Range from the cheapest single storey extension £24400 (Garden landscapes landscape based in CF35) to the dearest single storey extension £48400 (OLYNPAIDD M & E 2008 LTD based in CF62).
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 Llantwit Major by posting a job with HaMuch and we will send it to extension builders in Llantwit Major.
Job | Estimate |
Underpinning a house | £16990 |
Build a two storey extension | £87235 |
Build a timber frame extension | £25490 |
Install a swimming pool | £80490 |
Cost to build a single storey extension | £39798 |
Cost to build a side return extension | £31762 |
Install an RSJ | £1690 |
Build an outbuilding | £9490 |
Build a mansard loft conversion | £51490 |
Cost of a loft conversion | £28968 |
Build a kitchen extension | £41490 |
Build a hip to gable loft conversion | £41490 |
Build a granny annexe | £86490 |
Build a garden office | £9490 |
Convert a garage | £15490 |
Build a new garage | £17990 |
Build a flat roof extension | £21490 |
Build a dormer loft conversion | £41490 |
Lay a concrete foundation | £5740 |
Convert a bungalow loft | £28490 |
Basement conversion cost | £31762 |