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£22/hr
£202/day
DRAGON CONSTRUCTION T/A
Experienced extension builder ready to quote for your work. DRAGON CONSTRUCTION T/A is the best extension builder in Wales. No obligation free quot...
£23/hr
£201/day
SP Coupland Ltd
Our building services company SP Coupland Ltd have thirty-eight years’ experience and have been helping customers in Sir Ceredigion and the surro...
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.

Build a timber frame extension - £25,616

Garden office - £9,616

Granny annexe - £86,616

Build a flat roof extension - £21,616

Convert a Garage - £15,616

Hip to gable loft conversion - £41,616

Convert a bungalow loft - £28,616

Build a dormer loft conversion - £41,616

Build a swimming pool - £80,616

Build a Mansard loft conversion - £51,616

Concrete foundations - £5,866

Underpin a building - £17,116

Two storey extension - £87,424

Convert a basement - £33,180

Side return extension - £37,180

Loft conversion - £30,150

Garage - £18,116

Single storey extension - £47,320

Outbuilding - £9,616

Install an RSJ - £1,816

Build a kitchen extension - £41,616
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