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THE INTERLOCK COLLECTION

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.

Interlock metal roofing styles including slate, cedar, shake, tile, and standing seam in Blenheim, Ontario

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

Impact Resistant

UL 2218 Class 4 — top hail rating

  • 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.

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

Part of the Interlock® installer network →

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Interlock® Aluminum Roofing — all-climates performance specs for Blenheim, Ontario

Spec / RatingClimate / 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 4Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes.
Snow & ice performance: interlocking, shedding profileHeavy 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 systemHigh heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation.
Moss / algae resistance: smooth coated surfaceWet 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+ yearsLong-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 transferableLifetime 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.

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

4.8 / 5 — from 1,867 verified customer reviews in Ontario

What our customers are saying:

★★★★★
Completion: February 1, 2016

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.

★★★★★
Review: April 22, 2020Completion: March 25, 2020

I would highly recommend them to anyone. All of our neighbors are jealous. We are happy we went through with the project.

★★★★★
Review: June 9, 2015Completion: May 26, 2015

Do not use attic space as a garbage dump.

★★★★★
Review: July 30, 2014Completion: April 25, 2014

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.

★★★★★
Review: February 1, 2016Completion: November 12, 2015

I think better communication between the crew and the customers would be good.

★★★★★
Review: August 5, 2022Completion: July 15, 2022

Very little if any to improve upon. Nil

★★★★★
Review: April 9, 2019Completion: April 9, 2019

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"

★★★★
Review: November 12, 2014Completion: July 3, 2014

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.

★★★★
Review: June 23, 2014Completion: May 2, 2014

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.

Read all Ontario metal roofing reviews →

Nearby service areas in Southwest

Interlock® metal roofing is also installed in these communities near Blenheim:

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