Serving Grimsby, Hamilton, Burlington & Brantford with premium, energy-efficient windows.
📞 Get a FREE EstimateDrafty windows driving up your heating bills? Apex Windows & Exteriors installs energy-efficient replacement windows that save you money year-round.
We carry a full range of casement, double-hung, bay, and picture windows to suit every home style and budget. Serving Grimsby, Burlington, Hamilton, and Brantford. FREE in-home estimate — we price match all competitors!
Window Repair
Efficiency Rated
Every home has unique architectural needs. We provide a massive selection of high-performance vinyl windows designed for Ontario's extreme temperature swings.
Best for maximum ventilation and security. These hinged windows swing outward like a door and offer the tightest seal against drafts.
Classic aesthetic with modern functionality. Both sashes slide vertically, allowing for easy cleaning from inside the home.
Expand your interior space and let in natural light. Perfect for living rooms looking to create a scenic focal point.
Large, fixed-pane windows that offer unobstructed views. Because they don't open, they provide the highest possible energy efficiency.
Our windows aren't just "new"—they are engineered specifically for the Niagara & Hamilton climate.
"The team at Apex did a fantastic job. Everything was clean, fast, and we noticed our gas bill drop almost immediately after the install." — Brenda S., Burlington
Transparent, fast, and professional from start to finish.
We assess your frames and provide an honest, no-pressure quote.
We custom-measure every opening to ensure a perfect airtight seal.
Our expert crew removes old units and installs new windows in hours.
We apply heavy-duty exterior caulking and leave your site spotless.
We walk you through the operation and lock in your lifetime warranty.
Get a quote for window replacement Southern Ontario. We serve Grimsby, Hamilton, Burlington, Brantford, Niagara & surrounding areas.
Show us any competitor's written estimate for windows and we will beat it. Guaranteed.
📞 Call Last — Save MoneyApex answers "window installation near me" searches from Brantford to Niagara. Select your city for local pricing, FAQs, and a free estimate form.