Range from the cheapest single storey extension £38800 (DRAGON CONSTRUCTION T/A based in SY25) to the dearest single storey extension £40400 (SP Coupland Ltd based in SY25).
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 Wales by posting a job with HaMuch and we will send it to extension builders in Wales.
Job | Estimate |
Underpinning a house | £16975 |
Build a two storey extension | £87212 |
Build a timber frame extension | £25475 |
Install a swimming pool | £80475 |
Cost to build a single storey extension | £39493 |
Cost to build a side return extension | £31590 |
Install an RSJ | £1675 |
Build an outbuilding | £9475 |
Build a mansard loft conversion | £51475 |
Cost of a loft conversion | £28825 |
Build a kitchen extension | £41475 |
Build a hip to gable loft conversion | £41475 |
Build a granny annexe | £86475 |
Build a garden office | £9475 |
Convert a garage | £15475 |
Build a new garage | £17975 |
Build a flat roof extension | £21475 |
Build a dormer loft conversion | £41475 |
Lay a concrete foundation | £5725 |
Convert a bungalow loft | £28475 |
Basement conversion cost | £31590 |
Business name | Single storey extension cost |
---|---|
DRAGON CONSTRUCTION T/A, , SY25 | £38800 |
SP Coupland Ltd, Sir Ceredigion, SY25 | £40400 |
Cherry Build Limited, Llandrindod Wells, LD1 | £39280 |