Certified Quality

The Matthäi Group is very much aware of its special responsibility towards its customers and employees in its daily business. This responsibility is the reason for our high quality standards – and we meet these every day. This is reflected by the certification of our quality and services.

Deutscher Abbruchverband (German Demolition Association)

Pre-Qualification VOB (German Contract Procedures for Construction Work)

Qualitätsgemeinschaft städtischer Straßenbau (Quality Alliance for Urban Road Construction)

TÜV Nord

SCCP Certification


ISO 9001 Certification

Deutscher Verein des Gas- und Wasserfaches e.V. (German Association of Gas and Water Specialists)

RAL Quality Seal

RAL Quality Seal

RAL Quality Seal

RAL Quality Seal

AMS BAU Quality Seal

DIN ISO 50001:2011


SCL Level 3