Top 5 Window and Door Companies in Markham (2025 Edition)
- Wintur
- 2 hours ago
- 4 min read
Markham continues to be one of the fastest-growing regions in the Greater Toronto Area. With beautiful suburban homes, new developments, and luxury custom builds, homeowners here want windows and doors that look great, perform well, and last decades.
If you are planning a renovation or new construction in Markham, choosing the right window and door company can make all the difference. This 2025 guide lists the top-rated window and door companies serving Markham, along with key buying tips, local pricing, and advice for selecting the right installer.
Why Markham Homeowners Are Upgrading Their Windows and Doors
Homes in Markham are exposed to varying weather conditions and humidity levels throughout the year. Many homeowners are replacing outdated windows and doors to improve comfort, efficiency, and security.
Common reasons for upgrading include:
Energy savings: Modern glazing and insulated frames reduce utility bills.
Aesthetic improvements: Sleeker designs and color finishes add resale value.
Noise control: Triple glazing helps reduce urban noise.
Safety and durability: New locking systems and stronger aluminum frames.
A window and door upgrade is one of the highest-return home improvements in the Markham market.
What to Look For in a Markham Window Company
Before selecting a company, keep these key factors in mind:
Local expertise: Experience working with Markham-style homes and neighborhoods.
Energy Star certification: Ensures better insulation and reduced energy loss.
Warranty and aftercare: Long-term service for both product and installation.
Custom fabrication: Especially important for modern homes or unique architectural designs.
Transparent quoting: Avoid vague pricing or hidden costs.
Top 5 Window and Door Companies in Markham (2025)
Service Area: Markham, Richmond Hill, and North York
Wintur is a trusted name in the GTA window industry, specializing in premium aluminum and European-style systems. They offer a wide range of products including tilt-and-turn windows, lift-and-slide doors, and custom commercial glazing.
Why homeowners choose Wintur:
Modern, architectural-grade aluminum systems
European thermal technology built for Canadian weather
In-house fabrication and professional installation
Full warranty on products and labor
Wintur combines style and function, making them a top choice for Markham homeowners upgrading to modern or energy-efficient systems.
Best for: Luxury renovations, custom homes, and aluminum window systems.
2. Landmark Windows and Doors
Landmark is a long-standing Markham-based company offering a mix of vinyl, wood, and hybrid systems. They are known for traditional designs that suit suburban homes and new builds alike.
Best for: Homeowners seeking classic vinyl or wood frames with good value.
3. Clera Windows and Doors
A national brand with a strong presence in York Region, Clera offers Energy Star certified products and a wide variety of frame colors and finishes.
Best for: Variety, customization, and long-term warranty coverage.
4. EcoTech Windows
Located near Markham, EcoTech is known for its energy-efficient vinyl and hybrid frames. They focus on maximizing R-values and meeting Greener Homes standards.
Best for: Energy-conscious homeowners who want affordable upgrades.
5. Northern Comfort Windows
Operating across the GTA, Northern Comfort provides reliable service and financing options. Their offerings include entry doors, patio doors, and standard window replacements.
Best for: Standard window replacements and quick turnaround times.
Average Window and Door Costs in Markham (2025)
Prices vary depending on the material, design, and installation complexity. Here is an overview of average 2025 pricing for Markham homes.
Cost Factors:
Frame type (vinyl, aluminum, wood, hybrid)
Double vs triple glazing
Finishing and interior trim
Permits or structural modifications (for large openings)
Permits and Local Requirements in Markham
Most standard replacements in Markham do not need a building permit unless you modify the structure of your home, such as removing a wall or enlarging openings. For large structural work, you may require:
Approval from the City of Markham Building Division
Structural drawings
On-site inspection after installation
Always confirm with your contractor before starting major work.
Why Wintur Is a Top Choice for Markham Homeowners
Wintur has become one of the go-to window and door specialists in the region. Their aluminum and tilt-and-turn systems are designed for homeowners who value performance, security, and design consistency.
Key benefits:
Custom aluminum fabrication
European hardware and thermal technology
Precision installation by trained professionals
Service coverage across Markham, Richmond Hill, and North York
Maintenance and Longevity Tips
To keep your new windows and doors looking and performing their best:
Clean frames and glass regularly
Lubricate hinges and locks once a year
Check for air leaks before winter
Avoid using abrasive cleaners on coated surfaces
Proper maintenance extends lifespan and preserves insulation performance.
FAQs About Windows and Doors in Markham
Q1. What is the average window lifespan?
Modern vinyl or aluminum windows last 25 to 40 years with regular care.
Q2. Do I need a permit for window replacement?
Not for same-size replacements, but yes if you alter wall openings.
Q3. Which is better for Markham weather: vinyl or aluminum?
Aluminum provides superior durability and insulation for extreme conditions.
Q4. Are there rebates for window upgrades?
Yes, homeowners can check Enbridge and Canada Greener Homes rebates for qualifying products.
Final Thoughts
Markham homeowners are investing in modern, energy-efficient window and door systems to improve comfort and boost property value. Choosing the right company ensures quality, compliance, and long-term performance.
Whether you are replacing standard vinyl windows or upgrading to premium aluminum systems, working with a professional installer makes all the difference.
Wintur Windows and Doors remains one of the top choices for homeowners and builders in Markham seeking high-quality design, precision, and service.
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