London, ON Aluminum Roofing — Charcoal Slate Review (Interlock, 2021)

London, ON

TL;DR: London Review Summary

Roofing installation in London: homeowners selected charcoal slate aluminum shingles from Interlock and had them installed over the existing roof to avoid a tear-off and reduce landfill. Installers were professional and thorough with cleanup, the finished roof drew neighborhood interest, required no strapping, and the homeowners (and their neighbors) highly recommend Interlock.
Fred F.

We purchased this product from Interlock after admiring other projects they had completed in our neighbourhood. The owners of the other homes highly recommended Interlock Industries, as do we. Our roof has drawn interest from many passerby’s during the installation and since completion. The charcoal slate product we selected is very striking. The Installer who completed the project did an excellent job and was thorough in his cleanup during and at the end of the project. Since the aluminum “shingles” were installed on top of the existing shingles there was no need to dump a whole load of old materials into landfill which was an important consideration in our decision. And since our original roof was in fairly good condition, a layer of strapping was not required before installing the aluminum product.

Positive: Professionalism, Value
Services: Roof installation

London, ON

Roof Details

Roof Installation Location: London, ON
Roof Installation Year: 2021
Roof Age: 4 years, 9 months, 11 days
Review Submitted: 4 years, 9 months, 11 days after completion date
Roof System: Interlock® Slate Metal Roofing
Roof Material: Aluminum
Roof Colour: Deep Charcoal
Roof Coating: Alunar® Coating System
Roof Warranty: Lifetime Limited Warranty

Roofing Promotions in London, 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 London

