20 Best Window Companies in Londonderry, PA (2023 Reviews)
Are you thinking about replacing your windows? Our guide to the top window installation companies can help you narrow down which one to pick.
We analyzed all the top-rated window companies in Londonderry 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 Londonderry may not seem like the most interesting article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. Traditional or damaged windows could lead to spending more on energy bills during the winter or summer months.
Luckily, saving you energy with more efficient windows also helps our goals of conserving energy and the resources it takes to produce it.
Efficient windows are particularly important in Londonderry, 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 $313 a 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 Londonderry
The EcoWatch team evaluated dozens of companies that serve the Londonderry area to find the best window installation companies by our standards. The installers we've mentioned in this article passed our review standards for energy-efficient offerings as well as price, customer service, local expertise 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 provides windows expertise in Londonderry. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window business for about 27 years. Many positive reviews from customers online back the provider's reputation.
Window World may be the company for you if you're looking for one that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World caters to eco-conscious consumers by providing 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 Londonderry?Window World does not display prices on its website, but it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about pricing.

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 provides the best availability in Londonderry. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for about 27 years. Many positive reviews from customers online back the provider's reputation.
Andersen may be the company for you if you're looking for 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 WindowsRenewal by Andersen caters to eco-conscious consumers by providing energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Londonderry?Andersen does not display 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 ask for a free quote on its website for more information about pricing.

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 has the best window installation for businesses in Londonderry. It's an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. This company has been in business since 1999 and currently serves 13 states and Washington D.C. Its reputation is backed by hundreds 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality 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 Londonderry?Pricing information is not available on Aeroseal’s website since the cost of window replacement varies greatly based on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. Requesting a free quote on its website is the best way to get more accurate information.

