Passive fire protection that safeguards people, places and possessions
We specialise in the design and application of high-performance fire stopping systems.
Fire containment is key
Fire stopping is a vital part of passive fire protection, as it works silently behind the scenes to contain fire, smoke and toxic gases. In the process, it also prevents them from spreading between rooms, floors and even neighbouring buildings.
Fire stopping doesn’t just offer vital life protection – it also supports your building’s acoustic rating, improves thermal efficiency, and gives emergency services crucial time to act when every second counts.
Comprehensive and trusted fire stopping solutions
We use a wide range of third-party tested products to suit all environments and service penetrations. Every solution is installed to perform as intended in the event of a fire, giving you confidence in your compliance and the safety of everyone within your building. Below are some of the fire stopping systems we provide.
Ablative coated batt (or Fire Batt)
Fire batts are a cost-effective and versatile solution for sealing penetrations through walls and floors. Coated with a fire-resistant ablative layer, they can provide up to four hours of fire resistance, reduce sound transmission by up to 62dB, and support thermal and air sealing ratings.
Pipe collars, wraps and sleeves
These devices expand during a fire to close off plastic pipe penetrations. Ideal for use with UPVC, metal or composite pipes, they provide up to two hours of protection whilst being lightweight and easy to fit.
Putty pads
Applied directly by hand, putty pads are a simple solution for protecting electrical back boxes without the need for a baffle box. They remain pliable for life and also offer acoustic benefits.
Fire compound (fire-resistant mortar)
This gypsum-based material is ideal for sealing around pipes, ducts and cables in floors and walls. It’s quick-setting, non-shrinking, and supports load-bearing capacity once cured.
Mastic sealants
We use acrylic, high-pressure mastics to protect construction joints and seal gaps around service penetrations. These mastics are paintable, flexible, and offer up to four hours of fire resistance.
Fire rated foams
Flexible and versatile, fire rated foams are ideal for sealing around cables, trays and trunking. They’re re-penetrable, easy to install, and don’t require backfilling or additional sealing.
Fire stop coatings
Brush-applied coatings that enhance the fire resistance of batts, pipes and cables. Our single-layer products save time and reduce material waste, forming a durable, paintable finish.
We're In Compliance With
Protect lives with certified fire stopping solutions
Whether you need a full passive fire protection strategy or tailored remedial works, CMC Fire Stopping is here to deliver quality-assured solutions that meet your legal obligations and exceed expectations. To discuss your fire safety requirements, get in touch with our team through our contact form.
Why Choose Us?
Nationwide Coverage
Fast Response
Compliant with Regulation 38
Compliant with Regulation Part B
related case studies
Read our case studies to find out how we help businesses and organisations to prevent the spread of smoke and fire.
get in touch with cmc firestopping
Fill in our contact form to find out how we can help you to maximise fire safety across your premises.
FAQs
What is a fire stopping system and why is it needed?
Fire stopping systems seal gaps and service penetrations in fire-rated walls and floors to prevent the spread of fire and smoke. They’re legally required to maintain compartmentation.
What’s the difference between pipe collars, wraps and sleeves?
All three are used to protect pipework. Collars encase pipes externally, wraps expand around them internally, and sleeves are typically for cable trays or smaller services.
Where is ablative-coated batt used?
It’s used to seal larger openings in fire-rated walls or floors, typically around pipes or cables, and is coated with fire-resistant material to resist heat transfer.
Are fire-rated foams and sealants suitable for all penetrations?
No, product selection depends on the substrate, service type and fire rating needed. It’s essential to use the right material tested for the specific application.
How often do fire stopping systems need to be inspected?
Fire stopping should be reviewed regularly, especially after any building work. Annual fire risk assessments or compartmentation surveys often highlight when inspections are due.