Fire Stopping
At BritCut, we provide fully certified fire stopping and passive fire protection services across London, Kent, and Essex.
Over 40 Years
Experience
Experience
Fully Accredited, Experienced
Trained Operatives
Trained Operatives
Free Site Visits and
Specialist Advice
Specialist Advice
Network Rail
Approved Contractors
Approved Contractors
Nationwide
Coverage
Coverage
Fire Stopping Services
Fire stopping is a critical element of passive fireproofing for any building type. It is also known as compartmentation, and it refers to the process of filling openings and joints with fire resistant material with its sole purpose being to prevent or slow down the spread of fire and smoke by keeping it within the fire stopped zones, savings lives and assets.
When installed correctly, fire stopping measures can contain a fire for up to four hours, giving plenty of time to ensure that everyone on the premises is safe and that the building has been fully evacuated.
Contact BritCut for expert fire stopping measures across London, Kent and Essex.
Why choose BritCut for your Fire Stopping
Our team ensures that every wall, floor, and service penetration is properly sealed to maintain fire compartmentation and protect life, property, and structural integrity in the event of a fire.
Our team ensures that every wall, floor, and service penetration is properly sealed to maintain fire compartmentation and protect life, property, and structural integrity in the event of a fire.
Call us now to schedule a free site survey.
What Is Fire Stopping?
Fire stopping is the process of sealing openings and gaps in fire-resistant walls and floors to prevent the spread of flames, smoke, and toxic gases.
These systems are a key part of passive fire protection, helping buildings meet legal fire-safety requirements such as Approved Document B and BS 476 / EN 1366.
Properly installed fire stopping can mean the difference between containing a fire and catastrophic loss.
Where Fire Stopping Is Needed
Fire stopping is essential wherever services or structural elements penetrate fire-rated walls, floors, or ceilings — such as:
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New-build and refurbishment projects
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M&E installations and riser shafts
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Service penetrations for pipes and cables
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Curtain walling and façade interfaces
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Plant rooms and service corridors
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Structural steel protection in car parks and warehouses
Our Fire Stopping Services
We provide a complete range of fire-stopping solutions, including:
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Intumescent coatings – expanding materials that protect structural steelwork and load-bearing elements.
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Cavity barriers & fire batts – stopping smoke and flames spreading through concealed voids.
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Pipe and cable penetration seals – maintaining compartmentation where M&E services pass through walls or floors.
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Fire-rated sealants & collars – flexible solutions for irregular gaps and building movement.
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Structural fire protection – coatings and wraps for beams, columns, and ductwork.
All work is installed by trained operatives and completed to third-party certification standards.
Fire Stopping Near You
BritCut operates nationwide from our base in Dartford, Kent. We provide fire stopping installation and surveys across all major UK cities and regions. View our full list of fire stopping locations across the UK for local information on your area, or call us on 01322 221533 to confirm attendance at your site.
Frequently asked questions — fire stopping
What is fire stopping?
Fire stopping seals penetrations and service openings in fire-rated walls, floors and ceilings to restore and maintain passive fire protection. Any pipe, cable, duct or conduit passing through a fire-rated element must have a compliant fire stop installed to prevent fire and smoke spreading through the opening.
Why is fire stopping legally required?
Untreated penetrations through fire-rated compartments allow fire and smoke to spread unseen through a building far faster than through open spaces. Compliant fire stopping maintains compartmentation — the primary passive defence that gives occupants time to evacuate and limits structural damage. It is a requirement under the Building Regulations and the Fire Safety Act.
What types of fire stopping do you install?
BritCut installs intumescent collars, wraps and sleeves for plastic pipes; mineral wool and intumescent sealant systems for cable penetrations; fire-rated boards and pillows for open service voids; and intumescent coatings for structural steelwork. We also install and survey fire doors.
Do you provide certification for completed works?
Yes. All fire stopping installations are documented with photographic evidence and completion certificates. For larger projects we provide a full passive fire protection register — essential for building compliance, insurance, and future fire risk assessments.
Can you carry out fire stopping surveys as well as installation?
Yes. We survey buildings to identify non-compliant or missing fire stops, producing a full schedule of remedial works. This is particularly valuable during refurbishment, building acquisitions, or following a change of use.
Are your operatives qualified for this work?
Yes. Our operatives are trained in passive fire protection installation. We are CHAS and ConstructionLine accredited and NSCC members. All work is carried out in accordance with relevant British Standards and manufacturer specifications.