TOPP has specialised in passive fire protection since 2001 from Mazańcowice in Silesia, installing service penetration seals, cable fire protection, expansion-joint seals, the fireproofing of steel and reinforced concrete structures, fire-rated enclosures and tunnel work. Its certificates page publishes six applicator certificates from the manufacturers whose systems it applies — svt Brandschutz, Alfaseal, Alfaseal and Nullifire, Carboline, Sherwin-Williams and Hilti. It works closely with svt Brandschutz under the PYRO-SAFE brand and also resells fire-resistant materials. As Poland has no installer register, manufacturer certification is the only third-party evidence obtainable in this trade.