Vinyl Windows
Limited-Time Offer!
6 Months No Interest on all Roofing, Siding, Gutters, Window and Door Projects through April!

Bring Balance Back to Your Space with Vinyl Windows
Your windows do a lot of quiet, thankless work. They keep the cold out, the heat in, and the outside world at bay. But when they start to fail, you feel it fast: rising energy bills, uncomfortable rooms, and that persistent chill that no thermostat seems to fix.
The good news is that vinyl window replacement can turn all of that around. New windows make an immediate difference in the overall feel of your home, and with the right team behind the project, the process is a lot simpler than most homeowners expect.
Gerry's Roofing & Siding has been helping Hamilton homeowners get ahead of those problems since 1980. Over 30,000 projects later, we've seen just about every window situation imaginable, and we bring that experience to every job we take on, whether it's a single replacement or a whole-home makeover.

What a Good Window Really Does for Your Home
There's a reason vinyl is one of the most popular window materials in Ontario. It performs well in our climate, it's practical to own, and it delivers real value.
New windows change more than you might expect:
Seal Out the Elements
Vinyl holds up through harsh winters, humid summers, and everything in between. It won't warp, crack, or corrode, and its tight seal keeps drafts out through changing seasons.
Cut Down on Costs
ENERGY STAR-rated options reduce heat loss and keep your home cooler. That improved efficiency adds up, and quality vinyl windows can pay for themselves over time.
Looks Great Without the Effort
There's no painting, refinishing, or complicated upkeep involved. Vinyl holds its colour and structure for years with nothing more than the occasional cleaning.
When you add it all up, vinyl windows are a smart, long-term investment. You get a product that works harder, costs less to run, and asks almost nothing of you in return.

Designed Beyond the Basics
Not all windows are built the same. Every window we install through Del Windows & Doors is designed for lasting durability and comes loaded with features that work together.
Here's a closer look at what's included:
Built Tough: Welded frames and snug corners give every window the structural integrity that holds up over years of use.
Weather-Ready: The right combination of frames and glass means less heat escaping when it's cold and less heat sneaking in when it's not.
Fits Anywhere: The exterior frame works with your home rather than against it, blending naturally with whatever style you've got going on outside.
Fully Custom: From colours to grid styles to how each window is configured, there's enough to work with to get something that feels truly yours.
Crystal Clear: Removing metal from the equation at the glass edge means fewer cold spots and far less moisture buildup as temperatures drop.
Meets Standards: A combination of coatings and gas fills does the heavy lifting, landing solidly within ENERGY STAR territory.
Sun Proof: On bright days, these glass options help deflect heat and reduce glare, so rooms stay enjoyable without having to draw the blinds all day.
Most homeowners never have to think about any of this once the job is done. That's exactly the point. These features, installed correctly, mean your windows take care of themselves so you don't have to.
The Warning Signs Your Windows Are Wearing Out
Not sure whether your windows are due for an upgrade? A few indicators can help you decide.
When you notice drafts creeping in, fog forming between the panes, or windows that fight you every time you try to open them, your windows are past their prime. And if your energy bills keep climbing and you're not sure why, your windows could be part of the issue.
Age is another factor. Windows older than 20 years may still look decent, but their ability to insulate and seal your home has likely declined significantly. If you're noticing any of these signs, it's worth reaching out for a quote to understand your options.
Backed by Warranty, Built with Confidence
When you invest in new windows, you deserve to know that investment is protected. Every project we manage is backed by our Transferable Lifetime Workmanship Guarantee, which covers you for as long as you own your home and extends up to 20 years for future owners.
Our manufacturing partners, including Del Windows & Doors and Gentek, also provide limited lifetime warranties on their products. From the products we install to the experts who install them, every part of your project is handled by people who take that responsibility seriously.

Why Choose Gerry’s Roofing & Siding?
Gerry’s Roofing & Siding is a family-owned company that's been doing this since 1980. That means our reputation is built entirely on the quality of our work and the experience we give our customers. We don't cut corners, we don't rush jobs, and we treat every home with the same care we'd want for our own.
Our reviews and referral rate reflect that, and so does our track record across the region. We also offer flexible payment plans to make the process more manageable, and we're happy to walk you through everything.
We serve Hamilton and the surrounding communities, including Ancaster, Dundas, Stoney Creek, Waterdown, and Burlington. Please visit our service area page for more details.
Frequently Asked Questions
Yes! Vinyl windows are one of the best options for Hamilton homes. They’re built to handle cold winters, humid summers, and constant temperature changes without losing their seal.
In many cases, yes. ENERGY STAR-rated vinyl windows are designed to improve insulation, which can reduce strain on your heating and cooling systems.
No, vinyl windows are known for being low maintenance. Routine cleaning with mild soap and water is typically all that’s needed to keep them looking their best.
Replacing all windows at once provides the most noticeable improvement, but many homeowners choose to tackle their project in stages based on budget.
Where Better Windows Begin
There's no checklist to complete before you call, and no homework to do first. Just reach out to Gerry’s Roofing & Siding, tell us a little about your home, and we'll take it from there.
Trusted By the Biggest Names in the Business!
-460x388.png&w=1080&q=75&dpl=dpl_DpFMQg8kkzCM2LzZzQMyxis2EPjN)
-460x388.png&w=1080&q=75&dpl=dpl_DpFMQg8kkzCM2LzZzQMyxis2EPjN)
-460x388.png&w=1080&q=75&dpl=dpl_DpFMQg8kkzCM2LzZzQMyxis2EPjN)
-460x388.png&w=1080&q=75&dpl=dpl_DpFMQg8kkzCM2LzZzQMyxis2EPjN)
-460x388.png&w=1080&q=75&dpl=dpl_DpFMQg8kkzCM2LzZzQMyxis2EPjN)
-460x388.png&w=1080&q=75&dpl=dpl_DpFMQg8kkzCM2LzZzQMyxis2EPjN)
%201-314x420.png&w=640&q=75&dpl=dpl_DpFMQg8kkzCM2LzZzQMyxis2EPjN)
Contact Us
Mon - Fri: 7:00AM - 9:00PM
Saturday: 9:00AM - 5:00PM
Sunday: 9:00AM - 5:00PM