Elevate Your Space with Custom Vinyl Windows

Elevate Your Space with Custom Vinyl Windows

Discover Style, Durability, and Efficiency in Every Design

Discover Style, Durability, and Efficiency in Every Design

Get a FREE Quote

Vinyl Windows Mississauga

Vinyl Windows Mississauga

Welcome to the world of vinyl windows, where elegance meets innovation in every frame. Our collection of premium vinyl windows are designed to transform your home, combining timeless style with cutting-edge technology. Each window is crafted to not only enhance the beauty of your space but also to offer unparalleled durability and energy efficiency. Whether you’re renovating an old charm or building a modern sanctuary, our diverse range of styles ensures that you’ll find the perfect match for your unique taste. Experience the blend of functionality and aesthetics, and discover how our vinyl windows can elevate the comfort and value of your home.


Awning windows are top-hinged and outward-opening, offering excellent ventilation and rain protection with a contemporary design that enhances energy efficiency, making them versatile and stylish additions to any space.


Operated by a crank or lever, combine functionality and aesthetics with exceptional ventilation, unobstructed views, energy efficiency, and adaptability to various architectural styles, offering both ease of operation and security.

Single Hung

This window offers a timeless option with tilt and turn functionality, featuring two sashes for efficient ventilation, insulation for enhanced energy efficiency, and customizable materials and finishes to suit any home’s aesthetic.

Double Hung Tilt and Turn
Double Hung

This style is versatile and timeless, featuring tilt and turn functionality, with two movable sashes for ventilation and easy cleaning, complementing various architectural styles and enhancing energy efficiency with customizable options.

Single Slider Tilt and Turn
Single Slider

Single slider windows provide practicality and space-saving solutions, now with tilt and turn functionality, featuring one movable sash for horizontal sliding, efficient ventilation, and suitability for limited exterior space.

Double Slider Tilt and Turn
Double Slider

These windows offer versatility and functionality, now with tilt and turn functions, it features two movable sashes for horizontal sliding, flexible ventilation, and easy cleaning, complementing various architectural styles with a modern appearance.


Bay windows are known for adding unique charm to living spaces with their sunlit havens, panoramic views, and versatile applications, while ensuring durability and energy efficiency in each custom-built window.


Explore the elegance and functionality of Bow Windows where these unique architectural features, consisting of gracefully curved windows, add charm, panoramic views, and abundant natural light to your living spaces.


We offer both High and Low Profile Fixed Windows, which provide architectural sophistication and creativity, designed to maximize viewing areas and can be used to replace existing windows with ease.


Discover specialty windows that go beyond the ordinary, featuring meticulously crafted designer glass and customized unique shapes, providing you with the perfect opportunity to elevate the aesthetics of your space with a distinctive and personalized touch.

Get a FREE Quote

Contact us now for a complimentary, no-obligation quote on our custom window and door solutions!

Discover the Custom Window Designs Advantage

50 Years Experience

Leverage our half-century legacy in the industry, where seasoned expertise meets unparalleled craftsmanship in every window and door project

Manufacture & Install

Benefit from our end-to-end service as we not only manufacture but also expertly install ensuring quality control and lower costs

Financing Available

Ease your investment with our flexible financing options, designed to make our premium window and door solutions accessible for every budget

Lifetime Warranty

Rest easy with our lifetime warranty, offering you enduring security and trust in the lasting quality and performance of our products

Factory Direct Windows

Energy Efficient Windows

Our collection boasts double or triple glazed windows, each proudly carrying an Energy Star rating, and these windows come equipped with Argon Gas filled units, setting the standard for excellence in energy efficiency. Furthermore, we take pride in utilizing the highest grade coatings of Low E in the industry, ensuring that your windows provide exceptional insulation throughout the year, helping you maintain a comfortable and energy-efficient environment within your home, all while contributing to reduced energy consumption and lower utility bills.

Perfect Window Profile

Our windows are meticulously crafted with the option of either “Contoured” or “Contemporary” profiles, designed not only for their exceptional thermal performance but also to infuse your space with a distinctive and captivating style that enhances the aesthetics of your home. These profiles offer a harmonious blend of form and function, ensuring that your windows not only provide outstanding insulation but also contribute to the overall visual appeal of your living spaces, creating an environment that is both comfortable and aesthetically pleasing.

Premium Vinyl

Our windows are extruded from the highest quality, featuring premium lead-free PVC compounds that are formulated to resist UV, fading, and cracking. Additionally, we incorporate a non-metal Super Spacer to minimize condensation, utilize multi-chambered sashes for enhanced thermal resistance, and offer the option of adding Brickmould for an extra touch of elegance to your windows.

Fusion Welding

We ensure the precision welding of all frames and sashes to enhance their strength and durability, while our use of non-degradable sealants and reinforced joints guarantees that our windows remain watertight and airtight, effectively preventing any sealing issues.

Canadian Made

Established in 1973, our family-owned and operated company takes pride in manufacturing windows right here in Mississauga, within the same facility as our showroom. Furthermore, our in-house paint shop can custom paint your windows in a variety of colours to suit your individual style.

Are you a Trade Professional?

Work with us to elevate your projects with premium windows – your dedicated partner for contractors, builders, and architects!

Client Reviews

We take great pride in the glowing reviews from our customers! Their feedback is a testament to the outstanding service and superior quality products we consistently deliver. Our team values transparency and is committed to offering reliable, honest service to each client. We invite you to read through our customer reviews to understand why they repeatedly choose us for their exterior product requirements.

Dejan Dojcinovski


Very satisfied with work done.
Peter from Custom Window Designs came highly recommended from a friend and he delivered beyond our expectations.
He helped us with design from start to finish and we love our new windows and doors and finished sunroom.

Rob Servos


We recently had a Sliding deck door and basement windows installed by Custom window Designs. Peter and John were great to deal with and the installation was quick and efficient. Everything looks great.



Custom window designs supplied and installed all of my windows and doors at my home and I couldn’t be happier with everything! Peter was extremely knowledgeable and his staff were very professional , from the initial quote to the final product I would highly recommend Custom Window Designs to anyone looking to replace there windows and doors!

Google rating score: 4.4 of 5, based on 24 reviews

Our Work

At Custom Window Designs, we specialize in elevating your living space through a variety of services, including expert window installations in Mississauga and the entire GTA. Whether it’s crafting bespoke architectural features like bay and bow windows or enhancing your home’s energy efficiency with our top-notch window and door installations, our commitment to craftsmanship and attention to detail shines through in every project we undertake.

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