Coltzer Company

Established in 2009, Z6 Commissioning, LLC (Z6) is an industry leading commissioning, windstorm and stormwater engineering firm that also provides ISO-accredited building performance testing both in the field and laboratory settings. Z6 is a licensed engineering firm in the state of Texas (F-18972) that has been certified by the ANSI-ASQ National Accreditation Board (ANAB/ILAC) as an accredited organization (certificate AT-2090) that meets the requirements of the International Standard ISO/IEC 17025 while demonstrating technical competence in the field of Testing in Construction Material / Mechanical. Building Owners working with an ISO-accredited lab are assured testing is conducted under an accredited quality management system that is compliant, reliable, based on the latest technical requirements and undergoes an extensive annual external ANAB audit. Based on Z6’s extensive building envelope testing experience, Z6 is frequently asked to develop test protocols for conditions where a standard test protocol may not exist to ensure that installed systems interface as intended and workmanship meets the international standards of performance. Z6 Commissioning, Performance Assurance for your peace of mind.