27 Best Window Replacement Companies in New Castle, DE (Mar 2023)
Window Companies Near Me
If you're thinking of upgrading to new windows, our guide to the top window installation companies can help.
We analyzed all the top window installers in New Castle and selected the top 27 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
Although clean energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your house's efficiency can also have a large impact on home energy conservation. If your windows are outdated or drafty, you could be sending 25-30% of your home's heat or cool air out of them.
Installing new, efficient windows on your property can help you save money each month on your electric bills — and you can help the environment, too.
Unlike other review sites, EcoWatch ranks window installation companies on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Affordability
Window World
- Lifetime warranty
- Large serice area
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Many years of experience
- Custom Designs
- Not ideal for residential installations
Best Window Replacement Companies in New Castle
The EcoWatch team assessed dozens of window providers in New Castle to find the best ones for our readers. The companies in this article scored best in our review categories, such as energy-efficient offerings, price, availability, local expertise, customer service and more.

Window World
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Lifetime warranty
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Large serice area
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Great industry reputation
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Quality of service will depend on your area
Window World provides windows expertise in New Castle. This provider has 27 years of experience in the windows industry, and it has proved to be one of the best companies in the business.
It has established itself as a company 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 is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in New Castle?Window World doesn't have any pricing information available on its website, but 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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Manufactures products in-house
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Great industry reputation
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Member of US Green Building Council
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More expensive than competition
Renewal by Andersen offers the best availability in New Castle. Andersen has about 27 years of experience in the window installation industry. Its reputation is backed by all the 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 WindowsRenewal by Andersen carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want high-quality Energy Star windows when inquiring. 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?Andersen does not list prices 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. You can inquire about a free quote on its website for more information about the cost.

Aeroseal Windows
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Low number of customer complaints
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Many years of experience
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Custom Designs
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Not ideal for residential installations
Aeroseal Windows has the best window installation for businesses in New Castle. This provider has 23 years of experience in the windows business, and it has proved to be one of the best companies in the business. Its reputation is backed by a considerable amount of positive reviews on customer review websites.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows appeals to eco-conscious consumers by providing energy-efficient window offerings. 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?Prices aren't listed on Aeroseal's website, but it provides high-quality windows at a competitive price point. You can ask for a free quote on its website for more information about the cost.

