Fire-stop penetration seals in Warendorf

Cable and pipe penetrations for walls and ceilings in Warendorf — approved, tested, documented. Promat, Hilti, Würth · S30 to S90 · existing stock, new build, retrofit.

Promat · Hilti · WürthExisting & newAudit-ready documentation
Warendorf

What a penetration seal achieves.

An F90-rated wall in Warendorf loses its function the second a cable, pipe or duct passes through it unprotected. Only the approved penetration seal restores that fire resistance — and only if the system used matches the opening size.

Penetration systems for Warendorf.

The system depends on opening size, occupancy density and wall type.

  1. 01

    Duct fire-stop

    Fire damper or duct seal — coordinated with the concept, integrated into the duct line.

  2. 02

    Pipe penetration

    Intumescent collar for plastic pipes, mineral wool insulation for steel — system-dependent, per approval, documented in the penetration plan. Documented in the property log in Warendorf.

  3. 03

    Combined seal

    Cable and pipe in the same opening — Promat combination, Hilti CFS-CT, Würth fire-stop solution.

  4. 04

    Cable seal in ceiling

    Vertical penetration — usually box-style, accessible from above, expandable for future cables.

  5. 05

    Cable seal in wall

    Classic in Warendorf stock: cables through F30/F90 wall, mineral wool with coating or board with collars.

  6. 06

    Stock documentation

    Take over multi-brand stock in Warendorf, consolidate in the penetration plan, prepare for consultant sign-off. Audit-ready in Warendorf.

Where we install seals in Warendorf.

Stock survey
Take over multi-brand stock in Warendorf, inspect, transfer into penetration plan, prepare for authorities. Standard scope in Warendorf.
Cable trays
Tray penetrations with box seals or aggregate seals. Standard scope in Warendorf.
Riser shafts
Floor-by-floor sealing — renovation, stock, retrofit in Warendorf. Standard scope in Warendorf.
Stairwell walls
Compartment boundaries with cable and pipe penetrations — mandatory at every building permit in Warendorf. Standard scope in Warendorf.
Duct lines
Fire dampers, duct seals — schools, care, offices in Warendorf.
Plant rooms
Boiler, distribution, transformer — high penetration density, consultant focus.

Standards.

  • DIN 4102-9
    Cable penetration seals

    Defines the S-rating for cable seals in Warendorf buildings.

  • EN 1366-3
    European classification

    EI rating for penetration seals — used parallel to DIN, EU-recognised.

  • MLAR
    Cable line directive

    Governs electrical line routing in fire protection — applies in NRW.

  • abZ
    Building-authority approval

    Every system carries an approval number — we deliver the documentation in Warendorf.

What penetration seals cost in Warendorf.

Ranges depend on opening size, density and system. Fixed quote after walkthrough.

  • from €80
    Small cable penetrationSingle cable, S30 with coating
  • €150 – €400
    Standard wall cable sealMineral wool + coating, medium density
  • €300 – €800
    Combined sealCable and pipe in one opening
  • from €600
    Duct fire-stopFire damper installed
  • Fixed price
    Stock survey & penetration planLump-sum after walkthrough in Warendorf

Fixed offer after walkthrough in Warendorf.

Fire stops in Warendorf — FAQ.

  • Yes — as long as each position has an approval and the documentation is consistent. We take over stock brand-neutrally.

Have your seals checked for Warendorf.

Walkthrough in Warendorf → defect list → fixed offer.

Call+49 2861 8114387