Fire Stopping Contractors

Fire stopping and penetration sealing is the meticulous process of filling gaps or voids in a building’s walls, floors and ceilings. These penetrations are created when installing services like pipes, electrical cables, and ventilation ducts. Sealing these openings prevents the spread of flames, smoke and toxic gases in the event of fire. Fire stopping is an essential part of passive fire protection, designed to save lives and safeguard your property.

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Fire Stopping Installations & Maintenance

Effective fire stopping contractors ensure fire compartmentation lines in your building are maintained, delaying the passage of flames, smoke and toxic gases in the event of a fire. Penetration sealing is a critical element of a building’s passive fire protection strategy. The objective is to seal any gaps that could allow flames and smoke to spread, putting both your building and its occupants at risk.

Adaston is one of the UK’s leading fire stopping contractors, providing quality services nationwide. We work with you to create bespoke solutions, delivering market-leading systems on time and on budget. Incorrectly installed passive fire stopping measures are dangerous, ineffective and non-compliant. It’s therefore essential to work with specialist third-party accredited fire stopping contractors, like the highly experienced team at Adaston, for both installation and maintenance.

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Fire Stopping

Fire Stopping Services

Fire stopping services require specialised skills and should always be completed by a competent person with a high level of training, experience and knowledge of relevant products. At Adaston, our expert and IFC-accredited operatives provide a comprehensive range of fire stopping services across all sectors.

We inspect, install and maintain penetration sealing systems throughout building compartments, including elements such as cables, pipes and voids. All work is carried out with meticulous attention to detail and expert building compliance knowledge.

Our key objective is to make your building safe and compliant again by:

  • Reinstating fire stopping around service penetrations
  • Fixing damaged fire stopping seals
  • Remediation when the warranty on initial work has expired

As part of our fire stopping services, we factor in acoustic ratings and thermal properties, ensuring they adhere to strict regulatory guidelines and meet all building fire strategy requirements. Regardless of the size of the building or estate, Adaston provides tailored solutions ensuring total legislative compliance and maximum fire protection.

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Our Process

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Scope of works and deliverables agreed • Full fire strategy of the building provided by the client • Deadlines and timetable agreed, including any out of hours work required



Work as agreed in the scope is coordinated and performed • This will be delivered by our in house firestopping team accredited by IFC and cleared and insured



Finalise and issue our tailored report detailing findings from the scope of works • Adaston advise on next steps if required and provide continued support


Frequently Asked Questions

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  • What is Fire Stopping and Penetration Sealing?

    In short, penetration sealing is a form of passive fire stopping that is used to seal joints in a building and openings caused by installing services. Penetration sealing prevents the spread of flames and smoke between fire compartments. This involves the use of:

    • Intumescent mastic sealant
    • Fire barriers
    • Duct sleeves and wraps
    • Pipe wraps and collars
    • Fire pillows
    For more information, read our blog on penetration sealing systems.

  • Where is Penetration Sealing Needed?

    Penetration sealing is necessary to remedy any gap or opening within a building’s lines of compartmentation and ensure a functional passive fire protection system. Areas requiring attention include:

    • Gaps between floors, walls, windows, and doors
    • Voids in dry walls and masonry walls
    • Ducts which provide ventilation
    • Holes made to install pipes, wires and electrical systems
    These gaps undermine your fire safety system by allowing flames and smoke to spread through a building in the event of fire. Fire stopping seals these gaps and voids, thereby reinstating fire compartmentation, and ensures the compartment line will achieve the required level of fire rating.

  • Why Is Fire Stopping and Penetration Sealing Important?

    By delaying the spread of fire and smoke during the event of a fire, you offer greater protection to those inside the building by retaining fire compartments. This maximises the amount of time to evacuate and allows for the emergency services to do their job. Fire stopping raises the fire safety standards of a building and therefore is hugely important.

  • Fire Stopping Installation

    A fully third party accredited contractor such as Adaston is the only way to guarantee quality fire stopping installations. We work to British Standards, such as BS 476 and BS EN 1366, which provide guidelines for fire stopping installation, including the types of products that should be used and the performance criteria that they must meet. We pride ourselves on giving advice you can trust regarding any installation or remediation needs that your building requires.

  • Who is Responsible?

    The responsibility for regular fire safety surveys which check all parts of a passive fire protection system, including fire stopping, lies with the building’s ‘responsible person'. Generally, this is the organisation or landlord who owns or has accountability for the building. For further information on current legislation, explore our news articles.