Cost to build a flat roof extension in N21

Build a flat roof extension cost in N21

Flat roof extension cost in N21

Estimates for build a flat roof extension near N21

A flat roof extension ranges from the cheapest of £22,048 (J&J Building Solutions based in SW16) to the dearest of £23,616 (GasHeat based in NW10), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.

Find out how much your flat roof extension will cost in N21 by posting a job with HaMuch. We'll send it to extension builders in N21.

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Borough in London
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Estimates for common extension builder jobs in N21;

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.