Fire-resistant seals & penetrations

Certified sealing of cable, pipe, and duct penetrations so that fire and smoke compartments remain intact.

Certified in accordance with

VCA-certified ISO 9001 Kiwa K21050

Trusted by, among others, DNB · WTC Amsterdam · Cooltower · ASML

Every cable, pipe, or duct that passes through a fire-resistant wall or floor is a potential weak point. Unsealed penetrations are one of the most common causes of compartmentalization failure during a fire.

We seal penetrations with certified collars, fire-resistant sealant, mortar, and mineral wool plugs, so that the fire resistance of the separating structure (WBDBO) remains intact.

What you can expect

Exclusively certified sealing materials and systems
Suitable for cable bundles, pipes, ducts, and combinations thereof
Preservation of the WBDBO of the separating structure
Clear marking and registration per penetration

Applications

Technical rooms and shafts Office and commercial buildings Parking garages Healthcare and educational buildings

Standards & certification

NEN 6068 and NEN 6069
NEN-EN 1366-3 (seals) and NEN-EN 1366-4 (joint seals)

Our team works VCA-certified and our organization is ISO 9001 and Kiwa (K21050) certified.

More about our certifications

Costs

What do fire-resistant seals cost?

Seals are usually quoted per penetration or per linear meter of joint. The price is determined by the type of penetration (single cable, cable bundle, metal or plastic pipe, combination), the wall or floor type, the required WBDBO, and accessibility. A large catch-up project with hundreds of penetrations has a lower unit price than individual reports. Registration in the logbook is included in our price as standard.

Request an itemized quote First take the quickscan

Common mistakes

Pulling a new cable through an existing, certified seal without recertifying it.
Choosing the wrong system for the combination of cables and plastic pipes in a penetration.
Not registering seals, making it impossible to demonstrate what was done during an inspection.

Our approach

This is how we approach it

Survey & quote

We map out the situation and provide a detailed quote with scope and schedule.

Certified execution

Our VCA team carries out the work in accordance with applicable NEN standards, with minimal disruption.

Delivery & logbook

You receive a delivery file and digital logbook, and a maintenance contract if desired.

View our full process

Frequently asked questions

Questions about fire-resistant seals

Do all penetrations need to be registered separately?

Yes. Every seal is recorded in a logbook with location, material and installation date, so this is demonstrable during inspections.

What happens if a new cable is added later?

The new penetration must be resealed with certification - otherwise the certification for that opening lapses. This can be done as a stand-alone service or within a maintenance contract.

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