20 Best Window Companies in Greendale, WI (2025 Reviews)

How Installing Energy-Efficient Windows in Greendale Saves You Money

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

• Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% once you install Energy Star certified windows. In Greendale, that’s about 497 pounds per year on average.
• Save money on power bills: Because energy-efficient windows reduce how much energy you need to heat or cool your home, they can help you save around $426 annually on your energy bills in Greendale.
• Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
• Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its real estate value.

Estimated Cost of Window Replacement in Greendale

Windows come in different purposes, styles and shapes, so costs and services will differ considerably depending on your project. Below, we describe the typical cost and services that you’ll find from window installation companies.

How Much Do New Windows Cost?

The average cost to install a single window is about $600 but can range from $200 to $1,200. But costs differ considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also provide door installations and replacements, which have a higher price tag.

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 winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Greendale homeowners $426+ a year after replacing single-pane windows.

Costs will also vary depending on the material you pick for your window frames. Aluminum frames cost the least. They’re sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They’re also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

The first step of a window installation is to decide whether you need a full-frame or pocket installation.

Full-frame installations are necessary when you want a new style or your window has significant deterioration. With this service, your installers will replace the whole window, including the frame, sill and trim. A pocket installation involves replacing a window within the existing frame, which is generally less expensive than a full-frame installation.

If you’re still trying to decide which kind of installation you should get, you can talk to your provider 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 Greendale

In our hunt to make your home improvements easier and more eco-friendly in Greendale, the EcoWatch Reviews team examined many companies before landing on these. We’ve assessed the top window installers in Greendale mainly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows can cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Since this is a guide for Greendale, we paid more attention to companies that serve the city. There are certainly other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in Greendale.

Work Quality

When choosing new windows, the quality and breadth of services can often play 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 find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across most other categories, including cost, warranty, quality of parts, quality of installation, professionalism and more.

Cost

This one is a give-and-take: similar to most services, cheap window installers are not going to provide the highest quality service. On the other hand, 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 sizable investment, so you’ll want to make sure that investment is protected. Window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

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