20 Best Window Companies in St. Peter, MN (2025 Reviews)

How Installing Energy-Efficient Windows in St. Peter Saves You Money

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

• Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
• Save on energy bills: The Department of Energy estimates that heat gained or lost through windows makes up around 25-30% of residential energy use. Switching to energy-efficient windows can help decrease that amount, which helps you save $492 a year on your bills.
• Decrease your carbon footprint: You can reduce your carbon footprint by about 12% once you install Energy Star certified windows. In St. Peter, that’s about 519 pounds per year on average.
• Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its value, especially if you have an older home.

Estimated Cost of Window Replacement in St. Peter

Windows come in varying shapes, purposes and styles, so costs and services will vary considerably depending on your project. Below, we detail the average cost and services that you can get from window replacement companies.

How Much Do New Windows Cost?

Although the typical cost to install one window is around $600, it can range anywhere from $200 to $1,200. These numbers vary depending on the specifics of your installation, like type, size, material, the location of your home, number of windows and more.

Whether or not you want energy-efficient windows is another factor that will influence the cost. These will almost always cost more than other windows, but on the other hand, you can save about $492 a year on your energy bills in St. Peter.

Something else that affects the overall cost is the material you pick for your frame. Aluminum frames are generally the least expensive and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames cost the most, as they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

The first thing to ask yourself when getting new windows is: Should you get a full-frame installation or a pocket installation?

A full-frame installation replaces the full window, such as the windowsill, frame, trim and the window panes. As this kind of installation requires more time, it will be more expensive than a pocket installation. Pocket installations (or retrofits) involve installing a new window within the existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.

If you’re still trying to decide which kind of installation you need, you can consult with your installer and get their advice. The decision mostly is influenced by how old the frames are and if there’s any damage.

How We Choose the Best Window Installers in St. Peter

EcoWatch reviews differ from most reviews because we assess these companies through a sustainability lens. Along with energy efficiency, we evaluated several window installers in St. Peter and ranked them using the following methodology:

Service Area

This one is self-explanatory, but we’ve chosen to highlight window installers that serve the St. Peter area so you can find the best window installation company near you.

Work Quality

When selecting new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand 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

We analyzed patterns in recent online reviews to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across most other categories, including warranty, quality of parts, quality of installation, cost, professionalism and more.

Cost

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

Warranty

As discussed, windows are a hefty investment, so you’ll want to be certain that investment is well protected. Window installation companies that have 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 quite some time. Window installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.