30 Best Window Replacement Companies in Dover, PA (Mar 2023)
Window Companies Near Me
Thinking about replacing your windows? We've got you covered in this guide to the top window installation companies.
We analyzed all the top window installers in Dover and selected the top 30 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
Whether you're updating for aesthetics or have damaged windows, windows play a key role in conserving your home's energy. If your windows are outdated or damaged, you could be losing 25-30% of your home's heat or cool air out of them.
That's also bad news for the environment because the additional energy used by outdated windows increases your carbon footprint.
We've made a list of the top installation companies to help you in your research, so you can not only enjoy brand new windows, but also save money on your power bills.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Member of US Green Building Council
- Award-winning company
- No lifetime warranty
Best Affordability
Window World
- Great industry reputation
- Low prices relative to competitors
- EnergyStar Partner
- Quality of service will depend on your area
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Custom Designs
- Manufactures products in-house
- Not ideal for residential installations
Best Window Replacement Companies in Dover
The EcoWatch Reviews team evaluated dozens of window providers in Dover to find the best ones for our readers. The providers mentioned in this article scored the best in our review categories, which include energy-efficient offerings, local expertise, customer service, availability, price and more.

Renewal by Andersen
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Manufactures products in-house
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Member of US Green Building Council
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Award-winning company
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No lifetime warranty
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation industry, and it has established itself as one of the most respected companies in Dover.
It has established itself as a company 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 WindowsThere are a wide variety 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 Dover?Prices aren't listed on Andersen's website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to know for sure is to get a free quote from the company.

Window World
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Great industry reputation
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Low prices relative to competitors
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EnergyStar Partner
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Quality of service will depend on your area
Window World offers windows expertise in Dover. Window World has around 27 years of experience in the window replacement sector. Hundreds of positive reviews from customers online back the provider's reputation.
You may want to consider going with Window World if you're interested in 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 and has a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so make 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 Dover?Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. You can request 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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Custom Designs
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Manufactures products in-house
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Not ideal for residential installations
Aeroseal Windows provides the best window installation for businesses in Dover. Aeroseal has been in the window industry for about 23 years. The company has a lot of glowing reviews from customers online.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows' commitment to sustainability can be seen in its 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 Dover?While prices are not available on Aeroseal's website, it provides high-quality windows at a competitive price point. 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 is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has around 16 years of experience in the industry, and it currently provides services to residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by all the positive reviews from customers online.
If you're looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, Window Nation may be the right company for you.
Energy Efficiency of Window Nation WindowsWindow Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. 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 Dover?Pricing information is not available on Window Nation's website, as the cost of window replacement varies greatly based on how many and what type(s) of windows you need. However, 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. Requesting a free quote on its website is the best way to know for sure.

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 Dover. This provider has 20 years of experience in the windows business, and it has established itself as one of the best companies in Dover. The provider has hundreds of glowing reviews from customers online.
You may want to consider going with Universal if you're interested in a installer that 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 windows are Energy Star certified, so make sure you mention that you'd like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Dover?Though pricing is 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. Requesting a free quote on its website is the best way to get more accurate information.
We've recommended providers with good reputations, but keep in mind some national companies have independently owned locations in Dover, so the quality of service may differ depending on your local crew. We have tried to be unbiased and transparent by describing pros and cons for every company we reviewed.
More Window Replacement Companies in Dover
PJ Fitzpatrick
Harrisburg, PA-
Good Customer Service
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Dependable Service
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Price Transparency
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Helps Educate Customers
Services Offered
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Glass Showers
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Architectural Glass
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Custom Window Designs
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Double-Hung
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Sliding Glass
Renewal by Andersen of Central Pennsylvania
Mechanicsburg, PA-
Locally Recognized for Quality
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No-fee Quotes
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Price Transparency
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Gives to charity
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
TC Backer Construction, LLC
Dover, PA-
No-Hassle Pricing
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No-fee Quotes
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Locally Recognized for Quality
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Excellent Customer Service
Services Offered
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Residential Windows
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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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Stained Glass
REDDCO Inc.
