Extension builder estimates (based on hourly rates) to build a single storey extension in Gorseinon
Range from the cheapest single storey extension £34000 (Tigerson Ltd based in SA16) to the dearest single storey extension £58000 (KD Construction based in SA15).
Comparing extension builders estimates for fitting a downstairs toilet 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 to build a single storey extension in Gorseinon by posting a job with HaMuch and we will send it to extension builders in Gorseinon.
Estimates for common extension builder jobs in Gorseinon;
| Job | Estimate |
| Underpinning a house | £17064 |
| Build a two storey extension | £87345 |
| Build a timber frame extension | £25564 |
| Install a swimming pool | £80564 |
| Cost to build a single storey extension | £41270 |
| Cost to build a side return extension | £32590 |
| Install an RSJ | £1764 |
| Build an outbuilding | £9564 |
| Build a mansard loft conversion | £51564 |
| Cost of a loft conversion | £29658 |
| Build a kitchen extension | £41564 |
| Build a hip to gable loft conversion | £41564 |
| Build a granny annexe | £86564 |
| Build a garden office | £9564 |
| Convert a garage | £15564 |
| Build a new garage | £18064 |
| Build a flat roof extension | £21564 |
| Build a dormer loft conversion | £41564 |
| Lay a concrete foundation | £5814 |
| Convert a bungalow loft | £28564 |
| Basement conversion cost | £32590 |