ProVia Windows – Our Most Popular Replacement Window
The brand our customers choose most often is ProVia. ProVia builds every window to order, so your replacement windows are made to the exact size, style, color and glass package your home needs instead of being fitted from a stock size. That custom fit is a big part of why ProVia windows seal well and hold up to Northwest Indiana winters.
We install the full ProVia window lineup, which lets us match almost any home and any budget:
- Endure™ – ProVia’s top-of-the-line vinyl window, with the widest range of custom options and their strongest energy performance.
- Aspect™ – a mid-range vinyl window built much like Endure, with a high-performance glass package that reduces heat loss and interior condensation.
- Aeris™ – wood-clad windows that pair a real cherry, oak or maple interior with a maintenance-free vinyl exterior, for homeowners who want the warmth of wood without the upkeep.
- ecoLite™ – an economy-class white vinyl window, a practical choice for rental properties and budget-conscious whole-home replacements.
The Endure, Aspect and Aeris lines are ENERGY STAR® certified, and every ProVia window we install is backed by the manufacturer’s warranty along with our own installation workmanship.
Not sure which ProVia line is the right fit for your home or your budget? Request a free estimate and we’ll walk you through the options in person.
TRUSTED NWI & SOUTHEAST CHICAGO SUBURBS
REPLACEMENT WINDOWS
Liberty Siding and Windows has been in the window replacement business for over 30 years. We serve homeowners and businesses in the Chicagoland area, and we are fully licensed, bonded, and insured. Our team of experts is factory trained and certified to ensure your windows are correctly installed.
Windows are an essential part of your property’s security and style. When you choose Liberty Siding and Windows, you can be confident that you’re getting the best possible service. Plus, we offer options to fit every budget. Contact us today to schedule a free consultation.
Why Customers Love Our Top-Quality Replacement Windows
Choosing the right replacement windows for window replacement is essential for your comfort and security, not to mention your budget. You will want to select materials that will keep your property safe and last for years. When choosing replacement windows, here are some aspects to keep in mind:
- Customization: At Liberty Siding and Windows, we understand that every home or business is different, and everyone has their unique style. We want to ensure you choose the best windows for you and your aesthetic. Getting custom replacement windows ensures you can get the options you want.
- Lifespan: Our long-lasting windows will protect your property for years to come while looking great. We use only the best and highest-quality materials, so you can count on our products to last.
- Expert Installation: Our experienced installers will ensure your windows are installed correctly and appropriately sealed. Our knowledge of exterior trim and flashing helps us to customize a perfect fit. We want you to be happy with your new windows for years to come.
- Energy Efficiency: Windows that are old or poorly installed can cause damage to your home and your wallet by allowing heat and air to escape, hiking up your energy bill. New replacement windows can help you save energy by keeping heat inside where you need it.
- Budget: We understand that quality is important, but so is your budget. We offer replacement windows from multiple manufacturers and will work with you to find the right solution.
Types of replacement windows we offer
After 30 years of expert installation in Northwest Indiana and Illinois, we’ve installed nearly every type of window you can imagine. The most common styles we work with include:
Non-Painted Black Vinyl Windows & Patio Doors!
Durable, Scratch-Resistant, Solid Black Vinyl Our Extrusion is Black Through and Through
Available in:
- Solid Black Inside and Outside
- Light Oak, Dark Oak, or Cherry Interior Woodgrains/Black Exterior
- White Interior/Black Exterior
Window Styles Include:
- Double Hung Windows
- Picture Windows
- Slider Windows
- Hopper Windows
- Casements
- Awning Windows
- Bay Windows
- Bow Windows
- V-Bay Windows
- Garden Windows
- Patio Doors
Double Hung Windows
Double-hung windows have two moveable sashes that tilt inward, so they are easy to ventilate and easy to clean from inside the house. The sash is the part of the window that surrounds the glass and holds it in place. This is the style we replace most often on Northwest Indiana homes, and it is available made-to-order through ProVia.
- Low-maintenance vinyl that never needs painting or refinishing.
- Reinforced, welded frames and sashes for a solid, secure feel.
