Ensuring Fire Safety with Expert Service Penetration Sealing Across the UK

At CS Passive Fire, we specialise in service penetration sealing to prevent fire, smoke, and toxic gases from spreading through service openings in walls, floors, and ceilings. Our experienced team ensures your building complies with BS 476-20, BS EN 1366-3, and Approved Document B of the UK Building Regulations.

What is Service Penetration Sealing?

Service penetration sealing involves using fire-resistant materials to seal openings created by pipes, cables, ducts, and other building services. These openings can become weak points during a fire, allowing flames and smoke to spread unchecked. Proper sealing ensures compartmentalisation and maintains the integrity of fire-rated walls and floors.

Why is Service Penetration Sealing Essential?

  • Fire Containment: Seals gaps around penetrations to stop fire, smoke, and gases from spreading.

  • Regulatory Compliance: Meets UK fire safety standards such as BS 476, BS EN 1366, and the Fire Safety Order 2005.

  • Structural Integrity: Preserves the performance of fire-rated walls, floors, and ceilings.

  • Life Safety: Protects building occupants by maintaining safe evacuation routes.

  • Insurance Compliance: Proper fire-stopping is often a requirement for property insurance policies.

Our Service Penetration Sealing Solutions

We offer tailored solutions for a wide range of building services:

  • Pipes (Metal & Plastic): Fire collars, wraps, and sealants.

  • Electrical Cables & Trays: Intumescent pillows and putties.

  • HVAC Ducts: Fire-resistant compounds and dampers.

  • Mixed Penetrations: Combined services sealed with approved materials.

Our Process

  1. Site Survey: We conduct a thorough inspection to identify service penetrations requiring fire-stopping.

  2. Customised Plan: Develop a tailored fire-stopping strategy based on your building's layout and requirements.

  3. Installation: Our certified team applies high-performance sealing systems with precision.

  4. Documentation & Certification: We provide detailed reports and certification to demonstrate compliance.

  5. Maintenance & Inspection: We offer ongoing maintenance to ensure fire-stopping integrity over time.

Materials We Use

We use only high-quality materials that have been independently tested and certified, including:

  • Intumescent Fire Collars: Expand under heat to close off plastic pipe openings.

  • Fire Wraps: Flexible wraps for sealing plastic pipes.

  • Fire-Rated Sealants & Putties: Non-combustible materials for cable and pipe penetrations.

  • Fire-Resistant Boards: Rigid boards for larger or more complex openings.

Compliance & Quality Assurance

CS Passive Fire strictly adheres to UK fire safety regulations, including:

  • BS 476-20: Fire resistance tests for building materials.

  • BS EN 1366-3: Fire performance of service penetrations.

  • Approved Document B: Guidance on fire safety in buildings.

We conduct regular training to keep our team updated on the latest regulations and best practices.

Who Needs Service Penetration Sealing?

  • Office Buildings

  • Residential Complexes

  • Hospitals & Healthcare Facilities

  • Schools & Universities

  • Warehouses & Industrial Sites

  • Hotels & Hospitality Venues

FAQs about Service Penetration Sealing

Q: Why do service penetrations need sealing?
A: Service penetrations create pathways for fire and smoke to spread through a building. Sealing these gaps helps maintain fire compartmentalisation and protects lives and property.

Q: What materials are used for penetration sealing?
A: We use intumescent collars, fire wraps, sealants, and fire-rated boards, all tested to BS EN 1366-3 standards.

Q: How often should service penetration seals be inspected?
A: Annual inspections are recommended, especially if new services have been installed or building alterations made.

Q: Can you retrofit fire-stopping in older buildings?
A: Yes, our team can assess existing structures and install compliant fire-stopping solutions without major disruption.

Q: What happens if service penetration seals are not installed correctly?
A: Incorrect installation can lead to fire and smoke spreading rapidly, compromising safety and resulting in non-compliance with UK fire safety laws.

Get a Quote Today

Don't take risks with fire safety. Contact CS Passive Fire today for expert advice and professional service penetration sealing services across the UK.