20 Best Window Companies in Oshkosh, WI (2024 Reviews)
Thinking about replacing your home's windows? We’ve got you covered in this list of the top window installation companies.
We analyzed all the top-rated window companies in Oshkosh and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A review of the best window replacement companies in Oshkosh may not seem like the most captivating article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. Drafty windows can decrease your home’s energy efficiency by up to 30%, according to the Department of Energy. In Oshkosh, that’s around $522 per year that you could save on your energy bills by making the switch.
Replacement windows improve your home’s insulation, not only making you and your family more comfortable during extreme temperatures, but also saving you money and helping the environment.
Efficient windows are of particular importance in Oshkosh, where winters are long and cold. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $522 a year.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in Oshkosh
The EcoWatch team examined dozens of installers across the country to find the top window companies for our readers. The companies mentioned in this article scored best in our review categories, which include energy-efficient offerings, availability, local expertise, customer service, price and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the windows business, and it has proved to be one of the most respected companies in the business. The company has hundreds of positive reviews from customers on online review websites.
It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsThere are a wide variety of window types that Window World offers, some of which are Energy Star products. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Oshkosh?Pricing details are not available on Window World’s website because the cost of window replacement differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can request a quote from the company.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the windows business, and it has proved to be one of the most respected companies in the business. The company has hundreds of positive reviews from customers on online review websites.
It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsThere are a wide variety of window types that Renewal by Andersen offers, some of which are Energy Star products. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Oshkosh?Pricing details are not available on Andersen’s website because the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on the cost, you can request a quote from the company.
We strive to stay unbiased and transparent by listing pros and cons for every installer. Additionally, any partnerships do not affect our reviews.
More Window Companies in Oshkosh
Renewal by Andersen of Greater Wisconsin
Appleton, WIGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Double-Hung
Tiltin Windows, Doors and More
Appleton, WIEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Energy-Efficient Options
Bay Windows
Glass Doors
Window Replacement/Installation
Home Window Repair & Replacement
Germantown, WIEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Glass Repair
Glass Doors
Energy-Efficient Options
Wood Frames
Double-Hung
Window Repair
Screen Repair
Metal Frames
Tempered Glass
Storm/Impact Windows
Vinyl Frames
Urban Exteriors
Green Bay, WIEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Double-Hung
Energy-Efficient Options
Glass Doors
Total Glass And Paint
Hartford, WIEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Mirrors
Glass Repair
Glass Showers
Window Replacement/Installation
Window Repair
Energy-Efficient Options
Screen Repair
RNB Design Group LLC
Germantown, WIFree assessment
Timely Service
Good Customer Service
Educational Website
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Glass Showers
Double-Hung
Bay Windows
Window Repair
AHT Wisconsin Windows
Appleton, WIPrice Transparency
Good Customer Service
Services Offered
Vinyl Frames
Double-Hung
Glass Doors
Window Replacement/Installation
Triple Pane Glass
Energy-Efficient Options
Bay Windows
Packerland Home Improvement
Kaukauna, WIFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Custom Window Designs
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
Window Repair
Windows of Wisconsin
Kaukauna, WITimely Service
Educational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Glass Doors
Double-Hung
Fiberglass Frames
Bay Windows
Window Replacement/Installation
Window Depot USA of Northeast Wisconsin
Green Bay, WITimely Service
Price Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Glass Doors
Custom Window Designs
Energy-Efficient Options
Bay Windows
Window Replacement/Installation
Triple Pane Glass
Vinyl Frames
Double-Hung
Duncan's Window & Door LLC
Oshkosh, WIFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Earth Sense Energy Systems of Green Bay
Green Bay, WIGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
The Glass Guru
Sheboygan, WIEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Vinyl Frames
Tempered Glass
Skylights
Fiberglass Frames
Window Replacement/Installation
Triple Pane Glass
Energy-Efficient Options
Window Repair
Glass Repair
Wood Frames
Custom Glass
Mirrors
Glass Doors
Storm/Impact Windows
Metal Frames
Screen Repair
Glass Showers
A M Construction
West Bend, WIFree assessment
Timely Service
Educational Website
Services Offered
Window Replacement/Installation
Rosenow Customs LLC
Neenah, WIFree assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Square Oaks Home Improvement LLC
Appleton, WIEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
