Range from the cheapest £20 per hour and £140 per day (RM contractors based in Nr20) to the dearest £30 per hour and £240 per day (Nu-build Norfolk Ltd based in PE34).
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.
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I need my garage extending to accommodate my car
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See table for all Extension Builder rates in Swaffham
Our team are a well established and well trusted company with many years experiance all roofing and building work compl...
| Job details | Estimate |
| Underpinning a house | £1392 |
| Build a two storey extension | £4641 |
| Build a timber frame extension | £4641 |
| Install a swimming pool | £2784 |
| Cost to build a single storey extension | £37126 |
| Cost to build a side return extension | £42694 |
| Install an RSJ | £812 |
| Build an outbuilding | £1856 |
| Build a mansard loft conversion | £9281 |
| Cost of a loft conversion | £25988 |
| Build a kitchen extension | £9281 |
| Build a hip to gable loft conversion | £6961 |
| Build a granny annexe | £4641 |
| Build a garden office | £1856 |
| Convert a garage | £928 |
| Build a new garage | £1856 |
| Build a flat roof extension | £1578 |
| Build a dormer loft conversion | £1856 |
| Lay a concrete foundation | £1856 |
| Convert a bungalow loft | £2784 |
| Basement conversion cost | £25988 |