O% Interest
For up to 36 Months (O.A.C.)
No hidden fees, just easy payment
GTA’s Trusted Experts for Replacement Windows and Doors
WE MAKE YOUR HOME COZYER AND SAFER INSIDE OUT
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Choose Your Windows + Doors Replacement Package
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Why Choose WELDA for Window and Door Replacement in GTA
Our Window and Door Installation Process
Our window and door installation process ensures superior quality and efficiency from start to finish. We take exceptional care at every step to deliver lasting, exceptional results.
Peace of Mind with Lifetime Warranty
WELDA Windows & Doors offers a lifetime warranty to give you peace of mind, knowing your investment is protected.
Quality Materials and Craftsmanship
We only use the highest-quality materials for our energy efficient windows to meet our high standards and provide both durability and great looks.
Energy Efficiency and Savings
Our products are designed with advanced energy-efficient technologies, helping you reduce heating and cooling costs while enhancing your home’s comfort year-round.
35+
Years in business
20k+
Successful projects
200,000+
Windows and Doors Installed
What Our Clients Say
About Us
We replaced all our windows and I was nervous about the mess and potential damage. The crew was perfect, fast and very clean. Got it done in a day and a half. The new windows are much better and the house looks great.
Peter
Had my whole house windows replaced. They were fast, friendly, and even checked up on me a month later to make sure I was happy. A++ service. Helped me get energy rebate at no extra cost for filling out paperwork.
Luna B
Best in their league! Reasonably priced! No games. What they say is what you get. Excellent customer service. Quality installation. Punctual and delivered right on schedule.
Trace
Installer arrived on time and date promised. Work was done cleanly and efficiently. We have been enjoying the awning and getting many compliments on it. The salesman who came to our house was very professional and knew his product dry well. Thank you Joseph.
ED.Trella
Video Testimonials:
See the WELDA Difference
35+
Years in business
20k+
Successful projects
200,000+
Windows and Doors Installed
Super Saver
Welda has once again raised the bar with our re-engineered 1 3/8 Triple Glaze Window, the highest standard in triple glaze windows. The Cardinal sealed unit can achieve an industry record of R-9.4 R-Value.
The 1 3/8 Triple Glaze Window is built for any climate keeping your home warm in the harshest of winters and cool in the hottest of summers.
- 1 Premium Vinyl Construction
- 2 CARDINAL I.G. (Insulated Glass)
- 3 Truth™ "Maxim" Heavy Duty Hardware
- 4 Fiberglass Reinforcement
- 5 Multiple-Chamber Frames & Sashes
- 6 Fusion Welded Corners
Product Features to Compare |
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 PLATINUM |
 CONTOUR |
 CONTEMPORARY |
 DIAMOND |
 Industry Avg. |
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| Welda Super Saver High Performance Glass |  |
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| Slim Frame Profile | – | – | |
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| 4 3/4″ Frame | – | – | |
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| Triple Pane Glass 1 3/8 ” Overall | – | Optional | Optional | |
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| Premium uPVC Lead Free Vinyl Construction | |
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| Textured, Matt, Euro-Finish Colours | Optional | |
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Optional | |
| Acrylic Glazing Technology | – | |
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| Self Cleaning Neat Glass | |
Optional | Optional | |
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| Energy Star Most Efficient Top Performer | |
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| Cardinal Direct Sealed IG | – | |
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| Engineered Reinforcement | – | Optional | Optional | |
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| Structural Integrity |  |
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| Sound, Security, Performance >SSP | |
Optional | Optional | |
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| Engineered Frame Insulation | Optional | Optional | Optional | – | – |
| LifeTime Warranty | |
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How We Work
Step
1
Schedule an Appointment
Schedule a free appointment at a convenient time to discuss your window and door needs. Our friendly team is ready to guide you through the initial steps.
Step
2
On-Site Consultation
One of our experts will visit your home to assess your project, take precise measurements, and discuss design options tailored to your preferences and budget.
Step
3
Confirmation & Scheduling
Once you’ve made your selection, we’ll confirm all details and schedule your installation at a time that works best for you.
Step
4
Production & Installation
Our skilled team carefully manufactures and professionally installs your custom windows and doors, ensuring a seamless fit and exceptional results.
Our Latest Projects
Have questions? We have answer!
If your windows are drafty, hard to open or close, or show visible signs of wear, like cracks or condensation between the panes, it might be time for an upgrade. High energy bills are another clue – your old windows could be letting your heating or cooling escape. A professional inspection can help confirm if replacement is the right choice.
This is one of the most commonly asked questions by homeowners. The cost of replacement windows depends on several factors, like the size, style, materials, and features you choose. It also depends on the area surrounding the existing windows and whether there is dry rot or other damage that has to be fixed before new windows can be installed. While it’s an investment, think of it as a way to boost your home’s value, energy efficiency, and comfort. We’re happy to provide a detailed estimate tailored to your project during a consultation.
Custom windows are made to fit your home perfectly—no gaps, no adjustments, just a seamless look and better energy efficiency. Plus, you get to pick the design, colour, and features that match your style. With custom windows, you’re not just getting a product but a solution built just for you.
Yes! Custom windows need expert windows installation to ensure they fit properly and perform as expected. Our professionals have the tools and know-how to handle the job efficiently and safely, saving you from headaches down the road.
The installation time can vary depending on how many windows you’re replacing and the complexity of the project. On average, most installations are completed in a day or two. Our team works efficiently while paying attention to every detail so you can start enjoying your new windows as soon as possible. In most cases, we normally install 10 to 15 windows per day.
Replacing your windows can make a huge difference in your home. You’ll enjoy better energy efficiency, which can lower your utility bills, improved comfort with no more drafts, and a fresh, updated look that enhances your home’s curb appeal. Plus, new windows can boost your property’s value and reduce outside noise, making your space quieter and more enjoyable.
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