• We're here to help-reach out to our team today.

Fire safety is not just a compliance requirement, it is a critical investment in protecting lives, assets, and the integrity of a building. At True Seal, we specialise in the professional installation of fire resistant products and certification, delivering fully compliant passive fire protection systems that meet Australian Standards and building code requirements.

From fire board systems and fireseal applications through to final certification, our experienced team ensures every installation is carried out correctly, tested thoroughly, and documented properly to support your Building Certificate of Occupancy.

Get a Quote
Explore Our Services

What is Fire Stopping of Service Penetrations?

In fire stopping, a service penetration is an opening created in a wall or floor assembly that is required to maintain a specific Fire Resistance Level (FRL). These penetrations allow services to pass through fire-rated elements but must be sealed correctly to preserve the assembly’s fire performance.

Penetrations commonly occur due to:
  • Mechanical ductwork
  • Electrical cables and cable trays
  • Plumbing pipes
  • Structural elements
  • Cast-in-place sleeves
Without proper fire stopping, these openings can allow fire and smoke to spread rapidly between compartments, undermining the building’s fire design.
Get a Quote

Why Fire Stopping Is Critical to Fire Resistance?

Fire-rated walls and floors are only effective if their integrity remains intact. Even a small unsealed penetration can significantly reduce a structure’s fire resistant performance. Correct fire stopping:
  • Restores the FRL of walls and floors
  • Prevents fire and smoke spread between fire compartments
  • Protects escape paths and structural elements
  • Supports compliance with the National Construction Code (NCC)
  • Reduces risk to occupants, assets, and emergency responders
Fire stopping is not optional, it is a mandatory requirement in fire-rated construction.
Get a Quote

What This Service Includes

Our Fire Stopping Services

True Seal delivers professional fire stopping of service penetrations across commercial, industrial, and residential projects. All works are completed using tested and approved systems.
Our services include fire stopping for:
  • Electrical cabling and cable trays
  • Plumbing pipes (metal and plastic)
  • Mechanical ductwork
  • Multi-service penetrations
  • Cast-in-place sleeves
  • Structural penetrations
We select fire stopping methods based on the penetrant type, substrate, movement requirements, and tested fire systems.

Fire Board and Penetration Protection

In certain applications, fire board is used to create fire-rated enclosures or barriers around service penetrations. Fire board systems help maintain compartmentation and protect critical services.
True Seal ensures fire board installations:
  • Match tested fire systems
  • Maintain required FRL ratings
  • Integrate correctly with fireseal products
  • Meet compliance and inspection requirements

Fire board and fireseal systems must work together to deliver reliable passive fire protection.

Fire Stopping Certification

Certification is a mandatory part of fire stopping works. It confirms that all service penetrations have been sealed correctly and comply with applicable standards.
True Seal provides:
  • Fire stopping certification by trained and accredited professionals
  • Detailed documentation of installed systems
  • Identification of fireseal and fire board products used
  • Support for building surveyors and certifiers


This certification is essential for compliance sign-off and Building Certificate of Occupancy approval.

Fireseal Products and Systems

We install certified fireseal products that have been tested to meet Australian fire resistance standards. Fireseal systems are used to close gaps and seal penetrations while allowing for movement, expansion, and service maintenance where required.
Our fireseal applications include:
  • Intumescent sealants
  • Fire-rated mortars
  • Collars and wraps for plastic pipes
  • Fire pillows and modular fire stopping systems

Each fireseal solution is installed strictly in accordance with manufacturer requirements and tested system designs.

Compliance With Australian Standards

All fire stopping works must comply with Australian building codes and relevant standards. True Seal ensures installations align with:
  • AS1530 Part 4 fire resistance testing
  • NCC requirements for fire compartmentation
  • Manufacturer-tested fire stopping systems
  • Approved fire engineering designs (where applicable)

No substitutions or unapproved variations are used, ensuring the installed system performs as tested in a fire event.

Common Fire Stopping Failures We Rectify

We are frequently engaged to identify and rectify non-compliant fire stopping, including:
  • Unsealed or partially sealed penetrations
  • Incorrect fireseal products
  • Mixed or untested systems
  • Missing or incomplete certification
  • Damage caused by later service installations

Early rectification helps avoid inspection failures, delays, and costly rework.
Get a Quote

Our Services

True Seal offers a complete range of Passive Fire Protection solutions designed to meet Australian Standards and ensure every project achieves full compliance from start to finish.

Why Choose True Seal?

True Seal is a specialist provider of passive fire protection, trusted for compliant fire stopping solutions across a wide range of building types.
Why clients choose us:
  • Expertise in fire stopping of service penetrations
  • Strict compliance with Australian Standards
  • Certified fireseal and fire board installations
  • Clear documentation and certification
  • Reliable support during inspections and approvals

We work closely with builders, contractors, facility managers, and certifiers to ensure every penetration is sealed properly and performs when it matters most.
Learn More About Us
Explore Our Services

Request Fire Stopping Services

If you require compliant fire stopping of service penetrations, True Seal can assist with installation, rectification, and certification.
Our team delivers reliable, tested, and fully documented solutions to protect lives, assets, and building approvals.

Contact True Seal today to discuss your project requirements or arrange a fire stopping compliance assessment.

Contact Us Today

Frequently Asked Questions

Fire Stopping of Service Penetrations

Get a Quote
Explore Our Services

Fire stopping of service penetrations involves sealing openings in fire-rated walls and floors where services such as pipes, cables, or ductwork pass through. These seals restore the required Fire Resistance Level (FRL) of the building element and prevent fire, smoke, and hot gases from spreading between compartments.

Fire stopping is required wherever services penetrate fire-rated elements, including:

  • Electrical cables and cable trays
  • Plumbing pipes (metal and plastic)
  • Mechanical ductwork
  • Structural penetrations
  • Cast-in-place sleeves
  • Multi-service openings

Each penetration must be sealed using a tested and approved fire stopping system.

AS1530 Part 4 is the Australian Standard used to test the fire resistance of building elements, including fire stopping systems. Compliance with this standard confirms that a fire stopping system has been tested to withstand fire exposure for a specified period while maintaining integrity and insulation.

Non-compliant fire stopping can lead to failed inspections, delayed approvals, costly rectification works, and increased risk to occupants and property. It may also invalidate fire engineering designs and building certifications.

Fire stopping should only be completed by trained and accredited passive fire protection specialists. True Seal ensures all fire stopping works are installed correctly, documented thoroughly, and certified to meet Australian compliance requirements.

Fire-rated walls and floors are only effective if they remain intact. Even a small unsealed penetration can compromise fire resistance and allow rapid fire spread. Fire stopping is a mandatory requirement under the National Construction Code (NCC) to ensure fire compartmentation and occupant safety.
Fire stopping systems may include fireseal products, fire boards, and fire-rated components such as:
  • Intumescent sealants
  • Fire-rated mortars
  • Pipe collars and wraps
  • Fire pillows and modular systems
  • Fire boards for enclosure and barrier protection
The correct system is selected based on the penetrant type, substrate, and required FRL.

Yes. Fire stopping certification is mandatory. Certification confirms that all penetrations have been sealed correctly, installed in accordance with tested systems, and comply with Australian Standards and NCC requirements. Certification is essential for compliance sign-off and a Building Certificate of Occupancy.

Any changes to services after installation can damage or compromise fire stopping. If services are added, removed, or modified, fire stopping must be reinstated using approved systems. Regular inspections are recommended to maintain ongoing compliance.