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Building Homes that Last a Lifetime, One Dream at a Time

Who We Are

QSI Windows & Doors has proudly served the Golden Horseshoe for over 40 years. Founded in 1976, we're a family-owned and operated business with a passion for delivering exceptional quality window and door installations. We combine expertise, professionalism, and personalized service to transform your home.

Our Mission

Our mission is to empower homeowners in Hamilton and surrounding areas to enjoy the benefits of updated windows and doors. We focus on:

  • Efficiency: Installing energy-efficient windows and doors that save you money on heating and cooling costs.
  • Aesthetics: Offering a diverse range of styles and materials to enhance your home's curb appeal.
  • Quality: Using high-quality materials and ensuring meticulous installations for lasting peace of mind.
  • Customer Focus: Providing personalized attention, exceptional communication, and exceptional customer service every step of the way.

Our Services

We offer a comprehensive range of window and door solutions, including:

Windows

  • Casement & Awning Windows
  • Bay & Bow Windows
  • Sliding Windows
  • Hung Windows
  • Shaped Windows

Doors

  • Patio Doors
  • Custom Entry Doors
  • French Doors

Expertise & Expertise

Our team of experienced professionals is highly skilled in:

  • Accurate measurements and estimates.
  • Professional installations by certified installers.
  • Attention to detail and meticulous cleanup.
  • Ongoing customer support and after-sales service.

Experience the QSI Difference

At QSI, we believe in building relationships. We take pride in exceeding expectations and ensuring your complete satisfaction. We offer:

  • Free in-home consultations to discuss your unique needs and preferences.
  • Transparent pricing with no hidden fees.
  • Flexible financing options to fit your budget.
  • A dedicated project manager to oversee your installation.

Contact us today and discover the QSI difference in window and door solutions for your home!

Reviews
Negative: Customers experienced poor customer service, poor communication, and issues with installation and quality of work.

Poor Customer Experience

The majority of customers who have left reviews about their experience with QSI have been extremely dissatisfied with the service they received. Many have reported issues with communication, responsiveness, and the quality of work performed. Some customers have had to wait weeks or even months for issues to be resolved, and have been left feeling frustrated and disappointed.

Problems with Installation

Several customers have reported issues with the installation of their windows and doors. Some have had to wait for extended periods of time for issues to be addressed, and have been left with unfinished or poorly completed work.

Poor Communication

Communication seems to be a major issue with QSI. Customers have reported difficulty getting in touch with the service department, and have been left feeling ignored or dismissed.

Quality of Work

Some customers have reported issues with the quality of the work performed, including sloppy caulking, uneven trim, and marking on the glass.

Warranty and Service

While some customers have reported positive experiences with the warranty and service provided by QSI, the majority have been left feeling disappointed and frustrated with the lack of follow-up and communication.

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