Extension builder estimates (based on hourly rates) to build a single storey extension in Kings Lynn
Range from the cheapest single storey extension £32400 (RM contractors based in Nr20) to the dearest single storey extension £48400 (Nu-build Norfolk Ltd based in PE34).
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 Kings Lynn by posting a job with HaMuch and we will send it to extension builders in Kings Lynn.
Estimates for common extension builder jobs in Kings Lynn;
| Job | Estimate |
| Underpinning a house | £17120 |
| Build a two storey extension | £87430 |
| Build a timber frame extension | £25620 |
| Install a swimming pool | £80620 |
| Cost to build a single storey extension | £42397 |
| Cost to build a side return extension | £33223 |
| Install an RSJ | £1820 |
| Build an outbuilding | £9620 |
| Build a mansard loft conversion | £51620 |
| Cost of a loft conversion | £30186 |
| Build a kitchen extension | £41620 |
| Build a hip to gable loft conversion | £41620 |
| Build a granny annexe | £86620 |
| Build a garden office | £9620 |
| Convert a garage | £15620 |
| Build a new garage | £18120 |
| Build a flat roof extension | £21620 |
| Build a dormer loft conversion | £41620 |
| Lay a concrete foundation | £5870 |
| Convert a bungalow loft | £28620 |
| Basement conversion cost | £33223 |