Windows and Doors Whitby, 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 WHITBY
Looking for doors replacement in Whitby, ON that adds style, security, and energy efficiency to your home? At Aztech Doors & Windows, we supply and install high-quality entry doors, garden patio doors, and sliding doors designed for long-lasting durability. Choose from insulated steel or fiberglass options in smooth or woodgrain textures for a low-maintenance yet elegant appeal. Whether you are after a sleek modern upgrade or a timeless classic, our expert windows and doors replacement team ensures your project is seamless, stress-free, and customized to match your home’s unique style.
Windows Replacement Whitby
When it comes to windows replacement in Whitby, homeowners trust us for professional window service and premium products. Our energy efficient windows reduce drafts, cut utility bills, and enhance your home’s curb appeal. From casement and double hung to bay and bow styles, we offer a full range of options. Never compromise on window quality, it is the key to comfort, energy savings, and lasting value. If you are searching for windows replacement Whitby, AZTech is the team to call.
Windows and Doors Installation in Whitby
Considering a home renovation in Whitby? Replacing outdated doors and windows is one of the smartest investments you can make, instantly boosting curb appeal, strengthening security, and improving energy efficiency.
At AZTech Doors & Windows, we provide a wide range of stylish, ENERGY STAR® rated windows and durable doors, all professionally installed for a flawless fit that lasts. Our expert team makes every windows and doors replacement project smooth and stress-free, ensuring you enjoy long-term comfort and savings in Whitby. We also replace worn-out frames. Request your free quote today and transform your home with AZTech quality.
Our Doors and Windows Services in Whitby
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ENERGY STAR® Certified Windows and Doors for Sale in Whitby,ON. Trusted Canadian Quality.
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Energy Efficent

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Our Recent Blogs
Canada Greener Homes Loan in the GTA – Eligibility, Process & Real Homeowner Experiences
Switching to energy-efficient windows, doors, and home upgrades can feel overwhelming, not just because of the investment but also due to the maze of rebates, loans, and grants. If you live in the Greater Toronto Area (GTA), you may already have heard about the Canada...
A Window is More Than Just Glass
For most homeowners, windows are windows, they let in light, provide a view of the outside world, and protect us from wind, rain, and snow. But the truth is, not all windows are created equal. If you are planning to replace your windows, you will quickly realize there...
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...
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.