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 London

Homeowners researching metal roofing in London 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 London 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 London, ON will commonly last at least 50–75+ years, while asphalt shingles typically last much shorter (often 15–25 years depending on product and installation). London experiences freezing, snowy winters with regular freeze–thaw cycles and measurable snow loads—conditions that accelerate wear on roof membranes and cause ice-damming on weaker systems. Summers are warm and can be humid, with occasional severe storms that stress fasteners and edges. These local factors make durable, low-maintenance materials attractive: metal resists rot, shedding snow and ice more effectively than asphalt, and stands up better to wind and freeze–thaw damage. Many homeowners in London choose long‑life metal systems to minimise replacements and lifecycle costs. Interlock Metal Roofing systems use heavy‑gauge aluminium and come with a lifetime limited 50‑year transferable warranty, designed for long‑term protection in this climate.
Metal roofs in London, ON typically cost more upfront than asphalt shingles, but offer longer service life and lower lifetime repair/replacement costs. London experiences cold, snowy winters with frequent freeze–thaw cycles and seasonal snow loads that can stress underlayment and fasteners—conditions that make metal’s durability and snow-shedding advantages worth considering. Actual installed cost depends on roof size, slope and complexity, tear-off or re-roof, flashing and skylight work, access and labour. Local construction factors (winter scheduling, ice-dam prevention, ventilation requirements) also affect price. Many homeowners compare options on lifetime value rather than initial price because a durable metal system can reduce future repair and replacement costs. Interlock Metal Roofing focuses on long-term ownership value rather than competing as a low-cost roofing option.
London’s climate includes regular snow/ice and frequent freeze–thaw cycles plus year‑round precipitation—conditions that stress roofing materials and can drive ice dams and accelerated asphalt wear. Lifespan: asphalt shingles typically last ~15–25 years in London’s climate; metal roofs often last 40+ years with proper installation. Maintenance: shingles need more frequent inspections, moss/ice removal and patching after storms; metal needs less routine upkeep. Durability: metal resists freeze–thaw damage, sheds snow and resists wind/ice better; asphalt is more prone to granule loss, curling and leaks over time. Long‑term value: higher upfront cost for metal often pays off via longer life, lower maintenance and fewer replacements. Homeowners who prioritise long‑term protection and curb appeal often choose metal. Interlock Metal Roofing systems appeal because they combine durable, weather‑resistant performance with clean architectural lines and lasting aesthetic value.
This is a common myth. Modern residential metal roofs installed over solid decking do not sound like barn roofs—rain noise is usually comparable to other materials. Insulation, an enclosed attic or underlayment, and the overall roof assembly significantly reduce impact noise. Installation quality and fastening methods also matter: poorly installed systems or exposed purlins can amplify sound. Properly installed residential metal roofs are typically similar in sound to asphalt or tile roofs. Interlock Metal Roofing systems are installed as complete residential roofing systems, engineered and fitted to perform like conventional roofs while providing metal’s long‑term durability.
In London, ON, a metal roof can be energy efficient because its surface often reflects sunlight, reducing heat gain in summer. Overall performance depends on the roof assembly — including underlayment, insulation and ventilation — which together control heat transfer and moisture. Local climate also matters: seasonal sun, humid summers and cold winters influence whether reflective coatings or added insulation will pay back. Homeowners researching roof replacement often prioritise energy efficiency to lower heating and cooling costs, improve year‑round comfort, extend roof life, and increase resale appeal or qualify for rebates. When comparing options, look at whole‑roof performance rather than panel material alone. Interlock Metal Roofing systems are designed to support long‑term home performance, combining durability with compatibility for high‑performance assemblies.
London, ON roofs must withstand seasonal heavy snow, freezing rain, strong winds and occasional summer hail and convective storms, per local forecasts and advisories. Metal roofing performs well: interlocking steel or aluminium panels resist wind uplift when engineered and fastened correctly, shed snow and ice, and suffer less hail damage when made from thicker gauge or impact‑rated profiles. Actual performance depends on roofing system design (profile, fastening, underlayment), installation quality (details at eaves, ridges and penetrations) and material durability (gauge, coating, impact rating). Homeowners consider weather resilience to protect the home, lower leak risk, reduce repair costs and meet insurer expectations. Interlock Metal Roofing systems are engineered for durability, hail protection and wind resistance; specified and installed to local code, they offer reliable long‑term performance.
Metal roofing performance varies by metal type: steel, zinc, copper and aluminium each behave differently with regard to corrosion. Some materials — aluminium, zinc and specially treated steels — are much more resistant than untreated steel. Aluminium performs particularly well in wet or coastal environments because it forms a protective oxide layer and resists salt‑air attack. Homeowners should prioritise corrosion resistance to extend roof life, reduce maintenance and repair costs, avoid leaks, preserve curb appeal and resale value. Choosing corrosion‑resistant materials can also help maintain warranty coverage and lower lifecycle costs. Interlock Metal Roofing Systems use aluminium construction engineered for strong corrosion resistance and are protected by the Alunar Coating System for extra protection against moisture and atmospheric exposure.
Metal roofing in London, Ontario is generally considered a durable, low‑maintenance choice. However, no roof is completely maintenance‑free. Homeowners should inspect their roof at least twice a year and after major storms. Remove seasonal debris from the roof and gutters to prevent trapped moisture and abrasion. Check flashings, sealants and roof penetrations such as vents, chimneys and skylights for secure attachment and signs of corrosion or seal failure. Weather events—ice, wind or heavy rain—and fallen branches can cause dents, loose fasteners or displaced panels. Routine, simple upkeep preserves performance and warranty coverage, making metal roofing a long‑lasting, relatively low‑effort option for London homes.
In London, ON, metal roofing can increase home value. Homebuyers in the area often value durable, low‑maintenance roofs because they reduce future repair costs. Premium roofing materials also boost curb appeal and can set a home apart in local listings. A long lifespan—often decades for quality metal—gives buyers confidence in fewer replacements and lower insurance and maintenance concerns. Architectural style matters: the right metal profile should complement the neighbourhood’s character and your home’s design. Interlock Metal Roofing systems offer multiple architectural profiles—slate, cedar shingle, Mediterranean tile, shake and standing seam—available in heavy‑gauge aluminium and solid copper, allowing you to match traditional or contemporary styles while delivering lasting performance. This combination can translate to stronger resale value in London’s market.
Yes. Interlock Metal Roofing Systems are solar‑compatible — Interlock Metal Roofing (Ontario) Ltd. installs custom solar brackets and the systems are engineered to accept solar mounting solutions. In London, frequent winter freeze–thaw cycles with ice‑damming risk and humid, rainy summers that can encourage moss growth affect roofing performance and mounting details. Panels add weight and penetrations, so using Interlock’s custom brackets and approved attachment methods helps preserve waterproofing and warranty. Roof lifespan matters when adding panels: choose long‑lasting materials and consider future solar plans when replacing your roof to avoid premature rework. Durable metal roofs are often preferred for solar and make future upgrades simpler.

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Interlock Metal Roof Review in Sudbury, ON (Installed 2022)

Review: April 30, 2026

Completion: March 31, 2022

I attended the Sudbury home show on April 25th and had chance to meet Bruce Mehuys with interlock roofing. I purchased a home 2 years ago and had an interlock metal roof. The quality and workmanship was second to none. Bruce was very informative and knowledgeable. I would recommend them to anyone.

Ray L.

Sudbury, ON

Edmonton, AB Interlock Metal Roofing Review (Installed 2014)

Review: April 27, 2026

Completion: July 14, 2014

I’ve had my interlock roof for 14 yrs and have had no issues with it until this last winter. We had heavier than normal snow and a lot of freeze thaw conditions. Several of the snow deflectors were pushed forward and lifted some of the roof. I emailed Dave and Tyler and repairs were made quickly . You can’t tell there was any concerns at all.

Robert B.

Edmonton, AB

Metal Roofing Review in Edmonton, AB — Interlock & Yorman (2026)

Review: April 25, 2026

Completion: April 21, 2026

Yorman and his crew were very pleasant to deal with. There were no issues—just great communication and professional workmanship throughout the project. The crew cleaned up the job site at the end of each workday.

I would recommend Interlock to anyone looking to add value to their property.

Roxy Z.

