20 Best Window Companies in Granite City, IL (2025 Reviews)

How Installing Energy-Efficient Windows in Granite City Saves You Money

Energy-efficient windows can benefit you in several ways. Here are a few reasons you may want to think about making the switch:

• Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Updating your windows can improve the insulation in your home and also help raise the value of your property if you decide to sell.
• Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
• Save on power bills: Upgrading to energy-efficient windows lowers your energy bills by about 12% because you need less energy.
• Decrease your carbon footprint: In Granite City, you can cut your indirect greenhouse gas emissions by about 642 pounds per year when you switch to energy-efficient windows.

Estimated Cost of Window Replacement in Granite City

Windows come in various shapes, styles and purposes, so costs and services will vary greatly depending on your project. Below, we go over the typical cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

Although the typical cost to install a single window is about $600, it can range from $200 to $1,200. This is because the cost of window installations depend on a variety of factors specific to your home, including the size, material and number of windows you need to replace, as well as where your property is located.

Whether or not you want energy-efficient windows is another factor that will affect the cost. These will usually cost more than other windows, but on the other hand, you can save about $313 a year on your energy bills in Granite City.

We recommend requesting free quotes from several window installers to find the right windows and the company that works best for your budget.

What Services do Window Installers Offer?

The first question to ask yourself when planning a window installation is: Do you want a full-frame installation or a pocket installation?

Full-frame installations require replacing the full window — the sill, frame, trim and all. These are most common when you want a new style for your windows or when it has a great amount of rot or deterioration. Full-frame installations are more involved and will increase overall costs. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are on the simpler end and won’t carry as large a bill, but you can’t do this kind of installment if you have any pre-existing rot or water damage.

If you’re still trying to decide which kind of installation you need, you can consult with your installer and get their advice. The decision mostly depends on how old the frames are and if there’s any damage present.

How We Choose the Best Window Installers in Granite City

In our hunt to make your home improvements easier and more eco-friendly in Granite City, EcoWatch chose the above companies as the best window installation companies in the city. We’ve evaluated the top window replacement companies in Granite City mostly based on their energy efficient offerings, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows have been shown to reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

Because this is a guide for Granite City, we gave more points to companies that cover the city. There are other reputable providers that didn’t make the list because of the low odds that they would serve the average homeowner in Granite City.

Work Quality

We’re certain that you’re looking for professionals who do a great job installing windows. We’ve vetted each company included on this list to make sure its technicians are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If most customers don’t have good things to say about their experience with a certain installer, you won’t see it featured on EcoWatch.

Cost

Cheaper windows don’t necessarily mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

Protecting your investment in new windows is important. For that reason, window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

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