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

You came to the right place! Since 1980 we've been making home owners' dreams a reality by providing a trustworthy, unparalleled service 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 project.

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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.

Roofing Companies Hamilton

Our Showroom

Complete Home Exterior Renovations Under One Roof

Is your roof overdue for a repair that you've been putting off for fear of having to find a roofing company you can trust who won't rip you off? Or are your home windows old, outdated and doing a poor job of keeping cold air out? Our team isn't a one trick pony. We're skilled to handle a wide range of home exterior renovations 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 boast 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

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.

Roofing Companies Hamilton

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.

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.

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