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Retrofit Window Replacement Project in Calgary

NorthShield completed this retrofit window replacement project in Calgary on an older home built roughly 80 years ago. The installation method preserved the existing interior finishing while upgrading the home with Energy Star double-glass windows, Low-E glass packages, and maintenance-free aluminum flashing outside.

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Retrofit Installation for an Older Calgary Home

This Calgary project involved an older home where maintaining the existing interior window finishing was important. NorthShield used a retrofit installation method so the new windows could improve comfort and performance without removing the interior trim that matched the home.

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Energy Star Double Glass with Exposure-Specific Low-E

All windows installed for this home were Energy Star products made by the NorthShield team. Low-E 180 was used at the back of the house for strong energy efficiency, while Low-E 272 was selected for the sun-exposed front windows to help block UV and reduce overheating during warm Calgary afternoons. Homeowners can learn more in our window energy efficiency guide.

kitchen window above sink interior

Aluminum Flashing and One-Day Installation

The exterior framing was covered with new aluminum flashing to create a tighter seal and reduce future maintenance. This project included single-hung windows, single sliders, one awning window, and a casement window. A crew of three arrived around 9:00 AM and completed the full installation by 5:00 PM. NorthShield provides professional window and door replacement in Calgary for older homes, renovations, and full-home upgrades.

This Calgary retrofit window project balanced efficiency, comfort, and the character of an older home. The combination of Energy Star double-glass windows, selected Low-E coatings, and exterior aluminum flashing helped modernize the windows while keeping the interior finishing intact. For additional style options, visit our window replacement options.

Project Gallery

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rear double window exterior.webp
two white windows living room interior.webp
turquoise room double window interior.webp
turquoise room single window interior.webp
turquoise room casement window interior.webp
kitchen window above sink interior
office window interior
bedroom window interior
bedroom tall window interior
childrens room window interior
open entry door window interior
brown window exterior side wall
brown double window side exterior
brown window side exterior
white window siding exterior
side home window exterior
rear door window exterior
exterior window trim close up
interior window trim close up

What Our Customers Say

Great communication throughout the entire process. No surprises.
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John
Fantastic job replacing our old windows. NorthShield's team was efficient and professional.
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Rachel
Used their services for a second time to replace additional windows. Very happy with the results. Was provided with a detailed overview of the product and installation process. Would recommend to those looking at getting their windows replaced.
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Vladimir

NorthShield proudly services Calgary and nearby communities with custom window and door replacement for older homes, family homes, and renovation projects. From retrofit installations to full-frame replacements, our team helps homeowners choose practical products that improve comfort, efficiency, and curb appeal.