20 Best Window Companies in Washington, MO (2025 Reviews)

How Installing Energy-Efficient Windows in Washington Saves You Money

When you upgrade to energy-efficient windows, you may see some benefits, including:

• Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, particularly if you have an older home.
• Save on energy bills: The Department of Energy estimates that heat gained or lost through windows makes up around 25-30% of energy use in your home. Upgrading to energy-efficient windows can help decrease that number, which helps you save some money on your bills.
• 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.
• Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 763 pounds per year on average.

Estimated Cost of Window Replacement in Washington

Windows come in all shapes and sizes, so costs and services will differ remarkably. Here are the typical costs and the primary services that you can find from window installation companies.

How Much Do New Windows Cost?

Generally, Washington homeowners can anticipate their replacement window installations to range from $250 to $1,200. The average cost sits at about $600. How much it will cost varies depending on several factors, like the location of your home, type, number of windows, size, material and more.

With windows, efficiency is one of the most important factors for many homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Washington homeowners $374+ a year after replacing single-pane windows.

The cost of your window installation will also vary depending on the kind of window material you choose for the frames. Wood windows are typically the most expensive, but it depends on whether they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

In regard to window installations, in general there are two kinds that your installer will have: full-frame and pocket installations.

Full-frame installations are usually recommended when you want to change the style of your windows or your window has significant rot. With this service, your installers will replace the full window, including the frame, trim and sill. Pocket installations are simpler and won’t carry as large a bill because they entail merely replacing the window within its existing frame. But if the frame has any damage or deterioration, you should opt for a full-frame installation instead.

If you’re hiring a reputable window installation company, your company will be able to recommend the best type for your project. In Washington, the decision will mostly be influenced by the efficiency of your home and the age of your existing frames.

How We Choose the Best Window Installers in Washington

The EcoWatch Reviews team is different from most reviewers since we assess these companies through a sustainability lens. Along with energy efficiency, we assessed each installer and ranked them based on the following methodology:

Service Area

Because this is a guide for Washington, we paid more attention to companies that cover the city. There are certainly other reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in Washington.

Work Quality

We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each company on this list to ensure its contractors are well-qualified and that the company has gotten plenty 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 positive feedback about their service from a certain window installation company, you won’t see it featured on EcoWatch.

Cost

This one is a give-and-take: as with most services, cheap window companies are not going to provide the most quality service. Still, we want to ensure we’re highlighting companies that provide a variety of price and financing options so they’re accessible to most homeowners.

Warranty

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

Years of Experience

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