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Rated Excellent and Verified on HomeStars

Expert Windows and Door Installation in Toronto

Q: Do you offer free window and door installation estimates in Toronto?

Yes, GAK Windows and Doors provides free on-site estimates for window and door installation projects across Toronto and the GTA. During the estimate, our team evaluates your current windows or doors, discusses energy-efficient and high-quality options, and recommends the best solutions for your home or business. Every quote is transparent, detailed, and customized to your property’s needs. By offering clear pricing and expert guidance upfront, homeowners and commercial clients can confidently plan their renovation or replacement projects.

Q: Do you provide 24/7 emergency glass and door repair services in Toronto?

Yes, GAK Windows and Doors offers fast, 24/7 emergency glass repair and door replacement services throughout Toronto and the Greater Toronto Area. Whether it’s a broken window, shattered storefront glass, or damaged entry door, our emergency team responds quickly to secure your property and prevent further damage. Our technicians arrive fully equipped to handle repairs on-site whenever possible, ensuring safety and efficiency. This reliable service is ideal for homeowners, condo managers, and businesses who need immediate solutions to protect their property.

Q: Do you serve both residential and commercial clients in Toronto?

Yes, GAK Windows and Doors provides professional window and door installation, replacement, and repair services for both homes and businesses in Toronto and surrounding areas. We handle everything from single-window replacements to full-scale commercial projects, including storefront glazing, security doors, and high-security bulletproof or fireproof glass. Each installation is designed to meet strict standards for safety, energy efficiency, and aesthetics. Whether you are a homeowner or business owner, we deliver high-quality results that enhance security, comfort, and property value.

Get your free quote now

WSIB Covered | Insured | 15+ Years of Experience

Rated Excellent on Google (5.0 of 5.0)

Trusted Glass Services Across Toronto and the GTA

Explore GAK Glass’s customer reviews and third-party business profiles to learn more about the reputation we have built through dependable glass services, precise workmanship, and professional customer care across Toronto and the GTA.

Professional Window and Door Contractors in Toronto

GAK Windows and Doors is a trusted Toronto company dedicated to enhancing homes and businesses through expert window and door solutions. Our skilled team provides installation, repair, and replacement services designed to meet modern energy, security, and style standards.

We are fully insured, highly rated, and committed to delivering reliable service that exceeds expectations. Every project is handled with care, professionalism, and a focus on long-term performance and aesthetic appeal.

Fully insured and WSIB covered
Highly rated on Google
Free in-home estimates
Energy-efficient window options

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Our Windows and Doors Services in Toronto

We provide complete window and door solutions for homes and businesses across Toronto.

Residential Windows

Energy-efficient and stylish window installation and replacement for Toronto homes, including vinyl, aluminum, and custom options.

Residential Doors

Front, patio, and garden door installation that enhances security, style, and energy efficiency.

Emergency Glass Repair

24/7 rapid response for broken or cracked glass, protecting your property and restoring safety.

Commercial Windows and Doors

Custom commercial glazing, storefront windows, and durable doors designed for high-traffic areas.

Security Doors

European-engineered security doors for residential and commercial properties, fireproof, soundproof, and burglar-resistant.

High-Security Glass

Bulletproof, fireproof, and impact-resistant glass for maximum safety without compromising aesthetics.

Window Crank Replacement

Fast, affordable replacement of damaged or worn-out window cranks and hardware for smooth operation

      EXCELLENT  
   Based on 15 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Rhiane M 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have been working with GAK Windows & Doors for about a year and have nothing but good things to say. The owner, Giannis has been so easy to work with. He is there within a day or two whenever I call him. We completed a major weatherstripping replacement project which required entering over 130 units. Every single resident complimented Giannis and his team on their efficiency and courtesy. I will happily recommend GAK to anyone looking for window/door services.
  
 
      Posted on Google  
   
   LPI EQ1 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great professional services so far. Keep up the good work.
  
 
      Posted on Google  
   
   Aaron Ma 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great company to work with.  Quick respond and turn around time.  Knowledgeable staff with excellent workmanship.
  
