Fire Cavity Barrier Installation Services
We specialise in the installation of fire cavity barriers, offering comprehensive turn-key solutions for fire barrier installation in various building environments.
Our approach combines technical expertise with an uncompromising commitment to safety, compliance, and long-term protection. We build lasting partnerships with our clients, ensuring every installation meets both regulatory standards and real-world performance expectations.
We work with a wide selection of fire-stopping systems from trusted manufacturers, enabling us to specify the right solution for each project. Whether your site requires mineral wool cavity barriers, intumescent products, open-state systems, or a hybrid configuration, we tailor every installation to the needs of the building, its occupants, and its fire strategy.
What are Fire cavity barriers and why are they important?
Fire cavity barriers are designed to restrict the spread of fire and smoke within concealed spaces such as wall cavities, floor voids, and roof zones. Without them, fire can move quickly and unseen through a building’s structure, bypassing other passive fire protection measures.
They work by sealing gaps and voids within the construction. Intumescent cavity barriers, for example, expand in response to heat, forming a tight seal that blocks fire and smoke migration. Other systems offer open-state functionality, allowing ventilation or drainage in normal conditions, but closing under fire. Their correct installation is critical to a building’s compartmentation strategy - and a legal requirement.
Keep your cavity barriers compliant with our pre-planned maintenance (PPM)
Over time, factors such as building movement, wear and tear, renovations, or even accidental damage can compromise the integrity of cavity barriers, therefore regular inspections are required to help identify any issues early.
With pre-planned maintenance, you can avoid unexpected costs and unnecessary downtime, whilst making sure your assets continually perform at their highest standard. Through continued repair and remediation, you can also prevent small issues from snowballing into larger problems, which can lead to unnecessary new installations. Find out more about Pre-Planned Maintenance.

Why choose us?
When it comes to fire cavity barrier installation - experience, compliance, and reliability are critical.
Our team combines unmatched expertise with a meticulous approach to ensure every installation provides robust, lasting protection.
Our specialists, including former FIRAS inspectors, ensure your cavity barriers meet regulatory standards, with transparent documentation, rigorous quality control, and dedicated ongoing support, we don’t just deliver safety we deliver confidence.
Our accreditations
Safety comes first: we’re proudly accredited by FIRAS and LPCB, which are internationally recognised as benchmarks of excellence in fire protection.
Knowing that our team is fully accredited brings more than peace of mind - it ensures that your fire door installation meets the highest industry standards, assuring best practices are followed to safeguard your premises and occupants.

Working transparently through Onetrace
Having a clear record of all maintenance, repairs and replacements completed on your fire doors is essential for demonstrating compliance within the Golden Thread of building safety.
To assist in showcasing transparency and accountability, all of our work is completed through the Onetrace system.
Having access to Onetrace means that all our clients have a clear record of all essential information relating to your project, plus they can track the progress of ongoing projects in real time.

Strengthening Compliance with Bolster Systems
For projects that demand rigorous documentation and high-level oversight, we also utilise Bolster Systems - a robust platform designed to support passive fire protection management from survey to sign-off.
Bolster allows us to record, map, and manage every fire stopping application across a site, creating a digital record complete with product data, installation detail, and photographic evidence.
This not only simplifies compliance for complex builds, but also gives clients and stakeholders confidence in the quality, consistency, and auditability of every seal and penetration treated.
Our protection promise
At Strategic Fire Protection, we have a non-negotiable passion for protection.
We provide all of our clients with uncompromising quality, complete compliance, and enduring peace of mind. Leveraging deep industry expertise and a proactive commitment to excellence, we ensure every solution meets the highest standards from day one.
It's not just about the service we delivery too, it's how we deliver it - at the heart of our company values are partnership and communication, and you'll always find the same friendly face at the other end of the phone. Whether you have a question around logistics, compliance or costs, our close-knit team are on hand to assist.
Looking for expert Fire Cavity Barrier installation?
Contact usFire cavity barriers prevent fire and smoke from spreading undetected through hidden spaces such as wall cavities, roof voids, and floor gaps. Often, cavity barriers are made from intumescent materials, meaning they expand when exposed to hear, filling any gaps in your fire protection so that your fire doors and fire compartmentation, functions as intended.
Cavity barriers should be fitted as close as practicable to the edge of every void: around windows, doors, service vents and parapets. They must also be located wherever the cavity meets a compartment wall or floor.
An open state barrier allows limited airflow or drainage in normal conditions but seals when exposed to fire, usually by expanding. Closed state barriers are always sealed and act as a permanent block to smoke and flame. The type used depends on location and façade design.
A competent inspector should check that barriers are in the correct locations, tightly fitted, fixed securely and free from gaps. They must also confirm that the products match the tested specification for that wall system before any covering is applied.
Under the Building Safety Act 2022, higher-risk buildings must retain a secure, digital, up-to-date record of all design, construction and fire protection throughout the building’s life. This “golden thread” supports safe management and makes future works easier to update without disrupting your buildings passive fire protection.
We track and report on progress using two different platforms primarily. Onetrace gives you a live, photo‑verified log of every fire door inspection, repair and installation, while Bolster maps large‑scale fire‑stopping works to digital floor plans with QR‑coded evidence. Together they provide an auditable Golden Thread of information, so you can prove compliance instantly, track progress and plan future works with confidence.
FIRAS is an independent, third‑party certification scheme that audits both our onsite workmanship and quality‑management systems for passive fire protection. Holding FIRAS certification proves our staff are competent, our processes are robust, and every project receives external quality checks.
The Loss Prevention Certification Board (LPCB) is a world‑renowned approvals body that sets performance standards for fire protection products and installers. LPS 1531 relates to the installation and maintenance of passive fire protection systems. Certification confirms our work meets these internationally recognised benchmarks.
Third‑party accreditation means an external body routinely verifies our competence, processes, and completed work. This impartial oversight provides objective evidence that your fire protection solution performs as claimed and complies with the latest regulations.