Window Glass Replacement & Repair for brands like Window Nation


Mon. to Fri. 8–5 • Sat. 9–4 • Sun. Closed
8–855 Industrial Ave. Ottawa ON K1G 4L4

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Centennial Glass offers repair services for 99% of window brands, including Window Nation, particularly for those beyond their warranty period. 

While we are not a dealer or installer of new Window Nation windows, nor do we handle repairs or sales of specific Window Nation parts, we are fully equipped to provide comprehensive installation of a new “replacement unit.” This service comes with complete warranties, making it an ideal solution if your existing windows require the replacement of the interior glass or thermopane due to any kind of failure.

For more than 55 years, Centennial Glass has been a revered leader in exceptional window installation and replacement services in Ottawa, Ontario. With a wealth of experience and an unwavering dedication to quality, we have become the benchmark for glass, glazing, and window replacement in the region. Our window replacement/repair services, available throughout the year, include sealed unit replacement, thermopane replacement, window crank and hardware replacement, and screen replacement, particularly for brands like Window Nation, even post-warranty. Catering to both residential and commercial clients, our team is committed to ensuring that every project embodies our dedication to excellence and customer satisfaction. (For unmatched expertise in Ottawa’s glass industry, your choice is Centennial Glass & Window).

Types of Window Replacement/Repair Services We Provide

New Glass, Thermopane or Sealed Unit Replacement

Damaged windows are a frequent occurrence. Our process involves removing the old, damaged, or non-functioning glass, then precisely measuring the space to ensure a perfect match for your new sealed unit. We expertly install the new unit, securely seal it, and thoroughly clean it for you. Additionally, we provide extensive warranties for both the replacement glass and our installation services, ensuring your peace of mind.

Window Crank Replacement

The crank mechanism is essential for window operation. If it’s malfunctioning, your window may stick or fail to open correctly. You can visit our store to find and replace the necessary parts from our range of universal hardware options. Our customer service teams are on hand to offer professional advice; feel free to send us a photo of the hardware you need to replace for more tailored assistance. If needed, we can also schedule a service with our professional installation teams to ensure your windows are in optimal working condition. Remember, having the right hardware is key to ensuring your windows function properly.

Foggy Window Replacement

We specialize in replacing foggy windows to ensure that the panes are properly insulated. Defogging a window unit, which typically involves releasing the argon gas between the panes, isn’t a lasting solution, and drilling holes in the glass only provides temporary relief. As such, we advise against the practice of defogging. Instead, Centennial Glass offers the installation of new sealed units within your existing window frames. This approach not only maintains the aesthetic of your current windows but also comes with full and complete warranties, enhancing the longevity of your window frames for many additional years.

Screen Replacement

If you’re dealing with screens that are ripped, torn, or otherwise damaged, Centennial Glass is here to assist. Our showroom and cutting facility offer walk-in services where we can professionally replace most types of damaged screens, with a variety of screen types and screen bar designs. For optimal service, we suggest bringing your damaged screens to our shop. Alternatively, you can use our online screen-builder webform to submit photos, measurements, and specific details, enabling us to determine the best service for your screen replacement needs. If needed, we also provide onsite services tailored to your requirements. Our customer service team is always available to answer your questions, whether you reach out by phone, visit us in person, or contact us online. 

About Window Nation Windows

Since its founding, Window Nation has established itself in the window sector. The company has been offering homeowners top-notch replacement windows and doors for over fifteen years. Window Nation’s first showroom, launched in Maryland in 2006, marked the start of its expansion. Window Nation’s commitment to quality and unmatched service continues to fortify its legacy in the window industry.

 Our Window Nation window warranty has expired, and our glass units need replacing… Now what?

No need to worry. Contact Centennial Glass today for comprehensive window glass replacement services, accompanied by product and service warranties designed to extend the life of your home’s windows. Serving with pride in Ottawa, Nepean, Kanata, Orleans, Stittsville, and surrounding areas, we are Centennial Glass and Window – your trusted specialists in glass and window replacements. We’re dedicated to enhancing your home, ensuring your windows deliver optimal performance for many years ahea

Call Centennial Anytime Day or Night

Contact Centennial anytime at 613-738-9500 to mobilize our fast-response emergency repair team.

Need New Windows & Doors? .. We do that, too!

If you’re in the market for both new and replacement windows, whether for a single window or an entire home, Centennial Glass and Window are here to help. Our skilled team is equipped to offer a replacement plan tailored to your specific home and needs, providing a variety of options that fit within your budget. We pride ourselves on a long-term commitment to customer service, offering you choices without any sales pressure. You can count on us to work at your pace, handling installations one at a time or according to your schedule. 


Here are the window brands that Centennial repairs: