Windows Replacement
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Our Windows Products








Types of Window Installations We Offer
Brick-to-Brick
- Complete removal of the old window down to the house framing
- Optional brick mould accessories available in three sizes
- Allows for upgrades to interior trim and jamb
- Offers greater energy efficiency compared to retrofit
- Ideal for replacing damaged or poorly insulated windows
Stud-to-Stud
- Full removal of the old window down to the framing
- Exterior finished with caulking or aluminum flashing
- Delivers better energy efficiency than retrofit installations
- Best suited for homes with aging or underperforming windows
Retrofit
- The window is removed and replaced
- Existing frame and interior trim remain intact
- Faster and more cost-effective than full window replacement
- Ideal when the frame is well-insulated and in good condition
- Enables glazing upgrades for better comfort and performance
Our Vinyl Window Features
- Durable extruded vinyl construction
- Fusion-welded 3-1/4” or 4-9/16” frame and sash for superior strength
- Multi-hollow chamber design to increase rigidity and insulation
- Warm-edge, non-metal Super Spacer®
- Triple-layer weatherstripping offers advanced protection against wind infiltration
- Standard white finish, with 32 additional colour options available
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UV Protection With uPVC Windows
Our exterior windows are manufactured using an exclusive, 100% lead free uPVC powder compound. These uPVC windows are designed to endure prolonged exposure to sunlight. The compound offers excellent resistance to impact and fading, ensuring that the windows do not crack, discolour, blister, or warp, while remaining entirely maintenance free. If you are looking for a top-notch quality window suppliers in the Greater Toronto Area, then don’t hesitate to reach out to us.
Weather Proof Windows for Homes
Advanced triple weather stripping provides a superior seal and effective leak protection through an integrated locking system, secured at the corners, and attached to the window frame. This design ensures consistent locking at the top corner of the window, regardless of its height. Corners are typically the most vulnerable points in structural integrity and air infiltration tests.
Window Replacement in 5 Easy Steps
Window Replacement in GTA
AZTech Doors & Windows is a trusted window replacement company – Quality, Efficiency, and Style. We specialize in window installation services across the GTA (Greater Toronto Area). As a family-owned Canadian company with over 25 years of experience, we have become a trusted name known for superior quality and personalized exterior window replacement services. We also offer made-to-order windows that provide long-lasting durability, high performance, and visual appeal.
Our full house window installation services include the supply and installation of ENERGY STAR® windows. Designed specifically for Canadian climates. Our energy-efficient windows reduce heating and cooling costs and improve year-round comfort.
Our Recent Blogs
What to Look for Before Replacing Windows This Spring in Toronto and the GTA
Spring is one of the best times to replace old windows in Toronto and the surrounding area. After a long Ontario winter, many homeowners start noticing the same problems all at once: drafts near the frame, rooms that feel colder than the thermostat says, condensation...
Signs Winter Damaged Your Windows and Doors
A Greater Toronto Area Homeowner’s Guide Winter in the GTA is not gentle. Between lake-effect snow, deep freezes, salt spray, and sudden thaw cycles, your windows and doors take a beating every single year. From Vaughan and Richmond Hill to Mississauga, Markham, North...
Why Your Windows Ice Up in Extreme Cold and What GTA Homeowners Can Do
If you have ever woken up in Toronto or Vaughan to a window that looks like it got iced like a donut, you are not alone.Interior window ice is one of the most common cold weather complaints in the GTA, and it usually has less to do with bad glassand more to do with...







