House Extension Cost Guide in West London
House extension costs vary with footprint, structure, specification, access and the amount of internal work required. This guide explains the budget decisions that matter.
15+
Years delivering construction work across West London
2,000+
Completed projects since 2011
5-Year
Structural guarantee on eligible work
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What This Service Includes
Planned and prepared
We separate construction, professional fees, kitchen or bathroom specification, services, finishes and contingency so the quotation can be compared clearly.
Read moreBuilt for your property
A measured survey and written scope are the best way to avoid allowances that later become unexpected extras.
Read moreA straightforward process
We begin with a site visit and a written scope, confirm the specification and programme, then coordinate the work through to testing, snagging and handover. You have one point of contact throughout.
Get a Free House Extension Cost Guide Quote
There is no charge for the survey and no obligation to proceed. Most survey appointments are available within 5 to 7 working days.