Job estimates from extension builders near you
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Timber frame extension - £25,680

Garden office - £9,680

Granny annexe - £86,680

Flat roof extension - £21,680

Garage conversion - £15,680

Hip to gable loft conversion - £41,680

Bungalow loft conversion - £28,680

Dormer loft conversion - £41,680

Swimming pool - £80,680

Mansard loft conversion - £51,680

Concrete foundation - £5,930

Underpinning - £17,180

Two storey extension - £87,520

Basement conversion - £33,900

Side return extension - £37,900

Loft conversion - £30,750

Garage - £18,180

Single storey extension - £48,600

Outbuilding - £9,680

RSJ installation - £1,880

Kitchen extension - £41,680
People in NE25 searching for a Extension Builder also viewed...
The Largest Database of UK Trade Rates
At HaMuch we know what tradespeople charge because we have the largest database of rates anywhere in the UK. If you want quotes for jobs at the right price for you, post your jobs with HaMuch and get your home improvements kickstarted straight away!
