Metal Roofing in Blenheim, Ontario — Lifetime Interlock® Aluminum Shingles Installed Locally
Blenheim Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1998
What do Interlock customers in Ontario say?
Interlock has 1867 published customer reviews from Ontario, covering installations reviewed between 1998 and 2026. They average 4.8 out of 5, with 1646 collected through independent GuildQuality surveys. Interlock® Slate is the most frequently installed system in the region, appearing in 1327 of these projects. Across the surveys that scored individual categories, quality of materials rates highest at 4.9 out of 5.
Metal Roofing Built for Blenheim's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (Ontario) Ltd., founded on February 27, 1998, is a trusted local metal roofing contractor and authorized Interlock® lifetime aluminum roofing installer serving homeowners in Blenheim, Ontario. As the exclusive installer of Interlock’s Lifetime Roofing System, we provide roof replacement and re-roofing throughout Blenheim with heavy‑gauge, fire‑resistant, energy‑efficient cool roofs engineered to shed snow, resist ice-dam damage and freeze–thaw cycles, withstand high winds and summer heat, and deliver long-term protection and curb appeal. Choose the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam with the strength and durability of aluminum, all protected by the Alunar® Coating System and backed by a Lifetime Warranty for Blenheim homes.

Performance you can measure (all climates)
Weather Resistant
Tested to 193+ km/h (120 mph) winds
Durable
Lifetime-Limited, transferable warranty
Energy Efficient
Reflective cool-roof lowers cooling costs
Freeze–Thaw Durable
Endures ~81 freeze–thaw days a year
Rain & Moisture Proof
Repels ~881 mm of rain a year
- Proudly manufactured in Canada by a family-owned company, serving homeowners across Southwestern Ontario including Blenheim
- Exclusive authorized installer of Interlock® Lifetime Aluminum Roofing Systems for Blenheim-area properties
- Designed for Blenheim’s Southwest Ontario climate — spring/summer storms, freeze–thaw cycles and seasonal lake-effect moisture
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
- Interlocking panel system tested to 193+ km/h for severe windstorms that can impact Lake Erie–adjacent communities like Blenheim
- The aluminum is Coated with the Alunar® Coating System (no visible aluminum surface), providing a durable, low-maintenance finish
- Coastal/lakeshore salt-air and road-salt resistance—coating and substrate formulation reduce corrosion risk from shoreline moisture and winter salt spray near Blenheim
- Built to shed heavy rainfall from atmospheric-river-driven storm events that occasionally push intense precipitation into Southwestern Ontario and Blenheim
- Coated panel surfaces and steep-shedding profiles limit prolonged dampness, reducing moss and lichen growth on roofs in Blenheim’s humid microclimates
- Snow-shedding panel geometry reduces heavy snow buildup and helps prevent ice dams during local freeze–thaw cycles
- Class A fire-rated available to address ember-risk periods and provide added peace of mind during dry spells
- UL 2218 Class 4 impact resistance protects against hail, falling branches and storm debris common to severe seasonal weather
- Energy-efficient cool-roof performance lowers summer heat gain, improving attic comfort during occasional Ontario heat waves
- Solar-compatible roof platform, fully recyclable aluminum construction, premium architectural profiles and a Lifetime‑Limited transferable warranty for long-term performance and resale value
Metal roofing built for Blenheim's climate
Averages (10-yr): ~881 mm rain and 73 cm snow per year, ~3097 sunshine hours, mean 10.4°C, typical daily-max winds ~22 km/h with gusts to 103 km/h, and ~81 freeze–thaw days per year.
- 73 cmavg. snow / year
- 881 mmavg. rain / year
- 81freeze–thaw days / year
- 103 km/hpeak wind gusts
- 3097 hrsannual sunshine
- 10.4°Cmean temperature
Roof performance depends on the selected profile, tested assembly, roof structure and installation details. Class A fire-rated assemblies are available. Confirm applicable ratings in the testing reports and review the limited warranty before selecting a system.
Interlock Metal Roofing (Ontario) Ltd.
