LFS fire stoppingLFS offer a full range of fire stopping solutions to ensure that walls, roofs, floors, service risers and voids retain their fire resistance.

All of our products are tested in accordance with BS476 parts 4, 20 and 22 and/or EN 1366-3. We work closely with manufacturers to ensure usage matches testing – from straight forward to more complex penetrations.

Correct Installation is vital. Fire stopping is a complex process and materials will only perform effectively if they are installed in accordance with test certification and manufacturer’s instructions. This is often overlooked resulting in fires that should have been prevented or at least contained.

LFS are certified FIREFLY Installers  – a product which has been developed as an alternative fire barrier to asbestos! 

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LFS are fully qualified to meet any fire barrier requirement. There are various types of fire barriers providing several levels of fire integrity and insulation depending on the project specifications. Fire barriers are installed within ceiling voids, roof voids or under flooring to provide compartmentation of structures which prevents the movement of smoke or flames.


Fire curtains prevent the spread of fire and smoke through voids and also provide compartmentation between different areas within a building.

We can install and maintain both lightweight flexible fire curtains and insulating fire barrier curtains to provide up to 120 minutes fire protection in both occupied and void properties. This includes lofts, ceiling voids and risers. The fire curtains will ensure no fire or smoke can spread from one compartment to the next.

Our roof void surveys will identify what is needed to ensure buildings meet regulations and also that fire compartment walls are continued above the ceiling and into the roof void. If needed we can also provide and install fire-rated access hatches, walkways and handrails for the roof space as well as improving its insulation.

All fire curtains installed by LFS are fully tested, certified and comply with the relevant BS or EN standards.


PART L2 of the Building Regulations (conservation of fuel and power) includes a test for air leakage.

Buildings requiring compliance to part L2 with a gross floor area of greater than 500m2 will require an air leakage test carried out in accordance with ATTMA technical standard 1 (2006) and must be shown to leak no more than 10m3/hr/m2 @ 50Pa or less than the figure given in your SAPS calculations. LFS can carry out the air sealing you need to meet your requirements.


Acoustic sealing work is necessary to reduce the sound that travels from one compartment to another. LFS can carry out works to meet the required sound reduction and decibel (db) rating through installation of acoustic blankets, seals and barriers.


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Contact Info

t: 0800 035 6827 (freephone)
t: 0207 237 0958

Unit 7, Glengall Business Centre, Glengall Road, London SE15 6NH

Daily: 8:00 am - 5:00 pm
Sunday: Closed

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