8 Best Window Companies in Douglas, IL (2025 Reviews)

How Installing Energy-Efficient Windows in Douglas Saves You Money

There are several benefits of upgrading to energy-efficient windows. A few reasons you may want to consider making the change are the following:

• Save money on power bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of household energy use. Switching to energy-efficient windows can help lower that number, which helps you save some money on your bills.
• Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 642 pounds per year on average.
• Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to have windows that are outdated, drafty or maybe even damaged in some way. Upgrading your windows could help increase 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.

Estimated Cost of Window Replacement in Douglas

Windows come in varying shapes, purposes and styles, so costs and services will differ considerably 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?

Generally, homeowners in Douglas can anticipate that most replacement window installations will range from $250 to $1,200, with the average cost sitting at around $600. How much it will cost varies based on several factors, such as the location of your home, material, number of windows, size, type and more.

Whether or not you choose energy-efficient windows is another factor that will determine the cost. These will typically cost more than other windows, but on the other hand, you can save about $305 a year on your energy bills in Douglas.

How much your window installation costs will also vary depending on the type of material you choose for the frames. Wood windows are usually the most expensive, though it depends on whether they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.

What Services do Window Installers Offer?

The first step of a replacement is to decide whether you should get a full-frame or pocket installation.

Full-frame installations entail replacing the complete window, including the sill, trim and frame. Full-frame installations are necessary when you want to change the style of your windows or your window has considerable damage. These installations are more involved and will increase the overall cost. A pocket installation entails replacing a window without replacing the frame. This means instead of removing the whole unit and reinstalling it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.

Your window installation company will be able to help you choose what’s best for your needs. In Douglas, the decision will mostly be based on the age of your windows and if there’s any moisture damage. Wood can decay if not maintained properly over the years, so it’s good to have a professional check your frames and window sills.

How We Choose the Best Window Installers in Douglas

EcoWatch differs from most reviewers since we’re examining these companies through a sustainability lens. Along with energy efficiency, we analyzed each installer and assigned rankings using the following methodology:

Service Area

Since this is a guide for Douglas, we only included companies that serve the city. There are other reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in Douglas.

Work Quality

When choosing new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the type of window you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

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

Cost

Cheaper windows certainly don’t mean better windows, but we know many of our readers would like to keep costs as low as 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. That’s why window installation companies that provide 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 a good track record in the industry. Window installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.