Range from the cheapest single storey extension £34000 (Complete Refurbishment Service based in RG12) to the dearest single storey extension £152080 (HEATHHILL DEVELOPMENTS LTD based in RG45).
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 Blackwater by posting a job with HaMuch and we will send it to extension builders in Blackwater.
Job | Estimate |
Underpinning a house | £17553 |
Build a two storey extension | £88079 |
Build a timber frame extension | £26053 |
Install a swimming pool | £81053 |
Cost to build a single storey extension | £51056 |
Cost to build a side return extension | £38094 |
Install an RSJ | £2253 |
Build an outbuilding | £10053 |
Build a mansard loft conversion | £52053 |
Cost of a loft conversion | £34245 |
Build a kitchen extension | £42053 |
Build a hip to gable loft conversion | £42053 |
Build a granny annexe | £87053 |
Build a garden office | £10053 |
Convert a garage | £16053 |
Build a new garage | £18553 |
Build a flat roof extension | £22053 |
Build a dormer loft conversion | £42053 |
Lay a concrete foundation | £6303 |
Convert a bungalow loft | £29053 |
Basement conversion cost | £38094 |