Manufactured in Ontario

Windows and Doors Installation in Markham, ON

Engineered and installed by Total Seal for maximum performance and efficiency.

Trusted by thousands of homeowners across Southern Ontario

Features

What Makes TotalSeal Windows Different

Engineered for strength, insulation, and precision — built to outperform ordinary vinyl windows.

The TotalSeal™ Technology

Behind every TotalSeal™ window is advanced engineering that redefines how vinyl systems perform — stronger, quieter, and more energy-efficient by design.

Products

Explore the TotalSeal™ Premium Window Series

Three exclusive lines designed for performance, aesthetics, and efficiency.

Classic Series
Classic Series

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

Explore Classic Series
UltraSlim Series

Modern minimalist design with ultra-thin frames and maximum glass.

Explore UltraSlim Series

Why Choose Us

Our Advantages

Why homeowners across the GTA choose us for their window and projects? Here are six key reasons:

Factory-Direct Products

We make and install our own windows, ensuring top quality without markups.

Energy Efficiency

We use modern technology to improve comfort and performance of every window.

Professional Installation

Certified in-house installers guarantee precise fitting and clean, efficient work from start to finish.

Fast Turnaround

Our production and installation teams are always ready to deliver and install your order on time.

Lifetime warranty

We stand behind our products and installation. Any issues are fixed free of charge.

Local Expertise

Your local team for window replacement across Toronto and the GTA.

Book a free in-home estimate

Discuss your project with one of our experts and receive a personalized quote. 

Our Service Process

Seamless from Start to Finish

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.

Initial Consultation and Assessment
As windows specialists, we understand the unique needs of local homeowners. Our team provides personalized recommendations to ensure you get the perfect solutions for your property and climate.
Product Selection and Customization
Our windows are engineered for superior energy efficiency, helping you reduce energy bills and increase comfort. We offer a wide range of Energy Star certified products to suit every style and budget.
Professional Installation
Professional Installation and Exceptional Customer Care: Our skilled installation crew ensures your new windows are fitted perfectly for optimal performance. We pride ourselves on our attention to detail and commitment to customer satisfaction throughout the entire process.
Final Inspection and Customer Satisfaction
We stand behind our products and workmanship with industry-leading warranties. Our lifetime warranty and satisfaction guarantee provide peace of mind, knowing that we'll fix any issues free of charge.

Project Cost Guide

Window Pricing
Get an idea of average installation costs for popular window types across the GTA. Prices vary depending on size, material, and configuration.
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
Still have questions?
Can’t find the answer you’re looking for? Please chat to our friendly team.
Frequently asked questions

Everything you need to know to start your project.

How to choose and order windows and doors installation in Markham?

In Markham, installation quality defines comfort and home value. TotalSeal offers custom-built systems adapted to architectural and climate requirements.

How to choose windows and doors installation in Markham by price and quality?

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

Why choose windows and doors replacement and installation in Markham from our company?

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

Our Latest Installations

See how we’ve helped homeowners upgrade their homes with new windows.

Ajax
Ajax
Full Window Replacement

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

Etobicoke
Entry Door Upgrade

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

Woodbridge
Patio Door Installation

Installed a sliding patio doors for smoother access to the backyard and improved natural light.

Get a free quote
Get a free quote

Schedule an in-home estimate with one of our experts.

By submitting this form, you agree to our Terms and Conditions.

Get a free quote
Schedule an in-home estimate

By submitting this form, you agree to our Terms and Conditions.

Get a free quote
Schedule an in-home estimate

By submitting this form, you agree to our Terms and Conditions.