Metal Roofing in Richmond Hill, Ontario — Lifetime Interlock® Aluminum Shingles Installed Locally

Richmond Hill Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1998

Metal Roofing Built for Richmond Hill's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection

Interlock Metal Roofing (Ontario) Ltd., founded February 27, 1998, is the trusted Richmond Hill, Ontario metal roofing contractor and exclusive authorized installer of Interlock® Lifetime aluminum roofing systems. Serving homeowners across Richmond Hill, we specialize in roof replacement and re-roofing with heavy-gauge, fire-resistant, energy-efficient cool roofs engineered for Ontario’s climate — from rapid snow loads and ice-dam risk to freeze‑thaw cycles, wind-driven rain, and summer heat — delivering superior snow-shedding, long-term protection, and lower energy bills. Choose the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam with the strength of metal; every roof features the Alunar® Coating System and is backed by a Lifetime Warranty.

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

Performance you can measure (all climates)

Wind- and storm-resistant Interlock® metal roof rated to 193+ km/h for Richmond Hill, Ontario

Weather Resistant

Tested to 193+ km/h (120 mph) winds

Interlock® aluminum metal roof in Richmond Hill, Ontario backed by a Lifetime-Limited, transferable warranty

Durable

Lifetime-Limited, transferable warranty

Energy-efficient cool-roof Interlock® aluminum metal roofing in Richmond Hill, Ontario

Energy Efficient

Reflective cool-roof lowers cooling costs

Freeze–thaw durable Interlock® metal roof for Richmond Hill, Ontario

Freeze–Thaw Durable

Endures ~86 freeze–thaw days a year

UL 2218 Class 4 impact- and hail-resistant Interlock® metal roof in Richmond Hill, Ontario

Impact Resistant

UL 2218 Class 4 — top hail rating

Snow-shedding Interlock® metal roof built for Richmond Hill, Ontario winters

Snow-Shedding

Built for ~117 cm of snow a year

  • Proudly manufactured in Canada by a family-owned company, serving homeowners throughout Richmond Hill and south‑central Ontario
  • Exclusive authorized installer of Interlock® Lifetime Aluminium Roofing Systems for Richmond Hill residences
  • Designed for Richmond Hill’s south‑central Ontario climate — heavy rainfall, atmospheric‑river events and seasonal windstorms
  • Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
  • Aluminium is coated with the Alunar® Coating System (no visible aluminium surface) for durable colour retention through Richmond Hill’s variable seasons
  • Corrosion‑resistant finish tolerates urban moisture and road‑salt exposure common in Ontario winters
  • Tested to 193+ km/h for severe gusts and storm conditions typical of south‑central Ontario wind events
  • Snow‑shedding panel geometry and engineered load capacity reduce roof snow buildup and help prevent ice dams during Richmond Hill’s heavy snowfall and freeze–thaw cycles
  • Standing‑seam mechanical fastening minimizes through‑fastener penetrations, improving leak resistance during repeated melt/freeze cycles
  • UL 2218 Class 4 impact resistance for protection against hail, falling branches and storm debris
  • Class A fire-rated available to enhance suburban fire resilience and ember resistance around tree‑lined Richmond Hill neighbourhoods
  • Energy‑efficient cool‑roof performance lowers summertime heat gain and improves attic comfort during Ontario heat waves
  • Solar‑compatible roof engineering for modern bracket‑mounted photovoltaic systems on Richmond Hill homes
  • Low‑maintenance, algae‑ and moss‑resistant finishes reduce biological growth on shaded roofs common in Richmond Hill’s mature neighbourhoods
  • Fully recyclable aluminium and long service life support sustainable retrofit choices for south‑central Ontario homeowners
  • Backed by a Lifetime‑Limited transferable warranty to protect long‑term value for Richmond Hill properties

Metal roofing built for Richmond Hill's climate

Averages (10-yr): ~780 mm rain and 117 cm snow per year, ~3017 sunshine hours, mean 8.5°C, typical daily-max winds ~19 km/h with gusts to 113 km/h, and ~86 freeze–thaw days per year.

  • 117 cmavg. snow / year
  • 780 mmavg. rain / year
  • 86freeze–thaw days / year
  • 113 km/hpeak wind gusts
  • 3017 hrsannual sunshine
  • 8.5°Cmean temperature

Interlock® aluminum roofing is engineered for these conditions — wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated, Class A fire-rated, and built to shed snow and resist ice dams and freeze–thaw cracking, backed by a lifetime limited warranty.

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 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.

Recognition GuildQuality Guildmaster Award — verified customer satisfaction (GuildQuality)

Accredited BBB Accredited A+ · Baeumler Approved

Part of the Interlock® certified installer network →

Get a Free Metal Roof Estimate in Richmond Hill, Ontario

Interlock® Aluminum Roofing — all-climates performance specs for Richmond Hill, 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 Richmond Hill, Ontario:

Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.

