Windows and Doors Ajax, ON
Replace your doors, windows, or sliding glass doors with interest free loans of up to $40,000 (10-year term) through the Canada Greener Homes Loan and get up to a $5,000 rebate.

Doors Replacement Ajax
Upgrade your home with stylish, secure and energy efficient front and backyard doors. Choose from a wide range of insulated steel or fiberglass options smooth or woodgrain textured for low-maintenance appeal. We offer a wide selection of outside doors for custom orders, giving you plenty of options to suit your home’s style and needs.
Windows Replacement Ajax
Never compromise on window quality, it is key to comfort and energy savings. Our ENERGY STAR® certified windows feature multi-chamber UPVC frames and double or triple glazing for top thermal performance and durability. With superior seals, they maintain indoor temperatures and cut energy costs. Choose from a variety of styles and colours to match any home.

Windows and Doors Installation in Ajax
If you are thinking about renovating your aged home in Ajax, make sure to consider replacing old doors and windows. Not only will it improve your home’s appearance, but it can also help you save on energy bills.
With a wide range of styles to choose from, you will easily find the perfect match for your home’s unique look. Plus, with Aztech Doors & Windows’ expert installers, the entire process will be smooth and hassle-free. Think about replacing them today!
AZTech Doors & Windows Services
Doors
Our doors come in a variety of styles, materials, and features to enhance both the security and aesthetics of any home.
Windows
Explore our stunning window selection where beauty meets functionality for the perfect replacement.
Patio Doors
Our stylish French and European patio doors create a seamless connection between your indoor and outdoor spaces.

ENERGY STAR® Certified Windows and Doors for Sale in Ajax, ON. Trusted Canadian Quality.
Why Choose Us

Energy Efficent

Licensed & Insured

Custom Service

Warranty

Superior Quality
Our Products Surpass Industry Standards
Our Recent Blogs
Should You Replace Your Windows?
Your home’s windows do more than let in light, they play a critical role in energy efficiency, indoor comfort, curb appeal, and even home security. But if your windows are decades old, or simply outdated, you may be wondering if it is worth the investment to replace...
The Go-To Solution for Windows and Doors in New Construction and Renovations
If you are building a new home or updating an older one anywhere in Toronto or the Greater Toronto Area (GTA), you are going to need windows and doors that work for our Canadian climate, and hold long-term value.That is where vinyl windows and doors come in. They are...
Modern Exterior Doors For Home Protection – Strong Safety Doors
Weather in Canada isn't just unpredictable, it is always extreme and highly deceptive. One day it’s calm and sunny, and the next, you’re battling high winds, snowdrifts, or pouring rain. If your home’s front door is exposed to the elements, it’s not just getting wet -...
FAQ Doors and Windows
What causes condensation on my windows?
The condensation you can’t wipe off (because it is inside the glazing where you can not reach it) is a sign of a faulty seal in the glazing unit. This glazing unit has to be replaced.
The condensation on the surface facing inside your home that you can wipe off is totally different matter. Windows produce condensation whenever the dew point temperature of the air inside your home gets above the temperature of the glass surface. The dew point is proportionate to the relative humidity of the air inside the house. If the relative humidity of the air is above 80% any slightly colder than the air surface will produce condensation just like a mirror in a shower. If the relative humidity of the air is in the optimal range (35-50%) it is normal to see a bit of condensation on the windows only on the coldest days of the year. If you see excessive condensation on your new energy-efficient windows you need to check the air humidity and make sure it goes down to normal by adjusting the humidifier/heater settings and/or improving the ventilation.
Alternatively, the interior glass surface temperature of an energy-efficient window can go below normal if the flow of the warm/dry air contacting the glass is blocked by blinds or shutters – keep those open on cold days to minimize condensation. Higher-rated windows are less prone to produce condensation but even those would eventually go cold and start “sweating” if you restrict the warm air flow to them.
Does Aztech Supply Interior Doors?
No, we supply and install only EXTERIOR front and backyard doors.
What are the advantages of upgrading to energy-efficient doors?
Energy efficient outside doors are designed to minimize heat loss or gain, which can lead to reduced energy consumption and lower utility bills. These doors are always well-insulated, with weatherstripping and advanced glazing options.
Can I use a storm door in front of my entry door?
Storm doors can be used, but SHOULD NOT be used in conjunction with doors painted or stained with dark colors or in areas of high heat or intense sun exposure. We strongly recommend using a vented storm door which allows the trapped heat to escape, prolonging the life and performance of your door. Improper storm door applications can void the warranty on your entry door.
What is insulating glass?
Insulating glass (IG) consists of two or more glass window panes separated by a spacer. A window with insulating glass is commonly known as a double-paned or a triple-paned window depending on how many sheets of glass are used in it..
Insulating glass units (IGUs) for low-rise residential homes are typically manufactured with glass in thicknesses from 3 to 6 mm (1/8″ to 1/4″). Thicker glass is used in commercial, high-rise and special applications. Laminated or tempered glass may also be used as part of the construction.
The space in between the panes provides the bulk of the insulation effect and is usually filled with a mixture of air and argon (noble gas) as it gives better insulation.
How can I improve the security of my doors?
There are several ways to enhance door security, such as installing sturdy deadbolt locks, adding a peephole, using a security bar or chain, and ensuring proper installation and alignment.
When should I replace my windows?
- When your windows have air leaks and drafts.
- When your heating and cooling bills continue to rise.
- When your windows are difficult to open and close.
- When your windows do not provide adequate security for your home and family.
- When your windows allow dust and dirt into your home.
- When your windows don’t block outside noise.
- When your windows appear foggy.
- When your windows are difficult to clean.
- When your windows cost you time and money in maintenance.
Warranty
Limited Lifetime Warranty, Non-prorated, Transferrable Key Warranty Features
When it comes to keeping your home secure and comfortable, the importance of high-quality doors and windows cannot be overstated. That's why it's crucial to invest in products that come with a Limited Lifetime Warranty.
