Extension Builder's rates near S21
Range from the cheapest £25 per hour and £150 per day (R Watson Builders based in S43) to the dearest £100 per hour and £1000 per day (C S Roofing & Building based in S8).
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.
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Extension Builder's near S21
See table for all Extension Builder rates in S21
Estimated cost of work in S21
| Job details | Estimate |
| Underpinning a house | £1856 |
| Build a two storey extension | £6186 |
| Build a timber frame extension | £6186 |
| Install a swimming pool | £3711 |
| Cost to build a single storey extension | £49485 |
| Cost to build a side return extension | £56908 |
| Install an RSJ | £1082 |
| Build an outbuilding | £2474 |
| Build a mansard loft conversion | £12371 |
| Cost of a loft conversion | £34639 |
| Build a kitchen extension | £12371 |
| Build a hip to gable loft conversion | £9278 |
| Build a granny annexe | £6186 |
| Build a garden office | £2474 |
| Convert a garage | £1237 |
| Build a flat roof extension | £2103 |
| Build a dormer loft conversion | £2474 |
| Lay a concrete foundation | £2474 |
| Convert a bungalow loft | £3711 |
| Basement conversion cost | £34639 |