Fire Stopping is the sealing of any openings to prevent fire (including smoke and heat) from passing through multiple building compartments. The spread of a fire is contained by creating fire resisting compartments.

Penetration seals are vital in upholding compartmentation to prevent the spread of fire within a building. Penetration systems are a primary requirement of the fire safety design in all buildings.

The service penetration systems we provide and install are cost-effective and prevent the spread of fire, smoke and toxic gases through any gaps in the walls of a structure.


These sealing systems include Intumescent mastics, Ablative Batts, fire barriers and fire compounds.

Lantern Fire Prevention can provide all these services and installations as part of the passive fire protection work we undertake for major clients across the UK.

Fire Stopping Services

Penetration Seals


Penetration seals form a critical element of the life safety strategy of buildings fire penetration products are designed to seal gaps and voids formed by piping, cables, wall spaces and other services which penetrate compartment walls and floors, where flames and smoke could spread in the event of a fire.

The importance of fire stopping service penetrations in a fire barrier cannot be overstated, when installed correctly it can mean occupants within a building can leave a burning building safely.

At Lantern Fire Prevention  we take our responsibility to building users seriously, we install a comprehensive selection of products that have been specifically engineered to combat fire spreading – buying valuable time for occupants to escape and for fire services to arrive. we install our fire stopping products to manufacturer’s instructions by our teams who are trained at our dedicated training centre.

During our fire stopping works, our fully trained installers will install or apply products such as ablative coated fire batts, intumescent acoustic sealant, high expansion sealant, Intumescent wraps, pipe collars and fire compound load bearing floors to name a few.

Linear Joint & Gap Penetration Sealing

Fire stopping at linear joints within wall cavities and voids is crucial for reducing the spread of flames and smoke. Linear Joint Seal is designed to accommodate structural movement in these areas whilst maintaining fire performance and acoustic properties of walls and floors.

Fire Boarding

Fire boarding uses fire-resistant boards for structural steel encasement that have been treated with non-toxic additives to protect them from fire.

We cover all wall lining applications, from high-performance solutions that meet thermal, acoustic, fire-protection or impact-resistance requirements.

Linings can be fully or partially independent of the structure, These systems can be used in all types of buildings and are equally suited to both new-build and refurbishment work


Steel framework fire boards, can be made with materials like gypsum and glass fibres, which help to keep the boards together should they come into contact with heat. 

Air Transfer Grilles

Air movement in a building is important. Grilles are fitted into walls and some doors; and ductwork to keep fresh air circulating.

But wherever air moves, fire and smoke can travel too. In a fire, our intumescent air transfer grilles expand to form a solid block that stops fire spreading. 


Wherever ventilation is needed through a fire-resisting wall or where ductwork runs through that wall, an intumescent air transfer grille should be fitted at that point to maintain fire compartmentation. Smoke protection is also vital. 

Cavity Walls

We offer a range of fire barrier services that work to prevent the rapid spread of fire within concealed spaces.  

They are specifically designed to provide cavity fire protection by creating resistance to fire spreading in spaces like ceilings and roof voids, and come in a range of options, both flexible and rigid for the right fitting protection within your building. 


Our fire barrier systems are a solution to internal horizontal voids around building perimeters between floor slabs and the building envelope. In the event of fire, cavity barriers will expand and seal the void to slow the burn and extend time, offering invaluable and life-saving solutions.

Fire Stopping Survey

A Fire Stopping Survey is an integral part of a passive fire protection plan. Without the proper preventative measures in place, a fire can rapidly spread through the structural integrity of a building putting many lives at risk.

Our Five Step Process

  1. Identify the problem

  2. Find a solution

  3. Install the solution

  4. Recording our actions

  5. Retain and Share the evidence