Certified Windows & Doors-The Highest Rated and Most Reviewed Window Replacement Company-Rated By You

Certified Windows & Doors

Vinyl Replacement Window Experts

Certified – Windows & Doors Done Right!

At Certified Windows & Doors, we prescribe to your wants and needs, not our own. It’s with this knowledge that we’ve designed your window and door buying experience. We know you truly desire four things. First, you want to know you are working with a great company. Your research/homework will reveal that we have more reviews than all of our southwestern Ontario competitors combined! Second, be so informed, you know you’re getting a great product. Our Professional sales counselors are there to inform and empower you, not pressure you. Third, along with your great product, you want a great warranty. Not one single competitor can match our no fine print, unlimited, fully transferable lifetime warranty.  And lastly, but certainly not least, you want to know you’re getting a fair price for your purchase. We do not price gouge, so you will never be overcharged! We will not work with cheap products, so you will only pay for quality products that add value to your home for years.  We’ve done our homework, and, if you do yours, we’re confident you will choose Certified Windows & Doors!

For more than a quarter of a century, we’ve offered the latest advances in Energy Star products along with expert installation.  We’ve been family owned and operated since our inception in 1993, and we’ve been a grass roots, community and referral based home improvement company for all of those years.  You can clarify our claims yourself by reviewing our authentic client reviews and our impeccable BBB A+ rating, making Certified Windows and Doors the home owner’s choice in Windsor, Lasalle, Amherstburg, Tecumseh, Lakeshore, Essex, Harrow, Kingsville, Leamington, Wheatley, Tilbury, Chatham, Sarnia, and London, Ontario.

Our people are patiently and wisely chosen. They are considered to be second to none by the industry’s experts. Each member has a combination of extensive industry knowledge, skilled lifetime experience, and, is chosen specifically to keep attuned to your goals, not their own. Our products are attested to by our unique and exclusive relationship with Window City, Canada’s largest and most popular window manufacturer. We go so far as to guarantee your new windows and doors against accidentally broken glass and ripped screens for life.  It doesn’t take long to find out that Certified Windows & Doors truly cares about your Window & Door project.

We also know you will often seek out advice from several trusted resources before you make a decision on which company you’ll be working with. You’re going to ask family and friends, do research online and check in with local resources, like the BBB, Facebook, google and the like. Once again, you’ll find that our clients have rated us above our competitors and more often than all of our competitors combined! So, go ahead and do your homework! We’re confident what you’ll find!

At Certified Windows & Doors, our goal is to combine quality products with expert installation, then add a friendly long term experience to exceed our customers expectations.

The Energy Star™ program was developed by the U.S. Department of Energy and the U.S. Environmental Protection Agency to help identify energy-efficient choices for your home. The Energy Star™ seal is only granted to products that demonstrate significant reduction in energy consumption in the home. The majority of Window City windows and doors meet or exceed U.S. and Canadian regulations to be considered Energy Star™ compliant. Window City is also an Energy Star™ Partner

EXPLORE OUR MOST POPULAR COLLECTIONS

Heritage Collection

Available in Awning, Casement, Fixed, Hung and Slider Windows. This window has the classic contours of a handcrafted window. Along with the performance and durability of vinyl.

Heritage Plus

Available in Awning, Casement, Fixed, Hung and Slider Windows. High-Density Expanded Polystyrene Foam is inserted into the profile cavities of the Heritage Plus.

Heritage Maximum

Available in Awning, Casement, Fixed, Hung and Slider Windows. The slimmest profile in the industry today. It has 40% less frame obstruction creating a larger viewing area in any opening.

Classic Collection

Available in Awning, Casement, Fixed, Hung and Slider Windows. Our 3 1/4″ fusion-welded frame and sash offer superior strength. Standard is 3/4″ double strength glass, comes with the super spacer.

TALK WITH ONE OF OUR PROFESSIONALS

4 Signs that tell you your windows and doors need to be replaced

– When you experience a drafty feeling through your windows


– When you see moisture stains


– When you see black mold


-When your windows are hard to open or close.


Our products are 100% made in Canada


Our products are 86% made in Ontario


Our products rank highest in efficiency per Energy Star and Window City


Our warranty ranks highest among all our peers



Siding and Window Dealers Association of Canada sets tough standards that we, as members,  must live up to. When you work with a registered SAWDAC company, you’re choosing quality, professionalism and guaranteed workmanship!

Before you sign, be sure to ask,

“Are you a member of SAWDAC?”

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