The Best Doors & Windows In Kingston

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

The Best Doors & Windows In Kingston

Hans Vanderspank, Our Local Representative - Clera Windows + Doors

Hans Vanderspank

Our local representative has been serving Kingston and surrounding areas for over 30 years!


Contact us for more information and about a free quote!

Contact Us

Our Local Clera Branch Serves Kingston

As the manufacturers and installers of all our windows and doors, we stand behind our work.

Hans Vanderspank, Our Local Representative - Clera Windows + Doors

Hans Vanderspank

Our local representative has been serving Kingston and surrounding areas for over 30 years!


Contact us for more information and about a free quote!

Contact Us

Our Local Clera Branch Serves Kingston

As the manufacturers and installers of all our windows and doors, we stand behind our work.

Greater Kingston Area

Toll Free: 1-888-738-0738

Phone: 905-738-1870

Fax: 905-738-0586

Clera Windows + Doors

Toll Free: 1-905-738-1870
Phone: 1-905-738-1870
Fax: 905-738-0586


Get a Quote
Best Windows And Doors - Clera Windows + Doors

Get over

$325 per Window

in FREE factory upgrades

With our wide range of ENERGY STAR products, you can be sure to save big on your next dream project!

Learn More
Limited Time Offer To Upgrade Your Home - Clera Windows + Doors

The Best Doors & Windows in Kingston

If you live in Kingston and need a new door or window for your home or cottage, come see Clera Windows and Doors: we have what you need. We manufacture a large selection of products and will custom build any vinyl window or door to suit your needs. Clera continues to be a top manufacturer in Ontario and we were recently chosen as company of the year in our product category by

The Limestone City has some of the coldest winters in all of Southern Ontario meaning residents need to outfit their homes with only the best windows and doors. To stay warm and comfortable, contact a Clera associate today.

Contact Us

Clera Windows & Doors business began its journey in 1978 with a focus on quality, safety, and sustainability. Today, we have grown into a leader in the field of luxury window and door industry as we offer exceptional designs, top quality doors and replacement windows in Kingston. Our journey that started 41 years ago has given us experience, and our mission is making your furniture dream to come true.

Clera has custom solutions for satisfying the clients, and we are focused on making superior quality furniture by keeping a customer-oriented approach. By welcoming the design challenges of tomorrow, we are the champions of customized furniture as we innovate continuously. Specializing in custom windows and doors in Kingston, we provide high-quality products at a reasonable price.

Customized Windows & Doors In Alliston - Clera Windows + Doors
Invest In Your Home Today - Clera Windows + Doors

We’re passionate about changing trends and inspiring new modern designs, but we also spend an equal amount of time caring about the big picture as well as the minute details. Our in-house team pushes the limits of what’s possible the designs and styles, and we are proud to say that there are custom solutions which can only be found in Clera windows and doors.

We also offer a lifetime warranty so that you can buy our products with the confidence you deserve to. Our unique lifetime warranty covers all of our vinyl windows, as well as the components and the glass panels. And if there’s any defect in the material you’re not happy with, we’ll repair it for free.


Video Transcript

Hi. My name is Hans Vanderspank and I look after the Kingston region. I’ve been with Clera Windows + Doors for 26 years. It’s a family run business that’s been serving Canadians for over 40 years.

The best part of what I do is getting to see the reaction of home owners when they see their home finished with brand new windows and doors. I really enjoy being part of the team here at Clera because we offer our customers a thorough and free in-home estimate and great deals on their windows. We provide a true lifetime warranty. We support our customers in a way that makes my job easy.

Thank you for considering Clera Windows + Doors for your home. I hope you’ll consider us for your next project.

Why Choose Clera

Why take a chance with other window or door companies that purchase their products from another supplier, only to resell them to you for a higher cost?

Clera Windows + Doors is one of Canada’s largest, oldest, most dependable and reputable vinyl window manufacturers in Ontario. We fully manage and take care of your door and window replacement project from start to finish, ensuring every stage of your window or door project meets our lofty standards of craftsmanship.

Why are we Ontario’s most awarded window and door company?

The Clera Care Guarantee Logo

Over 45 Years of Experience

With over 45 years of experience, we have earned a reputation as one of Canada's leading window and door manufacturers and installers.

Certified Technicians Icon

Certified Technicians

You can trust our team of factory trained technicians to install your new windows perfectly—our A+ BBB rating is no accident!

Location Icon

Serving Ontario With over 40 Branches

We have over 40 branches across Ontario, which means that we're always close by when you need us.

Non-prorated Lifetime Warranty Icon

Non-prorated Lifetime Warranty

Whenever anything goes wrong with your windows, we'll take care of it for you—no questions asked.

Energy Star Icon

ENERGY STAR® Certified

Our hung windows meet Canada's strict energy-efficiency standards. A window from Clera is not only high-quality and durable, but also energy-efficient.

Reasons to Love
our Products

Clera Windows + Doors is a reputable vinyl window manufacturer in Ontario with a history of dependable and high-quality products. Our superior materials and cutting-edge technology ensure durability, energy efficiency, and style. We offer customizable styles and colors, as well as superior security features and noise reduction technology to provide the best possible product attributes for your home.

Our team manages every stage of your replacement project, from start to finish. We work closely with you to understand your specific needs and preferences, and use our extensive experience and knowledge to deliver a solution that exceeds your expectations. Trust Clera Windows + Doors for exceptional service and expertise for your home renovation needs.

