Passive fire protection, engineered to protect life and property.
Winlion is a specialist passive fire protection contractor. From compartmentation surveys and design through supply, installation and certification — one accountable partner from concept to sign-off.
The built-in fire defence of a building that stays hidden — until it matters most.
Passive fire protection is the built-in layer of defence that keeps a building's structure, escape routes and compartments intact when a fire breaks out — buying time for people to evacuate and for the fire service to respond. Winlion designs, supplies, installs and certifies passive fire protection systems for commercial, industrial, retail and infrastructure projects — from small remedial work through to full building fit-outs.
Explore our servicesCertified & experienced in delivering work to recognised engineering standards.
Fully compliant with industry regulations, workmanship requirements and approved installation practices — proven on some of the UK's most safety-critical infrastructure.
BM TRADA Q-Mark certified — scheme 0012.
Independently audited and third-party certified across the disciplines that matter most on site:
- Firestopping Installation
- Fire Door Installation
- Fire Door Maintenance
Working to BS, EN and ISO standards, aligned with UKAS-accredited certification and approved fire protection and mechanical engineering systems.
Four disciplines. One accountable team.
From compartmentation design through to third-party certified installation — every phase is handled under one roof.
Every seal witnessed. Every joint documented.
Straight from the site. Unscripted, on loop.
Every clip below was recorded on a live Winlion project — real crews, real installations. Muted by design; just watch the work.
Track record you can build on.
protecting buildings
across the UK and Sri Lanka
tested & certified products
response for critical works
Tested firestopping. Watch it come to life.
Real installations from live projects — every seal documented from survey through to certified handover.
Chapter Playlist
Proven at the highest level — brought home to Sri Lanka.
Systems, standards and certifications carried over from a decade of London Underground work — delivered locally, backed by full documentation.
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.
Passive fire protection, engineered to protect life and property.
Talk to Winlion about your project — we'll match the correct tested product and detail.