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Request penetration seals.
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↳ Services / Penetration Seals
Penetration seals
Cable, pipe and mixed penetration seals for walls and ceilings. Fire- and smoke-tight closures using all common systems — soft seal, mortar, cushion, modular. Compliant installation, documentation and labelling, in new build and existing stock.
↳ Manufacturer-independent
Clean penetration seal with system label
↳ What is a penetration seal?
Keeping fire and smoke in the fire compartment.
A penetration seal is the fire- and smoke-tight closure of a service penetration through a fire wall or ceiling. Its task: keep fire and smoke in the affected fire compartment. The fire resistance of the seal must match that of the surrounding wall — an F90 wall demands an S90 or R90 seal. Classified per DIN 4102-9 (national: S30/S60/S90/S120 for cable, R for pipe) or EN 13501-2 (European: EI). Penetration seals are a mandatory element of every fire protection concept and are governed by the model line-installation directive (MLAR) and, in NRW, by the LAR NRW.
↳ Our services
From initial sealing to retrofit.
We plan, supply and install — manufacturer-independent and with complete documentation.
- ↳ 01
Initial sealing in new build
Including planning, material, installation and documentation — coordinated with electricians and other trades.
- ↳ 02
Retrofit in existing buildings
Compliant retrofit of open or defective penetrations — including during live operations.
- ↳ 03
Re-occupancy
Adding cables or pipes through existing seals — only with approved systems.
- ↳ 04
Defect remediation
Complete defects lists from fire inspections or expert reports in one engagement.
- ↳ 05
Documentation
Declaration of conformity, photo record, as-built plan, seal numbering — digital and audit-proof.
- ↳ 06
Maintenance & periodic inspection
Optional: maintenance contract with annual inspection of all seals.
↳ Frequent questions
Penetration seals — explained.
↳ See also
Related services.
Cable seals — overview →
Pillar covering wall, ceiling and retrofit.
Cable seal — wall →
For concrete, masonry and drywall.
Cable seal — ceiling →
With protection against the chimney effect.
Cable seal — retrofit →
Process complete defects lists in one engagement.
Fire-protective cladding →
Complementary for cable trays and steel structures.
Maintenance & inspection →
Periodic inspection of all fire protection installations.
↳ In detail
Related services in this area.
02a
Cable seal →
Fire protection for cable penetrations — compliant installation. Cable trays are the most common fire protection defect in buildings. We seal wall and ceiling penetrations to standard — from initial sealing in new build to retrofit in existing stock.
02e