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Factory Direct Pricing 0n Replacement Windows
Save Money on Replacement Windows
Canadian-made, energy-efficient, ENERGY STAR® windows at factory-direct prices. Don’t pay more than you need to for quality replacement windows.
Book a Free No Obligation Quote and see the savings for yourself! BBB A+ Rated Canadian Window Company!
Janine Lyn2025-03-14 Kudos to AlphaTech Windows & Doors! After getting 4 quotes, I chose AlphaTech, whose price was almost half that of two of the other quotes. The Ukrainian installers ended up doing an awesome job of putting in my two bay windows, one of which was over 20 feet high, and in only 1 1/2 days! Also, I’m really happy with the quality of the windows, just as Alex promised! I would highly recommend AlphaTech! Marcia Max2025-03-03 Excellent Service! Very satisfied and happy with the installation of door and patio door/window. Installers were respectful and fast working. High standard of workmanship. We recommend this company to others looking for quality workmanship. Good job ! Thank you. DOMAIN MORGAN2025-01-14 Theresa Ikem2024-12-30 Great service and sturdy window. Highly recommend Hong Chai2024-12-12 The new windows were installed a few weeks ago and are beautiful and works great, we love them. Can’t wait for the summer comes to open the window. Igor Vasilets2024-07-30 I recently had the pleasure of working with AlphaTech Windows & Doors in Calgary, and I couldn't be more satisfied with their services. As someone who has collaborated with various windows and doors installation companies in the past, I can confidently say that AlphaTech stands out for its exceptional quality and professionalism. From the initial consultation to the final installation, the entire process was seamless. The team at AlphaTech is highly knowledgeable and skilled, ensuring that every detail was meticulously handled. They provided a wide selection of high-quality windows and doors, catering to both aesthetic and functional needs. What impressed me the most was their commitment to customer satisfaction. They were attentive to my specific requirements, offering customized solutions that perfectly matched my home’s design. The installation crew was punctual, efficient, and left my home spotless after completing the job. The new windows and doors have significantly improved my home's energy efficiency and curb appeal. I highly recommend AlphaTech Windows & Doors to anyone in Calgary looking for top-notch products and exceptional service in the windows and doors industry. Their dedication to excellence truly sets them apart. Aliona Ciortan2024-07-28 I have replaced my windows with AlphaTech Windows & Doors and highly recommend their product and service quality. Natalia Ishmurzina2024-07-23 Replaced 3 sets of French Doors. Amanda was our salesperson, she came out to our home and was great to work with. They delivered ahead of schedule which was awesome. Walter and his crew arrived on time and did a great job with the installation. We LOVE our new doors, no more leaks and the quality is excellent. They did have to come back out for some touch up but they responded immediately and were back here within a couple of days and took care of everything! They look beautiful. Thank you to Walter as well, professional and excellent at installation, he knows exactly what he is doing. V S2024-07-18 They did a great job for me. You do get what you pay for. Everything was timely from the estimate, build of the windows and install. Professional, quality product and clean install. Will recommend to others; glad I chose them.
Windows & Doors Warranty
Reliability for Years: Enjoy a FREE Transferable 25-Year Warranty!
With confidence, we not only offer exceptional window solutions but also absolute peace of mind. When you choose our products, you automatically receive a FREE and transferable 25-year warranty. This means your investment is protected — you and your loved ones will experience comfort and reliability for decades.
TOP-QUALITY
Our commitment to top-quality is unwavering. We employ the latest, most reliable, and high-tech methods and equipment in the production of our windows and doors. This clear focus ensures that every product we deliver meets the highest standards, providing you with windows and doors that stand out in terms of quality, durability, and performance.
ENERGY SAVING
Our windows are designed to be energy-efficient champions. They capture and retain heat energy during the day, minimizing heat loss at night. In the summer, our advanced technology acts as a barrier, preventing hot, humid air from infiltrating your home. The outcome is a noticeable reduction in air conditioning costs during warm seasons and lower heating bills when temperatures drop.
