25 Best Window Replacement Companies in St Louis, MO (2023 Reviews)
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How Installing Energy-Efficient Windows in St Louis Saves You Money

By upgrading to energy-efficient windows, you can benefit in several ways, such as:

• Decrease your carbon footprint: By using less energy once you switch to energy-efficient windows, you'll also be decreasing your carbon dioxide emissions by about 12%, according to Energy Star.
• Save money on power 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 reduce that amount, which helps you save some money on your bills.
• Protect your investment: Upgrading your windows is an important part of maintaining your property and its value, especially if your home is on the older side.
• Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in St Louis

Each window replacement company offers various services and has varying price points depending on several factors.

How Much Do New Windows Cost?

According to our market research, the typical cost of replacing a single window is around $600. However, window replacement costs can range from $200 to $1,200 a window. How much it will cost is based on several factors, such as the location of your home, number of windows, type, size, material and more.

It's also worth bearing in mind that energy-efficient windows will almost always cost more upfront, but Energy Star predicts that upgrading the windows on your St Louis home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each 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.

Another factor that influences the total cost is the material you select for your frame. Aluminum frames are usually the least pricey and are sturdy and light, but they offer poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.

What Services do Window Installers Offer?

There are typically two kinds of window replacement services: full-frame and pocket installations.

A full-frame installation is a total window replacement. This service involves taking out the old window, the sill, and the exterior and interior trim. It also involves other materials, including insulation and drip edges, which increase the total cost of the project. It's also worth noting that it's not uncommon for homeowners to have to touch up the paint around the window after a full-frame installation. A pocket installation means replacing a window without taking out the complete frame, which tends to be less expensive than a full-frame installation.

Your window installation company should be able to help you figure out what's best for your needs. In St Louis, the decision will mostly be based on how old your windows are and if there's any damage. Wood can decay if it's not maintained properly over the years, so it's a good idea to have a professional assess your frames and window sills.

How We Choose the Best Window Installers in St Louis

In our search to find the most reliable, eco-friendly window installers in St Louis, the EcoWatch Reviews team evaluated dozens of companies before landing on these. We've evaluated the best window replacement companies in St Louis primarily based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

This one is pretty 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 certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer featured in our guide to make sure its technicians are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet very important review factor is customer feedback. 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 want to keep costs as low as possible. When analyzing the prices of providers, we gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

Protecting your investment in new windows is important. That's why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

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