Window World of Fond du Lac
Fond du Lac, WIGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Double-Hung
Tri City Glass & Door
Green Bay, WIFree assessment
Timely Service
Services Offered
Window Repair
Bay Windows
Mirrors
Glass Repair
Glass Doors
Window Replacement/Installation
Storm/Impact Windows
Custom Glass
Glass Showers
Custom Windows Plus, LLC
Gillett, WIPrice Transparency
Educational Website
Free assessment
Good Customer Service
Services Offered
Double-Hung
Bay Windows
Energy-Efficient Options
Vinyl Frames
Glass Doors
Window Replacement/Installation
Custom Window Designs
Exterior Custom Solutions LLC
Neenah, WIFree assessment
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Glass Showers
Energy-Efficient Options
Vinyl Frames
Calculate how much you can expect to pay for window installation and replacement in Oshkosh, WI using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Oshkosh Saves You Money
Energy-efficient windows can benefit you in more than one way. Here are a few reasons you may want to take the plunge and make the switch:
- Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help reduce damage from the sun's UV rays to your floors, carpets and furniture.
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes usually have windows that are outdated, leaky or potentially even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
- Save on electricity bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Installing energy-efficient models can help lower how much energy is used in your home, therefore saving you about 12% more on your bills.
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can lower your indirect greenhouse gas emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Oshkosh
Each window installation company offers various services and has different costs depending on several factors.
How Much Do New Windows Cost?
Although the average cost of installing a single window is around $600, it can range anywhere from $200 to $1,200. These amounts vary based on the specifics of your installation, such as material, size, the location of your home, type, number of windows and more.
It’s also worth noting that energy-efficient windows will almost always cost more initially, but Energy Star estimates that switching out the windows on your Oshkosh home can mean an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. The amount of money you’ll save by upgrading to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
We advise requesting free quotes from several window companies to find the one that works best for you.
What Services do Window Installers Offer?
When it comes to window installations, in general there are two types that your installer will have: full-frame and pocket installations.
A full-frame installation is a replacement of the full window. It involves removing the old window, the sill, and the exterior and interior trim. It also involves extra materials, including insulation and drip edges, which increase the total cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are simpler and will be less expensive, but you can’t do this kind of installment if you have any pre-existing rot or water damage.
Your window installation company will be able to help you understand what’s best for your needs. In Oshkosh, the decision will mostly be based on the age of your home 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.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in Oshkosh
EcoWatch differs from most reviewers because we evaluate these companies through a sustainability lens. We have evaluated the top window installers in Oshkosh 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 energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve the Oshkosh area so you can find the right window installation company near you.
Work Quality
When it comes to new windows, the quality and variety of services can often play just as important of a role in overall efficiency and performance as the type of window you get. 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
Customer feedback is another very important review factor. If most customers don’t have nice feedback about their service from a certain window installation company, you won’t see it 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 points 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 Oshkosh’s climate, homeowners need to be wary of water damage, rot and low efficiency. We factored in local experience to reflect the ability of Oshkosh window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Oshkosh, WI Window Replacement FAQs
What is the average cost to install new windows in a home?
The national average cost of installing a single window is around $600 but can range from $200 to $1,200, depending on a variety of factors. The price is often dependent on the location of your property, the size of the window and the type and material of the window. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What type of window is the best for energy efficiency?
A window’s energy efficiency is influenced by a number of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.
What do window installers do?
Window installers go to your property to remove your old windows and replace them with new ones. Some companies install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation is done.
How long does it typically take to install windows?
Each window takes about 30 minutes to install based on the kind of window. However, the window installation can be a two-day job — or more — if you have a lot of windows that must be installed.