20 Best Window Companies in New Castle, DE (2023 Reviews)
Thinking of improving your house's value? The best window replacement companies can help.
We analyzed all the top-rated window companies in New Castle 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
A review of the best window installation companies in New Castle may not seem like the most riveting article on EcoWatch, but trust us, windows have more of an impact on your life than you might think. Potential leaks or drafts can cut your home's energy efficiency by up to 30%, according to the Department of Energy. In New Castle, that's nearly $301 per year that you could save on your electricity bills by making the switch.
Installing energy-efficient windows on your property can help you save money each month on your power bills — and you can help the environment, too.
Efficient windows are of particular importance in New Castle, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $301 per year.
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 New Castle
The EcoWatch Reviews team evaluated many window companies in New Castle to find the top ones for our readers. The providers in this article scored the best in our review categories, which include energy-efficient offerings, availability, customer service, local expertise, price and more.

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 New Castle. This window installation company has been in business since 1995 and currently serves 200 locations nationwide. Its reputation is backed by hundreds of positive reviews on customer 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 range of window types available from Window World, 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 New Castle?Though pricing is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about the cost.

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 New Castle. This window installation company has been in business since 1995 and currently serves nearly every state except Mississippi and West Virginia. Its reputation is backed by hundreds of positive reviews on customer 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 range of window types available from Renewal by Andersen, 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 New Castle?Though pricing is not readily available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can inquire about a free quote on its website for more information about the cost.

Aeroseal Windows
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Many years of experience
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Great industry reputation
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Low number of customer complaints
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Manufactures products in-house
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Custom Designs
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No lifetime warranty
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Not ideal for residential installations
Aeroseal Windows provides the best window installation for businesses in New Castle. This company has been in business since 1999 and currently provides services to 13 states and Washington D.C. Its reputation is backed by hundreds of positive reviews on customer review websites.
You may want to consider going with Aeroseal if you're looking for a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows offers 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. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in New Castle?Even though pricing is not available on Aeroseal’s website, it provides high-quality windows at a competitive price point. If you’d like more accurate pricing information, you can get a quote on the company’s website.

