Business Details
50+ Years
experience
Trusted Window & Door Solutions in Toronto
Founded in 1961 by John Christopoulos, GEM Windows & Doors has established itself as Toronto's oldest and most trusted window and door company. Our family-owned business has grown from a small showroom at Dundas & Brock to a state-of-the-art 5,000-square-foot facility at 1590 The Queensway, serving the Greater Toronto Area and Southern Ontario. With over six decades of experience, we specialize in energy-efficient windows, doors, awnings, pergolas, and garage doors, combining industry expertise with personalized service. Our team of seasoned professionals listens carefully to client needs, offering tailored solutions that enhance comfort, security, and property value. Recognized as ENERGY STAR Retailer of the Year in 2018 and 2019, we maintain rigorous quality standards through partnerships with top manufacturers and Window Wise Certified Installations.Our commitment to innovation is evident in our diverse product lines, including carbon steel, fiberglass, and aluminum-clad options, all backed by a 5-year labour warranty. As industry leaders, we actively contribute to sustainability through energy-efficient products, material recycling, and LEED-certified practices. Our HomeStars Best of Award-winning team prioritizes customer satisfaction, offering a price-match guarantee and financing options to ensure accessible, high-value solutions. From initial consultation to final installation, GEM's dedicated crews deliver precision and care, solidifying our reputation as a reliable partner for residential and commercial projects.
Services
Windows
Doors
Awnings
Pergolas
Garage Doors
Carbon Steel Windows
Sliding Doors
Swing Doors
Fiberglass Doors
Aluminum Windows
Details
- Year established: 1961
Highlights and features
- We offer over 60 years of expertise in energy-efficient window and door solutions.
- Our team provides personalized service tailored to each project's needs.
- We are ENERGY STAR Retailer of the Year awardees for 2018 and 2019.
- All installations come with a 5-year labour warranty.
- We are a member of Fenestration Canada and Window Wise Certified.
Associations and certifications
- ENERGY STAR
- Fenestration Canada
- Window Wise Certified Installation Program
What people say
Incredible service
Outstanding experience
Lifelong customer bond
Excellent customer service
Committed to finding solutions
Services
Carbon Steel Windows
GEM's carbon steel windows combine sleek, minimalist design with exceptional durability. These thermally broken frames offer slim sightlines without compromising structural integrity, ideal for large openings. Available in true or simulated divided lites, they enhance natural light while maintaining energy efficiency. Customizable hardware and patterns allow tailored aesthetics for modern or traditional homes.
Sliding Doors
Our sliding doors provide elegant space-saving solutions for interior and exterior applications. Featuring customizable glass options and divided lite patterns, these doors maximize views while maintaining functionality. Available in multiple configurations, they seamlessly connect indoor and outdoor spaces or divide rooms without obstructing light flow, combining style with practical accessibility.
Swing Doors
GEM's carbon steel swing doors offer luxurious security and aesthetic appeal for main entries or interior spaces. With hollow tube or German extruded profiles, these doors feature customizable glass options and hardware. Designed to enhance curb appeal while allowing natural light penetration, they provide durable, stylish solutions for residential and commercial properties.
Fiberglass Doors
Our fiberglass doors deliver superior strength and thermal performance with customizable designs. Resistant to warping and rotting, these doors mimic wood aesthetics without maintenance concerns. Available in various finishes and security features, they provide long-lasting durability and energy efficiency for both residential and commercial applications.
Window Coverings
GEM offers a comprehensive selection of window coverings designed to complement our energy-efficient windows. From modern roller shades to classic wood blinds, our solutions enhance privacy, light control, and interior decor. All products are carefully curated for quality and functionality, ensuring seamless integration with our window systems.
People
Jim
Customer Service Representative
Jim is a dedicated team member known for exceptional problem-solving skills and personalized service. His commitment to finding tailored solutions has earned multiple customer commendations, including creating lifelong client relationships through attentive care and technical expertise.
John Christopoulos
Founder
John Christopoulos established GEM Windows & Doors in 1961, pioneering energy-efficient window solutions in Toronto. His vision for quality and customer-centric service laid the foundation for the company's 60+ year legacy as the GTA's leading window and door provider.
Questions
What products does GEM Windows & Doors offer?
We provide windows, doors, awnings, pergolas, garage doors, and window coverings. Our selection includes carbon steel, fiberglass, aluminum, and vinyl options for residential and commercial properties.
Do you offer installation services?
Yes, we provide professional installation with experienced crews. All installations come with a 5-year labour warranty and are performed by Window Wise Certified technicians.
Are your products energy-efficient?
Yes, we specialize in ENERGY STAR-certified products that reduce energy costs and CO2 emissions. Our window and door systems meet strict efficiency standards for optimal thermal performance.
What financing options are available?
We offer financing on all installed contracts through the Greener Homes Loan program, providing up to $40,000 interest-free over 10 years for energy-efficient upgrades.
What areas do you serve?
We primarily serve the Greater Toronto Area and Southern Ontario, providing showroom consultations and on-site services for residential and commercial clients.
Do you provide free quotes?
Yes, we offer free general estimates for residential homes through onsite visits or showroom consultations, ensuring customized solutions tailored to your project requirements.