62 completed Interlock® metal roofs in Richmond Hill, ON

Interlock® has completed 62 metal roofs in Richmond Hill, Ontario between 1998–2023, across 5 roof profiles (Shingle, Slate, Cedar Shingle, Tile, Standing Seam). Every marker is a real, anonymized installation completed by a Certified Interlock Installer — explore them on the interactive map and photo grid below, filterable by profile, colour and year of completion.

  • 62completed roofs
  • 5roof profiles
  • 1998–2023years

4.6 / 5 — from 1,932 verified customer reviews in Ontario

What our customers are saying:

★★★★★
Review: July 25, 2023Completion: June 29, 2023

Feedback for #1: Everything is good.

★★★★★
Review: November 16, 2022Completion: November 9, 2022

Communication and follow-up was a bit lack luster. Phone line often unattended.

★★★★★
Review: April 12, 2022Completion: March 9, 2022

I am very satisfied with what they have installed. I'm generally satisfied with them. I was also really impressed that they managed to do the project during Winter time.

★★★★★
Review: August 11, 2021Completion: July 22, 2021

The completion took longer than expected. Interlock Roofing could improve on that.

★★★★★
Review: July 13, 2020Completion: June 13, 2020
★★★★★
Review: December 10, 2018Completion: November 29, 2018

Yes. Wwe have been referring Interlock to our friends and family. I wish the salesman knows better about the quality of shingles and be honest with customers. Initially, we like the Shake high profile shingles, but worry about the dents during installation. John told us that Shake will result possible dents and assured us that Cedar will not have the same problem if it is installed by Interlock installers. But, we did end up with some dents on top of garage level. We couldn’t inspect the top of house to know if there are dents or not. This makes us doubt the quality of Cedar is strong enough. Perhaps, some improvements on the thickness and design of panel can be done to avoid dents for future customers.

★★★★★
Review: October 17, 2018Completion: September 8, 2018

Cleanliness of job site. John should clarify that ring nails NOT screws are being used instead of letting the false info of the video speak.

★★★★
Review: August 21, 2018Completion: July 19, 2018

I would like to have had a supervisor inspect the finished job as it is not practical for me to get up on the roof to look over the finished product.

★★★★★
Review: June 8, 2018

We’ve signed the contract and hoping for a smooth installation and supreme post installation service.

★★★★★
Review: September 17, 2016Completion: August 31, 2016

Not much. Maybe inventory management. The work had to pause a few days, because the warehouse ran out of materials (that I had already bought), we they had to wait to re-stock for a few days. I am ok though, just surprised, that once a contract came into effect, no one placed a hold on total materials required for the job. Now I'd guess we will give it the test of time and tell mother nature, Bring it on! Time will judge the rest. Overall, very pleased. Thanks to the entire crew. If I can add, your agreement with TD is not that great on the borrowing rate. My own line of credit (with TD) is at a much better rate. Just did not have the time to go and increase the limit. I might soon pay it off and keep it on L/C within a year or so, just an inconvenience for the all the paperwork it took, but it has nothing to do with your company.

★★★★
Review: September 11, 2015Completion: May 26, 2015

The company should have retreived the sign that was left on our lawn.

Read all Ontario metal roofing reviews →

Nearby service areas in South-Central

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

Metal Roofing FAQs for Homeowners in Richmond Hill

The following metal roofing FAQs are designed specifically for homeowners in Richmond Hill, Ontario. Whether you are building a new home or replacing an existing roof, understanding how roofing materials perform in local weather conditions is essential. From wind and storm protection to fire resistance, hail impact, snow loads, and coastal moisture exposure, Interlock’s Lifetime Aluminum Roofing System is engineered to provide long-term durability, energy efficiency, and peace of mind in Richmond Hill.

How does a metal roof handle Richmond Hill's heavy snow and freeze-thaw cycles?

Aluminum's smooth, slick surface naturally sheds snow and ice much faster than asphalt, reducing ice dam risk during the area's 86 annual freeze-thaw days. The four-way interlocking panels won't crack, curl, or split under those repeated cycles that damage traditional shingles. Richmond Hill averages about 120 cm of snow yearly, so the panel's lightweight design—just 0.41 lb/sq ft for the Shingle profile—won't strain your roof structure even when snow temporarily accumulates, and you can install snow guards if desired for safety.

Why does freeze-thaw damage shorten other roofs but not Interlock metal?

Freeze-thaw cycles expand and contract asphalt and wood, causing them to crack and curl over time; aluminum flexes without permanent deformation. Richmond Hill experiences roughly 86 freeze-thaw days annually, combined with about 780 mm of rain and 120 cm of snow—conditions that accelerate decay in traditional materials. Interlock's roofing-grade 3105-H24 aluminum alloy is engineered to survive these swings intact. The material's oxide layer self-heals when scratched, so microcracking from thermal stress won't compromise it the way it does asphalt.

Can an aluminum metal roof actually never rust?

