Extension builder estimates (based on hourly rates) to build a single storey extension in Walton-on-thames
Range from the cheapest single storey extension £47120 (Coopers of Surrey Ltd based in KT12) to the dearest single storey extension £52240 (DITTON CONSTRUCTION LIMITED based in KT12).
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 Walton-on-thames by posting a job with HaMuch and we will send it to extension builders in Walton-on-thames.
Estimates for common extension builder jobs in Walton-on-thames;
| Job | Estimate |
| Underpinning a house | £17417 |
| Build a two storey extension | £87876 |
| Build a timber frame extension | £25917 |
| Install a swimming pool | £80917 |
| Cost to build a single storey extension | £48349 |
| Cost to build a side return extension | £36571 |
| Install an RSJ | £2117 |
| Build an outbuilding | £9917 |
| Build a mansard loft conversion | £51917 |
| Cost of a loft conversion | £32976 |
| Build a kitchen extension | £41917 |
| Build a hip to gable loft conversion | £41917 |
| Build a granny annexe | £86917 |
| Build a garden office | £9917 |
| Convert a garage | £15917 |
| Build a new garage | £18417 |
| Build a flat roof extension | £21917 |
| Build a dormer loft conversion | £41917 |
| Lay a concrete foundation | £6167 |
| Convert a bungalow loft | £28917 |
| Basement conversion cost | £36571 |