Range from the cheapest £14.5 per hour and £125 per day (J s building & maintenance services limited based in B26) to the dearest £30 per hour and £220 per day (Sanwood based in B73).
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.
yesterday
Extend a semi detached house to rear and add lean-to conservatory to the side infront of main door.
03/10/2024
6 metre extension in rear for new kitchen
03/10/2024
Roof don't need to be raided. Dorma at back with side.
We need Extension Builders like you to help local homeowners with their jobs.
See table for all Extension Builder rates in Brom
| Job details | Estimate |
| Underpinning a house | £1382 |
| Build a two storey extension | £4608 |
| Build a timber frame extension | £4608 |
| Install a swimming pool | £2765 |
| Cost to build a single storey extension | £36864 |
| Cost to build a side return extension | £42393 |
| Install an RSJ | £806 |
| Build an outbuilding | £1843 |
| Build a mansard loft conversion | £9216 |
| Cost of a loft conversion | £25805 |
| Build a kitchen extension | £9216 |
| Build a hip to gable loft conversion | £6912 |
| Build a granny annexe | £4608 |
| Build a garden office | £1843 |
| Convert a garage | £922 |
| Build a new garage | £1843 |
| Build a flat roof extension | £1567 |
| Build a dormer loft conversion | £1843 |
| Lay a concrete foundation | £1843 |
| Convert a bungalow loft | £2765 |
| Basement conversion cost | £25805 |