Trenton, ON · Lifetime Aluminum Roofing
Metal Roofing in Trenton, Ontario
Interlock® installs lifetime aluminum metal roofing in Trenton, ON — 21 roofs completed since 1998 by certified local crews, every system backed by a transferable lifetime warranty.
Why Trenton homeowners choose Interlock
Interlock Metal Roofing (Ontario) Ltd., founded on February 27, 1998, is a trusted metal roofing contractor and local installer serving homeowners in Trenton, Ontario. As the exclusive authorized installer of Interlock® lifetime aluminum roofing systems, we deliver the Interlock Lifetime Roofing System engineered for performance, beauty, and durability—backed by the Alunar® Coating System and a Lifetime Warranty. Our heavy-gauge, fire-resistant, energy-efficient cool roofs are purpose-built for Trenton’s harsh Ontario conditions—shedding heavy snow, resisting ice-dam and freeze‑thaw damage, and standing up to seasonal wind and driving rain—while offering the timeless looks of slate, cedar shingles, shake, Mediterranean tile, or standing seam. We provide professional roof replacement and re-roofing across Trenton, ensuring long-term protection and lower energy costs for local homes.
- 21 Roofs installed in Trenton
- 1998First Trenton installation
- 2022Most recent installation
- 4Verified local reviews
Roofing styles available in Trenton
Every Interlock® system is heavy-gauge aluminum finished with the Alunar® coating — five architectural looks, one transferable lifetime warranty.
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Slate The dimensional look of natural slate at a fraction of the weight. -
Cedar Shingle Warm cedar-shake character that never rots, splits or curls. -
Shake Deep, hand-split shake texture in aircraft-grade aluminum. -
Mediterranean Tile Classic barrel-tile lines without the crushing tile weight. -
Standing Seam Clean vertical lines for modern and contemporary homes.
What Trenton homeowners say
- ★★★★★
Metal Shingle Roof in Trenton, ON - Professional High-Quality Product (2022)
Review: October 24, 2022 Completion: September 12, 2022Very professional & high quality product
- ★★★★★
Metal Shingles Trenton, ON Review 🇨🇦 — October 25, 2021 | Interlock®
Review: October 25, 2021 Completion: October 18, 2021 - ★★★★☆
Metal Shingles Trenton, ON Review 🇨🇦 — September 10, 2015 | Interlock®
Review: September 10, 2015 Completion: August 26, 2015The workmen had to go to buy a vent sleeve?? because it wasn't written clearly on the invoice exactly how many. Also, I couldn't remember whether the whirlybird was to stay or go. It wasn't written on the invoice either. When the boxes are empty it would be good to throw them on the ground rather then let the wind take them. A few landed in flower beds, no major harm done because near end of season. How long are we to keep the sign up? Nothing is mentioned on the contract. I am surprised that I… Read more →
- ★☆☆☆☆
Metal Shingles Trenton, ON Review 🇨🇦 — July 28, 2015 | Interlock®
Review: July 28, 2015 Completion: June 30, 2015I would have a hard time recommending them, because I'm not impressed with the office. They need to hire people in the office who know what they are doing. Their crew was very professional. Ron was a great guy. I told Tony exactly what the problems were. He was apologetic when he came out. He sent the bill for the roof, but it wasn't right. I held off on paying it in full, because the invoice was incorrect. I phoned him after two weeks, and asked him to get back to me so I could pay my bill. He… Read more →
Interlock Metal Roofing (Ontario) Ltd.
5 - 2800 Argentia Road, Mississauga, ON L5N 8L2 Canada
Metal roofing near Trenton
Trenton metal roofing FAQ
Will metal roofing hold up to Trenton's freeze-thaw winters?
Yes—aluminum actually performs better than most materials in freeze-thaw cycles. Trenton sees about 86 freeze-thaw days per year, which damages asphalt by expanding and contracting it until it cracks. Aluminum expands and contracts freely without degrading. The 3105-H24 alloy used in Interlock panels has no iron, so it cannot rust even when exposed to the salt-air moisture that accompanies freeze cycles. The self-healing oxide layer on the aluminum surface resists corrosion damage that would compromise other roofing metals in your climate.
How does a metal roof handle Trenton's snow load?
Metal roofing handles snow exceptionally well because of its light weight and smooth surface. Interlock's Shake profile installs at just 0.58 pounds per square foot, compared to 800+ pounds per square foot for slate or concrete tile. Your home needs no structural reinforcement. Trenton averages about 115 cm of snow annually. The smooth four-way interlocking design promotes gradual snow and ice melt rather than sudden dangerous slides. Optional snow guards can be added if you want additional control. The lightweight design also means ice dams form less often since heat loss through the roof is minimal.
Can metal roofing stand up to Trenton's wind gusts?
Trenton experiences typical daily winds around 20 km/h with gusts reaching 97 km/h. Interlock metal roofing is warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. The four-way interlocking aluminum panels lock together mechanically—they don't rely on nails or adhesive alone. This system distributes wind load across the entire roof rather than stressing individual fastener points. Combined with proper installation over a solid deck, the panels stay secure even during severe wind events common to South East Ontario.