Lewisberry, PA-
Excellent Customer Service
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Free Quotes
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Dependable Service
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Helps Educate Customers
Services Offered
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Residential Windows
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Fast Delivery
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Tempered Glass
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Custom Window Designs
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Double-Hung
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Sliding Glass
Infinity from Marvin - Homespire Windows & Doors
New Cumberland, PA-
Consistent Workmanship
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Excellent Customer Service
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Reliable Appointment Windows
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No-fee Quotes
Services Offered
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Custom Windows
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Residential Windows
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Sliding Glass
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Double-Hung
Window Nation
Camp Hill, PA-
Good Customer Service
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Dependable Service
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Free Quotes
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Award-Winning
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
Window World of Central PA
York, PA-
Free Quotes
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Dependable Service
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Reliable Appointment Windows
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Price Transparency
Services Offered
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Custom Windows
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Sliding Glass
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Business Windows
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Double-Hung
American Home Contractors
Hanover, PA-
Helps Educate Customers
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Award-Winning
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
Window World of Central PA
Elizabethtown, PA-
Reliable Appointment Windows
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Dependable Service
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Free Quotes
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Sliding Glass
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Commercial Windows
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Double-Hung
Hershocks Inc
Harrisburg, PA-
Excellent Customer Service
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Reliable Appointment Windows
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No-fee Quotes
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Dependable 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
Lancaster Building Supply Windows Doors & More, LLC
Lancaster, PA-
Excellent Customer Service
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No-Hassle Pricing
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Dependable Service
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Helps Educate Customers
Services Offered
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
Zephyr Thomas Home Improvement Company
Lancaster, PA-
Award-Winning
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Educational Website
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Free Quotes
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No-Hassle Pricing
Services Offered
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Residential Windows
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Commercial Windows
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Full-Service Installations
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Custom Windows
Susquehanna Valley Door and Window
York, PA-
Good Customer Service
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Helps Educate Customers
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Dependable Service
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No-Hassle Pricing
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
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Bay & Bow Windows
Robert G. Miller
Hanover, PA-
Educational Website
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Price Transparency
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Excellent Customer Service
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Fast Delivery
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Aluminum Window Frames
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Double-Hung
L & L Window Fashions
Harrisburg, PA-
Reliable Service
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No-fee Quotes
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Price Transparency
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Locally Recognized for Quality
Services Offered
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Custom Windows
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Aluminum Window Frames
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Energy-Efficient Options
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Sliding Glass
Install America
10+ years in business · Harrisburg, PA-
Helps Educate Customers
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No-fee Quotes
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No-Hassle Pricing
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Sliding Glass
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Full-Service Installations
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Custom Windows
Pella Windows & Doors of Harrisburg
Harrisburg, PA-
Price Transparency
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Educational Website
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Free Quotes
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Excellent Customer Service
Services Offered
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Architectural Glass
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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
Rick's Home Improvements
York, PA-
Excellent Customer Service
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Price Transparency
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Reliable Service
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Free Quotes
Services Offered
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Residential Windows
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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
Residential Glass & Mirror
Shrewsbury, PA-
Excellent Customer Service
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Helps Educate Customers
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Price Transparency
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No-fee Quotes
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
Eagle Building Solutions LLC
Lititz, PA-
Helps Educate Customers
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Dependable Service
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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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Residential Windows
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Commercial Windows
Long Home Products
Middletown, PA-
Good Customer Service
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Price Transparency
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No-fee Quotes
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Award-Winning
Services Offered
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Custom Window Designs
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Residential Windows
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Double-Hung
Arocon Roofing and Construction
Westminster, MD-
Good Customer Service
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No-fee Quotes
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Educational Website
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Award-Winning
Services Offered
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Custom Window Designs
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Business Windows
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Double-Hung
RFO Contracting General Contractor Services
Lancaster, PA-
Award-Winning
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Price Transparency
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No-fee Quotes
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Educational Website
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
Debra's Glass Inc
Dallastown, PA-
Helps Educate Customers
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Good Customer Service
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Free Quotes
Services Offered
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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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Double-Hung
Windows and More - York
York, PA-
No-fee Quotes
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No-Hassle Pricing
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Good Customer Service
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Sliding Glass
HomeRite Windows and Doors
Hampden Township, PA-
No-Hassle Pricing
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Free Quotes
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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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Fast Delivery
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Sliding Glass
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Double-Hung
West Shore Home
Mechanicsburg, PA-
No-fee Quotes
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Helps Educate Customers
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Custom Windows
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Glass Showers
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Sliding Glass
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Double-Hung
Hockley Glass & Mirror
Lebanon, PA-
Helps Educate Customers
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No-Hassle Pricing
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No-fee Quotes
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Good Customer Service
Services Offered
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Custom Window Designs
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Architectural Glass
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Business Windows
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Double-Hung
Red Rose Mirror & Glass Inc
Lancaster, PA-
No-Hassle Pricing
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Excellent Customer Service
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Free Quotes
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Dependable Service
Services Offered
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Custom Window Designs
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Glass Showers
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Sliding Glass
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Double-Hung
York Associates PA
Red Lion, PA-
Free Quotes
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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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Aluminum Window Frames
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Business Windows
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Full-Service Installations
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Custom Window Designs
How Installing Energy-Efficient Windows in Dover Saves You Money
When you upgrade to energy-efficient windows, you may see several benefits, such as:
- Save money on energy bills: Because energy-efficient windows reduce the amount of energy used to heat or cool your home, the switch can help you save about $315 annually on your energy bills in Dover.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
- Reduce your carbon footprint: In Dover, you can lower your indirect greenhouse gas emissions by about 286 pounds per year after you switch to energy-efficient windows.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, particularly if you have an older home.