Edmonton, AB

Metal Shingle Roof Review in Sudbury, ON (Interlock - Installed 2017)

Review: April 25, 2026

Completion: June 7, 2018

We had our roof replaced in 2017 with an aluminum roof by Interlock Metal Roofing. We live on the lake, and prior to the replacement, we were spending thousands of dollars every year because shingles would fly off in the wind.

We haven’t had any issues in the past 7 years. Our experience with Interlock Metal Roofing was excellent — they were very professional and did a beautiful job, even though our roof is quite high and challenging.

Our roof still looks beautiful, and we haven’t had to worry about it at all in the past 9 years.

Beena M.

Sudbury, ON

Corvallis, OR Metal Shingle Roof Review — Interlock (Installed 2017)

Review: April 24, 2026

Completion: November 9, 2017

I love my Interlock roof! No more climbing up to clean it, and no more gritty debris falling into my garden after a few years. It looks fantastic and performs exactly as it should.

The installers were excellent—knowledgeable, detail-oriented, and personable. Ivan is a gem! He handled a small flashing addition efficiently and cleaned the entire roof with a blower in no time.

After almost ten years, it’s still the only roof I would choose.

Sue T.

Corvallis, OR

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

Review: April 23, 2026

Completion: April 23, 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.

Rhonda S.

Ramara, ON

Portland, OR Metal Shingles Review — Safety Anchors Installed 2019

Review: April 20, 2026

Completion: June 20, 2019

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.

Rich K.

Portland, OR

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

Review: April 20, 2026

Completion: June 20, 2019

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.

Rich K.

Portland, OR

Interlock Metal Shingle Roof Review in Bay View, WI (Installed 2009)

Review: April 16, 2026

Completion: February 20, 2009

I had Interlock put on a beautiful red slate roof 17 years ago.The roof still looks beautiful. 5 years ago, I had them also re-roof my garage with the same type of slate. The roofs look gorgeous and I have no maintenance whatsoever.I get complements all the time. The guy whom I contracted with was named "Tim' but has since died. He was a really nice guy. Back in 2009, the roof was much cheaper. ( I actually paid more for the garage 5 years ago!) I am extremely happy with the roofs. The guys did a wonderful job, replacing rotted boards where necessary. They also told me about very cheap gutters I could buy at Menards instead of those ridiculously - priced "special" gutter systems. I bought them and they placed them on my buildings.This home will go to my daughter one day; I do not want her to have to lift a finger. Note that I had an asphalt roof previously. It lasted only 12 years. The shingles curled up under the sun and cracked. They looked terrible. I can honestly say that these metals roofs by Interlock are very much worth what you pay for them. They will last a lifetime with almost no maintenance. Instead of replacing a roof every 15 years and paying lots for asphalt or fiberglass, their metal roofs last very long and you will never have to re- roof again.

Vera P.

Bay View, WI

Interlock Metal Roofing Review in Saint Paul, AB — 50-Year Warranty (Installed 2025)

Review: April 15, 2026

Completion: August 31, 2025

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!

Denis D.

Saint Paul, AB

Interlock Metal Shingle Roof & Snow Guards Review — Owen Sound, ON (Installed 2017)

Review: April 14, 2026

Completion: August 10, 2018

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.

Joan H.

Owen Sound, ON

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

Review: April 14, 2026

Completion: June 30, 2025

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!!

Karen K.

Burnaby, BC

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

Review: April 13, 2026

Completion: May 3, 2016

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.

Dan S.

Aurora, ON

Willowbrook, IL Metal Roof Review — Interlock Roofing (Installed 2016)

Review: April 12, 2026

Completion: May 30, 2016

We had our roofed replaced by Interlock Roofing in 2016. One of the best decisions we’ve ever made! Our roof looks like slate shingles but is entirely metal. We e received many compliments on it over the years Recently we had a lot of strong wind and hailstorms and our representative, John Mondeshean, checked in with us to see if we sustained any roof damage. He came out and inspected our roof for us within a day or two. Luckily we didn’t have any damage. I’ve been impressed by this company and their product from day one. John is the consummate professional. Our roof is now 10 years old and I still say it was the best investment! Highly recommend!

Margot M.

Willowbrook, IL

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

Review: April 11, 2026

Completion: August 27, 2013

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.

Michelle W.

Anchorage, AK

Interlock Aluminum Roof Review in Dexter, OR (Installed 2019)

Review: April 9, 2026

Completion: July 19, 2019

I love my Interlock roof. It was installed about 7 years ago. Recently had indication that a little roof leak was occurring and I called Interlock up. Customer service was excellent and they promptly got a technician out to see what the issue was. Ivan was efficient and knowledgeable and identified the issue and fixed it quickly. He checked over the entire roof to make sure there were no other issues. I’m very happy with the product and the service.

Korenza J.

Dexter, OR

Aluminum Roofing Review in Battleground, WA (Installed 2026)

Review: April 7, 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.

Jon M.

Battleground, WA

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

Review: April 5, 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.

Bruce Peninsula, ON

Last modified: April 27, 2026 2:13 pm
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