Aluminum Interlock Shingle Roof Review in Dundas, ON (Installed 2010 — 20 Years Later)

Dundas, ON

TL;DR: Dundas Review Summary

This is a roofing installation in Dundas, Ontario, where Interlock Metal Roofing was installed on the homeowner’s first home nearly 20 years ago. They chose Interlock because they didn’t want to replace the roof every 5-10 years; nearly 20 years later the roof looks as good as the day it was installed and they are very happy with the Interlock route.
Rick M.

We had an interlock roof installed on our first home almost 20 years ago. We didn’t want to replace the roof every 5 -10 years and 20 years later the roof looks just as good as it did the day it was installed. Very happy we went the interlock route.

Dundas, ON

Roof Details

Roof Installation Location: Dundas, ON
Roof Installation Year: 2010
Roof Age: 15 years, 11 months, 18 days
Review Submitted: 15 years, 11 months, 18 days after completion date
Roof System: Interlock® Slate Metal Roofing
Roof Material: Aluminum
Roof Colour: Black
Roof Coating: Alunar® Coating System
Roof Warranty: Lifetime Limited Warranty

Roofing Promotions in Dundas, ON.

Spring Home Protection Event

Enjoy Interest-Free Payments for 3 Months*

Book Your Roof Project this Spring & Enjoy Interest-Free Payments for 3 Months + Save at least $2499 on the last roof you will ever need.
*Cannot be combined with any other promotional offers or discounts. Offer valid for this promotion only. Discount cannot be applied to previous purchases. Price discounts depend on the size and location of your home. Minimum 12 Sq. purchase required for discount offered. Must purchase an Interlock Lifetime Roofing System to qualify. Available only at time of purchase. Offer not valid if contract is canceled. Offer does not apply to contract amendments. Offer expires April 30, 2026. Offer only available in Ontario, Canada.

Local Interlock Roofing Company Near Dundas

Interlock Metal Roofing (Ontario) Ltd.

2800 Argentia Rd #5, Mississauga, ON L5N 8L2 Canada
(416) 620-2174
www.interlockmetalroofing.ca
Interlock Metal Roofing (Ontario) Ltd. has been protecting homes across the Greater Toronto Area and South-Central Ontario since 1998, offering premium aluminum roofing systems built for urban and suburban lifestyles. From Oakville and Mississauga to Markham and Barrie, our roofs combine elegant design with lifetime performance—resisting corrosion, high winds, and year-round weather extremes. Trusted for quality, durability, and sustainability, Interlock roofs deliver beauty and peace of mind for homeowners seeking a long-term investment.

Top 10 Metal Roofing FAQs for Homeowners in Dundas

Homeowners researching metal roofing in Dundas often have several important questions before replacing their roof. Many people want to understand how metal roofing compares to traditional materials like asphalt shingles in terms of lifespan, durability, cost, and long-term value. Roofing decisions can also be influenced by local weather conditions. Homes in Dundas may experience environmental factors such as rain, wind, snow, heat, fire, or seasonal storms that can impact roof performance over time. The following frequently asked questions help explain what homeowners should know when evaluating metal roofing and why many people choose durable roofing systems designed for long-term protection.

