26 Best Window Replacement Companies in Koshkonong, WI (Mar 2023)
Window Companies Near Me
Looking to upgrade your home's windows? We've got you covered in this list of the best window installation companies.
We analyzed all the top window installers in Koshkonong and selected the top 26 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
Whether you're updating for aesthetics or have windows that need repairs, windows play a key role in conserving electricity in your home. Drafty windows can make your home uncomfortable in the summer or winter.
That's not great for either your bank account or the environment, but one of the top window installation companies can help with that.
Unlike other review sites, EcoWatch ranks window replacement companies on energy efficiency while also factoring in cost, customer satisfaction and service area.
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Manufactures products in-house
- Great industry reputation
- More expensive than competition
Best Window Replacement Companies in Koshkonong
The EcoWatch team examined dozens of installers in Koshkonong to find the top window companies for our readers. The companies we've included in this article scored best in our categories, including energy-efficient offerings, customer service, price, availability and more.

Window World
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EnergyStar Partner
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Lifetime warranty
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Low prices relative to competitors
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Quality of service will depend on your area
Window World has windows expertise in Koshkonong. This company has 27 years of experience in the windows business, and it has established itself as one of the best companies in the business. Many positive reviews on customer review websites back the company's reputation.
Window World may be the company for you if you want one that 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 WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. 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 Koshkonong?Pricing information is not available on Window World's website, as the cost of window installment varies greatly 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. If you'd like more accurate pricing information, you can receive a quote on the company's website.

Renewal by Andersen
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Award-winning company
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Manufactures products in-house
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Great industry reputation
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of industry experience, and it currently serves nearly every state except Mississippi and West Virginia.
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 WindowsRenewal by Andersen appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Koshkonong?Andersen doesn't have any prices listed on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on the cost, you can ask for a quote from the company.
One thing to note is that the following companies are national, meaning the quality of customer service may depend on your local crew. We have tried to remain unbiased and transparent by listing both pros and cons for each provider.
More Window Replacement Companies in Koshkonong
Ridge Top Exteriors
Madison, WI-
Dependable Service
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Arrives on Time
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Good Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Fast Delivery
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Energy-Efficient Options
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Custom Windows
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Commercial Windows
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Stained Glass
Renewal by Andersen
Madison, WI-
Award-Winning
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Arrives on Time
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Custom Windows
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Pella Windows & Doors of Madison
Madison, WI-
Helps Educate Customers
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Locally Recognized for Quality
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Free Quotes
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Fast Delivery
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Custom Windows
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Business Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
THEBCO Windows, Doors & Siding
Madison, WI-
Reliable Appointment Windows
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Excellent Customer Service
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Free Quotes
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No-Hassle Pricing
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Window Designs
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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Window Repair Glass Replacement
Waukesha, WI-
No-fee Quotes
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Reliable Service
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Excellent Customer Service
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Helps Educate Customers
Services Offered
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Residential Windows
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Tempered Glass
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Custom Windows
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Business Windows
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Double-Hung
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Sliding Glass
Siding Unlimited LLC
Waukesha, WI-
Free Quotes
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Educational Website
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Good Customer Service
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Milestone Xteriors
Mukwonago, WI-
Timely Service
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Price Transparency
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Dependable Service
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Custom Windows
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Full-Service Installations
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Business Windows
Heins Contracting
Madison, WI-
Helps Educate Customers
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Good Customer Service
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No-fee Quotes
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Supports Charities
Services Offered
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Aluminum Window Frames
Window World of Madison
Madison, WI-
Price Transparency
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Consistent Workmanship
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Educational Website
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Architectural Glass
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Sliding Glass
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Double-Hung
Infinity Exteriors - Madison
Madison, WI-
Free Quotes
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Price Transparency
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Helps Educate Customers
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Award-Winning
Services Offered
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Business Windows
Mad City Windows & Baths
Madison, WI-
Excellent Customer Service
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Price Transparency
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No-fee Quotes
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Locally Recognized for Quality
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Sliding Glass
Stanek Windows
Waukesha, WI-
Educational Website
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Excellent Customer Service
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Reliable Service
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No-Hassle Pricing
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
Aurum Contracting
Beloit, WI-
No-fee Quotes
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Reliable Service
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Excellent Customer Service
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Helps Educate Customers
Services Offered
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Residential Windows
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Custom Windows
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Commercial Windows
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Stained Glass
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Sliding Glass
Advanced Construction of Janesville
Janesville, WI-
Good Customer Service
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Free Quotes
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Consistent Workmanship
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Timely Service
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
Sunset Ridge Exteriors
McFarland, WI-
Timely Service
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No-Hassle Pricing
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Reliable Service
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No-fee Quotes
Services Offered
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Custom Windows
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Commercial Windows
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Sliding Glass
Ganser Company
McFarland, WI-
Educational Website
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Price Transparency
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Award-Winning
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Good Customer Service
Services Offered
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Custom Windows
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Glass Showers
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Aluminum Window Frames
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Energy-Efficient Options
Rodriguez Exteriors, LLC
Sun Prairie, WI-
Excellent Customer Service
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No-Hassle Pricing
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Helps Educate Customers
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Reliable Appointment Windows
Services Offered
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Custom Window Designs
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Residential Windows
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Full-Service Installations
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Business Windows
ABC Seamless Home Specialists
Stoughton, WI-
No-fee Quotes
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Good Customer Service
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Dependable Service
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Architectural Glass
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Double-Hung
Applied Building Services
Madison, WI-
Good Customer Service
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Educational Website
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No-fee Quotes
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Price Transparency
Services Offered
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Sliding Glass
Renewal by Andersen of Milwaukee Waukesha Showroom
Waukesha, WI-
Good Customer Service
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Educational Website
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Price Transparency
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Free Quotes
Services Offered
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Custom Window Designs
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Full-Service Installations
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Double-Hung
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Stained Glass
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Sliding Glass
Window Concepts of Milwaukee, Inc.
