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Cluster: The complete guide to mansard roof extensions in London

Mansard roof cost in London: real numbers

£80-130k typical, what drives the spread.

£80-130k typical, what drives the spread. This article draws on 200+ London projects delivered by our MCIAT chartered team across all 33 boroughs. For pricing context, see our fixed-fee schedule. For your specific address, request a free quote — turnaround is same day.

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