Certifications & Proof
Verified quality for refrigeration, HVAC, and ventilation. Download our most important certificates as PDF.
Transparency builds trust
Our qualifications are documented and available for download. View each certificate online or save it as a PDF.
Company certificates
Official certifications and company-level proof.
Company certification
Company certification (ChemKlimaschutzV)
Proof of company certification for refrigeration and climate protection.
Tax certificate
Tax exemption certificate (Section 48b EStG)
Tax exemption certificate according to Section 48b EStG.
Chamber of Crafts
Crafts registration card
Registration as a certified refrigeration & HVAC company.
Personal qualifications
Certifications and trainings of the responsible specialists.
Professional certificate
System design for chilled water and brine systems
Qualification for planning and designing chilled water and brine systems.
Hygiene training
Hygiene training for HVAC systems (VDI 6022)
Training for hygiene requirements on HVAC systems according to VDI 6022.