Yes—aluminum contains no iron, so rust is chemically impossible. The metal forms a natural oxide layer that protects it from corrosion and self-heals if scratched, even in environments far harsher than Richmond Hill's 780 mm annual rainfall and occasional wind gusts to 113 km/h. Steel roofs require paint or coating to prevent rust, and that coating eventually fails; aluminum doesn't. The Alunar 70% PVDF fluorocarbon finish on both sides adds 30 years of warranty against chalking and fading, but the base material underneath will never corrode, giving you genuine peace of mind for decades.

Will a metal roof blow off in Richmond Hill's wind gusts?

No. Interlock's four-way interlocking panels are warranted to resist wind speeds up to 120 mph (193 km/h), and Richmond Hill's typical gusts reach about 113 km/h—well within that safety margin. The interlocking design distributes wind load across the entire roof system rather than relying on fasteners alone, so the panels lock together and stay put. Even in spring storms, when gusts peak, your roof won't lift or flutter. This engineering means you'll never face the costly emergency repairs or insurance claims that loose shingles trigger in windier seasons.

Does a metal roof stand up to hail, and can I save on insurance?

Interlock achieves UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. Many insurers offer premium discounts for Class 4 roofs because claim rates are so low. While Richmond Hill's hail risk is lower than prairie regions, the material's non-combustible Class A fire rating and proven durability make it attractive to underwriters. Contact your insurer with the UL 2218 rating and ICC-ES ESR-1790 evaluation; some homeowners have seen 15–20% annual savings, which compounds over the roof's life.

Is metal roofing really cheaper than asphalt over time?

Metal roofing costs more upfront than asphalt, but over 50+ years, the math shifts dramatically. Asphalt needs replacement every 15–20 years; Interlock's lifetime limited warranty means one roof covers your ownership and transfers 50 years to the next owner, eliminating costly tear-outs and landfill fees. Richmond Hill's 86 annual freeze-thaw days and 120 cm snow load accelerate asphalt deterioration, so you'd replace it sooner here than in milder climates. Today's promotion offers interest-free payments for 3 months and saves at least $2499 on installation—spreading the cost while you recover it through lower maintenance, energy savings, and avoided replacements.

Will I need to reinforce my roof structure for a metal roof?

No reinforcement required. Interlock's aluminum panels weigh roughly 0.41–0.59 lb/sq ft depending on profile—about 96% lighter than concrete or clay tile. Most homes' roof framing easily handles that modest load, so you avoid expensive structural upgrades. Because the material is so light, Interlock often installs directly over your existing roof without tear-off, saving time and labor. Your contractor will verify your deck's condition, but in Richmond Hill's typical residential construction, the existing framing is more than adequate. This weight advantage also means faster installation and lower labor costs compared to slate or tile.

How much work does a metal roof require once it's up?

Very little. Unlike asphalt shingles that deteriorate and curl, or wood shakes that split and rot, aluminum won't degrade from Richmond Hill's 780 mm annual rainfall, 117 cm snow, or 86 freeze-thaw days. Gutters and downspouts need the same cleaning as any roof, and you should inspect flashing after severe weather, but the panels themselves require no maintenance. No repairs, no repainting, no sealing. The Alunar coating is warranted 30 years against chalking and fading (ASTM D4214/D2244 standards), so color stays true. This makes Interlock CALGreen-verified for reduced maintenance—one reason it appeals to homeowners who value time over constant upkeep.

Will a metal roof lower my cooling costs in summer?

Yes. Interlock's energy-efficient colors reflect solar heat rather than absorb it the way dark asphalt does; reflectance reaches up to 0.55 and thermal emissivity is 0.84, meaning the roof stays cooler and your air conditioning works less. Over Richmond Hill's 3017 annual sunshine hours, that efficiency compounds. Cool Roof Rating Council data shows comparable homes see measurable energy savings, especially in late spring and early fall when the sun angles low but air conditioning still runs. You won't eliminate cooling costs, but a reflective metal roof reduces peak demand and lowers monthly bills—savings that offset some of the upfront cost over the roof's lifetime.

Is metal roofing actually better for the environment?

Absolutely. Interlock aluminum is roughly 95% recyclable at end-of-life, and the material ends the asphalt tear-off-to-landfill cycle that claims millions of tons annually. Most homes replace asphalt every 15–20 years, dumping shingles; Interlock's lifetime limited warranty and 50-year transferable coverage mean one roof serves multiple owners without replacement waste. The aluminum itself is infinitely recyclable—scrap roofing has high scrap value—so your old roof becomes new product instead of landfill burden. For Richmond Hill homeowners conscious of environmental impact, metal roofing aligns with reducing your home's lifecycle carbon footprint while delivering superior durability through decades of 780 mm rain, 120 cm snow, and seasonal freeze-thaw stress.

Is a metal roof a good choice for Richmond Hill’s climate?

Yes. Richmond Hill averages about 117 cm of snow, 780 mm of rain, roughly 86 freeze–thaw days a year, with peak wind gusts near 113 km/h. Interlock® aluminum roofing is wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated and Class A fire-rated, and its four-way interlocking panels shed snow and resist ice dams and freeze–thaw cracking — all backed by a lifetime limited, transferable warranty.

Last updated:

Interlock metal roofing — get a free quote