Pipe and cable penetrations
Sealed with tested systems matched to the pipe or cable material and the compartment rating.
Fire Protection · Passive Fire-Stopping
Passive Fire-Stopping
Compartmentation, service penetrations and linear gap sealing installed to spec, closing every route fire and smoke can travel through a building's structure.
Tested systems, photographed evidence.
Passive fire-stopping, done to a defensible standard.
A service penetration through a fire-rated wall or floor is a hole in your compliance until it is sealed correctly. DefendX closes it with a tested, certified system matched to the rating of the compartment line, not a generic sealant applied by eye.
Every seal is photographed and logged against a floor plan, so the record holds up under a fire risk assessment, an insurer's audit or a Building Safety Act inspection.
Passive fire-stopping restores the fire rating of a wall, floor or riser once a service penetration has broken it. DefendX seals pipes, cables, ducts and linear gaps to the product manufacturer's tested system, matched to the fire rating of the compartment line, with photographic evidence for every seal.
At a glance
- System
- Certified fire-stopping products
- Evidence
- Photographic seal register
- Standard
- Approved Document B
- Mobilisation
- From 48 hours
What it covers
The work, line by line.
Every line is delivered against written assignment instructions and reported into the AOG weekly review.
Duct and damper penetrations
Fire and smoke dampers and duct penetrations sealed to specification.
Linear gap sealing
Head-of-wall and perimeter gaps closed at compartment lines.
Batts, pillows and collars
Multi-service penetrations packed and sealed with the correct rated product for each service.
What is included
Inside the service.
- Pipe and cable penetration sealing using tested, third-party certificated systems where specified
- Duct and damper penetrations sealed to the specified fire rating
- Linear gap sealing at compartment walls, floors and service risers
- Fire-rated batt and pillow installation around multi-service penetrations
- Intumescent collars and wraps fitted to plastic pipework
- Photographic register of every seal, referenced to a floor plan
Why AOG
What you get that you would not elsewhere.
Fire-stopping systems selected and installed to the applicable tested detail for the substrate, service penetration and required fire resistance
Photographic evidence logged against a floor plan gives a defensible compliance record
Records structured to support the building owner's wider Building Safety Act evidence requirements where applicable
Runs alongside DefendX compartmentation surveys so findings go straight to remediation
Available as a standalone instruction or bundled with the wider fire protection programme
One AOG account covers fire protection alongside FM, security and construction support if you need it
Where it is deployed
Sectors using Passive Fire-Stopping.
Proof
Operational, not aspirational.
100%
installed locations photographically recorded and referenced to a register
From single-riser remediation to full-floor compartmentation, every seal is logged and photographed.
Questions
Frequently asked questions
What is fire stopping?
Fire stopping is the sealing of a service penetration, such as a pipe, cable or duct, through a fire-rated wall or floor, using a system matched to the fire rating of that compartment line. It restores the fire resistance that the penetration would otherwise break.
What types of penetrations can be fire stopped?
Pipe and cable penetrations, duct and damper penetrations, and linear gaps at compartment walls, floors and service risers can all be sealed using the appropriate tested system for that penetration type.
How is each installation recorded?
Every seal is photographed and referenced to a floor plan, building a register that supports the building owner's wider fire-safety evidence requirements.
What information is needed before works begin?
DefendX typically needs the building type, relevant drawings, and any existing fire risk assessment or compartmentation survey findings to scope and price the works accurately.
Can DefendX remediate existing defective fire stopping?
Yes. Defective or missing fire stopping identified through a survey or assessment can be remediated with certified systems, with the close-out photographed and referenced back to the original finding.
Talk to DefendX about fire-stopping.
Tell us the building, the penetrations and the timescale. We will come back with a scope and a quote.