AWNING & CASEMENT WINDOWS IN ST. LOUIS
STL Windows & Doors is a platinum dealer and certified installer of Provia Casement Windows, renowned for its exceptional energy efficiency. These windows, including both casement and awning styles, are designed for optimal airflow and functionality.
Their unique hinge placement and single-sash design make them perfect for hard-to-reach areas like over sinks or cabinets. Casement windows allow for full top-to-bottom ventilation, while awning windows let in fresh air with added protection from the rain.

WHAT OUR CUSTOMERS SAY
Our customers love us for many reasons.

WINDOW BRANDS
Combine awning and casement windows to craft a stunning wall, or mix them with different window types for a unique look. Explore various customization options to enhance your home’s exterior charm, including window hues, ornamental or stained glass, privacy options, tinted panes, and internal grilles. We offer awning and casement windows in these fine brands.
ASPECT
Excellent mid-range window offering high energy efficiency and sturdy construction.

Aeris
Superior vinyl window paired with a wood-clad interior

ENDURE
Stunning energy efficiency with the most options for colors & glass.

WINDOW Configurations
ProVia’s awning & casement windows come in these configurations.
AWNING
1-Lite

AWNING
2 Lite (1/2-1/2)

AWNING
2-Lite (1/3-2/3)

AWNING
2 Lite (1/4-3/4)

CASEMENT
1-Lite Right

CASEMENT
1-Lite Left

CASEMENT
1-Left Fixed

CASEMENT
2 Lite (1/2-1/2)

CASEMENT
3 Lite (1/3-1/3-1/3)

CASEMENT
3 Lite (1/4-1/2-1/4)

DOWNLOAD WINDOW BROCHURES
WINDOW COLORS & FINISHES
You can choose from a variety of different options with these custom replacement windows, from window trim to glass treatment and hardware color. Here’s a sample of our casement window colors and finishes. We will also be sure to bring plenty of product samples to your home in St. Louis, MO.
FOR INSPIRATION
WINDOW GALLERY
FEATURES & Benefits
Explore the standout features and benefits of ProVia awning & casement windows, designed to elevate your home with reduced energy costs, enhanced security, effortless maintenance, and superior sound reduction.
- Each window sash fits perfectly into the frame, with triple weatherstripping significantly reducing air leakage while improving your home’s insulation. If you’re considering how awning windows perform in different home styles, especially single-story layouts, check out our An Awning Windows Guide For Ranch Home Owners for more detailed insights.
- These energy-efficient windows can significantly minimize heat transfer thanks to Low-E glass technology and argon gas fill. They are ENERGY STAR certified, indicating they adhere to the rigorous energy efficiency standards set by the U.S. Environmental Protection Agency.
- This keeps your home cool in the hot months and cozy when it’s cold, all while easing the workload on your HVAC system.
- Triple-pane and double-pane glass options enhance insulation, further reducing energy consumption, making it perfect to applications like dormer window replacement.
- In terms of security, these windows have a durable multi-point locking system engineered to ward off unauthorized entry, giving you a sense of security. The frames are sturdy and fortified to offer additional defense against break-ins.
- Their build includes a polyurethane core and composite endcaps that boost energy efficiency and increase the window’s strength – doubling up as a protective feature.
- An efficient crank mechanism makes for effortless operation while ensuring that the window sash locks firmly, reducing weak spots when shut tight. With their single-hinged sashes, these casement windows deliver convenience and solid safety features that offer extra protection against any potential break-ins.
- The smart design ensures that keeping your windows clean and well-maintained is a breeze.
- Unlike hopper windows that only partially open, these windows open wide with a simple crank so you can reach both sides from the comfort of indoors—no ladder needed for those hard-to-reach outdoor surfaces, especially helpful for anyone in a multi-level home.
- The vinyl material used in these windows is strong against weathering without peeling or losing color, which keeps them looking like new year after year.
- Discover the peace a quieter home can offer with Provia Awning & Casement Windows and its sound reduction technology.
- They are crafted to muffle noise from outside, whether busy streets or buzzing lawnmowers, turning your living area into a tranquil haven.
- Embrace stillness with Endure windows, noted for their superior external noise reduction capabilities.
Provia Window OFFERS STUNNING ENERGY EFFICIENCY
Provia, recognized as 2024’s Most Efficient Energy Star® certified for windows, promises superior quality by meeting strict EPA standards and reducing homeowners’ heating and cooling costs.

- These windows offer exceptional insulation with features like Low-E glass technology and argon gas fill, enhancing comfort in the home while lowering energy expenditure.
- Provia casement windows improve home security with robust multi-point locking systems and durable materials that withstand adverse weather conditions.
- Homeowners have various customization choices, including different window options, frame materials, colors, and hardware finishes to suit any architectural style or personal preference.
- STL Windows & Doors guarantees expert installation services for these leading windows products along with strong warranties, and a commitment to customer satisfaction.
WHY CHOOSE STL WINDOWS & DOORS?
We’re your trusted source in St Louis and pride ourselves on being the go-to experts for high-quality Provia casement window installation. We try to embody a commitment to excellence that homeowners trust. Our dedicated team brings unparalleled skill, ensuring every project meets our stringent standards for installation quality.
While the windows offer excellent ventilation, we strive to create an excellent experience from beginning to end. High ratings and minimal complaints about Provia’s windows show that customer satisfaction is at the core of everything we do. Homeowners can rely on our professional services and feel secure in their choice — because ensuring your peace of mind is part of what we promise.
Expert installation services

Upgrading to stylish casement windows can transform your space, whether in a new build or a recent renovation. They can provide unobstructed views to outside and ideal security inside. Professional installation comes with more than just the promise of energy savings; it guarantees top-notch quality, guaranteeing that each window is a perfect fit and operates smoothly.
Our experienced window installers precisely measure and employ state-of-the-art tools to ensure your chosen window options are installed accurately.
We proudly serve the St. Louis metro and surrounding areas, providing expert installation for window types that enhance curb appeal and deliver expansive views.
We’re a ProVia Platinum Dealer and Certified Installer.
Quality
products

These windows are not just long-lasting; they incorporate advanced weather stripping and multi-point locking systems designed for your peace of mind. Their robust vinyl frames resist warping, chipping, or peeling, maintaining a pristine appearance.
Customization meets quality as ProVia custom windows are made to order for each homeowner’s unique taste and home’s architecture. Whether you’re looking for that modern feel or matching old-world charm with muntins across the glass, you can be sure that these products can blend seamlessly with any new construction or renovation project.
satisfaction
guaranteeD

Quality installation is our top priority; it shines through every casement windows installation in St. Louis. Our promise to you is complete satisfaction with your new windows.
We stand behind our work and products by offering strong 10-year workmanship warranties that guarantee long-lasting performance and enjoyment in your home.
If any issues arise, we provide a simple online process for homeowners to register their warranty or report any product concerns, showing how much we value customer service.
TOP FAQ
Here are some frequently asked questions about these windows. If you have other questions, please get in touch with us!
GRAB A DEAL AND FREE ESTIMATE BELOW
Take the first step towards energy efficiency with Provia Awning & Casement Windows.
STL Windows and Doors is a ProVia Platinum Dealer & Certified Installer. We proudly serve the residential market across Saint Louis, Saint Charles, Jefferson, Franklin & Lincoln counties.


















































