Range from the cheapest £25 per hour and £190 per day (Captain Stove Direct based in NN6) to the dearest £75 per hour and £350 per day (STRANDOR ROOFING LTD based in NN6).
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
I am looking for a contractor to install a loft hatch and ladder.
17/09/2024
Convert Garage into lounge area
17/09/2024
Extend house to the side and possible loft extension.
We need Extension Builders like you to help local homeowners with their jobs.
See table for all Extension Builder rates in Irthlingborough
| Job details | Estimate |
| Underpinning a house | £1527 |
| Build a two storey extension | £5091 |
| Build a timber frame extension | £5091 |
| Install a swimming pool | £3055 |
| Cost to build a single storey extension | £40727 |
| Cost to build a side return extension | £46836 |
| Install an RSJ | £891 |
| Build an outbuilding | £2036 |
| Build a mansard loft conversion | £10182 |
| Cost of a loft conversion | £28509 |
| Build a kitchen extension | £10182 |
| Build a hip to gable loft conversion | £7636 |
| Build a granny annexe | £5091 |
| Build a garden office | £2036 |
| Convert a garage | £1018 |
| Build a new garage | £2036 |
| Build a flat roof extension | £1731 |
| Build a dormer loft conversion | £2036 |
| Lay a concrete foundation | £2036 |
| Convert a bungalow loft | £3055 |
| Basement conversion cost | £28509 |