Fire resistance that's built in, not bolted on.
ASS-NBG GmbH plans and installs passive fire protection systems for structural steel, service penetrations and joints — engineered to hold their rating for the life of the building, not just the inspection.
A contractor that does one trade, properly.
ASS-NBG GmbH carries out passive fire protection measures for buildings of every kind — from structural steel encasements to firestop sealing systems that keep fire compartments intact when it matters most. We work alongside architects, general contractors and facility managers through the build and into the retrofit and maintenance phase.
The company is also structured to grow within its trade: we can take stakes in and cooperate with other businesses in the passive fire protection field, and set up branch offices or further companies as the work requires. In practice, that means a single point of contact whether the job is one sealed penetration or a full-building fireproofing package.
Passive fire protection, covered end to end
Every measure below is installed to match the fire-resistance class specified in your building's fire protection concept, then documented for the record.
Structural Steel Fireproofing
Intumescent coatings and board casings applied to beams and columns, sized to reach the required R-class.
R30 – R120Cable & Pipe Penetration Sealing
Certified firestop systems for cable bundles, pipes and ducts passing through fire-rated walls and floors.
EI30 – EI120Fire-Resistant Coatings & Renders
Reactive and cementitious coating systems for concrete, timber and steel substrates.
Interior & exteriorJoint & Gap Sealing
Fire-rated sealants and compression seals for expansion joints, linear gaps and service voids.
Linear jointsFire Doors & Dampers
Supply, installation and scheduled maintenance of certified fire doors, dampers and smoke curtains.
Supply + installInspection & Consulting
Condition surveys and gap analysis against the building's fire protection concept, with a remediation plan.
Survey & reportFireproofing is the only trade we do
One trade, one standard, every site.
Because passive fire protection is the whole business, it's the only thing we have to get right — not a line item on a bigger contract.
Documented installs
Every seal and coating is logged against its product datasheet and approval, so you have a record for your fire protection file — not just a sign-off.
Site-first scheduling
We plan around your construction sequence — trailing MEP fit-out, working ahead of drywall closure — instead of asking the site to work around us.
Straight answers on scope
A site assessment tells you what's actually needed to close the gaps in your fire protection concept, before any material is ordered.
A partner past handover
Buildings get altered. We're set up to come back for later refits, additions and re-inspections, not just the original install.
Tell us about the site
Send us a few details about the building and the works involved, and we'll come back with next steps — usually within two working days.