Expert Window and Door Replacement in Markham
Expert Window and Door Replacement in Markham
At Custom Window Designs in Markham, we specialize in top-quality window and door replacement and installation services. Our team has over 50 years of combined experience in the industry, ensuring that we deliver a comprehensive range of services from start to finish. What sets us apart is our expertise in creating and installing custom-made products that cater to various budget requirements. We even offer flexible financing options. Our main goal is to ensure that our customers are completely satisfied, which is why we provide free estimates to address all your custom window and door installation needs in Markham.

Window Replacement Markham
When it comes to window replacement in Markham, Custom Window Designs sets itself apart. We don’t just install windows; we also manufacture them in Markham. This unique approach provides several key advantages. By producing our windows in-house, we are able to keep costs down, offering you premium products at competitive prices. Additionally, as both the manufacturer and installer, there are no middlemen involved, reducing hassle with warranty claims and ensuring seamless customer support. Our complete control over the production process guarantees superior quality, customizable options, and quicker project timelines. When you choose Custom Window Designs, you’re selecting a hassle-free, cost-effective, and high-quality window replacement experience in Markham.

Door Replacement Markham
Markham – Custom Window Designs takes pride in offering an extensive selection of steel and fiberglass doors for door replacement in Markham. Our range includes Red Cedar and Oak options, giving you the opportunity to personalize the appearance of your door to reflect your unique style. With customizable, secure frames and a variety of stains and finishing varnishes to choose from, you can create a door that not only enhances the security of your home but also adds a touch of elegance. Our steel entry doors meet the highest standards and are backed by our exclusive 10-year warranty. If you’re looking for superior thermal efficiency and low maintenance, we also have a comprehensive collection of fiberglass door styles, such as front entry, side entry, and rear entry doors, designed to enhance the curb appeal of your home while providing lasting value.
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
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.

In Markham, casement windows are regarded as a timeless and cost-effective window solution for your home. These windows feature a single sash that swings open outward, allowing for excellent ventilation whenever required, while also providing a secure seal when closed. Casement windows are known for their enduring elegance and ability to complement various architectural designs. They offer reliable insulation when shut, thereby enhancing energy efficiency. With options for customization in materials, finishes, and grille designs, casement windows effortlessly blend with your home’s unique style, making them a versatile choice for any room in Markham.

Awning windows make for the perfect addition to your Markham home. These top-hinged windows open outward from the bottom, making them ideal for all weather conditions. Their unique design effectively prevents water from entering even during light showers, ensuring excellent ventilation. Awning windows are celebrated for their contemporary aesthetics and adaptability, effortlessly complementing various architectural styles. When sealed, they significantly enhance energy efficiency by maintaining indoor temperatures. With customizable options in materials, finishes, and grille patterns, awning windows not only introduce style and functionality into your living space but also infuse it with abundant natural light and fresh air, creating a delightful and inviting atmosphere.

Single hung windows are classic and cost-effective choices for homes in Markham, now featuring the added functionality of tilt and turn options. Comprising two sashes, with only the lower one being movable, these windows efficiently provide ventilation through the lower sash while keeping the upper sash securely fixed. Single hung windows are renowned for their simplicity and timeless appeal, making them suitable for various architectural styles in Markham. They excel in insulation when closed, contributing to energy efficiency. Moreover, these windows offer customization options in different materials, finishes, and grille patterns to seamlessly align with your Markham home’s aesthetic, making them a practical and versatile choice for any space.

Double hung windows in Markham are versatile and timeless, now featuring the additional convenience of tilt and turn functionality. These windows boast two movable sashes, allowing for flexible ventilation options and easy cleaning from indoors. Renowned for their classic look, double hung windows complement various architectural styles in Markham. When closed, they provide excellent insulation, enhancing energy efficiency in your Markham home. With customizable choices such as materials, finishes, and grille patterns, double hung windows can be tailored to match your home’s aesthetic while offering outstanding functionality.

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

Double slider windows in Markham offer versatility and functionality, now with the added convenience of tilt and turn functionality. These windows feature two movable sashes that slide horizontally, allowing for flexible ventilation options and easy indoor cleaning. With a modern and contemporary appearance, double slider windows are a great fit for various architectural styles in Markham. When closed, they ensure excellent insulation, enhancing energy efficiency in your Markham residence. Offering customizable choices such as materials, finishes, and grille patterns, double slider windows can be personalized to match your Markham home’s aesthetic while delivering outstanding functionality.

Bay and bow windows serve as stunning architectural elements that add charm and character to Markham homes. Bay windows typically consist of three or more windows arranged in an angled projection, creating a cozy alcove. On the other hand, bow windows have an elegant curved structure formed by a arrangement of four or more windows. Both options offer breathtaking views of the surroundings and fill interiors with an abundance of natural light. Markham homeowners can personalize their bay and bow windows even further by choosing from a variety of window styles and configurations that match their unique aesthetic preferences. Moreover, these windows provide additional space for seating or decorative purposes, seamlessly combining design and functionality in any Markham residence.
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At Custom Window Designs Markham, we offer a versatile range of fixed windows in both high and low profile styles. High profile windows, with their larger frames, are ideal for those seeking to make a bold statement, while our low profile options offer a more minimalist aesthetic with slimmer frames. Both styles provide clear, unobstructed views and ample natural light, along with excellent thermal efficiency. This makes them a practical and stylish choice for areas in your home where consistent temperature is important but ventilation is less of a priority. Our windows combine durability with design, ensuring a lasting impact on both the comfort and appearance of your space.

Custom Window Designs offers a range of specialty windows that beautifully blend elegance with practicality for your home. Our selection includes uniquely shaped windows for architectural sophistication, triple sliders for expansive views and seamless operation, and designer glass options to enhance aesthetic appeal. Each window is meticulously crafted to exceed your expectations, transforming your home’s ambiance with unparalleled design and superior quality. This dedication to craftsmanship ensures that our windows not only elevate the style of your home but also contribute to its energy efficiency and comfort.
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.
Window and Door FAQ
Our Work
At Custom Window Designs, we specialize in elevating your living space through a variety of services, including expert window installations in Markham 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.