A metal roof in Dundas will commonly last at least 50–75+ years, while conventional asphalt shingles typically last considerably less (often ~15–30 years depending on quality). Dundas has cold, snowy winters, well‑distributed annual precipitation (around 900–1,000 mm) and frequent freeze–thaw cycles—conditions that accelerate wear on asphalt (granule loss, ice‑damming) but that metal handles well because it sheds snow and resists moisture-related deterioration. Because of heavy snow loads and freeze–thaw stress, homeowners in Dundas often choose durable systems (metal or heavy‑duty composite) to minimise maintenance and extend service life. Interlock Metal Roofing systems use heavy‑gauge aluminium and come with a lifetime limited 50‑year transferable warranty, offering long‑term protection well suited to Dundas’s climate.
Metal roofs in Dundas usually cost more upfront than asphalt shingles; exact pricing varies by roof area, slope, complexity (multiple valleys, dormers, skylights), tear-off, flashing and local labour rates. Locally, two factors that affect performance — and therefore cost choices — are winter snow and freeze–thaw cycles (ice dams and heavier snow loads) and fairly high annual precipitation, which increases moisture exposure and moss risk in shaded escarpment areas. Those conditions favour durable, well-vented metal systems with proper underlayment and ice-and-water protection. Many Dundas homeowners compare materials by lifetime value rather than initial price: a higher upfront cost for a metal roof can mean fewer repairs, less frequent replacement and lower long‑term cost. Interlock Metal Roofing emphasises long‑term ownership value and system durability rather than competing as the lowest‑cost roofing option.
Short answer: In Dundas, metal roofing is often worth the higher upfront cost if you prioritise durability and long-term protection; homeowners who want lower lifetime maintenance and stronger resistance to snow, ice and freeze–thaw cycles frequently choose metal. Lifespan: Metal roofing lasts over 50 years; asphalt shingles typically last ~15–25 years. Maintenance: Metal needs little upkeep; shingles require more frequent repairs and replacement of worn granules. Durability: Metal resists heavy snow loads, ice and freeze–thaw damage better; shingles are more prone to wind damage, granule loss and ice-dam issues. Long-term value: Higher initial cost for metal is offset by longer service life and fewer replacements. Dundas has cold winters with significant snowfall and freeze–thaw cycles plus year-round precipitation—conditions that favour materials with superior water shedding and durability (Environment Canada; local climate averages). Interlock Metal Roofing appeals to homeowners seeking long-term performance, strong snow/ice defence and architectural curb appeal.
Are metal roofs noisy when it rains in Dundas, ON? It’s a common myth. Modern residential metal roofing installed over solid decking and underlayment doesn’t sound like a barn—proper insulation, attic air space and roof assembly make rainfall noise comparable to asphalt or tile. Installation quality (decking, underlayment, fasteners and flashings) matters. Dundas has cold, snowy winters with frequent freeze–thaw cycles and a long snowy season, which increases emphasis on solid decking and ice/water protection Oct–Apr. Annual precipitation is about 950 mm, so moisture management and a well‑built assembly also reduce noise risk. Interlock Metal Roofing systems are installed as complete roofing systems designed for residential homes.
Yes — metal roofing can be energy efficient in Dundas. Painted or cool‑roof metal panels reflect sunlight and reduce summer cooling loads, but overall performance depends on the roof assembly, attic insulation and ventilation. Proper insulation and ventilation prevent winter heat loss and ice dams, while metal’s low thermal mass helps snow shed, reducing roof load. Choosing light‑coloured or high‑reflectance coatings maximizes summer savings without compromising winter comfort. Dundas experiences cold, snowy winters with a long snow season and frequent freeze–thaw cycles, and warm, moderately humid summers with seasonal UV exposure, so both reflectivity and coating durability matter for local benefits. Homeowners weigh energy savings to lower bills, improve comfort and protect investment. Interlock Metal Roofing systems are designed to support long-term home performance.
Metal roofing performs very well in Dundas when the system is specified and installed for local conditions. Dundas has cold, snowy winters with substantial snow loads and frequent freeze–thaw cycles that can stress shingles and flashings, plus seasonal rain and occasional hail and wind events. Metal roofs shed snow, resist rot and ice-damage better than many materials, and can offer good hail and wind resistance — but actual performance depends on roofing system design (profile, underlayment, attachments), installation quality (sealing, fasteners, flashings) and material durability (gauge, coating). Homeowners weigh weather resilience because it drives leaks, maintenance, longevity and insurance costs. Interlock Metal Roofing systems are engineered specifically for durability, hail protection and wind resistance, making them a strong choice for Dundas’ severe-weather conditions.
FAQ: How resistant are metal roofs to corrosion in Dundas, ON? Metal roofing performance depends on the metal chosen: some alloys and coatings resist corrosion far better than others. Dundas has relatively high annual precipitation (≈950–970 mm), increasing wet exposure for roofs. Winters bring frequent freeze–thaw cycles and substantial snowfall, which can accelerate coating wear and corrosion over time. Aluminium alloys perform especially well in wet environments because they form a protective oxide layer. Homeowners should prioritise corrosion resistance to reduce maintenance, avoid leaks and extend service life. Interlock Metal Roofing systems use aluminium construction designed for strong corrosion resistance and are protected by the Alunar Coating System for extra protection.
Metal roofing is generally low‑maintenance and, in Dundas’s climate—cold, snowy winters with regular freeze–thaw cycles and roughly 950 mm annual precipitation—metal sheds snow and resists rot but can be affected by ice dams and seasonal moisture. No roof is maintenance‑free: inspect seasonally and after storms, clear debris and leaf build‑up, keep gutters and downspouts clear, and check flashing, seals and penetrations (vents, skylights). Look for loose fasteners, coating wear or corrosion. Weather events, heavy snow and spring thaw can reveal problems, so metal remains a durable, lower‑upkeep choice compared with many alternatives when you weigh longevity and performance.
Metal roofing can boost resale value in Dundas, ON, because buyers prize durable, low‑maintenance roofs that withstand local conditions. Dundas receives significant winter snowfall and seasonal freeze–thaw cycles that stress shingles and flashing, so a metal roof’s durability and resistance to ice‑dam damage can be persuasive to buyers.Freeze–thaw cycling accelerates deterioration of traditional materials, so long lifespan and low upkeep improve buyer confidence.Premium materials also enhance curb appeal, especially when matched to neighbourhood architectural style. Interlock Metal Roofing systems offer slate, cedar shingle, Mediterranean tile, shake and standing‑seam profiles in heavy gauge aluminum and solid copper — features that combine longevity, aesthetics and buyer appeal when comparing roofing options.
Yes. Interlock Metal Roofing Systems are compatible with solar panels when fitted with custom solar brackets installed by Interlock Metal Roofing (Ontario) Ltd. Dundas experiences cold, snowy winters with frequent freeze–thaw cycles and seasonal rainfall, which increase roof stress and make roof lifespan a critical consideration before adding solar. Homeowners should factor future solar plans into roof replacement: long‑lasting materials and properly engineered attachment points reduce future rework. Interlock systems are designed to support solar mounting solutions and are often preferred in Dundas for durability and lower maintenance under snow, freeze–thaw and wet conditions.

