Range from the cheapest single storey extension £35600 (ScotRuss Builders based in G75) to the dearest single storey extension £46640 (JB All Trades Ltd based in G45).
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 Castlemilk by posting a job with HaMuch and we will send it to extension builders in Castlemilk.
25/09/2024
Single storey extension
Job | Estimate |
Underpinning a house | £17250 |
Build a two storey extension | £87626 |
Build a timber frame extension | £25750 |
Install a swimming pool | £80750 |
Cost to build a single storey extension | £45008 |
Cost to build a side return extension | £34692 |
Install an RSJ | £1950 |
Build an outbuilding | £9750 |
Build a mansard loft conversion | £51750 |
Cost of a loft conversion | £31410 |
Build a kitchen extension | £41750 |
Build a hip to gable loft conversion | £41750 |
Build a granny annexe | £86750 |
Build a garden office | £9750 |
Convert a garage | £15750 |
Build a new garage | £18250 |
Build a flat roof extension | £21750 |
Build a dormer loft conversion | £41750 |
Lay a concrete foundation | £6000 |
Convert a bungalow loft | £28750 |
Basement conversion cost | £34692 |