20 Best Window Companies in Union, SC (2023 Reviews)
Looking to improve your property's look? The best window replacement companies can help.
We analyzed all the top-rated window companies in Union and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
Whether you're updating for style or have damaged windows, windows play a crucial role in conserving your home's electricity. During the hot summer months, the last thing you want is your cool air to leak out of your outdated windows.
Thankfully, helping you save money with efficient windows also aligns with our goals of conserving energy and the resources it takes to make it.
We've made a list of the best installation companies to help you in your search, so you can not only take advantage of brand new windows, but also save money on your power bills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Union
The EcoWatch Reviews team assessed dozens of installers in Union to find the top window installation companies for our readers. The providers in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World has windows expertise in Union. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been in business since 1995 and currently provides services to 200 locations nationwide.
You may want to consider going with Window World if you're looking for a installer 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’s commitment to sustainability shows in its energy-efficient window offerings. 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 Union?Window World doesn’t have any pricing information displayed on its website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate pricing information.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen has the best availability in Union. It's 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. Hundreds of positive reviews on customer review websites back the provider's reputation.
Andersen may be the company for you if you're interested in one that 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 WindowsA 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. Not all of Andersen’s windows are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Union?Andersen doesn’t have any pricing information displayed 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 pricing, you can get a quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has over 20 years of industry experience, and it currently provides services to 27 states nationwide. The provider has plenty of positive reviews from customers on online review websites.
If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the right provider for you.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct’s commitment to sustainability can be seen in its energy-efficient window offerings. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Union?Prices aren’t displayed on Universal’s website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. For more detailed information on pricing, you can ask for a quote from the company.
We've recommended providers with shining reputations, but keep in mind some national companies have independently owned locations in Union, so the quality of service may depend on your local crew. We have tried to stay unbiased and transparent by listing pros and cons for each company reviewed.
More Window Companies in Union
Renewal by Andersen Window Replacement
Duncan, SC-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Double-Hung
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Window Replacement
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Sliding Glass
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Energy-Efficient Options
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Custom Window Designs
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Full-Service Installations
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Aluminum Window Frames
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Bay Windows
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Residential Windows
Champion Replacement Windows of Greenville
Industrial Park Unit D, SC-
Free assessment
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Price Transparency
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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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Bay Windows
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Double-Hung
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Window Replacement
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Residential Windows
Window World of Upstate
Greenville, SC-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Window Replacement
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Residential Windows
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Double-Hung
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Bay Windows
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Custom Window Designs
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Sliding Glass
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Fast Delivery
Champion Replacement Windows of Columbia
Columbia, SC-
Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Window Replacement
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Residential Windows
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Bay Windows
Champion Replacement Windows of Charlotte
Charlotte, NC-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Bay Windows
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Window Replacement
Window Nation
Charlotte, NC-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Stained Glass
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Energy-Efficient Options
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Sliding Glass
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Window Replacement
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Double-Hung
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Custom Window Designs
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Residential Windows
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Bay Windows
Home Services at The Home Depot
2300 E Main St, SC-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Stained Glass
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Commercial Windows
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Window Replacement
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Fast Delivery
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Residential Windows
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Custom Window Designs
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Glass Showers
Window Depot USA of The Upstate and Greater Greenville, SC
Wellford, SC-
Timely Service
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Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Double-Hung
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Energy-Efficient Options
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Window Replacement
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Residential Windows
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Fast Delivery
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Glass Showers
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Custom Window Designs
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Sliding Glass
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Bay Windows
Carolina Glass & Storefront Systems, LLC
Spartanburg, SC-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
Services Offered
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Sliding Glass
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Custom Window Designs
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Glass Showers
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Commercial Windows
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Window Repair
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Residential Windows
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Fast Delivery
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Window Replacement
Architectural Glass
Greer, SC-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
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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Commercial Windows
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Sliding Glass
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Window Replacement
Gwinn's Siding & Window Co No 2 Inc
Laurens, SC-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Window Replacement
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Custom Window Designs
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Residential Windows
Pane -N- The Glass
Rock Hill, SC-
Price Transparency
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Timely Service
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Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Window Replacement
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Residential Windows
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Fast Delivery
