Engineered and installed by Total Seal for maximum performance and efficiency.
Trusted by thousands of homeowners across Southern Ontario
Features
Engineered for strength, insulation, and precision — built to outperform ordinary vinyl windows.
Behind every TotalSeal™ window is advanced engineering that redefines how vinyl systems perform — stronger, quieter, and more energy-efficient by design.
Products
Three exclusive lines designed for performance, aesthetics, and efficiency.

Proven 3¼” frame depth, ideal for retrofit and replacement projects.

Modern minimalist design with ultra-thin frames and maximum glass.
Why Choose Us
Why homeowners across the GTA choose us for their window and projects? Here are six key reasons:
We make and install our own windows, ensuring top quality without markups.
We use modern technology to improve comfort and performance of every window.
Certified in-house installers guarantee precise fitting and clean, efficient work from start to finish.
Our production and installation teams are always ready to deliver and install your order on time.
We stand behind our products and installation. Any issues are fixed free of charge.
Your local team for window replacement across Toronto and the GTA.
Discuss your project with one of our experts and receive a personalized quote.
Our Service Process
Contact us today for a free, no-obligation consultation and quote. Our team is eager to help you enhance your home’s beauty, comfort, and energy efficiency.
Project Cost Guide
Windows | ||
|---|---|---|
Window Type | Avg. Price Min | Avg. Price Max |
Bay/Bow | $ 2500 | $ 6000 |
Casement | $ 390 | $ 950 |
Awning window | $ 390 | $ 950 |
Sliding window | $ 260 | $ 790 |
Single hung window | $ 270 | $ 850 |
Everything you need to know to start your project.
In Markham, installation quality defines comfort and home value. TotalSeal offers custom-built systems adapted to architectural and climate requirements.
Data Table: Window & Door Pricing in Markham
Material Type | Price Range (CAD/unit) | Description |
Vinyl | $450 – $950 | High-efficiency residential option |
Aluminum | $800 – $1,500 | Premium modern frames |
Fiberglass Door | $2,800 – $4,200 | Strong, energy-efficient entry door |
Comparison Table: TotalSeal vs Competitors (Markham)
Feature | TotalSeal System | Competitor Setup |
Frame Construction | Fusion-welded, insulated | Mechanical assembly |
Glass Type | Low-E, Argon-filled | Standard double pane |
Installer Training | Factory-certified | General labor |
Warranty Coverage | 25 years | Limited (5–7 years) |
With TotalSeal, Markham homeowners enjoy consistent quality, energy savings, and architectural versatility.
Recent projects
See how we’ve helped homeowners upgrade their homes with new windows.

Installed new vinyl windows with triple glazing for better insulation and noise reduction.

Replaced a door with a custom fiberglass model featuring decorative glass and multi-point lock.

Installed a sliding patio doors for smoother access to the backyard and improved natural light.
Schedule an in-home estimate with one of our experts.
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By submitting this form, you agree to our Terms and Conditions.
By submitting this form, you agree to our Terms and Conditions.