Cheapest builders to convert your basement in Watford
Range from the cheapest Basement conversion £28500 (Garston Decor based in WD24) to the dearest Basement conversion £60000 (Design & Build Builders Ltd based in WD18).
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 Watford by posting a job with HaMuch and we will send it to extension builders in Watford.
Estimates for common extension builder jobs in Watford;
| Job | Estimate |
| Underpinning a house | £17474 |
| Build a two storey extension | £87961 |
| Build a timber frame extension | £25974 |
| Install a swimming pool | £80974 |
| Cost to build a single storey extension | £49475 |
| Cost to build a side return extension | £37205 |
| Install an RSJ | £2174 |
| Build an outbuilding | £9974 |
| Build a mansard loft conversion | £51974 |
| Cost of a loft conversion | £33504 |
| Build a kitchen extension | £41974 |
| Build a hip to gable loft conversion | £41974 |
| Build a granny annexe | £86974 |
| Build a garden office | £9974 |
| Convert a garage | £15974 |
| Build a new garage | £18474 |
| Build a flat roof extension | £21974 |
| Build a dormer loft conversion | £41974 |
| Lay a concrete foundation | £6224 |
| Convert a bungalow loft | £28974 |
| Basement conversion cost | £37205 |