The Best Windows & Doors in Grimsby

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

The Best Windows & Doors in Grimsby

Jonathan Maljar, Our Local Representative - Clera Windows + Doors

Jonathan Maljar

Our local representative has been serving Grimsby and surrounding areas for over 5 years!


Contact us for more information and about a free quote!

Contact Us

Our Local Clera Branch Serves Grimsby

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

Jonathan Maljar, Our Local Representative - Clera Windows + Doors

Jonathan Maljar

Our local representative has been serving Grimsby and surrounding areas for over 5 years!


Contact us for more information and about a free quote!

Contact Us

Our Local Clera Branch Serves Grimsby

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

Clera Windows + Doors


Toll Free: 1-844-738-7936
Phone: 1-844-738-7936
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 Windows & Doors in Grimsby

Are you looking for a door or replacement windows in Grimsby that will be both energy-efficient and aesthetically attractive? Clera Windows & Doors are just what you were looking for. We are a customer-oriented, family-run business that has been the torch-bearer in designing and manufacturing custom replacement windows in Grimsby since 1978.

Contact Us

At Clera, we have the utmost confidence in the quality of our products. We set high standards for our doors and windows and provide a lifetime warranty on each unit. All our vinyl windows, glass panels, and other components fall within the warranty. In addition to that, if we ever fall short of fulfilling our customer’s requirements or fail to live up to their expectations, we offer them free servicing. If you have any dissatisfaction regarding the product, we are never more than a call away.

Driven by the goal to provide our clients with the best doors and windows solutions in Grimsby at reasonable prices, we have an in-house production facility. Here, each of our products is made with maximum care and attention; which is why, unlike most of our competitors, we don’t make any third-party purchases. It helps us keep the prices of our products to a reasonable amount—and anything that’s good for our customers is good for us.

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

We pride ourselves in the delivery of high-quality windows and doors, and our experienced technicians will settle for nothing less. We aim to offer superior levels of customer service right from the moment you get in touch with us, right up until your dedicated technicians finishes the installation, without over staying our welcome. Our technicians come from many years of experience, so you can expect the highest standards every time we visit.

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!)

Grimsby’s Leading Replacement Windows & Doors

Over forty-one years of experience in the business has taught us that each of our customers has unique tastes and requirements when it comes to doors and replacement windows in Grimsby. We strive to provide our customers with replacement windows in Grimsby satisfying their needs, and provide an array of choices of doors and windows from which our customers can choose.

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

We provide a wide array of high-quality replacement windows in Grimsby that enhance the appearance of your home or business. The products also work to regulate the temperature inside your home, so when the famous Canadian winter arrives, your heating bills come down. Clera’s windows are renowned throughout Ontario for offering unparalleled security and privacy.

Clera Windows & Doors seeks to relieve Grimsby residents from their continued suffering from the ever rising gas and electricity bills, through the installation of energy efficient windows and doors that will help you cut down your energy usage. Whether you’re a homeowner or a trade customer in Grimsby or the surrounding areas, we ensure complete satisfaction from out superb range of replacement doors and windows!

Clera’s windows are available in various glass and grill options and also come in different styles ranging from the conventional awning and casement style to low profile, high profile, bay, and bow ones. Besides, we also provide customized color options that let you personalize your home décor.

Our advanced color-retention technology ensures that whichever color you choose, it stays. We supply homeowners throughout Grimsby with a wide range of replacement window options, from end vent sliders to single or double hung tilt windows. Our windows are designed according to your specific measurements taken on-site, to ensure that you get a great fit at a great price.

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

Our doors in Grimsby are available in steel or fiberglass bodies in a wide array of styles. In case you are not sure about which door best suits your home or business, you can check out the user-friendly virtual designer on our website. It allows you to create numerous customizations of exterior doors. The designer ensures that your dream door is just a few clicks away.

