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Fire bags and pillows

When a fire breaks out in a building it is important to prevent the spread of it as much as possible. By limiting the speed of it spreading and containing the fire to a single area, companies can minimise the damage caused and make it easier to deal with themselves or for by fire services. 

The use of passive fire protection products and devices can help make this happen. For example, fire bags and pillows can be placed within the walls and ceilings of a building to prevent the passage of a fire and protect valuable cables. But how do they work?

Fire Bags

Fire bags are made from of different sized coated glass cloth bags, comprised with a mixture of durable intumescent and inert fillers. They act as a seal fitted around complex penetrations in walls and help to protect highly sensitive cable trays and electric cables. The bags can provide up to 2 hours of fire resistant protection, allowing time to contain the fire. 

Fire Pillows

Fire pillows are designed to protect metal services and cables for up to 4 hours from fire moving through compartment floors and walls. This gives companies and fire services a good amount of time to extinguish the fire before any cables get damaged. The intumescent material used within the pillows expands and hardens to form a protective layer, safeguarding cables effectively.

The use of fire bags and pillows to protect important cables within walls and ceilings is extremely important and should clearly be used in a fire safety plan to protect a building. 

Here at Surefire Passive our engineers will be able to select and install the correct fire bags and pillows for your requirements. If you would like to find out more about how we can help protect your business, please contact us now

Our Services Include

  • Fire Stopping Fire Line Compartmentation
  • Fire Protection Installation / Application Design & Specification
  • Fire Stopping Surveys & Maintenance
  • Fire Door Surveys, Install, Refurb, Replacement
  • Fire Risk Assessment
  • Fire Strategy Design
  • Passive Fire Stopping Seminars & Presentations ‘The Hidden Danger’
Contact Surefire Passive

Why Customers Trust Us

  • We had absolutely no idea what fire doors we had fitted in our building, Surefire Passive completed a full asset and identify areas for improvement.

    - Government Institution -
  • Cables and pipes had compromised our passive fire compartmentation over time, the Surefire Passive team provided a quick turnaround to survey and protect these areas.

    - Data Centre -
  • We had never looked above our ceiling tiles in the office or considered how a fire could spread so quickly, Surefire Passive have really helped to open our eyes to the hidden dangers.

    - Commercial Building Owner -

Technical guidance and drawings service to assist at planning stage.


Specification advice to identify the correct product for the risk.


Protecting our historic properties from fire.


Helping residential, commercial and industrial building owners to mitigate their fire risks.


Fully qualified Fire Engineers to help with the your fire strategy requirement and ongoing fire risk assessment needs thoughtout the life cycle of your building.


Surefire Passive will only ever use a single manufacturer system to create the perfect penetration and linear seal in your building. Ensuring your legal obligations / compliance with certified tested systems.