Fire Stopping & Compartmentation

Thorough inspections of existing fire doors to ensure they meet legal requirements and function correctly in the event of a fire.

Protecting Lives by Containing Fire at the Source

In the event of a fire, every second counts — and the way your building is compartmentalised can mean the difference between a safe escape and a fast-spreading disaster. At RTJ of Sussex, we provide expert fire stopping and compartmentation services to help slow the spread of fire and smoke, giving occupants vital time to evacuate and emergency services time to respond.

We work with landlords, property managers, care homes, and commercial sites across Sussex to ensure buildings are fully protected and legally compliant.

What Is Fire Stopping & Compartmentation?

Fire stopping and compartmentation are passive fire protection methods that help contain fire and smoke within a specific area of a building, limiting the damage and reducing the risk to life.

Sealing penetrations in walls, floors, and ceilings (e.g. around pipes, cables, and ductwork)

Maintaining fire-resisting partitions and compartments

Installing fire-resistant barriers and materials

Ensuring compliance with building design and fire strategy

Every intervention is installed by trained professionals using tested and certified products that meet the latest fire safety standards.

Where Fire Stopping is Needed

Fire stopping is required anywhere that fire-resistant walls, floors, or ceilings have been breached. Common examples include:

Service risers and voids

Electrical, plumbing, and HVAC penetrations

Behind walls or ceiling voids in communal areas

Around cable trays or ductwork in commercial buildings

Partition walls between flats, rooms, or departments

RTJ employee installing a fire extinguisher to a wall
Roy of RTJ inspecting pipes

Legal Requirements & Compliance

Fire stopping and compartmentation are essential under the Regulatory Reform (Fire Safety) Order 2005 and required to meet Approved Document B of the Building Regulations. If fire stopping is missing or has deteriorated, it may lead to enforcement notices or insurance issues.

Our work is carried out in accordance with:

  • BS 476 and BS EN 1366 standards
  • Manufacturer installation guidelines
  • Your building’s fire strategy and risk assessment

We provide photo evidence, certification, and a clear record of all fire stopping works carried out.

Book a Fire Stopping Survey Today

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