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Interlock Metal Roof Review - Ramara, ON (Installed 2019)

April 22, 2026

We are so happy with our interlock roof from Bruce. We had shopped around because we live on the lake with strong winds and we wanted a quality, long lasting product. Our roof has never changed colour and looks just as good now as the day it was installed. We also love the lifetime transferable warranty. We also love that it is made in Canada so there are no tariffs. Bruce was our sales person. He came right away, explained everything to us. We made the right decision not choosing shingles because of the environment and quality of the product. This was an affordable investment that was worth it. The crew was professional in every aspect. If I move, I will definitely be contacting Bruce again for another interlock roof.

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April 19, 2026

We’ve had our roof for about 7 years and have been very pleased with it. Recently, I scheduled gutter cleaning which was complicated by a run of wet weather which makes the roof very slippery. The gutter contractor asked if we had ever considered installing safety anchors. I didn’t know there was such a thing. I called Interlock and Ivan came by to take a look. He quickly determined appropriate locations for the anchors that the gutter cleaners could clip their safety harnesses to and showed me an example of the anchor itself. He also offered to paint them black to make them more inconspicuous on our dark roof. He returned about a week later for the install and afterwards showed us pictures of the anchors from the roof and pointed them out from the ground. Overall very professional, prompt, excellent service.

