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Clera Windows + Doors proudly provides window and door replacement in Whitby and the surrounding Durham Region. These areas include Brooklin, Williamsburg, Port Whitby, Blue Grass Meadows, and Taunton North. Our local team is also available across Oshawa, Ajax, and Pickering.
Contact your local Clera representative for a free consultation on fully customized Whitby windows and doors.
Our local representative has been serving Weston Downs, Woodbridge and surrounding areas for over 5 years!
Discover how affordable your new windows and doors can be with our latest promotions.
Whitby is one of Durham Region's fastest-growing communities, with housing ranging from heritage homes and bungalows in Downtown Whitby and Pringle Creek to newer detached homes and townhouses in Williamsburg and Brooklin. Windows and doors can suffer from Ontario's freeze-thaw cycles, lake-effect winds, and long, cold winters. When old windows and doors start to fail, your utility bills climb and comfort drops.
At Clera Windows + Doors, we manufacture everything right here in Ontario and build specifically for the Canadian climate. We take care of the entire process, from your initial free in-home consultation to the final installation. By eliminating the middleman, we can provide factory-direct pricing, faster turnaround times, and a single team fully accountable for the quality of your project from start to finish.
Every installation comes backed by a non-prorated, fully transferable lifetime warranty, and we offer flexible financing so Whitby homeowners can move forward with their window replacement project without delay.
If you need to replace windows that are drafty or require a steel front door replacement to enhance home security, Clera offers ENERGY STAR certified options to suit every home and budget in Whitby. Choose from a vast selection of new windows and doors, all fully customizable to match your home's aesthetic.
Replacement windows in every style, including casement windows, slider, bay/bow, and more.
Designed for maximum energy efficiency year-round.
Shop New Windows
Steel and fibreglass entry doors built to keep your home safe and temperature-regulated. Available in a wide range of door styles and finishes.
Shop Exterior Doors
Garden doors and sliding patio doors Whitby homeowners love for bringing the outdoors in.
Create a seamless transition between your living spaces today.
Shop Patio Doors
With over 45 years of experience, Clera Windows + Doors is one of Ontario's most awarded window and door companies. Because we handle the entire process, designing, manufacturing, and installing every product ourselves, we can guarantee strict quality control and structural integrity while passing the savings directly to you.
Our local sales reps and installation crew are fully licensed and insured, ready to guide you through every detail of your home improvement project. When working with Clera, our customers benefit from a single point of contact, a transparent installation process, and a lifetime workmanship warranty that backs all of our Whitby windows and doors. We promise a straightforward experience every time, with no pressure, no hidden costs, and no subcontractors.
With some of the highest ratings for customer satisfaction, it's clear why Clera is Ontario's most awarded window company!
9.2/10
on HomeStars
16x Homestars Winner
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Clera makes door and window replacement in Whitby simple from the first call to the final walkthrough. Custom-designed and built with precision. Upgrade windows and doors with Clera today.
Window installation cost in Whitby varies depending on the style, glass package, and number of windows. Slider and hung windows are typically the most affordable, ranging between $700 and $3,000 per unit installed. Choosing different window styles will impact the total cost, such as picture windows and bay/bow windows, which sit at a higher price point.
Clera manufactures its own products, so you are not paying a retailer's markup on top of a supplier's price to replace windows. During your initial consultation, our experienced team will assess your home and provide a transparent quote specific to your requirements.
Door installation costs in Whitby depend on the door type, size, and configuration, with standard front door installation starting around $1,500. Larger openings, French door configurations, and added features like sidelights or transoms will increase the final cost, as will a triple-pane glass upgrade.
Labour is included in Clera's quoted price, and there are no hidden costs. Reach out for a free estimate, and we will walk you through everything before your new door project begins.
The best window replacement Whitby homeowners can rely on starts with the materials. At Clera, we use 100% pure virgin uPVC free from lead, low Emissivity glass, 97% Argon filled, and coupled with Hydraglass 50™ warm edge technology.
We’re committed to ensuring your Whitby windows perform in Ontario’s extreme climate. For our most advanced windows yet, check out our Brilliance line.
Invest in high-quality window and door replacement Whitby residents trust when you work with Clera Windows + Doors. As a family-owned company, we are deeply committed to ensuring you’re completely satisfied with your new windows/doors and the service we provide.
Discover the difference Canadian-crafted, energy-efficient windows and doors can make for your Whitby home. Contact your local Clera representative and take the first step toward improving your comfort, enhancing curb appeal, and saving on energy costs for years to come.
