Our Industry-Leading Vertical Casement Windows
For homeowners seeking casement and awning windows installation in Mankato, our replacements deliver industry-leading quality, durability, and value at a reasonable price.
Our casement windows open vertically to let in a generous amount of air and natural light, and they are available in a range of configurations including single, double, triple, and quadruple sashes. They feature strong mechanics and heavy-duty hinges to ensure years of maintenance-free operation. Each unit includes a mechanical crank system that opens to a full 90-degree angle, plus a multipoint locking system that keeps your home safe, secure, and well-ventilated.


Or Try Horizontal Awning Windows Instead
Our horizontal awning windows function similarly to casement windows, opening from the top or bottom using strong hinges for reliable, smooth operation. Awning windows are a smart upgrade for any home; they offer all the benefits of casement windows and, depending on placement, can serve as the ideal passthrough window for your next outdoor gathering. Homeowners looking for awning windows near me will find our selection covers everything from standard sizes to luxury awning window designs that elevate your home’s curb appeal.
Where Do Awning and Casement Windows Work Well?
Anywhere you want more natural light or better ventilation, casement windows and awning windows are the ideal choice especially for confined spaces. Think about how much simpler it would be to open a window above the kitchen sink, in a bay or bow window, or in a narrow hallway. Even in tight areas, the single crank handle makes opening and closing effortless. Our awning windows are particularly useful on rainy days, allowing fresh air in while the angled sash keeps water out.
Our superior casement and awning windows installation in Mankato solutions are nearly maintenance-free and built to withstand Southern Minnesota’s harsh weather conditions. Made from the highest-grade weather-resistant vinyl, these windows won’t need painting and will never chip, crack, or peel.


Great Features for Our Casement and Awning Windows?
- Our triple-barrier weather-stripping offers excellent protection in all weather conditions.
- Our energy-efficient design helps you save money while maintaining year-round comfort in your home.
- Even on wet, rainy days, our awning windows let you enjoy fresh air and great airflow without water intrusion.
- A Limited Lifetime Warranty is offered with every window we sell.
At The Window Source of Mankato, we take pride in delivering premium casement and awning windows installation in Mankato that combines beauty, performance, and lasting value for every home.
Call The Window Source Today For A Free Estimate








Frequently Asked Questions
What is casement and awning windows installation in Mankato?
It’s the process of replacing your existing windows with new casement or awning units, professionally measured, custom-fit, and installed by our team for a weather-tight, secure finish.
What is the difference between casement and awning windows?
Casement windows open vertically on side hinges using a crank. Awning windows are horizontal and open from the top or bottom, making them ideal for ventilation even during light rain.
Can awning windows open 90 degrees like casement windows?
Our casement windows open to a full 90-degree angle for maximum airflow. Awning windows open outward at an angle, which directs fresh air in while deflecting rain away.
Are casement and awning windows energy efficient?
Yes. Both window styles feature energy-efficient glass options, multi-point locking seals, and triple-barrier weather-stripping that help reduce heating and cooling costs throughout the year.
Do casement and awning windows require a lot of maintenance?
No. Our vinyl casement and awning windows never need painting and resist chipping, cracking, and peeling making them a low-maintenance, long-lasting choice for any Minnesota home.