Range from the cheapest single storey extension £31,000 (John Broadley Building Services based in YO25) to the dearest single storey extension £51,960 (MARK STRINGER BUILDING LIMITED based in YO21).
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 Seamer by posting a job with HaMuch and we will send it to extension builders in Seamer.

| Business name | Single storey extension cost |
|---|---|
| JMF PROPERTY MAINTENANCE LTD, SCARBOROUGH, YO12 | £47,000 |
| RJM Brickwork, Filey, YO14 | £48,600 |
| NORCON CONSTRUCTION LTD, Filey, YO14 | £48,600 |
| Roof Force Roofing Specialists Limited, 104 St. Johns Street,, Bridlington, Engl, YO16 | £49,400 |
| Room at the Top Loft Conversions, Bridlington, YO16 | £48,120 |
| MARK STRINGER BUILDING LIMITED, Whitby, YO21 | £51,960 |
| D Barker Building and Joinery Ltd, Malton, YO17 | £46,680 |
| A DUKES BUILDERS LIMITED, Malton, YO17 | £45,080 |
| John Broadley Building Services, Driffield, YO25 | £31,000 |
| Manor Farm Contractors, East Riding Of Yorkshire, YO25 | £47,480 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Scarborough | £24 | £190 |
| Single Storey Extension near Bridlington | £28 | £211 |
| Single Storey Extension near Beverley | £24 | £187 |
| Single Storey Extension near East Riding | £24 | £187 |
| Single Storey Extension near Redcar & Cleveland | £35 | £230 |
| Single Storey Extension near York | £26 | £196 |
| Single Storey Extension near Redcar | £34 | £223 |
| Single Storey Extension near Eston | £35 | £215 |