Dennis is a leading expert in Indoor Air Quality and Environmental testing. He started DF Technical & Consulting Services Ltd. in 1998 which was acquired by MBC Group in 2019. As a well-respected member and leader of the industry, Dennis has been consulting throughout Canada and the United States, responding to concerns and catastrophes for over 20 years. He continues to be a source of knowledge and education for MBC Group’s consultants over all lines of business, as well as the broader population.