Satisfied Customers At GM Exteriors, we have had the privilege of providing customized siding and cladding services to most of Southern Ontario’s finest home builders. From individual home owners to the largest new home builders, from developers to government agencies and from Kingston to London, we have worked on projects of all types. We look […]

Rest Easy With Consumer-Friendly Warranties Be confident in your investment. GM Exteriors’ products are backed with generous manufacturer warranties, including 15-year warranties on some finishing products to 30-year limited warranties on most siding options. In addition, GM Exteriors maintains a 2 year installation warranty on all products we install, providing you with the reassurance that […]

Build Your Future with GM Exteriors GM Exteriors is always looking for experienced installers and other professionals to join our staff. “Since our inception we have specialized in siding and cladding, providing thousands of Ontario homes with exceptional exteriors, and our qualified staff is fundamental to our success. We offer a productive work environment with […]