Cost of underpinning in HP9
If your home needs underpinning due to subsidence, it can be a worrying time for you. Luckily, specialist builders can help you underpin your house and stabilise it for years to come. But how much will it cost in HP9?
Underpinning ranges from £17332 (Steve Knight Construction based in HP15) to £17740 (OLI HOME IMPROVEMENTS based in SL9), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in HP9 by posting a job with HaMuch and we will send it to extension builders in HP9.
Estimates for common extension builder jobs in HP9;
| Job | Estimate |
| Underpinning a house | £17424 |
| Build a two storey extension | £87887 |
| Build a timber frame extension | £25924 |
| Install a swimming pool | £80924 |
| Cost to build a single storey extension | £48490 |
| Cost to build a side return extension | £36650 |
| Install an RSJ | £2124 |
| Build an outbuilding | £9924 |
| Build a mansard loft conversion | £51924 |
| Cost of a loft conversion | £33042 |
| Build a kitchen extension | £41924 |
| Build a hip to gable loft conversion | £41924 |
| Build a granny annexe | £86924 |
| Build a garden office | £9924 |
| Convert a garage | £15924 |
| Build a new garage | £18424 |
| Build a flat roof extension | £21924 |
| Build a dormer loft conversion | £41924 |
| Lay a concrete foundation | £6174 |
| Convert a bungalow loft | £28924 |
| Basement conversion cost | £36650 |