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The Best Windows & Doors in Whitby

Mike Morris

Our new manager Mike Morris

We believe that Clera offers the best doors and windows in Whitby and have been doing so for nearly forty years. This is not just about the quality of the replacement windows and doors but also the service we offer to our customers. Our reputation has been founded on attention to detail and listening to our customers in Whitby and beyond. You might think made to measure is too expensive but look again, Clera can offer unbeatable value to go alongside our top quality merchandise and friendly professional customer service.

Clera Windows and Doors provide the highest quality products and installation to homeowners in Whitby and surrounding areas. Our industry experience has built trust with the residents of Whitby, and our superior replacement windows and doors offer a variety of benefits to suit your needs. Founded in 1978, Clera Windows and Doors has prided itself on the values of a family-run business. We value trust, quality and excellence in our work and we’re dedicated to providing residents of Whitby with the best quality and service for their window and door replacements.

All our replacement windows and doors in Whitby are made in Ontario at Clera’s own factory. Enjoy styling your own look with design and fit that only comes with made to measure. Clera controls the whole process from the drawing board to installation and because we don’t sell anyone else’s products, we can keep our costs competitive. We have so much faith in our joinery that every unit we install comes with a guarantee for life and that includes both repairs and parts.

Whitby’s Leading Replacement Windows & Doors

With bespoke, tailor-made furniture you can ensure the very best fit and exactly what you want in terms of style. Our experienced team can gently steer you along the path with all the information and advice you need. Over forty years, Clera has built up an impressive catalogue of products. Take a look at the properties of all our satisfied customers in Whitby, no two installations are the same. Clera’s range has depth and real variety.

Replacement windows and doors in Whitby are a big decision but have confidence in Clera to transform your home. Watch your property value rise and your heating bills tumble once Clera has worked their magic. A great fit and the most modern of low maintenance finishes mean that your new windows and doors will look as good as new years after installation. Enjoy warmth, security and just a little more peace and quiet with Clera.

Choose from a variety of glass types and grilles and pick a colour from Clera’s extensive menu. If you can’t find what you want then we can personalise a colour scheme to fit in with your decor. All of Clera’s paints have fade-resistant technology so no matter what the Canadian weather throws at them, they will retain their colour and sheen.

Our reputation in Whitby was built on the satisfaction of our customers. Clera Windows and Doors is an industry leader in Canada, and we provide the highest-quality manufacturing and installation. With almost 40 years of experience, we are confident that our products and workmanship are unparalleled. As well, our installers are trained in our own program which is overseen by the Canadian Standards Association.

We have over 40 Ontario locations, and we serve the individual needs of each homeowner. Whitby homes have experienced the many benefits our products offer, as well as enhanced curb appeal. We work with you to find the best fit for your home.

Whether you’re looking to completely renovate your home, or provide some smaller-scale updates, we provide you with the highest-quality windows and doors to suit your specifications. Our products are beautifully crafted, enduring and versatile and we are among Canada’s premier manufacturers and installers of replacement vinyl windows and doors in Whitby.

Clera’s website has a great new feature which is a design tool to allow you to preview how some of the styles and colours might look on your home. Pick your glass, grille and colour and then let the computer do the rest. Browse our range of doors, a door for all seasons and all made from tough stainless steel or fibreglass.

Vinyl Windows & Doors

Clera has concluded that vinyl is the very best choice for replacement windows and doors because it has so many advantages over other options such as wood. Vinyl is incredibly tough and durable and this means as well as keeping you toasty warm in winter, it also withstands the ravages of the weather. Despite this resilience, vinyl is incredibly competitively priced.

Vinyl is lightweight so no-one is going to have to struggle with heavy, cumbersome doors and window units in Whitby. The finish is ridiculously tough and it just doesn’t’ stop looking good regardless of what you throw at it. This means low maintenance for you too. Vinyl has a great R-value which reflects its ability to insulate. Loved by environmentalists, you will love it too as you watch your heating bills fall. Vinyl comes in a wide range of widths so you won’t be left out in the cold if your measurements are outside the norm. Colour choices are epic.

Clera employs its own team of fitters to install your windows and doors. Trained the Clera way, they are fully in tune with our core values and each unit is installed in line with the guidelines set out by the Canadian Standards Association. Check back with some of our satisfied customers and look at our handiwork at properties around Whitby. Ramp up the value of your home, revitalise its look and do your bit for both the environment and your bank account, all at the same time.

Our windows are engineered to be energy efficient, saving you money on heating and cooling costs for the changing Whitby seasons. Additionally, our windows in Whitby are easy to clean and provide increased security and privacy, and block out any unwanted outside noise.

Our selection of glass makes it easy to customize your replacement windows. We offer speciality glass, different glazes and a variety of grill options to suit your style. We provide customizable colour options and our advanced colour retention technology ensure your window’s colour never fades. Also, we offer a lifetime warranty on all of our vinyl window hardware, components and glass, so you can have peace of mind knowing your windows are of the highest-quality.

Serving Whitby For Over 40 Years

Clera has worked hard to earn such an enviable reputation in Whitby and don’t intend losing it any day soon. Our trade is to supply quality made to measure replacement windows and doors whilst offering the best customer service.

Enjoy the Clera heritage, you are in the best hands possible. Our family business thrives on the values in place when it first opened all those years ago in 1978 – hard work, integrity and pride in making the best products for our customers. A big part of our commitment is offering our products at a fair price. You won’t find any better in Whitby.

You might wonder how your new windows and doors are going to withstand the might of a Canadian winter. That is naturally on everyone’s mind as living in Whitby, you know how harsh the weather can be. All our units are inspected before they leave the factory in Ontario. Stay warm secure in the knowledge that your new windows and doors will look just as good when winter is over as when it began. Everything Clera produces is Energy Star Certified. Join Clera in the battle against climate change and do your bit for the environment.

Meet The Team At Clera Windows & Doors Whitby

Clera is the Number One choice for Whitby residents in the know. Try and find a company who can match our longevity and track record and, with so many happy customers. Remember, everything we sell is made to order in our own factory to offer you the most unbeatable quality and price. The evidence in Whitby is everywhere.

Take advantage of our no-obligation free estimate or why not stroll along to the Clera store in Whitby and see for yourself what we can offer you. Our experienced service team will be delighted to show you our range and answer your questions.

Enter or exit your home in style with our door collections in Whitby. We offer many door styles including classic, design, prestige, fibreglass, sliding and garden, storm and shaker. Whether you’re looking for something classic, modern or simple, we have the best selection of doors for you to choose from. Our decorative options and colours ensure you can find a style that suits you and your home.

Our doors are Energy Star® approved and are built to withstand any weather that hits Whitby and surrounding areas. We’re confident our steel and fibreglass doors will be the best fit for your home.

Residents of Whitby turn to Clera Windows and Doors for their homes. If you’re looking for updated windows and doors for your Whitby home, we offer an entirely free estimate for your next project. Visit Clera Windows and Doors at our nearest Whitby location:

Clera Windows + Doors


Toll Free: 1-888-738-0738
Phone: 1-844-738-7936
Fax: 905-738-0586

Big Clera Sale 45th Anniversary Sale 45% OFF All Window And Door Installations + No Interest No Payment Till Jan 2025

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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!

Reviewer: Maria Novielli

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5 out of 5 stars

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.

Reviewer: Tammy Yazbeck

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5 out of 5 stars

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.

Reviewer: Eric Tang

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5 out of 5 stars

Read what clients have to say about Clera Windows