Range from the cheapest single storey extension £29200 (R i daniels based in SA14) to the dearest single storey extension £42480 (Summitt Properties based in SA18).
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 SA20 by posting a job with HaMuch and we will send it to extension builders in SA20.
Job | Estimate |
Underpinning a house | £16957 |
Build a two storey extension | £87186 |
Build a timber frame extension | £25457 |
Install a swimming pool | £80457 |
Cost to build a single storey extension | £39141 |
Cost to build a side return extension | £31392 |
Install an RSJ | £1657 |
Build an outbuilding | £9457 |
Build a mansard loft conversion | £51457 |
Cost of a loft conversion | £28660 |
Build a kitchen extension | £41457 |
Build a hip to gable loft conversion | £41457 |
Build a granny annexe | £86457 |
Build a garden office | £9457 |
Convert a garage | £15457 |
Build a new garage | £17957 |
Build a flat roof extension | £21457 |
Build a dormer loft conversion | £41457 |
Lay a concrete foundation | £5707 |
Convert a bungalow loft | £28457 |
Basement conversion cost | £31392 |
Business name | Single storey extension cost |
---|---|
SC CONSTRUCTION, , SA19 | £40400 |
S H PHILLIPS BUILDING CONTRACT, , SA18 | £41040 |
Lippiatt Construction, Carmarthen, SA40 | £38800 |
CR BUILDING & MAINTENANCE SERV, , SA18 | £40880 |
The Home Extension Company Ltd, Carmel, SA14 | £34000 |
Summitt Properties, Carmarthenshire, SA18 | £42480 |
R i daniels, Llanelli, SA14 | £29200 |
DEREK REES BUILDING MAINTENANC, , LD3 | £38800 |
GAB BUILDING CONTRACTORS LTD, , SA18 | £41040 |
R E Davies, , SA18 | £40240 |
Amman Services Ltd, , SA18 | £40240 |
OSBORNE BUILDING SERVICES, , SA18 | £40400 |
DRAGON CONSTRUCTION T/A, , SY25 | £38800 |
SP Coupland Ltd, Sir Ceredigion, SY25 | £40400 |
ANTIS CONSTRUCTION, , SA14 | £40400 |