- Tamper-resistant locking hardware to help protect against forced entry.
Single Hung Windows
A single-hung window has one moveable bottom sash and a fixed top sash. It gives you the classic look of a double-hung at a lower price point, which makes it a practical choice for rentals, garages and budget-conscious whole-home replacements.
- Secure locking hardware and reinforced frames to help protect against forced entry.
- Color runs all the way through the vinyl, so there is no painting or refinishing.
- Energy-efficient glass packages and sloped sills that channel water away from the frame.
Slider Windows
In a slider window, the sash slides horizontally (left to right) to open or close. We install a variety of sliding windows, including 2-lite and 3-lite configurations, and they work well in wide openings where there is no room for a sash to swing out.
- Low-maintenance sash rollers for years of smooth operation.
- Double- and triple-pane insulated glass options that perform far better than the single-pane windows they usually replace.
- Automatic locking hardware comes standard for added security.
Casement Windows
Casement windows feature a hinge on one side of the sash, and the window is opened or closed using a small hand crank at the bottom of the frame. We often install casement windows in hard-to-reach places where a tilting or sliding sash would not be practical.
- Durable, maintenance-free vinyl that stands up to Northwest Indiana winters.
- A wide selection of colors, finishes and hardware styles.
- Double- and triple-pane insulated glass options for a noticeable improvement over single-pane windows.
Awning Windows
Windows that are hinged along the top and open outward from the bottom are known as awning windows. We install vinyl awning windows in many shapes and styles.
- Multi-chambered frames for added strength and insulation.
- Easy to care for and fade-resistant.
- Adds a distinctive look to a home or business, and works well above doors or in bathrooms and basements.
Picture Windows
Picture windows are non-operable, meaning they’re sealed shut. Often larger than other windows, they offer stunning views combined with considerable energy-efficient features.
- Available with grilles between the glass, triple-pane glass, and a range of exterior colors.
- Precision-welded frames resist warping and twisting.
- Reinforced frames built to support large spans of glass.
Bay & Bow Windows
A bay or bow window is a window that protrudes out from the exterior walls of a home or building. Bay and bow windows are typically made of three sections, with a fixed window in the center and two operable windows on either side. The operable windows can be opened to allow for additional natural light and airflow. The fixed window provides panoramic views and depth to the room. Bay and bow windows are an excellent way to maximize interior space and create a more open feel to a room. A bay or bow replacement is as much a carpentry job as a window job, so we handle the framing, insulation and exterior trim work that goes with it, not just the unit itself.
Special Shaped Windows
Specialty windows are windows that are not a traditional shape and can come in a variety of shapes and styles. Special-shaped windows can add charm and character, enhance curb appeal, add more light to a room, and highlight an architectural feature of your home. Because ProVia builds every window to order, specialty shapes are made to the exact opening rather than forced to fit a stock size. Contact us to explore your options for window replacement with our window experts!
Lang Exterior Windows – Also Available
ProVia is the brand our customers choose most often, but we also install Lang Exterior windows when they are the better fit for a particular home or budget.
Lang windows come standard with:
- Enhanced 30/30 glass
- Warm edged spacers
- Foam filled frames
For greater energy savings ask us about R5 Triple Pane! Upgrade to the most energy efficient glass package available on any window. Introducing the R5 Glass!
- R5 glass has an insulation ration that equals U-value .20.
- R5 glass is ECO-Friendly
- R5 glass is energy efficient
- R5 glass has an R rating of 5 (compared to common Energy Star windows and doors with an R rating of 3)
- R5 glass features
- Triple-Glazed: the insulated glass unit on an R5 window has 3 panes of glass
- Krypton Gas filled between panes: Krypton has significantly better insulating qualities than Argon
- Double Low-E glass: Low-E is on the exterior and interior pane
See our large color selection

Call Liberty Siding and Windows Today for a Free Estimate
We take pride in our workmanship and stand behind our products 100%. When you choose Liberty Siding and Windows, you can be sure you’re getting the best quality products and services available. We are a family-owned and operated company, licensed, bonded, and insured, offering a wide range of services to meet your needs. Contact us today to receive a FREE estimate on your next window project.