Why won't an aluminum roof rust like steel roofing?
Aluminum cannot rust because it contains no iron. Iron is what oxidizes and deteriorates into rust. Interlock uses roofing-grade 3105-H24 and 3003-H24 aluminum alloy per ASTM B209. When aluminum is exposed to air and moisture, a microscopically thin oxide layer forms on its surface—and this layer actually self-heals when scratched or damaged. Trenton receives about 820 mm of rain annually, and the Alunar 70% PVDF fluorocarbon coating applied to both sides of every panel adds an extra 30-year warranty against corrosion. This two-layer defense (aluminum + coating) is why Interlock panels perform from coastal salt-air homes to Antarctic research stations.
Will hail damage a metal roof, and can it affect my insurance?
Interlock metal roofing is rated UL 2218 Class 4 impact—the highest hail rating available. The warranty covers perforation from hailstones up to 1.5 inches. Class 4 aluminum panels are significantly more impact-resistant than asphalt shingles, which are typically Class 1 or 2. Some insurance companies offer premium discounts for Class 4 roofing, though discount amounts vary by provider and policy. The lightweight Slate and Cedar Shingle profiles (under 0.41 lb/sq ft) still achieve this rating. Contact your insurer about potential savings when you upgrade—the impact resistance combined with your roof's durability often improves your underwriting profile.
Is a metal roof worth the higher upfront cost?
Metal roofing costs more upfront than asphalt—typically 2 to 3 times the initial material price. Over the roof's actual lifespan, you recover that cost and come out ahead. Asphalt shingles last 15–25 years and require tear-off and disposal, both expensive and repetitive. Interlock's Guardian Warranty is a lifetime limited material warranty for the original owner, non-prorated. That means 40+ years with zero roof replacement on your watch. Calculate the full cost: asphalt tear-offs, disposal fees, reinstallation labor over 50 years versus one aluminum installation. Most homeowners find metal roofing is the last roof they buy, making it the smarter long-term investment. Current regional promotion: interest-free payments for 3 months and save at least $2499 on installation.
How much maintenance does a metal roof actually need?
Far less than asphalt, wood shake, or clay tile. Interlock aluminum roofing requires no seasonal treatment, no re-nailing, no algae treatment, and no structural repairs. Trenton's 3074 annual sunshine hours and 115 cm of snow simply shed off—the smooth surface doesn't accumulate debris or rot like asphalt or wood. The Alunar 70% PVDF coating is rated 30 years against chalking and fading (ASTM D4214/D2244), so you won't see significant color fade even after decades. The only routine maintenance is occasional inspection and clearing gutters, same as any roof. CALGreen verified metal roofing cuts maintenance labor and material costs dramatically compared to traditional roofing, freeing your budget for other priorities.
Can I get the look of slate, cedar shake, or tile with a metal roof?
Yes—Interlock offers five profiles: Slate, Cedar Shingle, Shake, Mediterranean Tile, and Standing Seam. Each replicates the visual character of its namesake material. The Slate profile mimics natural stone; Cedar Shingle and Shake replicate hand-split wood with authentic dimensionality; Mediterranean Tile captures curved clay profiles. The profiles are available in multiple factory colors so you can match or complement your home's existing style. They're all four-way interlocking aluminum, so you get authentic appearance without the weight, maintenance, fragility, or ongoing cost of the real materials. Choose the aesthetic that fits your home's character—then enjoy the durability, longevity, and energy efficiency of aluminum.
Will my house need expensive structural upgrades for a metal roof?
No. That's one of aluminum's greatest practical advantages over slate or tile. Interlock's Mediterranean Tile profile weighs just 0.59 pounds per square foot—about 96% lighter than concrete or clay tile. Your home's frame doesn't experience the stress that slate or traditional tile creates. Installation typically occurs directly over your existing roof deck without any reinforcement, which also saves weeks of construction time and expense. Trenton homes with older framing that would require costly bracing for heavy tile can install a durable, high-impact metal roof without modification. This lightweight characteristic, combined with four-way interlocking strength, is why metal roofing retrofits are feasible on nearly every house type.
Is metal roofing better for the environment than asphalt?
When you install Interlock aluminum roofing, you break the asphalt tear-off-to-landfill cycle. Aluminum is approximately 95% recyclable—at end of life, your roof becomes feedstock for new aluminum products rather than buried waste. Trenton receives about 820 mm of rain yearly, so asphalt shingles have a relatively short service life here due to moisture exposure. Every 15–25 years, the old shingles come off and go to landfill. Metal roofing lasts 40+ years under the Guardian Warranty, so you avoid multiple landfill cycles in a single generation. The manufacturing process for Interlock roofing in Delta, BC also uses significantly less energy per pound of finished product compared to asphalt production. Choosing aluminum means lasting environmental responsibility—less material waste, fewer extraction cycles, one roof instead of many.
Ready for your last roof in Trenton?
Talk to your local Interlock® team about a lifetime aluminum roof — Never Re-Roof Again®.