Casement Windows
Contemporary styling and everyday convenience combine to deliver clean sightlines and an unobstructed view. Operate them smoothly with a simple turn of the handle—durable multi-point locking hardware comes standard. The sash adjusts to the perfect angle to capture passing breezes, and the casement provides more ventilation area than any other window style. For taller units (over 22 inches), multiple locking points add stability and superior resistance to forced entry, enhancing both security and peace of mind.
All North Star Awning and Casement Windows now feature ULTRASTAR™ co-extruded reinforcements — advanced fiberglass-PVC construction for superior strength, stability, and long-term performance. It resists warping, shrinking, and thermal expansion for smoother operation, greater durability, and lasting energy efficiency.
Explore Northern Performance Windows & Doors’ styles and options to find the perfect fit.
Casement Windows
Our Process
Our sales experts evaluate your home and design goals to recommend the best windows and doors for your budget.
In-Home Consultation
Our installers are full-time employees with years of experience, ensuring each product is installed for optimal performance, comfort and lasting durability.
Professional Installation
From delivery through installation and beyond, our team delivers reliable service, warranty support, and expert guidance to ensure lasting value from your investment.
Unrivalled Support
Glass Options
Upgrade your windows with advanced glass options from North Star. Choose Low-E coatings, argon fills, or triple glazing for better insulation and lower energy costs. Add privacy or tempered glass for function and safety. Whatever your goal—more light, comfort, or efficiency—there’s a glass package to fit your home.
Grille Options
Grilles add character and architectural style to your windows with a variety of design options from traditional to contemporary. Grilles provide a customized look that complements your home’s design while enhancing curb appeal
The Benefits of Choosing NPWD
Excellent Quality Products
Highest Quality Craftsmanship
5 star Quality & Service
Well-Trained Installers
Commitment to Customer Satisfaction
Award Winning Company
Over 30 years of Business
Great Warranty
Window Care & Maintenance Guide
When choosing Northern Performance Windows and Doors for your new windows and doors, proper care and routine maintenance will help keep them looking beautiful and operating smoothly for many years to come.
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Use a mild, non-abrasive glass cleaner or a mixture of heavy-water to vinegar ratio.
Wipe with a soft cloth or microfiber towel.
Avoid razor blades, scrapers, or abrasive pads.
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Clean with mild soap and warm water.
Wipe with a soft cloth or microfiber towel.
Rinse thoroughly and wipe dry.
Do not use harsh chemicals, solvents, or pressure washers.
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Remove screens carefully.
Wash gently with mild soap and water.
Rinse and allow to air dry before reinstalling.
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Vacuum dirt and debris from tracks regularly.
Wipe clean with a damp cloth.
Keep tracks clear for smooth operation.
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Do not force windows open if frozen.
Keep drainage (weep) holes clear.
After severe weather, inspect for damage or water intrusion.