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 - £25,360

Garden office - £9,360

Granny annexe - £86,360

Flat roof extension - £21,360

Garage conversion - £15,360

Hip to gable loft conversion - £41,360

Bungalow loft conversion - £28,360

Dormer loft conversion - £41,360

Swimming pool - £80,360

Mansard loft conversion - £51,360

Concrete foundation - £5,610

Underpinning - £16,860

Two storey extension - £87,040

Basement conversion - £30,300

Side return extension - £34,300

Loft conversion - £27,750

Garage - £17,860

Single storey extension - £42,200

Outbuilding - £9,360

RSJ installation - £1,560

Kitchen extension - £41,360
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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!
