Most vinyl replacement windows look the same on the outside, but like other products, there are significant quality differences when comparing manufacturers. There is much more technology and testing that goes into each Centennial window than meets the eye.

All of our custom manufactured replacement windows are ENERGY STAR® certified and backed by our No Fine Print Warranty, so your beautiful new windows are guaranteed to last a lifetime.

Types of Windows

Every Centennial replacement window is custom manufactured with the highest quality materials and craftsmanship. Window styles can be combined to create bay, bow, or large feature windows. Choose from 26 standard exterior colours, four interior woodgrain coatings, and a variety of grill patterns.


Double-hung window

Double Hung Windows

This easy-to-clean, classic style allows for open ventilation with almost weightless operation.

Casement window

Casement Windows

This window style suits most areas of the home, letting in lots of natural light while remaining extremely energy efficient.

Side slider window

Side Slider Windows

This lightweight window can be opened from either end and is most popular in bedrooms, bathrooms, and finished basements.

Awning window

Awning Windows

Attractive and contemporary, this easy to use window is perfect above the kitchen sink.

Fixed Picture window

Fixed Picture Windows

This window offers lots of natural light, an unobstructed view, and is the most energy efficient type of window.

Bay window

Bay Windows

Bay windows are popular for their aesthetic appeal. They provide a panoramic view and open up your living area.

End Vent window

End Vent Windows

This window style provides a great view as well as flexible ventilation options.

Bow window

Bow Windows

Bow windows bring a lot of natural light into your home and their curvature makes for an interesting and open living area.


interest for 36 months*

We cannot say enough positive things about the installers. They were professional, neat, thorough, and extremely good at what they do! They worked long days to ensure that the work was completed with the utmost quality. We couldn’t be happier with the results. From the first salesperson we met to the installers, our experience with Centennial was nothing but fantastic! We look forward to enjoying our new windows from the inside and outside for many years to come!
Mike, Donna, & Sam Union, ON


What’s the difference between triple and double pane windows?

Put simply, double pane windows have two pieces of glass and triple pane windows have three. The other difference is which piece of glass (or surface) the low-e coating is on. In Canada, double pane windows should have low-e coating on surface three and surface five for triple pane windows. In both cases, the coating should be on the surface inside the sealed unit and on the piece of glass closest to the inside of your home.

I need to put egress windows in my basement. Is this something that you can do?

Yes! We can install egress windows, however there are a few factors to consider. First, do you need to make the current window openings bigger? If you do and you have a block foundation, we will most likely be able to install egress windows. If you have a poured concrete foundation, you will need to have the openings enlarged before we can provide and install the new, larger windows. When in doubt, book an in-home consultation with us and we’ll make the best recommendation for your specific situation.

I have measurements of the windows and doors I need. Can I just get a price over the phone or if I come to your showroom?

At Centennial, all products are custom manufactured for your home and we always include installation in the price — it’s how we can offer you our lifetime warranty. Because of that, we’re unable to provide pricing without visiting your home to inspect the openings and determine what is involved for installation.

What is an energy audit?

An energy audit is an assessment of your home’s energy needs and efficiency. It answers the questions: where, when, why, and how is energy being used in your home and provides recommendations of the home improvements you can invest in to increase your home’s energy performance.

What happens on installation day?

First, the team leader will spend a few minutes with you to review your order and explain their plan for your installation. While this happens, the other installer will start setting up their tools and supplies. Next, the team will start installing your windows or doors. When they are finished, the windows and doors will be cleaned, any debris and mess will be tidied and packed away into the installation trailer, and you will be shown the proper operation of your new windows or doors. Each home is unique and every order is different; the length of installation will depend on the number of products that are being installed and any obstacles that arise while we work at your home.

Why do both homeowners need to be available for the in-home consultation?

During the in-home consultation, we will go through several options that will affect the price of your windows and doors. Options could be colour, grill pattern, finishes, hardware, and installation requirements. We recommend that all homeowners be present for the consultation as each may have his or her own preferences and we want to make sure that we are taking the opinions of all decision makers into consideration in order to provide the most accurate pricing possible.

How do I know if you service my area?

Centennial offers in-home consultations across much of Southern Ontario. Take a look at our service areas page here to see general city listings for each of our offices. Alternatively, give us a call at 1-800-265-1913 or submit an appointment request here and we will be happy to answer any questions that you have.

Do you sell skylights?

No. Centennial specializes in replacement vinyl windows as well as steel and fibreglass entry door systems. Unfortunately, Centennial windows are not designed for use as skylights. Skylights have a specific set of certification and installation requirements and, to avoid damage to your home, only products designed and rated for use as skylights should be installed in that application.

Do you sell commercial products for businesses?

Not at this time. Centennial windows and doors are designed and rated for residential applications and our installers are trained to work on residential buildings. If you are unsure if your project is residential or commercial, please give us a call at 1-800-265-1913 and we will be happy to discuss the details of your project and let you know if we will be able to do the work.