Cheapest builders to convert your basement in Southampton
Range from the cheapest Basement conversion £28500 (ANDYWORKS & son Ltd based in SO50) to the dearest Basement conversion £36600 (A W PAVING LTD based in SO31).
Comparing extension builders estimates for a Basement conversion 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 for the cost to convert a basement in Southampton by posting a job with HaMuch and we will send it to extension builders in Southampton.
Estimates for common extension builder jobs in Southampton;
| Job | Estimate |
| Underpinning a house | £17211 |
| Build a two storey extension | £87567 |
| Build a timber frame extension | £25711 |
| Install a swimming pool | £80711 |
| Cost to build a single storey extension | £44221 |
| Cost to build a side return extension | £34249 |
| Install an RSJ | £1911 |
| Build an outbuilding | £9711 |
| Build a mansard loft conversion | £51711 |
| Cost of a loft conversion | £31041 |
| Build a kitchen extension | £41711 |
| Build a hip to gable loft conversion | £41711 |
| Build a granny annexe | £86711 |
| Build a garden office | £9711 |
| Convert a garage | £15711 |
| Build a flat roof extension | £21711 |
| Build a dormer loft conversion | £41711 |
| Lay a concrete foundation | £5961 |
| Convert a bungalow loft | £28711 |
| Basement conversion cost | £34249 |