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ProVia is the window we sell and install the most. You buy from us, and we place the order with the factory – every ProVia window is built to the exact measurements we take at your home, in the style, color and glass package you pick, instead of your openings being fitted to a stock size off a shelf. That made-to-measure 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. Click any series name below to open ProVia’s brochure for that line:
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.
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.
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:
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:

Durable, Scratch-Resistant, Solid Black Vinyl Our Extrusion is Black Through and Through
Available in:
Window Styles Include:

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 we order it from ProVia built to the exact size of your opening.

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.

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.

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.

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.

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.

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.

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 we have every ProVia window built 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!
ProVia is the window we sell and install most, but we also install Lang Exterior windows when they are the better fit for a particular home or budget.

We replace windows throughout Lake and Porter County. These pages cover the brands, window styles and recent projects in each town:
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.
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<h4><a class=”accordion-section-title active” href=”#accordion-1″>How long does the installation process take?</a></h4>
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Many factors play into this, including the size of the project and the type of product being installed. An average house has 10-25 windows of all shapes, sizes, and compositions, and a large window replacement job may take 2-5 days. Most door installations, on the other hand, can be completed same-day. Give us a call to discuss the specifics of your project and get a more accurate timeline.
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<h4><a class=”accordion-section-title” href=”#accordion-2″>Do you offer financing?</a></h4>
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Yes, we offer financing. <a href=”https://libertysidingwindows.com/financing/”>Click here to learn more</a> about our financing program!
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<h4><a class=”accordion-section-title” href=”#accordion-3″>Do you provide a warranty for the work done?</a></h4>
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Yes! Each product we use comes with a factory warranty. We also guarantee the work that we do with our lifetime installation warranty!
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<h4><a class=”accordion-section-title” href=”#accordion-4″>Can we remain in our home during window installation and siding projects?</a></h4>
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Absolutely! We work quickly and efficiently to upgrade your home with as little disruption to you as possible. Residents often choose to stay home during the installation process if possible, to answer any potential questions, but it is not necessary.
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<div class=”faqs-btn”><a href=”https://libertysidingwindows.com/faqs/”>view more</a></div>
We have a wide variety of windows to fit new and existing homes. Our windows come with a full warranty to give you peace of mind at an affordable cost.
We offer a great selection of siding for all house styles. We offer composite cladding or vinyl siding for a long-term solution meant to last for many years to come.
We provide professional roofing solutions for new and existing homes. From full roof replacements to repairs, our high-quality materials and expert installation ensure long-lasting protection against the elements — all backed by a strong warranty for added peace of mind.
Soffit is the underside of a roof overhang or eave, while fascia is used to enclose a roof’s perimeter. They both help shield the roofing and interior of a home from harsh weather.
We have excellent financing options available, no matter your credit score.
Give us a call or fill out our form.