The versatile choices that Clera provides make it ideal for replacement windows in Grimsby if you are looking to substitute your old, damaged windows. Also, if you are building your new home in Grimsby, Clera’s doors and windows are a must-have.

Vinyl Windows & Doors

Many homeowners and trade customers throughout the Grimsby area have enjoyed the benefits of our aesthetically pleasing windows and doors replacements for years. Additionally, all replacement windows and doors are carefully designed to enhance the appearance of your Grimsby home, whilst ensuring that your house remains warm and comfortable year round.

Clera’s products are of the highest quality vinyl. We have put in a lot of thought about the material that we use for our products, and vinyl came out on top due to several reasons.
The primary reason for choosing vinyl is its durability. Vinyl doors and windows have peerless endurance when it comes to adverse weather conditions and do not get disfigured easily. The second reason for preferring vinyl to other materials is that it’s economical. Vinyl is one of the cheapest manufacturing materials, and the repair costs for vinyl products are minimal.

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

Also, it’s easy to maintain their glaze and shine. You don’t require to use fancy or expensive detergents and cleaners to maintain the uncluttered appearance of your replacement windows in Grimsby. Another reason for using Vinyl products in replacement windows in Grimsby is that they are lightweight and portable. Also, the high R-value of vinyl ensures that external heat-waves are at bay, and the room can maintain its optimum temperature irrespective of the weather conditions outside.

We have been recognized and highly rated by HomeStars for our continued efforts to provide homeowners in Ontario with energy-efficient replacement windows. Every designer window frame we install in your home comes with a lifetime warranty and professional installation.

Our doors and replacement windows in Grimsby are available in a wide range of colors and styles so that each of our customers can choose the one that suits them the best.

Serving Grimsby For Over 40 Years

Over forty years of unparalleled, top-drawer service to the customers has made Clera Doors and Windows the first-choice company servicing and manufacturing doors and replacement windows in Grimsby.

The lifetime warranty on all our products and the ability to live up to our customer’s expectations have earned us the glorious reputation of being a leading manufacturer in doors and replacement windows in Grimsby, and all over Canada. We offer delivery and installation anywhere in Ontario.

Professional Installers - Clera Windows + Doors
Meet The Team - Clera Windows + Doors

All our products fit according to the norms laid down by the Canadian Standards Association. Our pool of fitters has a wealth of experience and training, and are experts at their trade. They ensure that the replacement windows and doors are fitted professionally with minimal disruption to your normal life.

We, at Clera, know how harsh the Canadian winters can be. That is why all our doors and windows have been designed, keeping in mind the severe weather conditions. They have to pass strict quality checks before they can move out of our factories. The Energy Star rated windows are environment-friendly and contribute to large amounts of energy savings.

With a wide variety of tested products meeting the loftiest of standards and on-demand fixing and servicing, thousands of families have put their faith in us for manufacturing doors and replacement windows in Grimsby and all over Canada.

Meet The Team At Clera Windows & Doors in Grimsby

Clera Windows & Doors are a family run business that has been manufacturing replacement windows and doors since 1978 in their factory located in Ontario. Our top priority is to maintain the high-quality of our products and ensure complete customer satisfaction.

We have been manufacturing and installing replacement doors for over 35 years, and this has earned us a great reputation in our locations, including Grimsby and the surrounding regions. We are committed to providing you with cost effective door replacement options, such as fiber glass doors, storm doors, and sliding and garden doors, among others.

We feel that both your windows and doors are a great investment in your home, so we put all our energy, experience, and enthusiasm into selecting and installing products that you will treasure for many years to come!

We have a professional team who have had hands-on-training and are experts at their jobs. We owe the wide fame and popularity to our team who continuously strive to provide our customers with the best quality products.

So, what are you waiting for? Come down to our stores and let us give you the most satisfying buying experience that you have ever had. Come and see for yourself what makes Clera’s door and replacement windows in Grimsby the best in the business.

Best Options For Your Replacement Doors And Windows - Clera Windows + Doors