- 5 - 2800 Argentia Road, Mississauga, ON L5N 8L2 Canada
- Phone 416-620-2174
- Local lines Mississauga 289-272-6145 · Kingston 226-894-3566 · Ottawa 343-309-5025
- Sales & Marketing sales@interlockmetalroofing.ca
- Toll-Free 1-866-733-5811
- Customer Service onservice@interlockroofing.com
- www.InterlockMetalRoofing.ca
- Also www.ottawametalroofing.com
- Serving Ontario since 1998 — 28 years
Hours
- Monday9:00 AM – 5:00 PM
- Tuesday9:00 AM – 5:00 PM
- Wednesday9:00 AM – 5:00 PM
- Thursday9:00 AM – 5:00 PM
- Friday9:00 AM – 5:00 PM
- SaturdayClosed
- SundayClosed
Interlock Metal Roofing (Ontario) Ltd. has proudly protected homes across Southwest Ontario since 1998, offering premium aluminum roofing systems designed for lasting beauty and performance. From Chatham to London and Woodstock, our roofs are engineered to handle high winds, heavy snow, and Ontario’s unpredictable weather—while adding timeless curb appeal and energy efficiency. Homeowners across the region trust Interlock for professional installation, lifetime warranties, and proven craftsmanship that stand the test of time.
Recognition GuildQuality Guildmaster Award — verified customer satisfaction (GuildQuality)
Accredited BBB Accredited A+ · Baeumler Approved
Get a Free Metal Roof Estimate in Blenheim, Ontario
Interlock® Aluminum Roofing — all-climates performance specs for Blenheim, Ontario
| Spec / Rating | Climate / Risk Factor + What It Solves |
|---|---|
| Wind resistance: 120+ mph (193+ kph) | Extreme wind, hurricanes, storm uplift: full interlocking attachment helps prevent blow-offs, edge lifting, and panel loss in high-gust events. |
| Fire rating: Class A (with proper assembly) | Wildfire, embers, radiant heat, chimney sparks: non-combustible roof assembly provides the highest residential fire protection rating. |
| Hail resistance: UL 2218 Class 4 | Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes. |
| Snow & ice performance: interlocking, shedding profile | Heavy snow, freeze-thaw, ice dams: smooth aluminum sheds snow efficiently and the interlocking design helps block water intrusion when melt-refreeze cycles occur. (Final snow-load capacity depends on roof structure and local code.) |
| Corrosion resistance: aluminum (won’t rust) | Salt air, coastal humidity, wet climates: aluminum naturally resists rust and corrosion, reducing long-term failure risk in marine or high-moisture environments. |
| Heat / UV durability: baked-on coating system | High heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation. |
| Moss / algae resistance: smooth coated surface | Wet shade, organic growth: low-porosity metal surface gives moss/algae less to grip, reducing staining and maintenance. |
| Material: heavy-gauge aluminum roof profiles (Slate / Shake / Shingle / Tile / Standing Seam) | All-season structural stability: lightweight, dent-resistant metal system stays stable through large hot-cold swings and severe weather. |
| Expected lifespan: 50+ years | Long-term durability across climates: avoids re-roof cycles typical of shorter-life materials, even in high-stress environments. |
| Warranty: Lifetime-Limited, non-prorated + 50-year transferable | Lifetime protection + resale value: guarantees long-term material confidence and transfers to future owners. |
Available Profiles in Blenheim, Ontario:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Ontario
8 completed Interlock® metal roofs in Blenheim, ON
Interlock® has completed 8 metal roofs in Blenheim, Ontario between 1999–2008, across 2 roof profiles (Slate, Shingle). Every marker is a real, anonymized installation completed by an Interlock Installer — explore them on the interactive map and photo grid below, filterable by profile, colour and year of completion.
- 8completed roofs
- 2roof profiles
- 1999–2008years
Open Blenheim on the interactive project map →Browse all Interlock® projects in Ontario →See more Interlock® projects →
What our customers are saying:
I think better communication between the crew and the customers would be good. They handled themselves in a professional manner. We would seat down and talk things out. We were very pleased with this company.
I would highly recommend them to anyone. All of our neighbors are jealous. We are happy we went through with the project.
Do not use attic space as a garbage dump.
I think Interlock Roofing could have improved on their timing.Interlock Roofing was a couple weeks off but I think that was because of another project that they did not get finished. It was not a big deal to me that they were a little late.
I think better communication between the crew and the customers would be good.
Very little if any to improve upon. Nil
I believe you have a very superior product and if I were younger and planning on staying at this address longer I would get your roofing " whithout a doubt"
They need someone to stop by the job site that you can talk to. When you have issues you do not want to talk to someone working. There was a guy that stopped by a couple of times, but he only talked to the workers then left. They have taken care of the products, and I am very satisfied.
They could work on their pre and post work. With the pre they could improve the communication as to when the job start time is and with the post they could work on the follow up and organization of the payment.
Nearby service areas in Southwest
Interlock® metal roofing is also installed in these communities near Blenheim:













