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Firestopping
QTL

Passive Fire Protection

Protecting buildings · Protecting lives

BSC-certified firestopping installation and inspection — from single day-works to large high-rise projects across London, the South East and East of England.

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What we do

A complete passive fire protection service, delivered by trained operatives and certified inspectors.

Firestopping installation

Penetration seals, linear gap seals and compartmentation across walls, floors and service risers.

Fire-stopping inspection

Independent BSC-certified inspection, full reporting and remedial recommendations.

Remedial works

Targeted remedial firestopping on existing buildings — minimal disruption, full sign-off.

High-rise projects

Programme-delivered installation packages on large-scale high-rise developments.

Compartmentation

Restoring and maintaining fire compartments to keep occupants safe.

Day-works contracts

Flexible day-works support for ongoing maintenance and small projects across London, the South East and East of England.

From day-works to high-rises
across London, the South East and East of England

We're focused on modernising buildings and making them safer. Every project starts with a helpful conversation to understand the building, the risks and the right approach — then we deliver the work with full documentation and sign-off. From a single visit to a multi-year high-rise programme, the standard stays the same.

Safer
Buildings, modernised
UK-wide
Project coverage
BSC
Certified installer & inspector
SMSTS
Trained site managers

The trusted blue strip

"Every install we sign off carries the QTL blue strip — a mark of approval our clients rely on."

Independently certified

BSC accredited

BSC Certified Installer FSI-099

Certified Installer · FSI-099

BSC Certified Inspector FSIN-021

Certified Inspector · FSIN-021

Accreditations & memberships

Recognised across the industry

NHBC Pride in the Job
NHBC Pride in the Job
Multiple-time winners
FIS Member
FIS Member
Finishes & Interiors Sector
FMB Member
FMB Member
Federation of Master Builders
CHAS Certified
CHAS Certified
Contractor health & safety
SMAS Worksafe
SMAS Worksafe
Safety management accreditation
British Gypsum
British Gypsum
Knauf Drywall
Knauf Drywall
Weber Saint-Gobain
Weber Saint-Gobain
Quelfire
Quelfire
Passive fire protection products
Nullifire
Nullifire
Fire stopping & intumescent coatings
Rockwool
Rockwool
Stone wool insulation
NHBC Pride in the Job
NHBC Pride in the Job
Multiple-time winners
FIS Member
FIS Member
Finishes & Interiors Sector
FMB Member
FMB Member
Federation of Master Builders
CHAS Certified
CHAS Certified
Contractor health & safety
SMAS Worksafe
SMAS Worksafe
Safety management accreditation
British Gypsum
British Gypsum
Knauf Drywall
Knauf Drywall
Weber Saint-Gobain
Weber Saint-Gobain
Quelfire
Quelfire
Passive fire protection products
Nullifire
Nullifire
Fire stopping & intumescent coatings
Rockwool
Rockwool
Stone wool insulation

Request a quote

Tell us about your project. We'll come back to you fast.

Or call 01375 648 100 · enq@qtl.co.uk