Contact Us
Energy Star Icon

Energy Star Approved

Effortless Operation Icon

Modern, Contemporary Design with more glass, and less frame

Better Home Security Icon

Better home security

Noise Reduction Icon

A quieter home; improved noise reduction from the outdoors

View More Icon

View More

No Maintenance Icon

No maintenance: vinyl windows are virtually maintenance-free

Pilkington Low-e Glass Technology Icon

Pilkington Low-E Glass Technology, engineered specifically for Canadian climates

Structural Integrity Icon

Wet-glazed frames and sashes on all windows; the ultimate in protection against water and wind infiltration, with added structural integrity

Improved Ventilation Icon

Triple-fin weatherstripping with built-in anti-microbial properties, meaning no mould and better air quality

Pure Virgin UPVC Icon

100% pure virgin UPVC, providing protection from fading

Exceptional Durability Icon

Stronger hardware and structural integrity thanks to integrating galvanized steel (allows for larger, more spectacular views!)

Kingston’s Leading Replacement Windows and Doors

Swapping old doors and replacing old windows can result in enhanced beauty and even increased levels of comfort in your home. You’d be amazed how much difference windows can make. Clera is committed to ensuring that our replacement windows are a perfect fit for any room, so we offer a plethora of tailor-made designs and provide the best replacement Windows in Kingston.

Our windows and doors are engineered, scientifically researched, and tested to meet our clients’ expectations. Our wide range of products allows our customers to choose from a variety of options hassle-free.

Contact Us
Window & Door Assemblers - Clera Windows + Doors
Best Vinyl‍ End Vent Slider Windows  - Clera Windows + Doors

We offer windows that are impact-resistant, durable, and easy to clean. In addition, our windows are known for providing privacy, security, and significant levels of noise reduction. Thanks to our proud history, today we’re a trusted name for providing products keeping both affordability and quality in mind. You can transform your Kingston home with our exclusive collection of glass, specialty glass, and grill options windows. At Clera Windows & Doors Kingston we offer a large selection of awning, double- or single-hung slider, double- or single-hung tilt, and casement windows in many sizes and colors. Whether you are looking for better energy efficiency, less maintenance, or simply an aesthetic improvement to your Kingston home, consult one of our expert employees for the best replacement windows in Ontario. Manufactured in house with low-E glass, you can’t find a better warranty or a better product on the market today.

Furthermore, replacement Windows in Kingston is made easier with our user-friendly website. Clera’s advanced design tool helps customers to create a virtual look with just a few clicks. Whether you’re straightforward with your taste or of a more flamboyant disposition, our virtual designer will ensure that you’ll find what you love easily.

Apart from windows, we also offer fiberglass and steel doors that are long-lasting. Choose from the wide collection of classic, fiberglass, storm, shaker, and patio doors to finalize the style you desire: you’ll have all the input you’d ever need..

Vinyl Windows & Doors

Clera provides customers only the highest level of service, satisfaction, best pricing, and full guarantee on all products and installations. Among Canada’s top manufacturer and installers of replacement vinyl windows and doors, we offer nothing less than excellence. That’s why material choice is so important for us, and there are a few reasons we’ve opted for vinyl.

Firstly, vinyl windows are durable and strong. With high-quality vinyl windows, customers don’t have to worry about cracking, warping, peeling, and fading.

These modern vinyl windows are energy efficient and provide superior thermal protection than other materials. Besides, with basic maintenance, these light-weight vinyl windows will last for decades and save you money.

Vinyl Windows & Doors - Clera Windows + Doors
Bay & Bow Windows - Clera Windows + Doors

Among several other reasons, we use vinyl material because it’s the cheapest material available in the market. More importantly, they are environmental—friendly, non- corrosive, and recyclable. With limitless color options and attractive design choices, there are more than enough style combinations to make your replacement windows in Kingston look drool-worthy.

Today, offering our services to 40 locations in Ontario, we are the prime choice of the residents of Kingston. With customizable vinyl windows and doors to match your expectations, our products are popular for efficiency and exceptional quality; and with our work process all in line with the Canadian Standards Association, you can order your replacement windows in Kingston with confidence.

Serving Kingston for Over 40 Years

Clera Windows & Doors, as the most trusted names in providing the highest quality windows and doors replacement, has been serving the residents of Ontario for nearly 40 years. Our team is comprised of skilled individuals with a passion for keeping the customer first. Our reputation in Kingston and the surrounding areas is the result of our ability to deliver products in time without compromising on quality.

Founded in 1978, Clera today has an excellent team that strives to achieve perfection in manufacturing, installation process, and customer care service.

Extensive Range Of Vinyl Windows - Clera Windows + Doors
Serving Aylmer For Over 40 Years - Clera Windows + Doors

Right from the order to delivery and installation, everything is done by giving attention to details. —no matter from which part of Ontario you are ordering from, our products will reach you safely, without any damage. You can consider that our guarantee. Each of our products is Energy Star Certified, which makes them durable, energy-saving, and environmentally-friendly.

We design, fabricate, test, and install all of our products ourselves to ensure 100% customer satisfaction. Our team of specially-trained installers has peerless expertise, and will make sure your replacement door looks and operates like new for years to come. Don’t forget to look through our selection of door hardware, as well as the custom glass design options we have available for our doors, since you never know where you might find what you’ve been looking for.

Meet the Team at Clera Windows & Doors in Kingston

As a family run business, Clera that started as a small company in 1978, today has a big family of hard-working employees, who settle for nothing less than perfection. Our team has one unwavering goal, and that is to be the best manufacturer of doors and windows.

Moreover, by manufacturing everything in our warehouse in Ontario, we ensure top quality by scrutinizing everything from start to finish.

If you’re seeking for the best replacement windows in Kingston or neighboring areas, visit your nearest Clera windows & Doors in Kingston and get an idea yourself. Our team will answer all of your queries in case you still have doubts.

Professional Installers - Clera Windows + Doors
Meet The Team - Clera Windows + Doors
Best Options For Your Replacement Doors And Windows - Clera Windows + Doors