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. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This company has 20 years of experience in the windows business, and it has become one of the most respected companies in New Castle. Hundreds of positive reviews on customer review websites back the provider's reputation.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so make sure to ask your Universal representative when inquiring about services.
How much does Universal Windows Direct cost in New Castle?Universal doesn't have any prices listed on its 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. Getting a free quote on its website is the best way to get more accurate information.
We strive to remain unbiased and transparent by describing pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Replacement Companies in New Castle
Emerald Windows
Philadelphia, PA-
Consistent Workmanship
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Excellent Customer Service
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Architectural Glass
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Green Star Exteriors
Holmes, PA-
Good Customer Service
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Free Quotes
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Consistent Workmanship
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Supports Charities
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
PJ Fitzpatrick
New Castle, DE-
Price Transparency
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Award-Winning
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Arrives on Time
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Good Customer Service
Services Offered
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Glass Showers
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Architectural Glass
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Custom Windows
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Double-Hung
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Sliding Glass
Chapman Windows Doors & Siding
West Chester, PA-
Arrives on Time
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Dependable Service
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Excellent Customer Service
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Award-Winning
Services Offered
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Energy-Efficient Options
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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
Kendall Total Home
Laurel Springs, NJ-
Excellent Customer Service
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No-fee Quotes
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Consistent Workmanship
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Educational Website
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Windows
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
Home Genius Exteriors
Bala Cynwyd, PA-
Dependable Service
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Timely Service
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Residential Windows
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
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Sliding Glass
Energy Windows, Doors and More
Cherry Hill, NJ-
No-fee Quotes
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Timely Service
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Excellent Customer Service
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Consistent Workmanship
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Double-Hung
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Sliding Glass
Ardmor, Inc
Pennsauken Township, NJ-
Arrives on Time
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No-fee Quotes
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Helps Educate Customers
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Good Customer Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Glass Showers
Energy Windows Doors & More
Conshohocken, PA-
Good Customer Service
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Helps Educate Customers
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Consistent Workmanship
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No-fee Quotes
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Double-Hung
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Sliding Glass
Renewal by Andersen Window Replacement
King of Prussia, PA-
No-Hassle Pricing
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Good Customer Service
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No-fee Quotes
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Dependable Service
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay Windows
Renewal by Andersen Window Replacement
Glassboro, NJ-
No-fee Quotes
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Price Transparency
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Excellent Customer Service
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Dependable Service
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
North American Window & Door
West Chester, PA-
Reliable Service
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Price Transparency
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Free Quotes
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Timely 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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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Homecraft Inc.
Wilmington, DE-
Dependable Service
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Educational Website
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Arrives on Time
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No-fee Quotes
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
Homecraft Inc.
Garnet Valley, PA-
Excellent Customer Service
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Consistent Workmanship
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Award-Winning
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Arrives on Time
Services Offered
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Custom Windows
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Energy-Efficient Options
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Architectural Glass
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Double-Hung
Carranza Roofing & Remodeling
Bridgeport, PA-
Excellent Customer Service
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Award-Winning
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Residential Windows
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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
Window World of Northern Delaware
New Castle, DE-
Supports Charities
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Helps Educate Customers
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Free Quotes
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No-Hassle Pricing
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
Pella Windows & Doors of Wilmington
Wilmington, DE-
Supports Charities
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Helps Educate Customers
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No-Hassle Pricing
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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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Business Windows
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Double-Hung
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Sliding Glass
West Chester Glass
PA · In Chester county industrial condominiums, PA-
No-fee Quotes
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Good Customer Service
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Helps Educate Customers
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Price Transparency
Services Offered
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Residential Windows
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Glass Showers
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Sliding Glass
South Jersey Glass & Door
Glassboro, NJ-
Educational Website
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No-Hassle Pricing
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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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Doors
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Sliding Glass
South Jersey Glass & Door
Vineland, NJ-
Excellent Customer Service
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No-fee Quotes
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Price Transparency
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Helps Educate Customers
Services Offered
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Residential Windows
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Architectural Glass
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
Glick's Exteriors
Gap, PA-
Reliable Appointment Windows
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Helps Educate Customers
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Infinity from Marvin - Homespire Windows & Doors
Norristown, PA-
No-Hassle Pricing
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Free Quotes
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Timely Service
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Reliable Service
Services Offered
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Double-Hung
Rutter Roofing & Exteriors
Malvern, PA-
Excellent Customer Service
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Helps Educate Customers
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Free Quotes
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Award-Winning
Services Offered
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Double-Hung
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Residential Windows
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Full-Service Installations
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Custom Window Designs
Milanese Remodeling
Coatesville, PA-
Excellent Customer Service
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Consistent Workmanship
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Reliable Appointment Windows
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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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Business Windows
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Double-Hung
Kirkin Exteriors
Twin Lane Rd, DE-
No-fee Quotes
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Educational Website
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Award-Winning
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No-Hassle Pricing
Services Offered
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Custom Windows
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Residential Windows
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Full-Service Installations
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Commercial Windows
Brandywine Exteriors
Wilmington, DE-
Timely Service
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Free Quotes
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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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Sliding Glass
AH Davis & Son
West Chester, PA-
Good Customer Service
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Educational Website
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Free Quotes
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Reliable Service
Services Offered
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Custom Window Designs
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Residential Windows
How Installing Energy-Efficient Windows in New Castle Saves You Money
By switching to energy-efficient windows, you can enjoy several benefits, such as:
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- Save on power bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of energy use in your home. Switching to energy-efficient windows can help lower that number, which helps you save some money on your bills.
- Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can cut your carbon footprint by about 12%, according to Energy Star.
- 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.
Estimated Cost of Window Replacement in New Castle
Let's go over the cost of window replacement and the kinds of services you may need for your home.
How Much Do New Windows Cost?
According to our research, the typical cost to install a single window is around $600. However, window installation costs can range from $200 to $1,200 for each window. These estimates vary depending on specific characteristics of your installation, including type, size, the location of your home, material, number of windows and more.
With windows, efficiency is the most important factor for many homeowners. Windows with higher efficiency may cost more initially, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save New Castle homeowners $301+ each year after replacing single-pane windows.
Costs will also vary depending on the material you choose for your window frames. Aluminum frames cost the least. They're sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made using wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
There are typically two kinds of window replacement services: full-frame and pocket installations.
A full-frame installation replaces the full window, such as the windowsill, frame, trim and the window panes. Because this type of installation is more involved, it will cost more than a pocket installation. A pocket installation involves replacing a window within the existing frame, which is usually less expensive than a full-frame installation.
Your window installation company will be able to help you figure out what's best for your needs. In New Castle, the decision will mostly be based on the age of your home and if there's any moisture damage. Wood can decay if it's not properly maintained over the years, so it's good to have a professional assess your frames and window sills.
Best Affordability
Window World
- Lifetime warranty
- Large serice area
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Many years of experience
- Custom Designs
- Not ideal for residential installations
How We Choose the Best Window Installers in New Castle
In our search to make your home improvements easier and more eco-friendly in New Castle, the EcoWatch Reviews team landed on the above companies as the best window installation companies in the city. Along with energy efficiency, we assessed 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 a wide variety of states and cities so you can find the right window installation company near you.
Work Quality
When selecting 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 choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent online reviews to determine the companies with the most consistent customer satisfaction. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across nearly every category, including quality of installation, cost, professionalism, quality of parts, warranty and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs low when 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 to many homeowners. For that reason, window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of New Castle's climate, homeowners need to be wary of low efficiency, water damage and rot. We factored in local experience to reflect the ability of New Castle window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
New Castle, DE Window Replacement FAQs
What is the average cost to install new windows in a home?
The typical cost of replacing one window ranges from $450 to $650. There are many factors that influence the price, including local labor costs, your property's location, the number of windows, styles and sizes of windows, how energy-efficient the windows are and the materials used in designing the windows.
Which type of window is the best?
A window's energy efficiency depends on several factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are usually the most energy-efficient and are certified by the U.S. Department of Energy.
When do I need to use a window installation company?
Unless you have home repair skills and have all of the necessary tools to replace your own windows, we recommend hiring a professional installer. 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 safer option.
What time of year is a good time to replace my windows?
Replacement windows can be installed during any season, but autumn might be best. No matter when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into your home, so the temperature outside doesn't necessarily matter that much. Most importantly, the weather should be dry.
How do you know it's time to replace your windows?
Windows generally last around 20 to 30 years, but anytime you notice damage on your windows, it's a good idea to have them looked at by an expert to see if they are in need of a repair or replacement.