Range from the cheapest single storey extension £36,920 (Gainzy Builders based in SA62) to the dearest single storey extension £47,000 (N Morgans & Son Ltd based in SA33).
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 Llanfallteg by posting a job with HaMuch and we will send it to extension builders in Llanfallteg.

| Business name | Single storey extension cost |
|---|---|
| N Morgans & Son Ltd, Carmarthen, SA33 | £47,000 |
| F & E Construction, Meidrim, SA33 | £45,400 |
| Max Sandford & San, Carmarthen, SA31 | £45,240 |
| D&O Construction Ltd, Nolton, SA62 | £39,640 |
| Norton Construction, Cardigan, Ceredigion, sa43 | £43,000 |
| G.I Davies & Son, Llanegwad, SA32 | £46,200 |
| Shane Griffiths & Son Ltd, Llandysul, SA44 | £47,000 |
| Graham & Co Home Improvement Specialists, Cefn Sidan, SA16 | £46,040 |
| Gripp Construction, Pembroke, SA71 | £39,000 |
| Gainzy Builders, Nolton, SA62 | £36,920 |
| Lawtons Property Services, Milford Haven, SA73 | £37,400 |
| WW BUILDERS , Cefn Sidan, SA16 | £45,720 |
| Glance Building Services, Cefn Sidan, SA16 | £45,720 |
| D.A Fisher General Builders, Llanelli Rural, SA15 | £45,880 |
| Tigerson Ltd, Burry Port, SA16 | £39,000 |
| Colin Cole - Total Renovations, Cefn Sidan, SA16 | £46,040 |
| Haven Commercial Contractors Ltd, Cefn Sidan, SA16 | £46,040 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Carmarthenshire | £24 | £191 |
| Single Storey Extension near Carmarthen | £24 | £191 |
| Single Storey Extension near Pembrokeshire | £17 | £143 |
| Single Storey Extension near Milford Haven | £15 | £134 |
| Single Storey Extension near Llanelli | £25 | £196 |
| Single Storey Extension near Gorseinon | £25 | £196 |
| Single Storey Extension near Swansea | £25 | £197 |