20 Best Window Companies in Caseyville, IL (2025 Reviews)

How Installing Energy-Efficient Windows in Caseyville Saves You Money

When you upgrade to energy-efficient windows, you may see a few benefits, such as:

• Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can lower your indirect greenhouse gas emissions by about 12%, according to Energy Star.
• Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
• Protect your investment: When you have an older home, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
• Save money on energy bills: The Department of Energy estimates that heat gained or lost through windows makes up about 25-30% of household energy use. Upgrading to energy-efficient windows can help decrease that number, which helps you save $316 a year on your bills.

Estimated Cost of Window Replacement in Caseyville

Each window replacement company provides various services and has different costs depending on a few factors.

How Much Do New Windows Cost?

The average cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. Costs will vary significantly depending on the quality of your products, your location, the number of windows you need and the current condition of your home. Many window companies also offer replacement door installations and other add-ons like shutters, coating, baths and more. These extra services will increase your overall project costs.

It’s also worth bearing in mind that energy-efficient windows will almost always cost more initially, but Energy Star estimates that switching out the windows on your Caseyville home translates to an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. How much you’ll save by switching to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.

Getting free quotes from multiple providers is the best way to figure out which one will work best for your budget.

What Services do Window Installers Offer?

The first step when considering an installation is to clarify whether you need a full-frame or pocket installation.

Full-frame installations are usually done when you want a new style or your window has a lot of deterioration. With this service, your installers will replace the complete window, including the trim, sill and frame. A pocket installation entails replacing a window without replacing the frame. So, instead of tearing out the whole window and rebuilding it, the contractor will just slide the replacement window (also called a retrofit or insert window) into the frame.

If you’re still trying to decide which type of installation you need, you can consult with your provider and get their recommendation. The choice mostly is influenced by the age of your window frames and if there’s any damage present.

How We Choose the Best Window Installers in Caseyville

The EcoWatch Reviews team is different from other reviewers since we evaluate these companies through a sustainability lens. We’ve decided to evaluate the best window replacement companies in Caseyville mainly based on their energy efficient offerings, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve the Caseyville area so you can find the best window installation company near you.

Work Quality

We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer included in our guide to make sure its contractors are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across most other categories, including professionalism, cost, quality of installation, warranty, quality of parts and more.

Cost

This one is a give-and-take: as with most services, cheap window installers won’t always provide the most quality service. Still, we want to ensure we’re highlighting companies that provide a wide range of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed previously, windows are a hefty investment, so you’ll want to be certain that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Because of Caseyville’s climate, homeowners need to be wary of low efficiency, rot and water damage. We factored in local experience to reflect the ability of Caseyville window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.