Get A Free Quote

Established by William Green, he continues to lead the company with over 35 years of roofing experience. Our knowledgeable employees work together to provide a seamless experience for your roofing project.

GAF CERTIFIED MASTER ELITE INSTALLER

FULLY INSURED & CERTIFIED

LOCALLY OWNED

An accreditation awarded to only 3% of roofing contractors

WSIB certified and as a member of the OIRCA, CRCA, and GVCA we are committed to maintaining our reputation as a leading roofing contractor

Our local contractors know what works best for your area!

Wm. Green Roofing is a GAF Master Elite certified installer, an accreditation awarded to only 3% of roofing contractors in North America. We are committed to maintaining our reputation as a leading roofing contractor in southern Ontario. We take great pride in seeing our client’s homes, buildings, and businesses reach their full potential. Contact us today for a free estimate. We’re excited to work with you

At Wm. Green Roofing we believe quality roofs comes down to three key elements:

QUALITY PRODUCTS

QUALITY INSTALLATION

QUALITY SERVICE

Wm. Green Roofing is rated 4.5/5.0 based on 39 reviews.

"...outstanding workmanship, and most importantly, a great crew and supervisors. I'll use them again, though it's unlikely I'll outlive the 50 year warranty. Highly recommended!"

"Amazing craftmanship and work quality! I would highly recommend Wm. Green Roofing. Thanks for such good work!"

"We are very pleased with our new roof. We would highly recommend Wm Green Roofing to our friends and neighbours. They were very professional and did an excellent job. The roof looks terrific!."

Carol M.

Conrad K.

James Deluca

© 2020 Wm. Green Roofing. All Rights Reserved.