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QUALITY standards

Customer satisfaction, safety and sustainability


We operate various management systems to ensure that our services meet high standards of quality, occupational safety and environmental protection.

To ensure maximum customer satisfaction, safety and sustainability, our extensive management systems are subject to regular internal and external audits. All Klüh’s divisions and branches have implemented the management systems and operate conscientiously in compliance with these standards.

The high degree of responsibility displayed by Klüh is reflected in our quality and environmental management.


EN ISO 9001
PDF 3.02 MB
EN ISO 14001
PDF 0.4 MB
EN ISO 45001
PDF 2.22 MB
EN ISO 50001
PDF 0.57 MB
SCC Regulations
PDF 1.42 MB
DIN 77200
PDF 1.50 MB
EN ISO 13549
PDF 1.20 MB
CO2 Emissions
260 KB

The divisions are certified to DIN EN ISO 9001 (quality management system), DIN EN ISO 14001 (environmental management system), DIN EN ISO 50001 (energy management system) and DIN EN ISO 45001 (occupational health and safety management system).

Through its management system for occupational safety, health and environmental protection in accordance with SCC regulations, Klüh ensures the safety of its employees and the environment. The Security Division is additionally certified to DIN 77200-1:2017.

As a quality service provider, Klüh Security was one of the first companies in the industry to obtain this certification. The division also operates an intervention unit recognised by VdS, Germany’s prestigious security institution.

Our innovative DigiClean® quality management tool is certified to DIN EN ISO 13549 (Cleaning services – Basic requirements and recommendations for quality measuring systems); by using climate-neutral rubbish bags, Klüh is actively reducing CO2 emissions.


We are a member of ISSA – The Worldwide Cleaning Industry Association and hold one of the ten seats on the body’s Innovation & Education Committee. With 9,300 members, ISSA is the leading international trade association for the cleaning industry. Our membership helps us to improve efficiency and acquire new knowledge, benefiting our clients around the world.


We are a member of GEFMA, the German Facility Management Association. Around 56% of the body’s 1,000-strong membership is made up of facility management customers; the remaining 44% are facility management service providers. GEFMA is an industry-leading and market-defining institution that sets standards, builds stronger networks and generates knowledge.