Expert Window and Door Solutions

Expert Window and Door Solutions

Transforming GTA Homes with Tailored Window and Door Installations

Transforming GTA Homes with Tailored Window and Door Installations

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Windows and Doors Mississauga

Windows and Doors Mississauga

At Custom Window Designs in Mississauga, we specialize in premium window and door replacement and installation services. Our team, with over 50 years of collective experience in the industry, is committed to providing comprehensive services from initial estimates to post-installation support. We pride ourselves on our ability to custom manufacture and install products tailored to fit various budgetary requirements, offering flexible financing options. Dedicated to ensuring complete customer satisfaction, we offer free estimates to meet all your custom window and door installation needs in Mississauga.

Replacement Windows

Explore our diverse range of replacement windows, designed to enhance the beauty and efficiency of your home with various styles to choose from

Replacement Doors

Discover our extensive selection of entrance and patio doors, each crafted to enhance your home’s aesthetic while ensuring optimal security and functionality

Trade Professionals

A dedicated resource for contractors, builders, and architects to access premium windows, ensuring quality and excellence for every project

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

Window Replacement Mississauga

Our double or triple glazed windows are Energy Star rated, with Argon Gas filled units, and the highest grade coatings of Low E in the industry, which provides superior insulation all year round. Our windows are finely sculpted in “Contoured” or “Contemporary” profiles, combining thermal performance and unique style.

Casement Window

Casement windows, hinged and operated with a crank or lever, offer exceptional functionality and aesthetics. They provide abundant ventilation and unobstructed views when open, sealing tightly to enhance energy efficiency when closed. Casements are versatile, adapting to various architectural styles through material and finish choices. With customizable grille patterns, they suit any home’s design. Renowned for ease of operation and security features, these windows bring natural light and fresh air while adding an elegant touch to a space.

Casement Window

Awning windows are top-hinged, opening outward from the bottom, making them perfect for rain or shine. They offer excellent ventilation, even during light showers, as the outward-sloping design prevents water from entering. Awning windows are known for their contemporary look and versatility, fitting well in various architectural styles. They also enhance energy efficiency when sealed, maintaining indoor temperature. With customizable options, such as materials, finishes, and grille patterns, awning windows add style and functionality to any space while bringing in natural light and fresh air.

Casement Window

In Mississauga, single hung windows are timeless and budget-friendly choices for homes, now with the added functionality of tilt and turn options. These windows feature two sashes, with the lower one being movable, offering efficient ventilation through the lower sash while keeping the upper sash securely fixed. Renowned for their simplicity and enduring appeal, single hung windows complement various architectural styles. They excel in insulation when closed, enhancing energy efficiency in your Mississauga residence. Additionally, these windows can be tailored with different materials, finishes, and grille patterns to harmonize with your home’s aesthetic, providing a practical and versatile choice for any space.

Double Hung

Double hung windows in Mississauga are versatile and timeless, now with the added convenience of tilt and turn functionality. These windows feature two movable sashes, enabling flexible ventilation options and easy indoor cleaning. Celebrated for their classic appearance, double hung windows seamlessly complement various architectural styles in Mississauga. When closed, they deliver exceptional insulation, enhancing energy efficiency in your Mississauga residence. With customizable options, including materials, finishes, and grille patterns, double hung windows can be personalized to harmonize with your home’s aesthetic while providing superb functionality.

Single Slider

Single slider windows in Mississauga offer practicality and space-saving solutions, now with the added convenience of tilt and turn functionality. These windows come with one movable sash that slides horizontally to open and close, ensuring efficient ventilation and making them ideal for areas with limited exterior space in Mississauga. Featuring a modern and sleek appearance, single slider windows complement contemporary architectural styles. When closed, they provide excellent insulation, contributing to energy efficiency in your Mississauga residence. With customizable options, including materials, finishes, and grille patterns, single slider windows can be tailored to elevate your Mississauga home’s design while maximizing functionality.

Double Slider Window

Double slider windows in Mississauga offer versatility and functionality, now with the added convenience of tilt and turn functionality. These windows come with two movable sashes that slide horizontally, providing flexible ventilation options and easy indoor cleaning. With a modern and contemporary appearance, double slider windows complement various architectural styles in Mississauga. When closed, they guarantee excellent insulation, enhancing energy efficiency in your Mississauga residence. Featuring customizable options, including materials, finishes, and grille patterns, double slider windows can be tailored to harmonize with your Mississauga home’s aesthetic while offering exceptional functionality.

Casement Window

Bay and bow windows are exquisite architectural features that add charm and character to homes. Bay windows typically consist of three or more windows arranged in an angled projection, creating a cozy alcove. Bow windows, on the other hand, feature a curved arrangement of four or more windows, creating a graceful, rounded structure. Both types offer a panoramic view of the outdoors and flood interiors with natural light. Bay and bow windows can be customized with various window styles and configurations to suit your aesthetic preferences. They also provide additional space for seating or decoration, making them perfect for both design and functionality in any home.

