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The Best Windows & Doors in Oshawa

Mike Morris

Our new manager Mike Morris

If you are looking to replace old or dated windows and doors then look no further than Clera, your quality family business in Oshawa with decades of experience and know-how. There isn’t much Clera don’t know about making windows and doors and we have plenty of satisfied customers in Oshawa.

Clera’s is a family business built on hard work and quality merchandise and we have established an enviable reputation in this field for the style and durability of our products. We make our replacement windows and doors ourselves in our own factory in Ontario so we really can guarantee the quality, giving you the style and craftsmanship which the name Clera has come to stand for. Take a look around you in Oshawa, there are plenty of happy customers showcasing our fabulous products.

If you live in Oshawa and need new windows or doors for your home or office, your best choice for great quality and attentive service is Clera Windows. Manufacturing a huge variety of energy efficient windows and doors in Oshawa, we can even custom design the perfect solution for your needs. Reduce both your monthly heating and cooling costs, improve the aesthetics of your home, and increase value and curb appeal with our exceptional designs.

As the automotive capital of the country, it’s important for the residents and business owners of Oshawa to do their part in protecting the environment and one of the easiest ways to do that is to choose EnergyStar certified windows and doors in Oshawa for your home or office.

Because we do not buy in stock at Clera, we can literally make whatever you want. We can also guarantee the quality as we control every step of the production process. Rely on our craftsmanship whilst enjoying the luxury of styling your own design and bring your home to life. You will have to look twice at our prices because they are so competitive but this is because we don’t need to pass on any supplier costs to you the customer. Relax in the warm glow of a lifetime warranty for your replacement windows and doors in Oshawa.

Oshawa’s Leading Replacement Windows & Doors

Found the right replacement doors and windows but not in the size that you want? Sourced the perfect style but can’t get the fit for your home? Why not consider made to measure joinery, it is not nearly as expensive as you might think with Clera. Let us help you find the right style with the benefit of our expertise and experience. Everything is handmade and finished in our factory and fitted by our team of professional installers. Clera can bring to life the look that you want for your Oshawa home.

Longevity is a big concern for our customers particularly with the winter weather these doors and windows in Oshawa have to withstand. Specially engineered color retention means your windows and doors will never look weathered and they are so easy to keep clean making your life easier. Just the perfect fit for your home, our installers will ensure you stay warm and cozy whilst shaving dollars off your energy bills.

Clera is renowned for its security with quality windows and door locks to keep you safe and secure without compromising on design and style. We also offer a special glass to minimize noise if you live in a particularly noisy neighborhood or one where there is a lot of traffic.
Once you have chosen the style you want, select your glass, grills, and color from our comprehensive portfolio. Stylistically we can produce almost any design of windows in Oshawa, whatever your preference.

At Clera Windows & Doors Oshawa, we manufacture and install just about any style of window you can think of from awnings and casements to single or double hung or sliders, you won’t find a bigger selection of styles, colors, and designs anywhere. And if you can’t find what you are looking for, our factories can easily create a unique custom design tailored to your extra needs and desires. From size to style, we’ll tailor any window to suit your space! Our lifetime warranty and factory-trained expert installation teams make Clera the clear choice for superior windows in Oshawa!

If you are unsure what you would like or which style would suit your home, then why not try out our software design program which you can find on the Clera website. So simple to use, it will allow you to visually see what the different window styles might look like on your home. Take a peek at our great array of doors with masses of different types and styles made from either fiberglass or stainless steel.

Vinyl Windows & Doors

Vinyl is in our experience the best choice for replacement windows and doors in Oshawa. It is lightweight and easy to both fit and operate, it has a superb finish which doesn’t weather and it is incredibly economically priced. Clera knows from years of installing windows and doors that vinyl will continue to deliver month in month out whatever the weather. Vinyl is low maintenance so you won’t have to work hard to keep that ‘new window’ look.

Vinyl scores highly on R-value which to you the customer means it is a great insulator and will help to main a consistently warm environment in your home and save you money to boot. So often, insulation has to be put ahead of design and style but with Clera replacement windows and doors, you can have both. There are plenty of Oshawa homes which feature Clera replacement windows and doors and many happy customers.

All our products are fitted in line with the protocols laid down by the Canadian Standards Association. Clera window and doors tick every box, protecting your bank balance, stylishly standing out from the crowd whilst all the while quietly getting on with the job of keeping your home warm and draught free.

When your home or business needs a new door, it can be a difficult decision. With so many options on the market, where do you start? For many reasons, starting at Clera Windows and Doors has proved to be the best choice for residents of Oshawa! Our expert staff can help you find just the right product to match your décor, keep your property secure, and lower heating and cooling costs. Only the very best products ever leave our factory floor, so you can be sure your new door is of the highest possible quality.

Serving Oshawa For Over 40 Years

Clera has a legacy of satisfied customers in Oshawa, we have been a key member of the home improvement sector in Oshawa for nearly forty years. That’s because our formula is just unbeatable – your design choice matched with our experience and professionalism and installed by a crack team of fitters.

We still maintain the same ethos that we did when we got started in 1978. And that is to produce the best quality goods at a fair price and provide the ultimate in service to you the customer. Check out your local Clera outlet in Oshawa, we deliver and install anywhere.
We know a thing or two about Canadian winters and all over town, there are cozy homes snug and secure behind their Clera replacement windows and doors. Our quality is assured through rigorous testing of every product before it is allowed to leave the factory. As well as Clera’s lifetime warranty, all our replacement doors and windows are all Energy Star Certified.

Meet The Team At Clera Windows & Doors Oshawa

Clera’s statement is clear, quality items with no strings attached, let our satisfied customers convince you. Keep your home snug and warm with Clera happy in the knowledge that you are helping the planet and your bank balance all at the same time.

Get in touch for a free quote and check out our amazing prices. Contact us today and let our helpful team  guide you on styling and design. See for yourselves the quality of what we produce and let Clera transform your home.

Clera Windows + Doors


Toll Free: 1-888-738-0738
Phone: 905-738-1870
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