COMFORT
Beyond enhancing the aesthetics of your home, our elegantly styled vinyl windows provide enduring comfort. Precise manufacturing and expert engineering guarantee a reliable source of comfort for decades. Choose from a wide selection of beautifully designed interior and exterior options to fulfill your window and door aspirations, ensuring both style and comfort.

DURABILITY
We prioritize longevity by utilizing premium materials and careful workmanship, all reinforced by our unwavering Zero-Defect commitment. Our windows are crafted to withstand the test of time, ensuring durability that goes beyond expectations.
Our Products
AlphaTech Windows & Doors offers a distinctive blend of high-quality colors and materials, adding elegance and durability to your home. We pay special attention to material selection, aiming for a high standard of quality and longevity. CLICK HERE to view our windows
Materials
We base our products on advanced materials, such as high-quality vinyl. This material ensures unparalleled strength, moisture resistance, and durability. The vinyl profiles we use reflect the latest innovations in the industry, providing reliable protection against the effects of time and varying weather conditions.
Interior view
Multi-chambered frame to strengthen and provide additional stability and improve overall thermal performance
Dual glazed with 1" overall or triple glazed with 1 3/8" overall glazed available
Welded sash with steel reinforcement
Colors
Inspired by the latest design and architectural trends, our windows & doors color palette ranges from modern neutral shades to rich and vibrant tones. Our window systems provide a rich array of colors, emphasizing your home's style. Color consistency is ensured through precision manufacturing and resistance to environmental factors.
Why choose our windows & doors?
AlphaTech Windows & Doors offers a wide range of high-tech window and door systems that ensure comfort, security, and energy savings.
We utilize cutting-edge materials such as energy-efficient glass and smart climate control systems. This not only allows our customers to save on heating but also creates the perfect indoor microclimate.
Our assortment provides a variety of styles, from modern to classic, so every customer can find windows that suit their taste.
It’s our attention to detail that makes the difference in the performance of our windows. Technologically advanced components you may not see are designed to ensure complete reliability for years to come.
The benefits of choosing AlphaTech Windows & Doors are clear – high-quality products, modern technologies, and an individualized approach to each customer.
Our Customer’s Feedback
Why Choose Our Window Solutions?
Energy Efficiency and Savings
Turning to AlphaTech Windows & Doors ensures cutting-edge window systems designed for maximum energy efficiency. This leads to significant savings on electricity bills and creates a comfortable indoor climate year-round.
Access to Government Grants
We guide our clients through available programs and assist in accessing grants that support energy-efficient home improvements. This additional financial benefit enhances the overall value of choosing our products, making your investment even more rewarding.
Product Warranty
All our products undergo demanding quality control, and we provide a warranty for each window. This gives you confidence that your investment is protected, and we stand behind the high performance of our products.
Durability and Quality
Our windows are crafted from high-quality materials, guaranteeing durability and reliability. Choosing us means investing in products that will serve you for decades with minimal maintenance.
Individualized Approach and Style
We provide a wide range of styles and designs, allowing you to choose windows that reflect your unique taste and style. Our individualized approach ensures that each customer receives a solution tailored to their needs and preferences.
Why Choose Our Window Solutions?
Energy Efficiency and Savings
Turning to ATGwindows ensures cutting-edge window systems designed for maximum energy efficiency. This leads to significant savings on electricity bills and creates a comfortable indoor climate year-round.
Access to Government Grants
We guide our clients through available programs and assist in accessing grants that support energy-efficient home improvements. This additional financial benefit enhances the overall value of choosing our products, making your investment even more rewarding.
Product Warranty
All our products undergo demanding quality control, and we provide a warranty for each window. This gives you confidence that your investment is protected, and we stand behind the high performance of our products.
Durability and Quality
Our windows are crafted from high-quality materials, guaranteeing durability and reliability. Choosing us means investing in products that will serve you for decades with minimal maintenance.
Individualized Approach and Style
We provide a wide range of styles and designs, allowing you to choose windows that reflect your unique taste and style. Our individualized approach ensures that each customer receives a solution tailored to their needs and preferences.