Extension builder estimates (based on hourly rates) to build a single storey extension in W13
Range from the cheapest single storey extension £42000 (CHURCHWOOD MANAGEMENT LTD based in W13) to the dearest single storey extension £48880 (Allen & Allen based in W13).
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 W13 by posting a job with HaMuch and we will send it to extension builders in W13.
Estimates for common extension builder jobs in W13;
| Job | Estimate |
| Underpinning a house | £17377 |
| Build a two storey extension | £87815 |
| Build a timber frame extension | £25877 |
| Install a swimming pool | £80877 |
| Cost to build a single storey extension | £47536 |
| Cost to build a side return extension | £36114 |
| Install an RSJ | £2077 |
| Build an outbuilding | £9877 |
| Build a mansard loft conversion | £51877 |
| Cost of a loft conversion | £32595 |
| Build a kitchen extension | £41877 |
| Build a hip to gable loft conversion | £41877 |
| Build a granny annexe | £86877 |
| Build a garden office | £9877 |
| Convert a garage | £15877 |
| Build a new garage | £18377 |
| Build a flat roof extension | £21877 |
| Build a dormer loft conversion | £41877 |
| Lay a concrete foundation | £6127 |
| Convert a bungalow loft | £28877 |
| Basement conversion cost | £36114 |