Fire Stopping Contractors & Compartmentation Installation in London & the Thames Valley
Firestopping for Gateway 2 handovers across London, installed as tested and evidenced so your handover holds. Delivered by a BM TRADA Q-Mark certified team.
The service
Holds in a fire. Holds up in an audit.
Holes in fire-rated walls are how fire spreads through a building. We seal them, prove every seal, and hand you evidence that stands up at sign-off.
Before you appoint any contractor, ask for per-seal photos, tags and a traceable handover record. Skyline hands you exactly that, ready for building control, the BSR and insurers.
- Tested systems, installed exactly as tested No mixed systems. No engineering shortcuts. No “site decisions” on safety-critical seals.
- Alongside your other trades Firestopping installation that stays flexible in a dynamic environment and works the way construction actually runs.
- Certified, experienced installers BM TRADA Q-Mark third-party installer certification, audited on the workmanship itself. See how a certified installer compares to a generalist, then verify our certificate number against the BM TRADA register.
We cover Greater London, the Thames Valley and the M4 corridor from our Henley-on-Thames base.
Hear it from the founder · 36s
What we install
Firestopping services
Every firestopping installation below is delivered the same way: tested
firestopping materials and products,
installed exactly as tested, photographed and captured in the golden thread before
it’s covered over.
01
Penetration Sealing
Single and multi-service penetrations through fire-rated walls and floors, sealed with tested systems and intumescent collars on plastic pipes. Every seal photographed before cover-up.
02
Compartmentation
Forming and restoring compartment lines so fire and smoke stay contained to their designed zone, installed to the tested system and evidenced as the work goes in.
03
Linear Gap Sealing
Junction and head-of-wall gaps sealed to match joint movement, substrate and required fire rating, using tested mastic or coated batt systems.
04
05
Cavity Barriers
Coated fire batts and mastic void fill closing concealed spaces and external wall build-ups, each batt cut and fixed to close the cavity.
Structural Fire Protection
Boarding and intumescent systems giving fire protection to structural steel and
load-bearing elements.
06
07
Service Riser Firestopping
Risers and shafts where services stack between floors, firestopped in coordination as the riser fills, with each collar, batt and seal recorded.
Remedial Firestopping
Correcting defective or failed firestopping identified on survey or at handover.
08
Maintenance & Alterations
Maintaining and adapting existing firestopping as building services change over the
asset life.
09
New Build Firestopping
Fire barrier installation and firestopping delivered as part of new-build
construction, evidenced before cover-up.
Evidenced before cover-up
Proof, per seal — the evidence pack you hand over
Every penetration, joint and cavity is photographed before, during and after installation, always before cover-up. Every seal is tagged: company, installer, date.
That record builds into your Gateway 2 and Golden Thread evidence pack as the work goes in. It is what building control, the BSR and insurers actually check at sign-off; a verbal assurance is not evidence.
It is the discipline behind landmark projects including The Gherkin, Olympic Park and Grosvenor Square. What you hand over is simple: proof, per seal, that the line holds.
Item-level evidence per sealOur firestopping installers photograph and tag every seal individually through our own item-level evidence record. No batch sign-offs.
Built to Gateway 2 / Golden Thread structureThe pack is structured from day one of the install, not assembled at
handover.
Seen before it disappearsOn new build, we capture the seal before plasterboard hides it.
Checked by the people who matterBuilding control, the BSR, insurers and owners check the pack, not a verbal
assurance.
How we work
We work backwards from your deadline
Pragmatic, professional, relationship-led: we work backwards from the building’s
safety requirements and your deadline, so you hit handover with the evidence already
done.
Step 1
Survey & scope
We start from the building’s safety requirements and your programme deadline.
Step 2
Specify
The right tested system specified fast, from the manufacturer named for that
fire-rated detail.
Step 3
Install
Tested systems installed exactly as tested, by a highly experienced, certified team.
Step 4
Evidence
Photographed at every stage and always before cover-up. Every seal is tagged with
the company, installer and date.
Step 5
Handover
The complete Gateway 2 / Golden Thread evidence pack, handed over at completion.
Working with leading firestopping manufacturers including Quelfire, Nullifire, Protecta, Rockwool and Firefly
See it for yourself
Straight from our founder, and from the field
Page updated
“
The purpose of Skyline is to make the UK much safer … we want every building to be as safe as possible.
TF
Tom FordFounder & Director, Skyline Firestopping · from his recorded purpose
message
Related pages
Surveys, training & the free review
Services
→
Passive Fire Protection & Firestopping Surveys
Firestopping and compartmentation surveys — breaches identified floor-by-floor,
photographed, located and validated.
Services
→
Fire Safety Training, CPD & Toolbox Talks
Sessions for project directors, building safety managers and site teams.
Free
→
Golden Thread Readiness Review
Send us your drawings and we send back a gap report. Higher-risk buildings get
it free.
Talk to a specialist
Get clear advice on your project
Talk to one of our specialists about your building, your programme and what compliance
actually requires. It's a free, no-obligation discussion with no commitment, just
clear advice from the BM TRADA Q-Mark certified team that installs and evidences the
work, with item-level proof per seal on landmark projects including The Gherkin and
Olympic Park.