Range from the cheapest single storey extension £42000 (Calin Constantine Construction based in BH8) to the dearest single storey extension £46800 (All Build Developments Limited based in BH1).
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 Dorset by posting a job with HaMuch and we will send it to extension builders in Dorset.
Job | Estimate |
Underpinning a house | £17275 |
Build a two storey extension | £87663 |
Build a timber frame extension | £25775 |
Install a swimming pool | £80775 |
Cost to build a single storey extension | £45501 |
Cost to build a side return extension | £34969 |
Install an RSJ | £1975 |
Build an outbuilding | £9775 |
Build a mansard loft conversion | £51775 |
Cost of a loft conversion | £31641 |
Build a kitchen extension | £41775 |
Build a hip to gable loft conversion | £41775 |
Build a granny annexe | £86775 |
Build a garden office | £9775 |
Convert a garage | £15775 |
Build a new garage | £18275 |
Build a flat roof extension | £21775 |
Build a dormer loft conversion | £41775 |
Lay a concrete foundation | £6025 |
Convert a bungalow loft | £28775 |
Basement conversion cost | £34969 |