Concrete foundation costs in B20
Concrete foundations keep your extension, conservatory or other new building stable for years to come. It's important to hire qualified extension builders to lay your foundations, but how much will it cost in B20?
Concrete foundations range from the £5778 (D&J Advanced Builders based in B44) to £7050 (TG Building Services & Son based in B71) in B20.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in B20 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
Estimates for common extension builder jobs in B20;
| Job | Estimate |
| Underpinning a house | £17150 |
| Build a two storey extension | £87474 |
| Build a timber frame extension | £25650 |
| Install a swimming pool | £80650 |
| Cost to build a single storey extension | £42992 |
| Cost to build a side return extension | £33558 |
| Install an RSJ | £1850 |
| Build an outbuilding | £9650 |
| Build a mansard loft conversion | £51650 |
| Cost of a loft conversion | £30465 |
| Build a kitchen extension | £41650 |
| Build a hip to gable loft conversion | £41650 |
| Build a granny annexe | £86650 |
| Build a garden office | £9650 |
| Convert a garage | £15650 |
| Build a new garage | £18150 |
| Build a flat roof extension | £21650 |
| Build a dormer loft conversion | £41650 |
| Lay a concrete foundation | £5900 |
| Convert a bungalow loft | £28650 |
| Basement conversion cost | £33558 |