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 has the best warranty in Londonderry. This company has been operating since 2002 and currently provides services to 27 states nationwide.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThere are a wide range of window types available from Universal Windows Direct, some of which are Energy Star products. 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 Londonderry?Though 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. If you’d like more accurate information, you can request a quote on the company’s website.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation provides the best residential windows in Londonderry. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window business for about 16 years. Many positive reviews from customers online back the provider's reputation.
Window Nation may be the company for you if you're looking for one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation caters to eco-conscious consumers by providing energy-efficient window offerings. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Londonderry?Window Nation does not display prices on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. You can ask for a free quote on its website for more information about pricing.
We try to stay unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Londonderry
Renewal by Andersen
Mechanicsburg, PA-
Educational Website
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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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Double-Hung
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Sliding Glass
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Glass Showers
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Commercial Windows
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Stained Glass
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Residential Windows
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Window Replacement
Window World of Central PA
York, PA-
Timely Service
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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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Window Replacement
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Sliding Glass
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Bay Windows
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Custom Window Designs
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Double-Hung
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Glass Showers
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Commercial Windows
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Residential Windows
Champion Replacement Windows of Baltimore
Rosedale, MD-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Double-Hung
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Window Replacement
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Bay Windows
Window Nation
Camp Hill, 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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Bay Windows
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Custom Window Designs
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Glass Showers
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Stained Glass
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Double-Hung
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Sliding Glass
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Residential Windows
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Energy-Efficient Options
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Window Replacement
Pella Windows & Doors of Harrisburg
Harrisburg, PA-
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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Window Replacement
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Bay Windows
Get Clear Windows, LLC
New Cumberland, PA-
Price Transparency
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Educational Website
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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
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Window Repair
Colebrook Construction, Inc.
Camp Hill, PA-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Custom Window Designs
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Glass Showers
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Window Replacement
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Fast Delivery
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Residential Windows
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Full-Service Installations
MI Windows & Doors LLC
Harrisburg, PA-
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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Window Replacement
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Double-Hung
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Energy-Efficient Options
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Residential Windows
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Custom Window Designs
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Sliding Glass
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Aluminum Window Frames
West Shore Home
Mechanicsburg, PA-
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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Glass Showers
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Window Replacement
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Commercial Windows
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Custom Window Designs
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Sliding Glass
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Double-Hung
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Residential Windows
HomeRite Windows and Doors
Mechanicsburg, PA-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Commercial Windows
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Double-Hung
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Residential Windows
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Tempered Glass
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Fast Delivery
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Window Replacement
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Custom Window Designs
Glass Doctor of Mechanicsburg, PA
Mechanicsburg, PA-
Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Residential Windows
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Commercial Windows
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Window Repair
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Double-Hung
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Stained Glass
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Custom Window Designs
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Glass Showers
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Window Replacement
Your Windows & Door
Carlisle Pike, 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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Window Replacement
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Custom Window Designs
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Sliding Glass
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Residential Windows
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Stained Glass
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Double-Hung
York Window Man
York, PA-
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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Double-Hung
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Fast Delivery
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Window Replacement
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Residential Windows
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Custom Window Designs
Hockley Glass & Mirror
Lebanon, PA-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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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
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Fast Delivery
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Glass Showers
Garrety Glass - Betterliving Sunrooms
Dallastown, PA-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
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Timely Service
Services Offered
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Commercial Windows
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Sliding Glass
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Custom Window Designs
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Fast Delivery
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Bay Windows
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Window Repair
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Window Replacement
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Glass Showers
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Residential Windows
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Double-Hung
The Glassmasters
Simpson Ferry Rd, PA-
Price Transparency
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Educational Website
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
Grand Opening Windows & Doors
New Kingstown, PA-
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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Stained Glass
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Window Replacement
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Sliding Glass
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Residential Windows
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Double-Hung
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Aluminum Window Frames
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Bay Windows
RFO Contracting
Lancaster, PA-
Price Transparency
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Free assessment
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Timely Service
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Good Customer Service
Services Offered
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Commercial Windows
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Window Replacement
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Glass Showers
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Fast Delivery
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Stained Glass
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Window Repair
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Custom Window Designs
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Residential Windows
Susquehanna Valley Door and Window
Lancaster, PA-
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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Window Replacement
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Custom Window Designs
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Bay Windows
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Double-Hung
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Sliding Glass
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Residential Windows
Red Rose Mirror & Glass Inc
Lancaster, PA-
Free assessment
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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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Window Replacement
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Sliding Glass
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Double-Hung
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Residential Windows
Calculate how much you can expect to pay for window installation and replacement in Londonderry, PA 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 Londonderry Saves You Money
By switching to energy-efficient windows, you can enjoy several benefits, including:
- Better temperature control in your home: Energy-efficient windows can reduce how hard your heating system needs to work to heat your home.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, particularly if your home is on the older side.
- More efficient energy use in your household: In Londonderry where the summers can get quite hot, energy-efficient windows decrease the amount of cool air that is lost through your windows, which makes it easier to keep your home cool.
- Reduce your carbon footprint: In Londonderry, you can reduce your indirect greenhouse gas emissions by about 286 pounds per year once you upgrade to energy-efficient windows.
Estimated Cost of Window Replacement in Londonderry
When looking into window installation, each company provides different services and costs. Let's take a look at some average costs and services.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range from $200 to $1,200. How much it will cost you varies based on several factors, like size, number of windows, material, type, the location of your home and more.
It's important to keep in mind that windows with the best efficiency may cost more initially but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save Londonderry homeowners $313+ a year when replacing single-pane windows.
Costs will also vary based on the material you want for your window frames. Aluminum frames are the least expensive. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
There are generally two kinds of window replacement services: full-frame and pocket installations.
A full-frame installation is a total window replacement. It involves taking out the old window, the windowsill, and the exterior and interior trim. It can also involve extra materials, including insulation and drip edges, which increase the overall cost of the project. It's also worth noting that it's not uncommon for homeowners to have to touch up the paint around the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the existing frame. Pocket installations are on the simpler end and won't carry as large a bill, but you can't do this kind of installment if you have any pre-existing rot or water damage.
If you're still trying to decide which kind of installation to get, you can talk to your installer and get their recommendation. The choice mostly depends on the age of your window frames 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 Londonderry
In our hunt to make your home improvements easier and more eco-friendly in Londonderry, the EcoWatch Reviews team examined many companies before deciding on these. Along with energy efficiency, we assessed several window installers in Londonderry and ranked them based on the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve Londonderry so you can find a quality window installation company near you.
Work Quality
We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer in our guide to make sure its contractors are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent online reviews to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across most other categories, including warranty, cost, quality of parts, quality of installation, professionalism and more.
Cost
This one is a give-and-take: similar to other services, cheap window companies won't always provide the highest quality service. Still, we want to make sure we're highlighting companies that provide a variety of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a significant investment, so you'll want to be certain that investment is well protected. Window installation companies that provide 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 installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Londonderry, PA Window Replacement FAQs
How much should a window install cost?
The national average cost of replacing one window is around $600 but can range from $200 to $1,200, depending on several factors. The price is generally influenced by the location of your property, the size of the window and the type and material of the window. Also, keep in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What kind of window is the most energy-efficient?
Generally, double-pane windows are more efficient than single-pane windows and windows that don't open are more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — this means they're certified energy-efficient by the U.S. Department of Energy.
Can you install your own windows?
If you're handy and have experience with similar home improvement projects, it's possible to install your own windows. However, if you don't have the time or skills, we recommend hiring a professional.
Should I replace all my windows at the same time?
If your windows are greater than 20 years old, it's probably time to replace all of them. At that point, they are usually less efficient, leakier and/or more damaged than new windows. Doing your windows all at once will involve less paperwork and less stress.