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Entry & Patio Doors for Hamilton Homeowners
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Built for Better Coming and Going
You probably don't think much about your front door until it starts giving you trouble. Maybe it takes a shoulder to close in the winter, the lock jiggles more than it used to, or your patio door has turned into a two-person job just to slide open. But none of that has to stick around.
We're Gerry's Roofing & Siding, and we've been family-owned and locally operated in Hamilton since 1980. Our team installs entry and patio doors from Del Windows & Doors, a trusted Canadian manufacturer. Let’s find the perfect door for your home, so you can stop wrestling with your lock and start loving your entryway.
From Curb Appeal to Backyard Access
Not every door on your home does the same job, and the right replacement depends on which one you're dealing with. Here's a breakdown of the two we install most often:

Your entry door is the first thing people see when they arrive at your home, and it carries a lot of responsibility beyond looks. It's part of your home's security system, its insulation against the outdoors, and the point of contact between you and everything outside your front step. We install entry doors from Del Windows & Doors in steel, fibreglass, and wood.

Patio doors carry their own set of demands. They connect your indoor living space to your backyard, deck, or patio, and they need to slide or swing easily while still sealing tight against the weather. Our patio door systems come in a variety of configurations and glass options, so you can bring in natural light without sacrificing performance.
The Signs of a Door Past Its Prime
Your front door gets used more than almost anything else on your house, so it's worth paying attention when it starts acting up. A door that's become hard to open or close, gaps that have formed between the door and the frame, and cold air sneaking in during the colder months are all signs the seal isn't doing its job anymore. A lock or set of hardware that feels loose or unreliable is a security concern as much as an inconvenience, and a door that looks worn next to a well-kept exterior can throw off the whole look of your home.
Patio doors show their age in their own way. Panels start sticking as they slide or swing, air slips in around the edges, condensation fogs up between the glass panes, and hardware stops operating smoothly. If any of this sounds familiar, whether it's your front door or your patio door, it's worth having someone take a look before the problem gets more costly to fix.

A Closer Look at Steel, Fibreglass, and Wood
Choosing a door material comes down to how much upkeep you want to take on, the look you're after, and how the door needs to hold up over years of regular use in Hamilton's climate.
Steel: Nothing about steel demands your attention once it's installed. It resists dents, deters break-ins, and keeps performing through freezing winters and sticky summers.
Fibreglass: Fibreglass adapts to whatever the sky throws at it and stays true to its shape. Choose from countless finishes and get the look you want without extra effort.
Wood: There's a natural richness to wood that other materials try to imitate but rarely match. However, it requires more consistent maintenance than steel or fibreglass doors.
Whichever material you land on, we'll make sure it's installed with the same level of care and craftsmanship. Feel free to bring your questions, and we'll help you narrow things down based on what matters most for your household.
What to Expect on Installation Day
A door replacement might seem like a smaller project compared to a full remodel, but it's one of the most frequently used openings in your home. Here's how we handle every installation at Gerry’s Roofing & Siding, from the first conversation to the last:
Step 1: Planning the Project
We’ll start by talking through door style, material, hardware, and glass options based on what you're looking for. Your current opening gets checked just as thoroughly, with any concerns about the frame or trim noted ahead of installation day.
Step 2: Protecting Your Home
Before any work begins, we’ll protect nearby floors, walls, and surfaces to keep your home clean throughout the project. Once that's set up, we’ll carefully remove the existing door and frame and make sure everything underneath is ready.
Step 3: Fitting and Sealing
Our technicians will set the new door in place with a focus on level, alignment, and weather sealing. Homeowners often don't realize how much this step influences the result, since even a well-made door can underperform without precise alignment.
Step 4: Testing and Final Review
After installation, we’ll run through the lock, handle, and overall operation, tweaking anything that needs it before we walk away. And before we leave, we’ll also go over the finished work with you so you know exactly what was done.
Why Choose Gerry’s Roofing & Siding?
A new door shouldn't turn into another project you have to redo a few years down the road. The people installing it are just as important as the product itself, since workmanship determines how the door behaves once it's part of your home.
We've worked from Hamilton since 1980, completing more than 30,000 residential exterior projects across the region. Every door we install comes with our Transferable Lifetime Workmanship Guarantee, covering the original homeowner for life and transferring to the next owner for up to 20 years. Gerry’s Roofing & Siding also holds an A+ Better Business Bureau rating, a HomeStars Best of Award, and recognition from ThreeBest Rated.
Curious what our finished work looks like? Take a look at our project gallery, or check out our customer reviews to hear directly from homeowners we've worked with. For anyone planning several exterior upgrades at once, we also offer payment plans to help spread out the timing.

Across Hamilton, Niagara, and Nearby Communities
Hamilton is where we're based, but our door installations reach well beyond it. We regularly work in Ancaster, Dundas, Stoney Creek, Waterdown, Mount Hope, Flamborough, Burlington, Oakville, Grimsby, Brantford, St. Catharines, Niagara Falls, Welland, Mississauga, Milton, Caledonia, and other communities within about 45 minutes of the city.
That reach means we've worked on everything from century homes in established Hamilton neighbourhoods to newer builds in the surrounding suburbs. Visit our service area page for more information and to confirm coverage at your location.
Frequently Asked Questions
Gerry’s Roofing & Siding offers steel, fibreglass, and wood entry doors, along with a range of patio door configurations, all from Del Windows & Doors.
Yes! Materials, finishes, glass, hardware, and configurations can all vary depending on the product you choose. One of our design consultants will help narrow things down based on your entryway's style and how you use it.
We recommend having someone available at the start and end of the appointment, but you don't need to watch over the entire process.
In many cases, yes. We'll go over the finish and colour options available so your new door complements the rest of your exterior.
Make Your Door Worth Coming Home To
A front or patio door should open, close, lock, and seal without ever crossing your mind. If yours has started sticking, leaking air, or looking tired next to the rest of your home, we're happy to help you sort through your options without overcomplicating things.
We'll take a look at your current door, talk through materials and configurations, and put together a clear quote before any work begins. Reach out to Gerry's Roofing & Siding today to get started on your door replacement in Hamilton.
Thinking About New Doors?
Doors should work without being something you think about every day. If yours no longer do, our experts can help you explore replacement options and timing without pressure. Request your free door quote with Gerry’s Roofing & Siding today and move toward a home exterior that feels complete again.
Our Doors Gallery
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Saturday: 9:00AM - 5:00PM
Sunday: 9:00AM - 5:00PM