24 Best Window Replacement Companies in St Louis, MI (Mar 2023)
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How Installing Energy-Efficient Windows in St Louis Saves You Money

Energy-efficient windows can benefit you in several ways. Here are some reasons you may want to consider making the switch:

• Reduce your carbon footprint: By using less energy once switching to Energy Star certified windows, you'll also be reducing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
• Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Upgrading and repairing your windows is an important part of maintaining your property and its value.
• Save on electricity bills: The Department of Energy estimates that heat gained or lost through windows accounts for about 25-30% of residential energy use. Installing energy-efficient windows can help reduce that number, which helps you save more on your bills.
• Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent damage from the sun's UV rays to your floors, carpets and furniture.

Estimated Cost of Window Replacement in St Louis

Each window replacement company offers varying services and has varying costs depending on a few factors.

How Much Do New Windows Cost?

Typically, St Louis homeowners can anticipate their window installations to range from $250 to $1,200. The average cost sits at around $600. How much it will cost is based on several factors, such as material, the location of your home, size, number of windows, type and more.

With windows, efficiency is one of the most important factors for many homeowners. Efficient windows may cost more off the bat, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save St Louis homeowners $469+ per year after replacing single-pane windows.

We advise getting 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?

When it comes to window replacements, in general there are two types that your installer will offer: 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 or deterioration. With this service, your professionals will replace the entire window, including the sill, trim and frame. A pocket installation involves replacing a window within the existing frame. This means instead of taking out the whole unit and rebuilding it, the installer will just put the replacement window (also called a retrofit or insert window) into the frame.

If you're not sure which window installation service you should get, your installer can advise you. Typically, the decision depends on factors like the age and condition of the home, the type of building material, budget and time restrictions.

How We Choose the Best Window Installers in St Louis

In our hunt to make your home improvements easier and more eco-friendly in St Louis, the EcoWatch Reviews team examined many companies before settling on these. Along with energy efficiency, we evaluated window companies all across the state and assigned rankings based on the following methodology:

Service Area

This one is self-explanatory, but we've chosen to highlight window installation companies that serve the St Louis area so you can find the right window installation company near you.

Work Quality

We're certain that you're looking for a company to 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 the majority of customers don't have positive things to say about their experience with a certain installer, it won't be featured on EcoWatch.

Cost

Cheaper windows don't necessarily mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers' prices, 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 to many homeowners. That's why window installation companies with 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 earn higher rankings by our standards. We like to see at least ten years of experience.