Custom crafted windows and doors manufactured to exacting standards exclusively for your home

Centennial specializes in custom replacement windows and doors for the residential renovation market. Every single Centennial window and entrance door system is custom crafted in our own manufacturing plant in London, Ontario, and sold directly to the consumer fully installed in their home. We do not sell our products to contractors for installation and have therefore been able to focus all of our years of experience actually installing windows and doors into developing and manufacturing the highest, most exacting product standards in the industry. And because each of our products is custom manufactured and installed by Centennial to uniquely suit each specific home, they carry an industry leading, no fine print, 100% warranty for as long as you own your home.

Why Custom Replacement Windows?

We refer to Centennial's windows and doors as Custom Replacement because we deal exclusively with homeowners who want to replace windows or doors in an existing opening. We don't work with homebuilders or developers who purchase off the shelf windows in standard sizes for new construction.

We never stock windows or doors, every Centennial custom replacement window and door is individually measured, ordered, custom crafted and installed to the exact specifications of each unique opening in your home.

What’s wrong with standard sized windows?

A house is just like a living thing, and even after a few years it shifts, sags, twists and expands and so do the window openings of your home. In an older home, sometimes the measurements of the actual window opening can be inches off square. To fit an off the shelf window into this opening would take a great deal of trimming and filling on both the inside and outside of your home, making the final job look like an addition and in many cases, this type of installation would also void the manufacturer’s warranty on the window. Sadly, even new homes often need new windows within a few years as a result of low quality products or poor installation by the builder. But a "standard size" from just five years ago may well be very different from the size of today's "lumber yard" choices. More importantly, installing windows and doors that are not made to fit your home can cause them to lose the majority of any added energy efficiency, strength, or durability that would have been available if they had been custom manufactured to fit.