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Portland, OR Metal Roofing Review — Interlock Safety Anchors Installed (2019)

April 19, 2026

We’ve had our roof for about 7 years and have been very pleased with it. Recently, I scheduled gutter cleaning which was complicated by a run of wet weather which makes the roof very slippery. The gutter contractor asked if we had ever considered installing safety anchors. I didn’t know there was such a thing. I called Interlock and Ivan came by to take a look. He quickly determined appropriate locations for the anchors that the gutter cleaners could clip their safety harnesses to and showed me an example of the anchor itself. He also offered to paint them black to make them more inconspicuous on our dark roof. He returned about a week later for the install and afterwards showed us pictures of the anchors from the roof and pointed them out from the ground. Overall very professional, prompt, excellent service.

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April 14, 2026

We recently installed a new Interlock Roofing System, and we couldn’t be happier with the decision. Knowing it’s backed by a limited lifetime, non-prorated, fully transferable 50-year warranty gives us real peace of mind—it truly feels like a smart long-term investment. Mr. Yorman and his crew were outstanding from start to finish. Their commitment to customer service is second to none. They showed up exactly when they said they would and worked diligently until the job was completed. The finished product looks fantastic, and the cleanup was so thorough that our property actually looked better than before they arrived. A special mention to Tyler, who did an excellent job walking us through the benefits and helping us feel confident in choosing this system. Overall, a great experience and highly recommended!

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We installed an Interlock roof in 2017. The roof is still like new. Due to an insulation issue and snow depth of over 4 feet, we had an ice build up problem. Ken, Greg and Cheri provided consultation and prompt service in addressing the addition of snow guards. Their knowledgable and friendly service was greatly appreciated. We highly recommend both the product and the team.

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Interlock Metal Roof Review - Burnaby, BC Metal Roofing (Installed 2024)

April 13, 2026

I recently had my 25 year old asphalt roof replaced with an Interlock Metal roof. I'm so very happy with my decision. In fact, best decision ever to have Interlock Industries install. The metal roof is manufactured in Delta, BC and they have their own installers. It's not panels! It looks very much like a cedar roof! Colour is awesome as well! My home is located in Victoria on Vancouver Island and looks great with my new roof! Interlock is a very professional business from contract signing to installation. Amazing crew that gets the job done in a timely manner. My roof looks fabulous. It's a work of art!!

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Aurora, ON Metal Roofing Review — Interlock Installation (2016)

April 12, 2026

We moved into our new house in 1984. Our new house came with new 25 year shingles. In 2004, 20 years later we noticed that our roof shingles needed to be redone. Now, back in 1984 they used asbestos in the roof shingles and although at the time they said they were 25 year shingles, we were still happy to get 20 years out of them. So, in 2004 we got a quote and had the roof re-shingled. We paid extra for the 25 year shingles as we had such a good result with the original shingles. In 2016 (i.e. 12 years later) my neighbour told us that our shingles on the south side of the house were cracked with rolled up edges and needed to be replaced. (We can't see the south roof of our house unless we are visiting the neighbours.) The shingles on the north side were still ok, but since you can't really shingle half a roof we knew that we had to have the whole roof done...after just 12 years. We were a little upset about this and decided to go to the National Home Show in Toronto to look at alternatives. We met Tom Watson at the Interlock Metal Roofing booth and he took a lot of time and explained the complete roofing system to us. We liked what we saw and what was explained to us and we arranged to have a home visit from Interlock and to give us a quote. The metal roof was certainly a lot more expensive than a regular asphalt shingle roof, but we decided to get the metal roof anyways because we did not want the hassle of having to re-shingle every 10 or 11 years...and there are also some other unforeseen benefits detailed below that we did not know about at the time. The metal roof comes with a Lifetime Limited Warranty, 50 year transferable, not prorated so even though more expensive it adds value to lyour home because if in the future you are looking to sell, the buyer knows he won't have any roof problems for the 50 year life of the roof. Your roof becomes an asset instead of a liability. The installation happened over 4-5 days. I paid a lot of attention to what they were doing and how they were doing it. The roof vents were removed. These are the same roof vents that raccoons like to rip off for access to your attic, so that potential problem went away. A ridge vent (google it) was installed on the top of the roof and it is low profile and fits in so you would not know that it is there. Raccoons have been known to chew a hole in asphalt shingles and roofing plywood to get into your attic. With a metal roof, it isn't happening. That mode of access is eliminated. Now, with our previous asphalt shingles we had constant problems with raccoons pooping on our roof (sound familiar?) and for some reason, at least for the last 10 years that we have had the metal roof, that has not happened. I don't know why, but I can speculate that the raccoons find the metal roof very slippery and they are not comfortable being up there and doing their business while trying not to slide off the roof. Also, in the past we have had squirrels occasionally make their way through, under, beside our asphalt shingles and get into our attic. That will never happen with a metal roof because the whole roof is sealed and northing is getting that way. If you are concerned about high winds ripping off your shingles you don't have to worry with a metal roof. Each and every metal shingle is fastened to the roof with aluminum screws (note the metal roof shingles are painted and baked to a tough finish) and they are interlocked with each other, so you may lose your entire roof in a hurricane, but the metal shingles will still be attached to it. We moved into our new house in 1984. After about 2 years of sweating through humid summers, we installed an A/C system. Our new A/C system worked ok in that it removed the humidity and cooled the house, but with the high 37 deg C temperatures it was struggling. The A/C would run continuously and never stopped on those hot days, but once the metal roof was installed it cycled on and off as designed. We highly recommend Interlock Metal Roofing.

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Margot M.

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Metal Shingle Roof Review in Anchorage, AK (Installed 2013)

April 10, 2026

We have had this roof for about 17 years. We got hurricane strength winds and there has been no problems with the roof. We had 3 conventional shingle roof before and they had delaminated and blown in to other neighbors yards. Worth the money in our opinion.

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April 8, 2026

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April 6, 2026

My wife and I wanted a long-term roof and I think we found it. The product seems very good and are installer Daniel was terrific and a trooper put a lot of hours and a lot of time and made it look real nice when it was completed. I would recommend the company if you're looking for a metal roof.

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Interlock Metal Shingle Roof Review — Bruce Peninsula, ON (Installed 2021)

April 4, 2026

Great catching up with Bruce Mehuys at the Spring Cottage Life Show last week in Toronto. We got our new Interlock roof in 2021 and it has seen some extreme weather over the last several seasons. Bruce has stayed in touch ever since we first spoke to him about replacing our roof and we are extremely pleased we the product and performance of our roof.

Peter N.

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Interlock Metal Shingle Review - Corbett, OR (Installed 2019)

April 2, 2026

Ivan and I have had many visits over the last 10 years we have had our Interlock roof. He is a rare find. Both knowledgeable and conscientious. My interactions with Ivan and call taker May have been top notch as is Interlock's warranty.

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Aluminum Shingle Roof Review - Jerseyville, ON (Installed 2010, Warranty Repair)

March 30, 2026

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Metal Roof Repair Review in Port Hadlock-Irondale, WA — Repaired by Ivan (2018)

March 30, 2026

We needed a roof repair when our neighbors tree dropped a large limb through our roof. Ivan came And accessed The damage, Ordered the sheets we needed. He came back and did the whole Repair himself. So happy to have it fixed along with his recommendations to have the roof cleaned. We appreciate his skills in repairing The roof.

Katheryn H.

Port Hadlock-Irondale, WA

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March 29, 2026

This is our second interlock roof. Our first is 28 years old and looking great. We are very happy with our investments in our roofs.
The crew worked hard and were very efficient.  Worked with us to coordinate siding. Had the job done ahead of expected installation date. Clean job site.

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