Range from the cheapest £15 per hour and £120 per day (SUMNER CONSTRUCTION based in EX16) to the dearest £30 per hour and £250 per day (Karesa Developments Ltd based in TA21).
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 TA21
I am passionate about my job and love what I do.
I always strive to bring the best quality service,
and am always willing...
Been installing fascia soffits for over twenty years i profide a very good service
| Job details | Estimate |
| Underpinning a house | £1428 |
| Build a two storey extension | £4761 |
| Build a timber frame extension | £4761 |
| Install a swimming pool | £2857 |
| Cost to build a single storey extension | £38089 |
| Cost to build a side return extension | £43803 |
| Install an RSJ | £833 |
| Build an outbuilding | £1904 |
| Build a mansard loft conversion | £9522 |
| Cost of a loft conversion | £26662 |
| Build a kitchen extension | £9522 |
| Build a hip to gable loft conversion | £7142 |
| Build a granny annexe | £4761 |
| Build a garden office | £1904 |
| Convert a garage | £952 |
| Build a flat roof extension | £1619 |
| Build a dormer loft conversion | £1904 |
| Lay a concrete foundation | £1904 |
| Convert a bungalow loft | £2857 |
| Basement conversion cost | £26662 |