Modern, Energy Star certified windows and doors
Upgrade your home's energy efficiency backed by a lifetime warranty.
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No Obligation, Zero Pressure
How old are your current windows and doors?
Are you looking to complete this project in the next 90 days?
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Benefits of working with us
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Get back up to $250 per window
We carry ENERGY STAR® 2021 Most Efficient certified Windows and Doors that qualify for the maximum amount redeemable under the Canada Greener Homes Grant
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Financing Available
We offer a few fast, flexible, and easy ways to pay for your window replacement project. Payment deferral for 3, 6, or 12 months is available. Payments starting at just $39 per month.
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Lifetime warranty
We are confident in the durability of our windows and doors! Any components that fail for any reason, will be promptly replaced or repaired.
CANADA GREENER HOMES GRANT
Optima Windows and Doors is an approved installer for The Greener Homes Grant. With our new Energy Star 2026 certified windows and doors, you can forget about window drafts, heat loss, and mold.
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Upon conducting initial “market research” (we checked a few local businesses) in summer 2025, we chose “Optima Windows and Doors” for the best value and care. Chris Z. spent a few hours in our house explaining every little detail about the work to be done, finance options, answered all our questions, and was available on phone.
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We heard about Optima through our neighbor across the park. They had a sign up, we saw the work that was done, and we were really happy with it and that’s when we called. Meeting Chris, the salesperson, and getting all the information — we were really satisfied with what he was able to present to us. We love the style of the windows, we love the color.
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We’re at 10 years old builders’ windows and had all kinds of issues with them. Hired Optima Windows and Doors to replace just two windows and were amazed by the difference between the old ones and the ones that they installed. We have decided to replace the rest of the windows in our house with Optima. Great price, great quality, great team!
OUR ADVANTAGE
Patented window technology protects your home in any weather and is guaranteed and with a Lifetime Warranty.
replacement
≈ 8 hours
The new generation of window glass and construction make window replacement an essential update for many households. This clever and affordable upgrade increases home value, plus replacing your windows and doors with New Energy Efficient models make a HUGE improvement to your home’s comfort by eliminating drafts, leeks, window cloudiness and mold. Manufactured in here at home in Toronto, Ontario, Optima‘s Whole-Home Window Replacement installs in under 8 hours*!
NOW, THAT'S BETTER! 🍃
We carefully remove your old windows and doors and take them away to a recycling facility. Then we install your new windows and doors, caulk the exterior and install trim on the interior. Your new windows and doors are backed by a LifeTime Warranty.
When and why replace windows and doors?
If you are experiencing one or more of the following problems, it's time to replace or repair your windows to reduce your energy costs
Cloudiness, mold
High heat cost
Warping, rotting frames
Peeling paint
SUPERIOR TECHNOLOGY
Replacing windows and doors with new energy-efficient models will save up to 50% on heating and cooling costs, and make your home feel more comfortable
Low-E Glass
Reflects solar rays in the summer and retains infrared rays in the winter, helping to heat your home. Optima Windows & Doors currently uses a 5th generation Low-E product.
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Premium Vinyl
We build heavy-duty windows using premium, surgical-grade vinyl with no fillers or re-grind. This guarantees durability without warping, fading, or loss of performance.
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Advanced Spacer System
Any use of aluminum in window construction results in heat loss. To avoid this, Optima does not use any type of metal in its spacer systems.
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Any types of windows
Replacing windows and doors with new energy-efficient models will save up to 50% on heating and cooling costs, and make your home feel
customer reviews
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“We heard about Optima through our neighbor across the park. They had a sign up, we saw the work that was done, and we were really happy with it and that’s when we called. Meeting Chris, the salesperson, and getting all the information, - we were really satisfied with what he was able to present to us. We love the style of the windows, we love the color and we love how quiet it is inside. And the heat… we’ve noticed that we don’t need to have our furnace turned up high to maintain the house temperature.“
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"I received 3 quotes and awarded Optima Windows to replace all windows in our home. They were competitively priced and accommodating to ALL our custom requests."
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“We have received several quotes and spent a lot of time entertaining different company representatives. We found that Optima has the highest quality windows for the best value. After the products were installed we couldn’t be any happier. If you are in the market for high-quality windows and doors, don’t look any further than Optima windows and doors. My son is replacing his windows with them now.”