Most popular for extensions
£1,000
Independent guidance through every key stage of your extension.
The problem
Extensions are where the most expensive Building Regulations mistakes happen — foundations to the wrong depth, missed drainage build-overs, insulation that fails the U-value, fire strategy that doesn't add up.
Our solution
Extension Watch puts an independent advisor alongside you at every critical stage so issues are caught while they're still cheap to fix — not at completion when Building Control refuses sign-off.
What's included
We sit alongside you from groundworks to completion — translating what's happening, flagging compliance risks early, and helping you understand what you'll be asked to sign at the end.
FAQ
Related resources
Extensions
Planning, foundations, structure, insulation and the mistakes that cost homeowners money.
Foundations
Excavation, trench fill, piling, underpinning and ground conditions explained in plain English.
Drainage
Build-over agreements, sewer locations, inspection chambers and hidden risks beneath your project.
Compliance Declarations
Understanding certificates, declarations and what homeowners may be asked to sign.
Coming soon
47 pages. Real photos. The 12 mistakes we see homeowners make every week — and how to spot them before they cost you thousands. Currently in the final edit — available shortly.
Free Download
47 pages. Real photos. The 12 mistakes we see homeowners make every week — and how to spot them before they cost you thousands.