Cheapest builders to convert your basement in GU1
Range from the cheapest Basement conversion £35880 (Cortec Ltd based in GU7) to the dearest Basement conversion £55500 (Websites 4 Trades based in GU7).
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 GU1 by posting a job with HaMuch and we will send it to extension builders in GU1.
Estimates for common extension builder jobs in GU1;
| Job | Estimate |
| Underpinning a house | £17544 |
| Build a two storey extension | £88067 |
| Build a timber frame extension | £26044 |
| Install a swimming pool | £81044 |
| Cost to build a single storey extension | £50890 |
| Cost to build a side return extension | £38000 |
| Install an RSJ | £2244 |
| Build an outbuilding | £10044 |
| Build a mansard loft conversion | £52044 |
| Cost of a loft conversion | £34167 |
| Build a kitchen extension | £42044 |
| Build a hip to gable loft conversion | £42044 |
| Build a granny annexe | £87044 |
| Build a garden office | £10044 |
| Convert a garage | £16044 |
| Build a new garage | £18544 |
| Build a flat roof extension | £22044 |
| Build a dormer loft conversion | £42044 |
| Lay a concrete foundation | £6294 |
| Convert a bungalow loft | £29044 |
| Basement conversion cost | £38000 |