About Winlion Proven on site.
Specialist passive fire protection contractor — appointed PFP maintainer for the entire London Underground network.
Two decades of protecting people and property.
Our foundations, on paper.
Every project we deliver rides on standards that were earned in some of the world's most demanding compartmentation environments.
Third-party tested products
Every product on our shelf is backed by an EN 1366 / BS 476 test certificate — no un-tested workarounds on site.
Trained PFP installers
Our installers are trained on each manufacturer's tested details — the seal on your building is the one the test data covers.
Compartmentation registers
Every penetration is tagged, photographed and logged — you get a live register you can hand to building control.
Design-supply-install-certify
One accountable partner from fire strategy through to sign-off — no gaps between designer, supplier and installer.
London Underground appointed
Appointed passive fire protection maintainer for the entire London Underground network — trusted at national-infrastructure scale.
24/7 response for critical works
Out-of-hours and weekend working available for hospitals, data centres and transport projects.
Proof, not promises. Watch the work.
A window into live Winlion projects — compartmentation, fire doors and firestopping, installed and documented by our own crews.