Looking For A Hamilton Roofing Company That Operates On The Principles Of Excellence, Integrity & Teamwork?

You came to the right place! Since 1980 our roofers and exterior installation specialists have been making homeowners' dreams a reality by providing trustworthy, unparalleled home improvements and delivering beautiful results.

From the first time you contact us, you'll know you've made the right choice in trusting us with your home exterior renovation project.

Book Free Quote Call 905.549.7112

Award Winning Hamilton Roofers & Exteriors Company

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Readers Choice Award
Three Best Rated Roofers
Google Reviews On Our Roofers
HomeStars Award For Best Roofers
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Welcome to a better roofing experience.

Family owned. High-end service. Affordable pricing. Welcome to the roofing company that does it alland keeps it personal, so you can trust the end results.

Our Story

What began as a summer job for our founder Gerry St. Germain quickly became his livelihood, and today Gerry's Roofing & Siding is known as one of Hamilton, Ontario's most trusted roofing and siding companies.

With Gerry retiring and passing down the business to long time employee Joel Knight and his wife Karena, we're positioned with the same values that made us stars in our field for years to come.

Joel & Karena Owners of Gerry's Roofing

Joel & Karena Knight

Complete Home Exterior Improvements & Renovations Under One Roof

Are your home windows old, outdated, and poor at keeping cold air out? Or are you looking to redo your home's siding? In addition to being a full-service roof company, we offer a complete home exterior renovation experience. Our team isn't a one-trick pony. We're skilled in handling a wide range of home exterior improvements and have won a few awards over the years to back it up!


Time for a new roof? No problem. It's kind of our thing. We'll provide you with personalized solutions to pick what is best for your budget. Our warranty will leave you feeling confident the job was done right.

Explore Our Roofing Services
Roofing Hamilton


Leaky eavestrough? We've seen our share. Our expert installers will make sure not only do the new ones look beautiful, they'll perfectly guide the water away from your home to avoid doing any damage.

Check Out Our Eavestroughs


Looking to upgrade your curb appeal? We got you. With many modern products and styles to pick from, your house will become the standout on your block and the envy of your neighbours.

Learn About Our Siding Offerings
Hamilton Siding & Skylights Installation


Want more natural light? We can make it happen. Not only do skylights look great, but the addition of more natural light can have a positive impact on your mood and reduce electricity use.

View The Skylights We Install


Drafty windows? Yes, that's a common problem. Having great function and form with windows can boost the value of your home by appeal and energy savings. It's a great investment to make.

See Our Window Options
Hamilton Windows & Doors


Current door not up to your standards anymore? Let us save the day. With doors being one of the first things people see, it's important to get it right. We combine both beauty and security with our selection of doors we offer.

Discover New Doors For Your Home

We've Installed Over 25,000 Projects In The Hamilton Area

We're incredibly proud of how many homeowners in the great city of Hamilton we call home we've worked with on their home exterior renovations.

This map showcases the projects we've done over the last two years. We've organized them by project type. You can browse them by clicking the arrow icon in the top left corner.

Our Roofing Services Near You

We know that dealing with roof problems like a leaking roof or needing a complete roof replacement can be a stressful time. Let us give you peace of mind knowing your roof is in trusted hands. We offer a full range of services to handle any roofing job you need to be completed.

roofing service

Roof Replacement

Let's make your home stand out and give it that curb appeal you've always wanted.

roof inspection

Roof Inspection

We'll give you an honest assessment of your roof's condition and advise you on multiple options.

asphalt shingle roof repair

Roof Repair

The stress of a typical roof leak or other damage is never fun for a homeowner. We can help.

Residential Roofing Shingles

Asphalt Shingle Roof

You can never go wrong with the most affordable and popular roof on the market.

Euroshield Beaumont Shake

Euroshield Rubber Roofing

The absolute best roofing material for the higher-end, maintenance-free roof you can buy.

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Metal Roofing

Gaining popularity, a metal roof will outperform an asphalt shingle roof, but find out what's even better.

Don't hesitate. Contact us today to get started!

Why Homeowners Choose Us

Many things set us apart from other roofing companies. But it's the way we treat our customers that we're most proud of. We're in this for the long haulheck, we've been in it since the long haul way back from 1980. We wouldn't have lasted this long if we weren't doing something right.