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 provides the best warranty in New Castle. This window installation company has been in business since 2002 and currently serves 27 states nationwide.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThe 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. Not all of Universal’s offerings are Energy Star certified, so be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Universal Windows Direct cost in New Castle?Although prices are not available on Universal’s website, 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. You can ask for a free quote on its website for more information about pricing.
We aim to remain unbiased and transparent by including pros and cons for each company. Additionally, any partnerships do not affect our rankings.
More Window Companies in New Castle
Renewal by Andersen Window Replacement
King of Prussia, PA-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Energy-Efficient Options
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Full-Service Installations
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Bay Windows
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Fast Delivery
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Aluminum Window Frames
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Window Replacement
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Custom Window Designs
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Double-Hung
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Stained Glass
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Residential Windows
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Sliding Glass
Window World of Northern Delaware
New Castle, DE-
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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Window Replacement
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Bay Windows
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Double-Hung
Champion Replacement Windows of Philadelphia
Moorestown, NJ-
Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Bay Windows
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Residential Windows
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Custom Window Designs
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Double-Hung
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Window Replacement
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Sliding Glass
Champion Replacement Windows of Baltimore
Rosedale, MD-
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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Window Replacement
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Sliding Glass
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Double-Hung
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Bay Windows
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Residential Windows
Window Nation
Pennsauken Township, NJ-
Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Bay Windows
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Stained Glass
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Custom Window Designs
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Sliding Glass
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Full-Service Installations
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Energy-Efficient Options
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Window Replacement
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Residential Windows
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Double-Hung
Pella Windows & Doors of Wilmington
Wilmington, DE-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Double-Hung
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Fast Delivery
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Bay Windows
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Window Replacement
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Commercial Windows
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Residential Windows
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Sliding Glass
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Custom Window Designs
J.W. Tull Roofing Contractor
Wilmington, DE-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Residential Windows
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Custom Window Designs
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Glass Showers
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Commercial Windows
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Fast Delivery
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Window Replacement
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Bay Windows
All American Roofing & Exterior Remodeling
Wilmington, DE-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Window Replacement
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Energy-Efficient Options
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Commercial Windows
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Glass Showers
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Residential Windows
Glass Doctor of Delaware
New Castle, DE-
Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Commercial Windows
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Residential Windows
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Window Replacement
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Glass Showers
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Window Repair
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Double-Hung
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Custom Window Designs
JMJ Custom Windows & Doors
Carneys Point Township, NJ-
Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
Homecraft Inc.
Garnet Valley, PA-
Educational Website
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Free assessment
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Good Customer Service
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Timely Service
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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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Window Replacement
High Point Windows
Pilesgrove, NJ-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Window Replacement
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Double-Hung
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Fast Delivery
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Energy-Efficient Options
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Residential Windows
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Commercial Windows
Guida Door & Window
Boothwyn, PA-
Price Transparency
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Educational Website
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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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Window Replacement
Sundance Kitchen, Baths & Exteriors
Middletown, DE-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Glass Showers
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Residential Windows
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Full-Service Installations
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Commercial Windows
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Window Replacement
Chapman Windows Doors & Siding
West Chester, PA-
Good Customer Service
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Free assessment
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Price Transparency
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Timely Service
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Educational Website
Services Offered
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Double-Hung
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Aluminum Window Frames
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Glass Showers
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Window Replacement
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Residential Windows
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Sliding Glass
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Fast Delivery
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Stained Glass
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Energy-Efficient Options
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Custom Window Designs
General Contractor | Builder | Distinctive Carpentry
West Chester, PA-
Good Customer Service
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Timely Service
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Stained Glass
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Glass Showers
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Aluminum Window Frames
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Residential Windows
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Window Replacement
Compass Windows and Door
Media, PA-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Window Repair
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Bay Windows
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Fast Delivery
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Energy-Efficient Options
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Window Replacement
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Double-Hung
Complete Home Remodeling and Improvements Contractors
Gibbstown, NJ-
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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Glass Showers
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Energy-Efficient Options
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Residential Windows
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Window Replacement
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Aluminum Window Frames
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Custom Window Designs
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Bay Windows
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Double-Hung
Thermal Quality Window & Door Company
Broomall, PA-
Free assessment
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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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Window Replacement
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Bay Windows
North American Window & Door
West Chester, PA-
Free assessment
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Timely Service
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Good Customer Service
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Price Transparency
Services Offered
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Custom Window Designs
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Glass Showers
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Double-Hung
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Window Replacement
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Fast Delivery
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Residential Windows
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Aluminum Window Frames
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Sliding Glass
Calculate how much you can expect to pay for window installation and replacement in New Castle, DE 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 New Castle Saves You Money
By switching to energy-efficient windows, you and your family can enjoy several benefits, such as:
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- Protect your valuables: Many Energy Star certified 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.
- Better temperature control in your home: Residing in a very cold place like New Castle often means relying on your heater to keep your house cool. Energy-efficient windows can lower how much heat is lost through your windows when heating your home.
- Save on energy bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of residential energy use. Upgrading to energy-efficient models can help reduce how much energy is used in your home, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in New Castle
Windows come in varying shapes, styles and purposes, so costs and services will differ remarkably depending on several factors. Below, we describe the typical cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
The typical cost to replace a single window is about $600 but can range from $200 to $1,200. But costs will differ considerably depending on the number of windows you need, your location, the current condition of your home and the quality of your products. A lot of window companies also offer replacement door installations and other add-ons like shutters, baths, coating and more. These extra services will increase your overall project costs.
With windows, efficiency is one of the most important factors for many homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — especially during the summer and winter — they can provide many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save New Castle homeowners $301+ each year after replacing single-pane windows.
Asking for free quotes from multiple installers is the best way to figure out which one is right for you.
What Services do Window Installers Offer?
Generally, there are two kinds of window installation services you can get: full-frame and pocket installations.
Full-frame installations require replacing the whole window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has significant damage. Full-frame installations are more involved and will increase overall costs. Pocket installations (or retrofits) entail replacing a window within its existing frame, which makes pocket installations take less time and therefore cost less. But, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.
If you're not sure which kind of window installation service you need, your installer can advise you. Generally, the choice is influenced by factors such as the age and condition of the home, the type of building material, budget and time restrictions.
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 New Castle
In our hunt to find the most reliable, eco-friendly window installers in New Castle, the EcoWatch team evaluated dozens of companies before deciding on these. Along with energy efficiency, we evaluated window companies all across the state and ranked them using the following methodology:
Service Area
This one is self-explanatory, but we've chosen to highlight window installation companies that serve the New Castle area so you can find the best window installation company near you.
Work Quality
When picking new windows, the quality and variety of services often plays just as important of a role in overall efficiency and performance as the brand you get. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don't have good things to say about their service from a certain installer, you won't see it featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a considerable investment, so you'll want to be certain that investment is protected. Window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for a while. Window installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
New Castle, DE Window Replacement FAQs
What is the typical cost to install windows in a home?
The average cost to install a single window ranges between $450 and $650. There are many factors that affect how much it costs, including the materials used in designing the windows, the number of windows, styles and sizes of windows, how energy-efficient the windows are, your property's location and local labor costs.
What are the different types of windows?
The most common kinds of windows for homes are slider windows, double-hung and single-hung windows, picture windows, transom windows, awning windows, casement windows and bay windows.
Do I really need to use a window installation company?
You should hire a window installation professional whenever you want new windows. Installing windows is a complex process that can be difficult to do on your own, so it's best handled by the professionals.
When is the best time of year to replace windows?
While you can install windows any time of year, warmer weather is typically better for replacing windows. Additionally, it shouldn't be raining, since rain can make the installation more difficult.