Exterior Home Improvements in St. Catharines, ON

When was the last time you really looked at your home's exterior? Not a quick glance from the driveway, but an honest look at what the roof, siding, windows, and doors are actually doing. Every part of your exterior has a job: keeping weather out, holding heat in, and protecting everything underneath. When one piece starts to slip, it puts more pressure on the others, and what starts as a small issue can quickly become much bigger.

Approaching your exterior as a whole rather than a series of separate fixes is what separates a home that stays solid for decades from one that always seems to need something. That’s the philosophy behind every project at Gerry's Roofing & Siding. Serving St. Catharines and the wider Niagara region since 1980, we coordinate roofing, siding, windows, and doors under one roof so nothing falls through the cracks.

When Exterior Materials Start to Break Down

Most homes in St. Catharines are well past the point where original exterior materials are still performing at their best. You might notice shingles losing granules or sections of the roof that look uneven after winter. Siding can start to fade, warp, or crack after years of exposure. Windows that once felt secure begin to let in drafts, especially around the frames. 

Looking at these systems together helps you prioritize what needs attention first. Instead of wondering where to start, we’ll show you which improvements are truly worth the investment.

Roofing That Goes Beyond the Basics

Your roof is the first line of defense for your home, and in a climate like St. Catharines, it takes a lot of wear and tear over the years. We install asphalt shingle roofing from IKO, flat and rubber roofing from Euroshield, and metal roofing from Ontario Metal Products.

Each option is selected based on your home’s structure, slope, and long-term goals. Some homeowners are looking for a straightforward asphalt solution, while others want the durability of rubber or metal systems that withstand repeated freeze-thaw cycles. See the full breakdown of our systems, materials, and processes on our dedicated roofing page.

Siding That Reinforces Your Home

Siding does more than just change how your home’s exterior looks. It also plays a major role in insulation, moisture control, and overall structural coverage. And in St. Catharines, your siding needs to be tough enough for every season.

We install vinyl, steel, and composite siding through Royal Building Solutions, along with fiber cement siding through James Hardie. Each material offers different advantages depending on your home’s exposure, maintenance preferences, and the look you want to achieve. Learn more about what goes into a great installation on our siding page.

Windows & Doors That Work Together

Windows and doors are often overlooked until they stop doing their job. Drafts, condensation, or difficulty opening and closing are usually signs that replacement is the better path forward.

We install vinyl windows and steel, wood, and fiberglass doors through Del Windows & Doors. Combining windows and doors into one project keeps your home’s appearance consistent. It also ensures that every opening in your house meets the same modern insulation standards. Take a closer look at the products we work with on our windows and doors pages.

Bringing Light In & Keeping Moisture Out

Water management and ventilation are just as important as roofing and siding, even though they’re often less visible. We install metal eavestroughs through Gentek and gutter guards through Alu-Rex as a certified installer. These systems help direct water away from your home, preserving your foundation and landscaping while reducing upkeep.

We also put in Velux skylights and sun tunnels, whether as part of a larger project or as a standalone upgrade. These additions bring natural light into spaces that would otherwise rely on artificial lighting, improving how those areas feel day to day.

Dig into the details of our gutter systems on our gutters page, and see how a Velux skylight or sun tunnel might brighten up your home on our skylights page.

Why Choose Gerry’s Roofing & Siding?

Gerry’s Roofing & Siding has been family-owned since 1980 and has completed more than 30,000 projects across Southern Ontario. That level of experience shows up in how projects are managed, how materials are selected, and how consistent the results are from one home to the next. We work year-round, so you don't have to wait for a narrow seasonal window to get started. Projects move forward when you’re ready, not just when the calendar allows.

Our Transferable Lifetime Workmanship Guarantee is also one of the strongest protections available, covering the original homeowner for life and extending up to 20 years to the next owner if the home is sold. Along with that, we maintain an A+ BBB rating, have earned HomeStars Best of Award recognition, and continue to be recognized across the region for project quality.

Frequently Asked Questions

Do you work throughout all of St. Catharines?

Yes! St. Catharines is a core part of our coverage map, and our specialists work across the entire city rather than limiting projects to specific neighborhoods. Check out our service areas page for more details.

Do you offer financing?

Payment plans are available for eligible projects. We’ll go over the details with you during your quote so you understand the available options.

How does the workmanship guarantee work?

The original homeowner receives lifetime workmanship coverage starting from the installation date. If the home is sold, up to 20 years of that coverage transfers to the new owner.

What happens after the project is complete?

We stand behind our work with a Transferable Lifetime Workmanship Guarantee, so you’re covered long after installation. If any questions come up down the road, you’ll still have a team you can reach out to.

Everything Your Home Needs, Handled in One Place

Not every home needs the same thing, and a good exterior project starts with a conversation about where yours stands. Gerry's Roofing & Siding has been having that conversation with St. Catharines homeowners for more than 45 years, and the process has always been the same. We’re here to listen first, plan carefully, and deliver work that holds up.

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