Window and Door FAQ

At Custom Window Designs, we offer a variety of vinyl window styles including awning, casement, slider, bay and bow, and picture windows just to name a few. Each style is designed to meet different aesthetic and functional needs of your home. We encourage you to explore our full range of options on our Windows Page for more details.

Choosing vinyl windows for your home comes with several benefits. Vinyl is known for its durability, resisting moisture, corrosion, and decay, which ensures a longer lifespan for your windows. They are also highly energy-efficient, providing excellent insulation that can lead to significant savings on your energy bills. Additionally, vinyl windows require minimal maintenance and are a cost-effective solution compared to other materials. This combination of low maintenance, durability, and energy efficiency makes vinyl windows an ideal choice for homeowners.

Custom Window Designs stands apart in the Greater Toronto Area by offering a unique combination of both manufacturing and installing our windows. This integrated approach presents several key advantages:

  • Streamlined Process: By handling both manufacturing and installation, we ensure a seamless and efficient process from start to finish. This integration means there are fewer parties involved, which simplifies communication and coordination, leading to a smoother overall experience for our clients.
  • Lower Costs: Since we are both the manufacturer and installer, we can offer more competitive pricing. By eliminating the middleman, we reduce extra costs that are typically passed on to customers, ensuring you get the best value for your investment.
  • Consistent Quality Control: Overseeing the entire process from manufacturing to installation allows us to maintain strict quality control. We ensure that every window meets our high standards, providing you with superior products that are installed with expertise.
  • Simplified Warranty and Service: Dealing with warranty claims becomes much easier when you work with the same company that manufactured and installed your windows. If any issues arise, you can directly contact us, avoiding the hassle of being redirected between the manufacturer and separate installers.
  • Tailored Solutions: We are able to offer more personalized solutions. Since we are involved in both creating and fitting the windows, we can tailor our products to meet the specific needs and preferences of each client.

By choosing Custom Window Designs, you benefit from a hassle-free, cost-effective, and high-quality experience, backed by a team that fully understands every aspect of the product and its installation.

No, Custom Window Designs does not use subcontractors for any of our installation projects. All our installation professionals are direct employees of our company, not third-party workers. This policy is a fundamental aspect of how we maintain control over the quality and efficiency of our work.

By employing our own team of skilled installers, we ensure that every aspect of the job meets our high standards. This approach allows us to guarantee not just the quality of the installation but also its timeliness. Our in-house team is thoroughly trained and familiar with our range of products, ensuring they have the expertise to handle any situation that may arise during the installation process.

Additionally, this policy of not relying on subcontractors translates into savings for our customers. Since we manage the entire process internally, we avoid the markup costs typically associated with subcontracting. This means we can offer competitive pricing while ensuring the highest level of workmanship.

In summary, our commitment to using only our own employees for installations is a key factor in our ability to deliver exceptional service, quality assurance, and cost savings to our clients.

In addition to our high-quality windows and doors, Custom Window Designs extends its expertise to a range of other exterior home improvement products. We proudly offer services for siding, soffit, fascia, and eavestroughs, catering to a variety of your exterior renovation needs.

Our commitment to quality and craftsmanship is evident in these additional services as well. We ensure that each product, whether it’s siding, soffit, fascia, or eavestroughs, is installed with the same level of expertise and attention to detail as our windows and doors. This comprehensive approach allows homeowners to achieve a cohesive and well-maintained appearance for their home’s exterior.

For those interested in exploring our siding options and other related services, we invite you to visit our dedicated website, Custom Aluminum Siding. Here, you’ll find detailed information on our full range of exterior products, along with insights into our approach, materials, and service guarantees. Visit our Custom Aluminum Siding website for more information and to see how we can help enhance the beauty and functionality of your home.

Custom Window Designs understands that investing in new windows and doors is a significant decision, and we strive to make it more manageable for our customers by offering flexible financing options. We provide tailored financing solutions, including options for deferred payments and equal payments, to suit different budgetary needs.

Our deferred payment plan allows customers to delay the start of their payments, offering added flexibility during the initial period. This can be particularly beneficial for those who need immediate installation but prefer to manage their finances over a longer term.

Alternatively, our equal payments plan enables customers to spread the cost of their investment over a set period, making budgeting easier and more predictable. This option is ideal for those who prefer a consistent payment schedule.

Moreover, we offer competitive interest rates, ensuring that our financing options are not only convenient but also economically advantageous. We believe in providing transparent and customer-friendly financing solutions to help you achieve your home improvement goals without financial strain.

Get a FREE Quote

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

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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