 
      Posted on Google  
   
   Parveen Sharma 
 
 
 
 Trustindex verifies that the original source of the review is Google. I’m the kind of person who is very particular about the quality and efficiency of the work I get done, as I have worked with many repair and renovation companies over the years. I last assigned a few jobs to GAK Windows and Doors which were all done flawlessly. The owner, Mr. Giannis, is highly skilled, friendly, and sticks by his words and workmanship. GAK Windows and Doors changed the windows in my old sunroom and brought the entire room to life like new! The whole job was done very quickly and efficiently, with not a single thing out of place. Mr. Giannis has provided me with quality work and excellent service for every job he’s done for me. I wholeheartedly recommend him for any glass and window replacement work one may require!
  
 
      Posted on Google  
   
   Dorian Tabaku 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great company to work with ! They replaced my windows and doors within four weeks as promised. Highly recommended 👍
  
 
      Posted on Google  
   
   Mauricio Ferreira 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing service,fast and reliable and price is right.    ps (very friendly  workers)
  
 
      Posted on Google  
   
   David Froud 
 
 
 
 Trustindex verifies that the original source of the review is Google. Courteous, on time, good communication, top notch
  
 
      Posted on Google  
   
   Joel Dekter 
 
 
 
 Trustindex verifies that the original source of the review is Google. Gak Windows and Doors installed my back window and did an excellent job! Their team is very easy to work with and responsive. I would highly recommend them.
  
 
      Posted on Google  
   
   Ari Doksani 
 
 
 
 Trustindex verifies that the original source of the review is Google. It was a very pleasant experience, the materials were high quality and their service very responsive and professional. 10/10 would recommend

Why Choose GAK Windows and Doors in Toronto

GAK Windows and Doors is trusted across Toronto for professional, reliable service. We combine experience, premium materials, and customer-focused solutions to deliver lasting results.

Fully Insured & WSIB Covered

Protecting your home and giving peace of mind.

Expert Installation & Quality Materials

Every project meets high performance and energy standards.

Customer Satisfaction Guaranteed

Transparent communication and reliable support for every job.

Experienced window and door specialists serving Toronto

Our team has years of hands-on experience installing and repairing windows and doors across Toronto. We ensure every project is completed efficiently, with precision measurements, quality materials, and attention to detail that enhances safety, comfort, and style.

Window and door solutions for varied Toronto properties

Toronto properties range from compact condos and older houses to storefronts, offices, and mixed-use buildings. Each type of property may require a different balance of daylight, ventilation, visibility, access, and privacy.

Considering the building’s layout helps windows, doors, security features, and glass elements feel better suited to the space. The result is a more practical relationship between the interior, exterior, entrances, and surrounding property.

About us

Our customers say we are the best window and door experts in Toronto

“I recently had a great experience with Gak Glass company. They replaced a broken window for me, and everything went smoothly from start to finish. Their team was professional, arrived on time, and completed the job efficiently. I highly recommend their services for anyone in need of glass replacement.”
Argita ShehajEtobicoke

“Great company to work with !
They replaced my windows and doors within four weeks as promised.
Highly recommended 👍 …”
Maria G.North York

“Outstanding service with top-notch glass and door products. Quick response, professional installation, and excellent customer support make this company a standout choice. Highly recommended for quality and efficiency.”
Dario D.Midtown Toronto

How it works

Schedule your free estimate

Our experts assess your property and provide a clear, detailed quote.

Choose Your Style and Materials

Select from a wide range of windows, doors, and hardware to match your home or business.

Enjoy Professional Installation

Our team installs your windows and doors with precision, leaving your property clean and secure.

How much does window and door installation cost in Toronto?

The cost of window and door installation depends on size, material, and complexity. On average, homeowners and businesses in Toronto spend between $500 and $5,000 per unit, including labor and materials.

We provide clear, upfront estimates with no hidden fees. Every project includes proper removal of old fixtures, professional installation, cleanup, and a final quality inspection to ensure satisfaction and long-term performance.

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Upgrade Your Home or Business Today

Request a Free Quote from GAK Windows and Doors

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Ready to Get Started?

High-Quality Windows and Doors Installation in Toronto

Every installation by GAK Windows and Doors combines design, durability, and energy efficiency. We work with trusted manufacturers to provide high-performance solutions that meet Toronto’s climate demands.

