For GRD and Flex Duct Technical Service call 616-656-8377.

For Vent & Chimney Technical Service call 1-800-669-3190.

Technical Service for Vent, Chimney, and SMART can be reached at 616-656-8384.

Technical Service for Vent and Chimney can also be reached at 740-385-5666.

To expedite your service and avoid confusion, please work with only one contact on an issue unless instructed otherwise.