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Glass Showers
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Custom Window Designs
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Sliding Glass
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Window Repair
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Commercial Windows
The Building Center Inc
Rock Hill, SC-
Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Fast Delivery
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Residential Windows
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Window Replacement
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Commercial Windows
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Custom Window Designs
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Energy-Efficient Options
Surface Bella
Greenville, SC-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Fast Delivery
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Window Replacement
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Residential Windows
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Glass Showers
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Custom Window Designs
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Commercial Windows
GBS Building Supply - Greenville
Greenville, SC-
Price Transparency
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Timely Service
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Good Customer Service
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Free assessment
Services Offered
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Fast Delivery
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Glass Showers
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Window Replacement
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Residential Windows
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Commercial Windows
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Custom Window Designs
Superior Windows and Siding
Inman, SC-
Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Residential Windows
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Custom Window Designs
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Sliding Glass
Glass Doctor of Greenville SC
Greenville, SC-
Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Glass Showers
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Custom Window Designs
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Double-Hung
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Window Replacement
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Commercial Windows
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Window Repair
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Residential Windows
B & F Roofing Co Inc
Greenville, SC-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Residential Windows
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Stained Glass
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Aluminum Window Frames
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Window Replacement
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Custom Window Designs
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Fast Delivery
Taylors Window & Screen
Greenville, SC-
Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Sliding Glass
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Energy-Efficient Options
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Residential Windows
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Custom Window Designs
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Double-Hung
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Glass Showers
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Window Replacement
Davis Contracting LLC
Greenville, SC-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Double-Hung
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Window Replacement
Calculate how much you can expect to pay for window installation and replacement in Union, SC 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 Union Saves You Money
There are quite a few perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch are the following:
- Better temperature control in your home: When you reside in a city like Union where the winters can get chilly, you often need to depend on your heater to keep your house warm. Energy-efficient windows can lower how hard your heater needs to work to heat your home.
- Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can reduce your carbon footprint by about 12%, according to Energy Star.
- 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, drafty or potentially even damaged in some way. Upgrading your windows could help increase the value of your home if you decide to sell.
- More efficient energy use in your household: In Union where the summers can be pretty hot, energy-efficient windows lower the amount of cool air that is lost through your windows, making it easier to keep your house cool.
Estimated Cost of Window Replacement in Union
Windows come in varying purposes, shapes and styles, so costs and services will vary greatly depending on several factors. Below, we detail the typical cost and services that you'll find from window replacement companies.
How Much Do New Windows Cost?
According to our market research, the national average cost to install a single window is around $600. However, window replacement costs can range from $200 to $1,200 for each window. This is because the cost of window installations depend on several factors specific to your home, such as the size, material and number of windows you need to replace, as well as the location of your property.
Whether or not you want energy-efficient windows is another factor that will affect the cost. These will almost always cost more than other windows, but on the other hand, you can save about $391 a year on your energy bills in Union.
We recommend requesting free quotes from several window installation companies to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
The first step of an installation is to think about whether you should get a full-frame or pocket installation.
A full-frame installation replaces the complete window, including the sill, frame, trim and the window panes. As this kind of installation requires more time, it will cost more than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are simpler and will be less expensive, but you can't do this type of installment if you have any pre-existing rot or water damage.
If you're still trying to decide which kind of installation you should get, you can consult with your installer and get their recommendation. The decision mostly is influenced by how old the frames are and if there's any damage present.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Union
In our hunt to find the most reliable, eco-friendly window installers in Union, the EcoWatch Reviews team landed on the above companies as the top window installation companies in the city. Along with energy efficiency, we reviewed each installer and assigned rankings using the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve Union 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 installer featured on this list to ensure its contractors 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 very important review factor is customer feedback. If the majority of customers don't have nice feedback about their service from a certain window installation company, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: as with 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 spectrum of price and financing options so they're accessible to most homeowners.
Warranty
As discussed, windows are a considerable investment, so you'll want to be certain that investment is protected. Window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a proven track record in the industry. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Union, SC Window Replacement FAQs
How much does window installation cost?
The national average cost to install a single window is about $600 but can range between $200 and $1,200, based on a few different factors. The price is typically dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What are the different kinds of windows?
The most common types of windows for homes include: bay windows, transom windows, slider windows, picture windows, double-hung and single-hung windows, awning windows and casement windows.
When should I use a window installation company?
Unless you're handy and have all of the necessary tools to replace your own windows, we recommend hiring a professional. The window installation process is complex and can take anywhere from four to six hours for a single window. Although it's tempting to try to save some money by doing it yourself, hiring a professional is a faster, more efficient and much safer option.
How often do you need to replace windows?
Windows generally have a lifespan of about 20 to 30 years, but anytime you see damage on your windows, it's a good idea to have them looked at by an expert to determine if they need any repairs or replacements.