J.D. is Indoor Environmental Management’s Operations Manager. With a background in Engineering, John Hassler, Jr. is a valuable asset to the team. He has gone through many hours of through training to increase his knowledge of the industry. J.D.’s certifications include CMR, CIE, and most recently is a certified radon mitigation and measurement technician through the National Radon Defense program.
“John Hassler and the entire team were true professionals.”Read Full Testimonial
“The basement already feels drier. Mr. Hassler is such a great guy, I have already referred him and Indoor Environmental Management to my neighbors and...”Read Full Testimonial