Range from the cheapest £37 per hour and £230 per day (We Love Build - Three Arches based in W1J) to the dearest £39 per hour and £243 per day (Elv8 Interiors based in W1B).
Comparing hourly and daily rates of Extension Builder's 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 - Click 'Get quotes' and describe your job and we will send it to your local extension builders for FREE.
See table for all Extension Builder rates in W1S
Originally established in 1996 ELV8 has set the highest standards within the building industry, achieving success by winning numerous gold a...
We are a Design and Build Company, based in London.We focus on super prime and luxury residential renovations in and around London and inter...
Job details | Estimate |
Underpinning a house | £1720 |
Build a two storey extension | £5732 |
Build a timber frame extension | £5732 |
Install a swimming pool | £3439 |
Cost to build a single storey extension | £45855 |
Cost to build a side return extension | £52733 |
Install an RSJ | £1003 |
Build an outbuilding | £2293 |
Build a mansard loft conversion | £11464 |
Cost of a loft conversion | £32098 |
Build a kitchen extension | £11464 |
Build a hip to gable loft conversion | £8598 |
Build a granny annexe | £5732 |
Build a garden office | £2293 |
Convert a garage | £1146 |
Build a flat roof extension | £1949 |
Build a dormer loft conversion | £2293 |
Lay a concrete foundation | £2293 |
Convert a bungalow loft | £3439 |
Basement conversion cost | £32098 |