Range from the cheapest single storey extension £40,600 (S A Davies Sustainable Construction Limited based in CH7) to the dearest single storey extension £55,000 (David Williams General Builder & Maintenance based in LL11).
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 Corwen by posting a job with HaMuch and we will send it to extension builders in Corwen.

| Business name | Single storey extension cost |
|---|---|
| L & J BUILDERS, Ruthin, LL15 | £45,560 |
| Kevin Davies Building Contractors, Oswestry , SY10 | £45,400 |
| DMS Building Services, Wrexham, LL14 | £53,400 |
| READ CONSTRUCTION HOLDINGS LTD, Wrexham, LL11 | £46,040 |
| Dtechfm , Mold , CH7 | £44,920 |
| Guest & Roberts, Wrexham, LL11 | £47,000 |
| David Williams General Builder & Maintenance, Wrexham, LL11 | £55,000 |
| Fistral ltd, Unit F4, Plot 2, Bank Top Ind Est, St Martin?s, SY10 | £46,360 |
| Your Home Made Ltd, Shropshire, SY11 | £48,760 |
| M Davies & Sons, Wrexham, LL11 | £47,480 |
| Oikos Construction Ltd, Wrexham, LL11 | £47,480 |
| S A Davies Sustainable Construction Limited, Caerwys, CH7 | £40,600 |
| Mike Griffiths Builders, Abenbury, LL13 | £47,320 |
| CAG CONSTRUCTION LTD, Abenbury, LL13 | £46,360 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Wrexham | £29 | £220 |
| Single Storey Extension near Flintshire | £28 | £191 |
| Single Storey Extension near Wrexham Maelor | £28 | £217 |
| Single Storey Extension near Vale Royal | £30 | £212 |
| Single Storey Extension near Hawarden | £28 | £196 |
| Single Storey Extension near Connah's Quay | £28 | £195 |
| Single Storey Extension near Rhyl | £24 | £178 |
| Single Storey Extension near Prestatyn | £24 | £179 |
| Single Storey Extension near Colwyn Bay | £26 | £212 |
| Single Storey Extension near Chester | £28 | £193 |