Christopher Collett & Associates Ltd. is a research and consulting company based in Vancouver, British Columbia and founded in 1995.  We offer a full range of indoor air quality (IAQ) consulting services to owners, building designers, constructors, operators and tenants of commercial, institutional, industrial and residential buildings.

Christopher Collett & Associates Ltd. has conducted LEED IAQ testing in 180 projects in Western Canada, including British Columbia, Alberta, Saskatchewan and the Yukon.

Our company is the industry leader in Canada for IAQ testing for LEED and other Green Building Certification programs.