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

How Installing Energy-Efficient Windows in Grant Saves You Money

By switching to energy-efficient windows, you can take advantage of several benefits, including:

• Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
• Save on electricity bills: Once you install energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.
• Reduce your carbon footprint: By using less energy after you switch to energy-efficient windows, you’ll also be reducing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
• Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Grant

Windows come in varying styles, purposes and shapes, so costs and services will vary greatly based on your project. Below, we describe the average cost and services that you’ll find from window replacement companies.

How Much Do New Windows Cost?

According to our research, the national average cost of installing a single window is about $600. However, window replacement costs can range from $200 to $1,200 for each window. Costs will vary significantly depending on the current condition of your home, your location, the quality of your products and the number of windows you need. A lot of window companies also offer door installations and other add-ons like shutters, coating, baths and more. These extra services will increase your overall project costs.

It’s important to bear in mind that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Grant homeowners $298+ a year when replacing single-pane windows.

We advise getting free quotes from several window installation companies to find the right windows and the company that works best for your budget.

What Services do Window Installers Offer?

Generally, there are two types of window replacement services you can get: full-frame and pocket installations.

Full-frame installations involve replacing the total window, including the trim, sill and frame. You most likely need a full-frame installation when you want a new style or your window has significant deterioration. These installations are more involved and will raise the total cost. A pocket installation entails installing a new window without replacing the frame. This means instead of taking out the whole unit and reinstalling it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.

If you’re still debating which kind of installation you should get, you can consult with your installer and get their advice. The choice mostly depends on how old the frames are and if there’s any damage.

How We Choose the Best Window Installers in Grant

In our hunt to find the most reliable, eco-friendly window installers in Grant, EcoWatch assessed dozens of companies before settling on these. We’ve decided to review the top window replacement companies in Grant primarily based on their energy efficient offerings, as it’s what’s best for the environment and for you as a homeowner. Energy Star certified windows can reduce 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 self-explanatory, but we’ve chosen to highlight window installation companies that serve a wide variety of states and cities so you can find a quality window installation company near you.

Work Quality

We’re willing to bet that you’re looking for a company to do a great job installing windows. We’ve vetted each company in our guide to ensure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.

Customer Reviews

Customer feedback is another very important review factor. If the majority of customers don’t have good feedback about their service from a certain company, you won’t see it featured on EcoWatch.

Cost

Cheaper windows certainly don’t mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing providers’ prices, 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 to many homeowners. For that reason, window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have been in the industry for a while. Window installers that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.