Metal Shingles Markham, ON Review 🇨🇦 — November 24, 2020 | Interlock®
Markham, ON
What was involved in this Interlock® Slate roof installation in Markham, ON?
Interlock installed an Interlock® Slate system in Black on a home in Markham, ON, completed November 1, 2020. David and Jackie B. rated the work 5 out of 5 in an independent survey conducted by GuildQuality on November 24, 2020. Likely To Recommend scored 5 out of 5. The installation was carried out by Interlock Roofing. The roof has been in place 5 years and remains under Interlock's lifetime limited warranty.
Tony Alpalfa, the installer, was amazing. I even had a comment from my builder when Tony was installing one of the valleys. My builder said most installers would have the valley installed in 5 minutes. Tony took 30 minutes as it was a challenging valley to install.
This review was collected by GuildQuality, an independent third-party customer-satisfaction survey firm, on November 24, 2020. Interlock does not edit responses or choose which are published. View the original survey response.
Detailed Ratings
Roof Details
Roof Installation Location: Markham, ON
Roof Installation Year: 2020
Roof Age: 5 years, 10 months, 7 days
Review Submitted: 0 years, 0 months, 23 days after completion date
Roof System: Interlock® Slate Metal Roofing
Roof Color: Black
Local Interlock Roofing Company Near Markham
Interlock Metal Roofing (Ontario) Ltd.
Serving homeowners across Kitchener, Guelph, and nearby cities since 1998, Interlock Metal Roofing (Ontario) Ltd. provides durable, low-maintenance aluminum roofing systems that redefine long-term protection. Each roof is built to withstand snow, rain, and high winds—common in Ontario’s heartland—while boosting home energy efficiency and resale value. With factory-trained installers and a lifetime warranty, we’re proud to deliver roofing solutions that combine sustainability, performance, and timeless design.