Aluminum windows are the perfect combination of style, strength, and energy efficiency, making them a popular choice for homes and businesses in Toronto.






Top-Rated Aluminum Window Replacement Services
At WELDA Windows & Doors, we understand that replacing your windows is a significant investment in your home or business. That’s why we’re dedicated to delivering top-quality aluminum window replacement services designed to exceed your expectations. From helping you select the perfect window style to ensuring precision installation, our team works closely with you every step of the way.
Our focus on customer satisfaction and attention to detail sets us apart as one of the top window and door contractor. Our aluminum windows are made from the best materials and crafted to the highest standards, ensuring long-lasting performance. Whether you’re upgrading to improve energy efficiency or enhance curb appeal, we have the expertise to deliver results that stand the test of time.
Benefits of Aluminum Windows:
Durability
Aluminum windows are built to last. They’re incredibly strong, resist corrosion, and won’t warp or fade over time. No matter what Toronto’s weather throws at them, they’ll stay looking great and performing perfectly.
Thermal Performance
Thanks to innovative thermal break technology, aluminum windows offer impressive insulation. They help keep your home comfortable year-round while reducing energy costs—keeping you cozy in winter and cool in summer.
Low Maintenance
One of the best things about aluminum windows is how little maintenance they need. With just occasional cleaning, they’ll continue to look sleek and function smoothly for years, giving you more time to focus on what matters most.
Flexibility
Aluminum windows are incredibly versatile. Whether you’re looking for a bold custom design or a classic style, they can be tailored to fit virtually any size, shape, or aesthetic preference.
Features & Specifications of Aluminum Windows
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Unmatched Strength
Benefit from the strength of aluminum to support large glass surfaces for plenty of natural light and unobstructed views.
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Multipoint Hardware
Multipoint hardware enhances security and energy efficiency by locking at multiple points along the window, providing superior protection and a tighter seal.
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LoE Coated Glass
Our LoE-coated glass meets Canada's ENERGY STAR standards by balancing solar heat gain and insulation, reflecting infrared and UV light to maintain comfort and protect interiors.
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Thermal Break Technology
Advanced thermal breaks are specialized barriers within the frame that minimize heat transfer, significantly enhancing energy efficiency and ensuring comfortable temperatures year-round.
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High Performance
Aluminum windows offer high-performance ratings, from air permeability and water tightness to wind load resistance, thermal insulation, acoustic performance, and static torsion.
- Air Permeability: 4 (600 Pa)
- Water Tightness: E1650 (1650 Pa)
- Resistance to Wind Load: 4 (1600 Pa)
- Thermal Insulation Value (U-Value): 1.0 - 2.8 W/(m²K)
- Acoustic Performance: Rw (C; Ctr) = 42 (-2; -6) dB
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Versatility
You can get aluminum windows for many different applications. Tilt and Turn for versatility and convenience, Tilt and Slide for compact spaces, folding systems for wide open views or bottom hung for modern ventilation.
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Technical Specifications
- Frame Depth: 75 mm
- Vent Depth: 65/85 mm
- Profile Thickness: 1.4/2 mm
- Glass Thickness: Max 48/58 mm
- Thermal Insulation Bar: 34 mm (with optional styrofoam)
- Uf Value: 1.35 - 1.82 W/m²K

Application Options
There are many ways you can customize your aluminum windows including:
- INWARD OPENING
- BOTTOM HUNG
- TILT AND TURN OPENING
- VENT FOR PVC ACCESSORIES
- TILT AND SLIDE
- FOLDING

If You’re a Contractor or a Custom Home Builder
At Welda Windows and Doors, we understand the importance of reliable and high-quality products for contractors and custom home builders. That’s why we offer a wide range of windows and doors that are designed to meet the unique needs of the construction industry.
Whether you’re a contractor working on a renovation project or a custom home builder creating a new dream home, we have the expertise and resources to supply you with the windows and doors you need. We offer a wide selection of standard window and door styles that can be customized to fit any project. We also offer a variety of materials, finishes, and hardware options to ensure that our products match your desired style and functionality.
In addition to our standard products, we also offer custom design services for contractors and custom home builders who require a unique solution. Our team of experts will work closely with you to design windows and doors that meet the exacting standards of your project. We use only the highest-quality materials and innovative technology to ensure that our products are energy-efficient, durable, and beautiful.
At Welda Windows and Doors, we are committed to delivering exceptional customer service and reliable products to contractors and custom home builders. We understand the importance of timely delivery and installation, and we work closely with our clients to ensure that our products are delivered on time and on budget.
If you’re a contractor or custom home builder looking for high-quality windows and doors, look no further than Welda Windows and Doors. Contact us today to learn more about our products and services, and to see how we can help you achieve your construction goals.

If You Are a Designer or an Architect
At Welda Windows and Doors, we understand that architects and designers have unique needs when it comes to windows and doors. That’s why we offer high-performance windows and doors that can be custom built to your design specifications.
Our custom-built windows and doors are designed to meet the exacting standards of architects and designers. We use only the highest-quality materials and innovative technology to ensure that our products are energy-efficient, durable, and beautiful. Our team of experts will work with you to design windows and doors that complement your overall design vision. We offer a range of materials, finishes, and hardware options to ensure that your windows and doors match your desired style and functionality.
In addition to our custom design services, we also offer a wide range of standard window and door styles that can be customized to meet your needs. Whether you’re looking for traditional, modern, or transitional designs, we have the expertise and resources to help you achieve your vision. At Welda Windows and Doors, we are committed to delivering high-quality products and exceptional customer service. We take pride in working closely with architects and designers to ensure that our windows and doors meet the unique needs of each project.
If you’re an architect or designer looking for high-performance windows and doors that can be custom built to your design, look no further than Welda Windows and Doors. Contact us today to learn more about our products and services.
Other types of windows:
Why Choose WELDA for Aluminum Windows

Premium Products
Durable, stylish, and energy-efficient windows and doors designed to enhance your home.
Professional Service & Installation
Certified experts deliver a seamless installation experience, paired with personalized solutions tailored to your home and needs.
Strong Warranties
Industry-leading protection for lasting peace of mind.
Fair & Transparent Pricing
Competitive rates with no hidden costs.

Schedule a Free Consultation
Contact WELDA Windows & Doors today to find out how we can help you with your window and door needs.
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