Waukesha, WI-
No-fee Quotes
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Award-Winning
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Good Customer Service
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Consistent Workmanship
Services Offered
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Full-Service Installations
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Custom Windows
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Residential Windows
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Sliding Glass
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Architectural Glass
Lake Geneva Window Treatments and Design
Lake Geneva, WI-
No-Hassle Pricing
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Good Customer Service
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Educational Website
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No-fee Quotes
Services Offered
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Fast Delivery
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
A O Bauer Glass Inc
Delavan, WI-
Free Quotes
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Helps Educate Customers
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Doors
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Custom Window Designs
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Commercial Windows
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Double-Hung
Genesis Exteriors
Madison, WI-
Educational Website
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Dependable Service
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No-fee Quotes
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Good Customer Service
Services Offered
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Custom Window Designs
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Energy-Efficient Options
SIMS Exteriors and Remodeling
Stoughton, WI-
Good Customer Service
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Arrives on Time
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Price Transparency
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Free Quotes
Services Offered
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Custom Windows
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Double-Hung
Champion Replacement Windows of Madison
Madison, WI-
No-fee Quotes
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Price Transparency
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Award-Winning
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Good Customer Service
Services Offered
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Custom Window Designs
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Sliding Glass
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Double-Hung
How Installing Energy-Efficient Windows in Koshkonong Saves You Money
There are quite a few benefits of switching to energy-efficient windows. Some reasons you may want to consider making the switch include the following:
- Save on power bills: Installing energy-efficient windows lowers your energy bills by about 12% because you need less energy.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Reduce your carbon footprint: In Koshkonong, you can cut your indirect greenhouse gas emissions by about 715 pounds per year after you upgrade to energy-efficient windows.
- Protect your investment: If you have an older home, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help raise the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Koshkonong
Let's go over the cost of installing new windows and the kinds of services offered by installers.
How Much Do New Windows Cost?
Even though the average of installing a single window is about $600, it can range anywhere from $200 to $1,200. These estimates vary depending on the specifics of your installation, like the location of your home, size, material, type, number of windows and more.
It's also worth noting that energy-efficient windows will usually cost more initially, but Energy Star predicts that switching out the windows on your Koshkonong home translates to 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. The amount of money you'll save by installing energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Costs will also vary depending on the material of your frame. Aluminum frames cost the least. They're sturdy, light and easy to maintain, but offer poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made from 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 offer decent insulation for your home.
What Services do Window Installers Offer?
When it comes to window replacements, there are typically two kinds that your installer will have: full-frame and pocket installations.
A full-frame installation is a total window replacement. It involves removing the old window, the windowsill, and the exterior and interior trim. It can also involve extra materials, like insulation and drip edges, which raise the overall cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. A pocket installation entails replacing a window without replacing the frame. So, instead of tearing out the whole window and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.
If you're still debating which kind of installation you should get, you can talk to your installer and get their advice. The choice mostly is influenced by the age of your window frames and if there's any damage.
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Manufactures products in-house
- Great industry reputation
- More expensive than competition
How We Choose the Best Window Installers in Koshkonong
In our hunt to find the most reliable, eco-friendly window installers in Koshkonong, the EcoWatch Reviews team chose the above companies as the best window installation companies in the city. Along with energy efficiency, we evaluated several window installers in Koshkonong and assigned rankings using the following methodology:
Service Area
Because this is a guide for Koshkonong, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in Koshkonong.
Work Quality
We're certain that you're looking for professionals who do a great job installing windows. We've vetted each company featured in our guide to ensure its technicians are well-qualified and that the company has received lots 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 service from a certain window installation company, it won't be featured on EcoWatch.
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. On the other hand, we want to make sure we're highlighting companies that offer a wide range of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that give you 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 installation companies that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Koshkonong, WI Window Replacement FAQs
How much should window installation cost?
The typical cost of replacing one window can range from $450 to $650. There are a variety of factors that affect how much it costs, such as your property's location, the materials used in designing the windows, styles and sizes of windows, the number of windows, how energy-efficient the windows are and local labor costs.
Which type of window should I get?
A window's energy efficiency is influenced by a number of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.
Can you install your own windows?
If you're handy and have the time and patience to do the job right, you may be able to install your own windows. However, if you don't have the time or know-how, we recommend getting a professional to do it for you.
When is the best time of year to replace windows?
Though you can install windows any time of year, warmer weather is generally better for installing replacement windows. Additionally, it shouldn't be raining, as rain can make the installation more difficult.
Should I replace all my windows at once?
If you're upgrading your windows to save on your energy bills, replacing all your windows at once is the only way to see a noticeable difference. On the other hand, if you have just a few windows that are broken or drafty, you can replace just those.