Five Reasons You Can Feel Confident
These aren't marketing slogans. They're verifiable facts you can check yourself.
SAWDAC Certified — Only 17 in Canada
Window Wise is an independent quality assurance program run by SAWDAC (Siding and Window Dealers Association of Canada). It audits our installation practices against the CSA-A440.4-07 national standard. This means every install follows a documented, tested process — not "however the crew feels like doing it today."
Out of thousands of window companies in Canada, only 17 hold this certification. Ask any other company you're considering: "Are you Window Wise certified?" If they say no, ask them what standard they follow instead.
100% Pure Virgin Vinyl — Not Recycled
Most competitors use recycled vinyl because it's cheaper. The problem? Recycled vinyl is weaker, thinner, and more prone to warping and yellowing — especially in Calgary's extreme temperature swings from −40°C to +35°C.
Our frames are 20% thicker than recycled vinyl frames. They're fusion welded (not mechanically joined), lead-free, and built by Vinyl Bilt with 40+ years of Canadian manufacturing experience. They won't warp, crack, or yellow. Period.
25-Year Warranty — Covers Everything
Parts AND labor. Fully transferable to the next homeowner. And here's the thing that shocks people: we cover glass breakage. Even a hockey puck through the window. Most competitors specifically exclude glass breakage, or bury exclusions in the fine print.
Our warranty is also fully transferable, which means if you sell your home, the next buyer inherits the full warranty. That's a selling point for your home that most competitor warranties can't match.
See Full Warranty Details
1,529 Google Reviews — 4.7 Stars
Not 50 reviews. Not 200. Over fifteen hundred real Calgary homeowners sharing their real experiences. A 4.7-star average at that volume means consistent quality — not a handful of happy customers and a lot of quiet ones.
These aren't paid testimonials or cherry-picked quotes. They're real Google reviews that anyone can read and verify. Go ahead and search "GreenFox Windows Calgary" on Google — see what people say.
Alberta Made — Built for −40°C
GreenFox is Alberta's own. We're local — manufactured right here for our climate. Triple-pane argon Low-E glass standard. Intercept stainless steel spacers that flex with temperature changes. Triple weather seals.
This isn't a product designed for mild coastal weather and sold here anyway. Every component — from the glass package to the foam insulation to the drainage flaps — is chosen because it performs in Alberta's extreme conditions.
See Product Details
Awards & Certifications
15 years as a Consumer Choice Award winner. These aren't self-awarded — they're earned by customer votes.
Meet the Team That Does the Work
These are employees, not subcontractors. Every installer goes through our SAWDAC-aligned training program. You'll see the same familiar faces on install day.








Our installers are employees who go through our SAWDAC-aligned training before they touch a customer's home.
You won't get a random team on install day. Our crews are consistent, reliable, and know the GreenFox process by heart.
We install through −30°C winters. Cold-weather foam, cold-weather sealant, and full home protection when it's freezing outside.
What Calgary Homeowners Say
Real reviews from real Google profiles. Not cherry-picked. Not paid.
“Adam Z. was the representative from Greenfox and he felt the most genuine in his approach… Turned out to be a fantastic decision, Adam was terrific. He was incredibly thorough going through all the information with us.”
“Adam, our original contact with Greenfox was a pleasure to deal with and gave us real world advice on when and how to go about our project. The install crew was efficient, and cleaned up thoroughly. They are not cheap but well worth the money.”
“Great experience working with greenfox, Thanks Adam for helping with the quote and follow up with the delivery when we needed the job done urgently. Will definitely work with greenfox again for sure.”
“A big thank you to Adam and the GreenFox team for the installation of my new egress windows. Adam recommended I visit their showroom to explore an option that would work best for my basement installation. I highly recommend GreenFox!”
“Great experience with Adam at GreenFox! They replaced our windows efficiently and the new ones are great. Friendly team and excellent service.”
“We love our new windows! GreenFox was very professional, friendly and efficient from start to finish. The final inspector, Adam, was helpful and friendly. We highly recommend GreenFox!”
We Plant a Tree for Every Project
It's a small thing, but it matters to us. Every GreenFox project puts a tree in the ground. Better windows, better air, better Calgary.
A Message from Adam
I didn't start in an office — I started on the ladder. I installed windows for 5 different companies before joining GreenFox as an installer. I know every step of this process because I've done it myself, thousands of times.
In 2023, I was awarded the Window Wrangler Award — GreenFox's recognition for their top installer. Today I'm your Project Manager, and I still inspect every installation personally.
That's why I built this resource hub: so you can see exactly what goes into a proper installation before you make your decision. No pressure, no hidden fees. If you have questions, you'll talk to me directly — not a call center.