Range from the cheapest £30 per hour and £200 per day (RCB Group Design & Build based in SE21) to the dearest £50 per hour and £300 per day (Buci builders ltd based in SE27).
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
Reconstructed full House
26/09/2024
Hello can you help me build a LEAN-TO CONSERVATORY/SUN ROOM . My bedroom is very small and need extra space. I would require insulation; a small windows for fresh air and French Doors with a lock. QUOTE PLS: Not sure to build from scratch or buy one to be erected SIZE: 8X6 OR 10X6. THANK YOU.
26/09/2024
Looking for a glass side infill extension for terraced house in Leyton E15; Total area of extension is around 10-11 sqm.
We need Extension Builders like you to help local homeowners with their jobs.
See table for all Extension Builder rates in Dulwich
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| Job details | Estimate |
| Underpinning a house | £1713 |
| Build a two storey extension | £5710 |
| Build a timber frame extension | £5710 |
| Install a swimming pool | £3426 |
| Cost to build a single storey extension | £45682 |
| Cost to build a side return extension | £52534 |
| Install an RSJ | £999 |
| Build an outbuilding | £2284 |
| Build a mansard loft conversion | £11420 |
| Cost of a loft conversion | £31977 |
| Build a kitchen extension | £11420 |
| Build a hip to gable loft conversion | £8565 |
| Build a granny annexe | £5710 |
| Build a garden office | £2284 |
| Convert a garage | £1142 |
| Build a new garage | £2284 |
| Build a flat roof extension | £1941 |
| Build a dormer loft conversion | £2284 |
| Lay a concrete foundation | £2284 |
| Convert a bungalow loft | £3426 |
| Basement conversion cost | £31977 |