Estimated Cost of Window Replacement in Dover
Each window installation company provides varying services and has varying prices based on several factors.
How Much Do New Windows Cost?
Though the typical of replacing a single window is around $600, it can range from $200 to $1,200. But costs will vary considerably based on the number of windows you need, your location, the quality of your products and the current condition of your home. A lot of window companies also offer door installations and other add-ons like baths, shutters, coating and more. Additional services will increase your overall project costs.
With windows, efficiency is the most important factor for many homeowners. High efficiency windows may cost more initially, but by increasing the efficiency of your home — especially during the summer and winter — they can give you decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Dover homeowners $315+ a year after replacing single-pane windows.
We recommend requesting free quotes from multiple window companies to find the one that works best for you.
What Services do Window Installers Offer?
In regard to window replacements, there are typically two kinds that your provider will have: full-frame and pocket installations.
A full-frame installation replaces the entire window, such as the sill, frame, trim and the window panes. Because this type of installation requires more time and labor, it will cost more than a pocket installation. A pocket installation entails replacing a window within the existing frame, which is generally less expensive than a full-frame installation.
If you're hiring a reputable window installation company, your company can advise you on the best type for your project. In Dover, the decision will mostly depend on how much damage there is currently and the age and condition of your existing frames.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Member of US Green Building Council
- Award-winning company
- No lifetime warranty
Best Affordability
Window World
- Great industry reputation
- Low prices relative to competitors
- EnergyStar Partner
- Quality of service will depend on your area
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Custom Designs
- Manufactures products in-house
- Not ideal for residential installations
How We Choose the Best Window Installers in Dover
EcoWatch reviews are different from most reviews because we're examining these companies through a sustainability lens. We've assessed the best window installers in Dover mostly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to reduce your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is self-explanatory, but we've chosen to highlight window installation companies that serve the Dover area so you can find the right window installation company near you.
Work Quality
When it comes to new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand you opt for. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another super important review factor. If most customers don't have positive feedback about their service from a certain company, it won't be featured on EcoWatch.
Cost
This one is a give-and-take: as with other services, cheap window installers won't always provide the most quality service. On the other hand, we want to make sure we're highlighting companies that offer a variety of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a serious investment, so you'll want to make sure that investment is well 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 installation companies that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Dover, PA Window Replacement FAQs
What is the typical cost to install windows?
The typical cost of replacing one window can range between $450 and $650. There are many factors that influence the cost, such as the materials used in designing the windows, styles and sizes of windows, the number of windows, local labor costs, your property's location and how energy-efficient the windows are.
What are the most common kinds of replacement windows?
The most common kinds of windows for homes are slider windows, bay windows, picture windows, awning windows, transom windows, double-hung and single-hung windows and casement windows.
When should I use a window installation company?
Unless you're handy and have all of the necessary tools to replace your own windows, we recommend hiring a professional installer. The process of installing windows is complex and can take anywhere from four to six hours for a single window. Although it's tempting to try to save money by doing it yourself, hiring a company is a faster, more efficient and safer option.
How long does it take to install windows?
Each window takes around 30 minutes to install depending on the kind of window. However, the window installation can take two days or more if you need to have a lot of windows installed.
What time of year is a good time to replace my windows?
Replacement windows can be installed any time of the year, but warmer weather is typically better. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into the house, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.