Metal Shingles Cornwall, ON Review

Cornwall, ON

★★★★★Derek and Lisa H.Reviewed November 30, 2024 · via GuildQuality

What was involved in this Interlock® Slate roof installation in Cornwall, ON?

This project used an Interlock® Slate system in Black on a home in Cornwall, ON, completed June 17, 2024. The project covered roughly 20 squares of roofing. Derek and Lisa H. rated the work 5 out of 5 in an independent survey conducted by GuildQuality on November 30, 2024. Professional Completion scored 5 out of 5. The installation was carried out by Interlock Metal Roofing (Ontario) Ltd..

★★★★★

Derek and Lisa H.Cornwall, ONReview: November 30, 2024 · Completion: June 17, 2024

AI insights

Cleanliness & Site ManagementWork Quality & CraftsmanshipStaff Professionalism & CourtesyMaterials & Product Quality

Interlock Metal Roofing could improve their hiring. Interlock Metal Roofing sells roofs and a secondary party installs them. Whoever they hire to install the roofing should be either trained properly or there should be a higher standard held by the secondary group that does the installation.

This review was collected by GuildQuality, an independent third-party customer-satisfaction survey firm, on November 30, 2024. View the original survey response.

Detailed Ratings

Likely To Recommend

★★★★★Strongly agree

Sales Punctuality

★★★★☆Agree

Sales Knowledge

★★★★☆Agree

Employees Professionalism

★★★☆☆Neutral

“Some of the employees, such as the salesperson, were fine. As for the installers, if there was a rating of less than one star, I'd give them less than one.”

Communication

★★★☆☆Neutral

Installation Crew

★☆☆☆☆Strongly disagree

“The original installation crew that came to do my roof was extremely unprofessional. The work they did was not even subpar. It was below par. Having said that, they got someone else from another district to come fix all those problems, and he was absolutely professional. The first team was just a nightmare.”

Quality Of Materials

★★★★★Strongly agree

Clean & Safe

★★★★★Strongly agree

Professional Completion

★★★★★Strongly agree

“My project was completed properly and professionally, but I can't say that's the way it started. So as not to be horrible to the person who came all the way out of town to fix the mistakes, I will rate Interlock Metal Roofing with 5 stars for the end result. However, that wasn't the case at the beginning of the project. It's hard to put a scale to that because the first half of the experience was a nightmare.”

Problem Resolution

★★★★★Strongly agree

“My problem was resolved.”

Schedule

★★★★★Strongly agree

Earlier reviews of this roof

The same homeowner and the same roof, returning to us over time. Every visit below is a separate review.

June 13, 2024★★★★★
Brad's workmanship skills saved the day. Nice work and pleasing to the eye. Would recommend.
Derek H.Google

Photos From This Project

Real photos of this exact installation in Cornwall, ON from the Interlock® photo gallery.

Black Interlock aluminum slate metal roof on a single-storey ranch-style brick home in Cornwall, ON, featuring multiple roof louvers and a brick chimney.

Front elevation

Interlock Aluminum Slate Metal Roofing – Black | Cornwall, ON

Black Slate

View all 3 photos of this project →

About 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.

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