ROJ.house based in LA9).
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 Kirkby Stephen by posting a job with HaMuch and we will send it to extension builders in Kirkby Stephen.

| Business name | Single storey extension cost |
|---|---|
| NEWBY BUILDING & CONSTRUCTION, Shap, CA10 | £43,320 |
| ROJ.house, Cumbria, LA9 | £55,000 |
| STEPHEN FELLER (BUILDER), Sedgwick, LA9 | £46,360 |
| Absolute Build, Kendal, LA9 | £47,000 |
| CHRIS ELLWOOD BUILDING CONTR, Sedgwick, LA9 | £45,880 |
| Helmside Building Services, Kendal, LA9 | £43,160 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Kendal | £24 | £200 |
| Single Storey Extension near Bishop Auckland | £38 | £221 |
| Single Storey Extension near Consett | £28 | £202 |
| Single Storey Extension near Spennymoor | £37 | £223 |
| Single Storey Extension near Morecambe | £22 | £186 |
| Single Storey Extension near Lancaster | £22 | £185 |
| Single Storey Extension near Carlisle | £21 | £175 |
| Single Storey Extension near Stanley | £29 | £206 |