Family-run since 1978

Vinyl Casement Windows

Clera Windows + Doors is one of Canada’s leading manufacturers and installers of custom windows and doors.

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Vinyl windows

Vinyl Casement Windows

It’s easy to make a case for these vinyl windows. Vinyl casement windows offer the best in ventilation, thanks to their hinged sash that swings outwards like a door. The triple-sealing system makes this style of replacement windows second to none in energy efficiency.

Vinyl Casement Windows - Clera Windows + Doors
Half Opened Vinyl Casement Window - Clera Windows + Doors
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Our vinyl casement windows feature

Fresh contemporary colour, Trillium White Icon

Fresh contemporary colour, Trillium White

Accessory groove designed to provide flush interior Icon

Modern and contemporary design; low profile frames and sashes, large visible glass area, clean, straight, sleek lines. More solar heat gain.

Heavy Duty Window Icon

Increased extrusion wall thicknesses makes for a sturdy, heavy duty window

Field replaceable bulb seals for easy in-home serviceability Icon

Field replaceable bulb seals for easy in-home serviceability

Wet Glazed Icon

Wet-glazed for significantly increased water leakage prevention and structural integrity

Hidden Drainage or Water Management System Icon

Hidden drainage/water management system for a neat, clean external appearance

Hidden Snubber Icon

Hidden snubber

Accessory Groove For Flush Interior Icon

Accessory groove designed to provide flush interior

Pilkington Next Generation Low E Technology Icon

Pilkington next generation low e technology, designed specifically for Canadian climates, is a standard feature

Hardware is AAMA Tested & Certified Icon

Hardware is AAMA tested and certified

Hardware is Endurance Tested By AAMA

Hardware is endurance tested to 8000 cycles under AAMA 904.01 and maximum load tested to 130 pounds under AAMA 904.14

Hardware Has Optimized Gear Ratios Icon

Hardware has optimized gear ratios for ease of operation

Ergonomic Cover & Handle Design Icon

Ergonomic cover and handle design

Field Adjustable Hinges & Cams Icon

Field adjustable hinges and cams

Optional Structural Reinforcement Icon

Optional structural reinforcement available for greater performance and stability

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Window Options

Our vinyl casement windows feature

Our window combination options:

Join casement windows together with other windows to add character to your home’s design. See your Clera Consultant for additional combinations and complete offerings.

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  • casement windows design


  • casement windows design

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Half Opened Vinyl Casement Window - Clera Windows + Doors
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Our vinyl casement windows feature

Lifetime Warranty Information

Our warranty is among the best and most comprehensive in the industry: a no-nonsense, non pro-rated, fully transferrable lifetime warranty on all vinyl casement window hardware, components and glass.

Every customer receives our full written factory lifetime warranty after completion of their installation. Now that’s peace of mind.

No-Cost Replacement Parts

You’ll never have to pay for a new part for your Clera windows.

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Optional Features

Antimicrobial Weatherstripping - Clera Windows + Doors


Clarity windows feature a triple-fin weatherstripping with built-in antimicrobial properties, which inhibits mold, dust, fungi, pollen, and bacteria, while providing continuous antimicrobial protection and improved air quality for the life of your windows.

Flex Screen - Clera Windows + Doors


All the protection of a durable steel screen, but with a 10% larger viewing area compared to standard overlap screens. Easy to install and remove thanks to its flexibility.

Sash Ramps - Clera Windows + Doors


Fingertip operation. Allows for easy operation of the sash when opening and closing windows. The easy-glide technology keeps sliders locked in place, while making operation a breeze.

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Replacement Casement Windows


Clera’s casement windows offer superior style, durability, and energy-efficiency, all in one quality window design. It’s easy to make a case for these vinyl windows. Vinyl casement windows offer the best in ventilation, thanks to their hinged sash that swings outwards like a door. The triple-sealing system makes this style of window second to none in energy efficiency. Casement windows are a popular choice for practically any room in the home, especially in living areas that need a daily dose of natural light and fresh air.. When closed, these windows have 3 compression seals that create an airtight seal and minimal heat loss. Unlike other replacement window types, casement windows will promote the direct flow of air into the home, maximizing ventilation. Conversely, when casement windows are closed, they tend to be air tight, thus being one of the most efficient window types on the market, aside from fixed windows. When choosing replacement windows for your home, the most important thing to consider besides cost, quality, and style, should be versatility.

Does your replacement window provide you with options? And if so, how will these options benefit you in the long-term? Clera’s replacement windows offer its customers long-term benefits by contemplating the need for home and business owners to have minimal maintenance requirements which will promote the longevity of their brand new windows.

Why Choose Casement Windows - Clera Windows + Doors
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Why Choose Clera’s Casement Windows

Why Choose Casement Windows - Clera Windows + Doors

You would choose Clera’s casement windows if you are seeking maximum energy efficiency and a clear unobstructed view for your home or business windows. Since casement vinyl window come in endless style options, you are able to achieve the look you desire whether you’re renovating a historical home or installing windows on a brand new home. Casement windows can be installed in virtually every room of the home without experiencing any concerns with functionality. The crank handle at the base of the window makes it incredibly easy to operate even if the window is across a countertop or sink such as, in a kitchen. Also, our casement windows come standard with fold-down handles which collapse to get out of the way of your draperies. The locking capabilities on Clera’s casement windows are also what makes them the number one choice for families. Although all window types have their own set of advantages in terms of security, casement windows offer the best in security features such as, a built-in ‘snubber’ that keeps the hinge side tight and multipoint hardware, which secures the locking side of the window.

The ultimate in enhanced security. Whenever you’re shopping for new replacement windows, there’s no harm in getting helpful advice from the professionals. Get connected with a specialist at Clera Windows and Doors. We can help you to make the best decision about aesthetics and energy efficiency when it comes to your window replacement project. As a family run business since 1978, you can be assured that we understand and appreciate the importance of any home renovation project to your family. We’re in the business of providing comfort and security for households across Canada, and we couldn’t be more grateful for all the homes and families that have already entrusted us with such an important decision to improve their home’s functionality and security.

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Read what clients have to say about Clera Windows

“We recently had our sliding patio doors replaced with garden doors with interior blinds. We have received so many compliments on our doors. Mike and his crew (Mike and Anthony) are very friendly and professional. It was a pleasure having them in our home. The installation was seamless and clean. They already have someone who will be ordering from them, after seeing these doors at our place. I’m sure there will be more to come. Thanks guys!”

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Maria Novielli

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“I have nothing but good things to say about the services I have received from Clera. About 4 years ago I purchased a new front door from Clera. The salesperson was knowledgeable and understood what I was looking for. When it came time for installation, the installers were professional and friendly. They discovered a small dent in the door at the bottom and told me that they had ordered a new door . This was done before my final inspection. Based on this experience, I had new windows replaced in a rental home in Kingston. This salesperson was also very knowledgeable and took the time to help us. He even inspected other windows and told us which ones did not need to be replaced. More recently, I have purchased two new windows for my own home in Ottawa and have been equally pleased with the service, quality of workmanship and the windows themselves. I always recommend Clera to anyone that I know who are looking for windows or doors.”

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Tammy Yazbeck

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“Excellent! We have loved our dealings with Clera. Rod was amazing in listening and understanding the look we were trying to achieve and then suggesting products with the appropriate features. The windows were delivered within the expected delivery time frame. The installation was done quickly and the crew was very professional and accommodating. The windows we had install have made the house much brighter. The doors we had install feel very solid, despite both presently unique challenges. Clera’s quote wasn’t the cheapest quote we had but their price was certainly competitive and the results have been well worth the money.”

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Eric Tang

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