Our team ensures proper sealing, alignment, and finishing for every window and door. Each project is backed by warranties and professional support, giving our customers peace of mind and a long-lasting investment.

About us

Main Benefits of Professional Window and Door Installation in Toronto

Energy Efficiency

Reduce heating and cooling costs with insulated, weather-tight systems.

Enhanced Comfort

Eliminate drafts and maintain consistent indoor temperatures year-round.

Improved Security

Reinforced frames and advanced locks protect your home or business.

Curb Appeal & Style

Modern and stylish designs enhance property value and aesthetics.

Our Completed Window and Door Projects in Toronto

Common Window and Door Problems GAK Solves in Toronto

We help Toronto homeowners and businesses overcome common window and door issues, improving comfort, safety, and appearance.

Drafts & Energy Loss

Old or damaged windows allow heat to escape, increasing bills.

Broken or Cracked Glass

Accidental damage or storms require fast, professional repair.

Poor Security

Aging doors and windows may be vulnerable to break-ins.

Outdated Appearance

Replace old designs with modern, stylish solutions that enhance curb appeal.

Trusted Window and Door Experts Near You in Toronto

GAK Windows and Doors proudly serves Toronto and the Greater Toronto Area, including:

From our Blog

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Door Upgrades Before Late Summer Storms Help Toronto Homes Stay Safer and More Comfortable

August 15, 2026

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July 15, 2026

Security Doors, Alarms & Cameras: Building a Stronger Home Security Plan in Toronto & the GTA

July 12, 2026

A Practical Guide to window crank replacement in Toronto

June 4, 2026

Reducing Glass Breakage Risks with high-security glass in Toronto

May 15, 2026

Why April Is the Best Time to Service commercial windows and doors in Toronto

April 15, 2026

Frequently Asked Questions

Do you offer free window and door installation estimates in Toronto?

Yes, GAK Windows and Doors provides free on-site estimates for window and door installation projects across Toronto and the GTA. During the estimate, our team evaluates your current windows or doors, discusses energy-efficient and high-quality options, and recommends the best solutions for your home or business. Every quote is transparent, detailed, and customized to your property’s needs. By offering clear pricing and expert guidance upfront, homeowners and commercial clients can confidently plan their renovation or replacement projects.

Are your window and door installers fully insured in Toronto?

Absolutely. All of our installers at GAK Windows and Doors are fully insured and WSIB-covered, providing protection for both our team and your property during window and door installations or repairs. Our trained professionals follow strict safety protocols to ensure a smooth and secure service experience. From residential window replacements to commercial storefront installations, we prioritize safety, precision, and quality workmanship. This insurance coverage gives Toronto homeowners and business owners peace of mind during every project.

What types of residential and commercial windows and doors do you install in Toronto?

We install a wide range of high-quality residential and commercial windows and doors in Toronto, including energy-efficient vinyl and aluminum windows, patio and entry doors, French and garden doors, European security doors, and bulletproof or fireproof glass systems. Each product is carefully selected and installed to enhance energy efficiency, security, and curb appeal for homes and businesses alike. Our team also handles custom fittings and replacement of outdated or damaged hardware. No matter the style or size, we ensure every installation improves comfort, safety, and property value.

Do you provide 24/7 emergency glass and door repair services in Toronto?

Yes, GAK Windows and Doors offers fast, 24/7 emergency glass repair and door replacement services throughout Toronto and the Greater Toronto Area. Whether it’s a broken window, shattered storefront glass, or damaged entry door, our emergency team responds quickly to secure your property and prevent further damage. Our technicians arrive fully equipped to handle repairs on-site whenever possible, ensuring safety and efficiency. This reliable service is ideal for homeowners, condo managers, and businesses who need immediate solutions to protect their property.

Do you serve both residential and commercial clients in Toronto?

Yes, GAK Windows and Doors provides professional window and door installation, replacement, and repair services for both homes and businesses in Toronto and surrounding areas. We handle everything from single-window replacements to full-scale commercial projects, including storefront glazing, security doors, and high-security bulletproof or fireproof glass. Each installation is designed to meet strict standards for safety, energy efficiency, and aesthetics. Whether you are a homeowner or business owner, we deliver high-quality results that enhance security, comfort, and property value.