Fire-stop penetration seals in Grefrath

Sealing what needs to be sealed in Grefrath and Kreis Viersen. Cable seals, pipe stops, combined penetrations. Soft, hard or mortar seals.

Walkthrough in GrefrathDefect list includedFixed offer
Grefrath

What a penetration seal achieves.

The right system depends on context. Mineral wool with coating handle most wall penetrations in Grefrath stock; hard seals go in for higher loads. Combined cable+pipe penetrations need a system that's approved for both.

Penetration systems for Grefrath.

We combine Promat, Hilti and Würth — system-open, brand-neutral in Grefrath.

  1. 01

    Duct fire-stop

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

  2. 02

    Cable seal in wall

    Classic in Grefrath stock: cables through F30/F90 wall, mineral wool with coating or board with collars. Audit-ready in Grefrath.

  3. 03

    Combined seal

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

  4. 04

    Pipe penetration

    Intumescent collar for plastic pipes, mineral wool insulation for steel — system-dependent, per approval, documented in the penetration plan. Audit-ready in Grefrath.

  5. 05

    Cable seal in ceiling

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

  6. 06

    Stock documentation

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

Where we install seals in Grefrath.

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

Standards.

  • DIN 4102-9
    Cable penetration seals

    Defines the S-rating for cable seals in Grefrath 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 Grefrath.

What penetration seals cost in Grefrath.

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 Grefrath

Fixed offer after walkthrough in Grefrath.

Fire stops in Grefrath — FAQ.

  • Yes — open seal, add cable, reseal. Standard service in Grefrath.

Have your seals checked for Grefrath.

Call us — we take over the seal stock in Grefrath and continue it.

Call+49 2861 8114387