We know the roofing industry doesn't have the best reputation, but we take great pride in being one of the few companies you can actually trust.

gerrys customer 1

We Put Customers First

It's our mission to give you personalized service from start to finish so good, you'll be raving to your neighbours, friends and family. We'll listen to your concerns and educate you on your options. The end result being high end service tailored just for you.

Expert Installations

Our standards are high and nobody is a bigger critic of our work than us. Our crews have years of experience and are highly skilled in their craft. Each of our installers provides attentive and experienced results, making sure each project is flawless.

Over 40 Years Of Experience

We're proud to be one of Hamilton's longest running companies offering roofing, siding, windows and doors. Working with the community and building long lasting relationships never gets old to us. It's what we strive for.

Our Customers Love Us

It's simple; a happy customer is just good for business. Don't just take our word for it, you can find 100s of happy reviews about us online. A big part of our business is word of mouth referrals—the ultimate stamp of approval.

Easy Financing Options For Your New Roof & Exterior Projects

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You have a budget. We have a payment plan to match it. We’ve partnered with Financeit to offer great financing options.

If you're looking at finance options to help with your project, our sales team can gladly advise you on some options.

Learn More

Man signing finance agreement for new roof
Gerry's Roofing Satisfaction Guarantee

We Know Our Hamilton Roofing Contractors Are The Best For Any Roofing Services You Need Done

We’ve been offering full service roofing services to the Hamilton and GTA area since 1980 specializing in both residential and commercial roofing systems.

Your roof has a simple yet important job; to protect your most valuable investment. Whether this is your home or commercial property, the condition of your roof will determine how well it protects against the outside elements and keeps your property safe.

Our roofing contractors are experts at what they do no matter what roofing material or installation type is being completed. So whether your roof is flat or pitched, metal or shingles, residential or commercial property, we’re confident we stand out amongst all the roofing companies in Hamilton.

No matter if the job is a small roof repair, or a large new roof installation or replacement, we’ll provide the same level of attention and care to each project. All of our roofing services are priced reasonably and affordably with finance options available.

So if you find your residential or commercial roof is in need of repair, or a brand new installation, contact us today to setup a free, no obligation quote. From the first time you speak with us, our team will handle your project with care and assure it runs smoothly and hassle free.

What are you waiting for? You have nothing to lose. Let us show you we’re the best Hamilton roofing company out there.

Book Free Quote Call 905.549.7112

Our Customers Tell It Best

Dear Gerry, Collen and I wanted to thank you again for your superb craftsmanship when installing the roofing on our new addition. You worked carefully and precisely, taking your time to achieve a really good job that blends well with the existing house.

Lucian Lordache

Read More Of Our Reviews

Don’t hesitate. Contact us today to get started!


Roof Repair Hamilton


Roofing Contractors Hamilton

See The Difference

A picture is worth a thousand words they say. We can write about all the reasons why hiring us for your job is your best choice, but what better way than to show you what we can do?

Our work speaks for itself.

Hamilton Roofing Services View More Of Our Work

Proudly Servicing The Greater Toronto & Hamilton Area / GTHA

Our showroom and office is located in Hamilton. We happily serve the surrounding area and the below list of cities is not the only cities we work in. If you're close to the Hamilton area, reach out to us and we'd love to quote your job.

downtown hamilton


Where we call home for the last 40 years. Hamilton is a older city with a lot of history. If you're in need of a new roof installation for your older home, or just some roof repairs, you can trust us to handle the job.

burlington ontario


Burlington's hot and humid summers paired with their freezing winters puts a lot of stress on a home's roof. These extreme fluctuations of temperatures means you need to keep an eye on your house's roof.

milton ontario


In rapidly expanding Milton, Southern Ontario, we cherish enhancing its beautiful homes. Whether upgrading siding, windows, or doors, we relish working in this vibrant city.



With Mississauga being located on the shores of Lake Ontario, it can see some extreme winter weather as well as the usual hot summers. This can lead to exterior house damage like leaking roofs and eavestroughs.



As Ontario's largest town, Oakville experiences a wide weather range due to its Great Lakes location. Homes closer to the lake can face harsher conditions, leading to potential roof damage.


Located along the Grand River, Brantford endures weather extremes from scorching summers to harsh winters. Such conditions can lead to exterior home damages like leaky roofs and eavestroughs.

Niagara Falls

Situated near Niagara Falls, this city faces varying weather extremes, from hot summers to cold winters, potentially leading to roof damage.

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Spring Is In The Air Promotion

Get 10% off all roofing projects in June!


Get 10% off all siding and gutters projects in June!