Find affordable Grantham extension builders now

Extension builders rates in Grantham range from £25/hour £159/day (The Glass Box) to £42/hour £196/day (LG Soffits & Fascias). To see prices and availability now for your job click green button.

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£27/hr

£196/day

Last active May 26
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BRIARWOOD BUILDING CONTRS LTD

BRIARWOOD BUILDING CONTRS LTD is an established extension buildering business in Grantham. We come highly recommended and provide competitive quote...

"RSJ installation" - NG33, job posted 17/01/26

£42/hr

£159/day

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LG Soffits & Fascias

Location

Grantham, NG31

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

£25/hr

£186/day

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The Glass Box

The Glass Box is a trusted extension builder serving customers in Grantham and the surrounding area. Contact us to today to get a competitive quote...

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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.

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