20 Best Window Companies in Dundalk, MD (2025 Reviews)
If you’re thinking about upgrading to new windows, our guide to the top window installation companies can help.
We analyzed all the top-rated window companies in Dundalk and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A guide on the top window installation companies in Dundalk may not seem like the most captivating article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might realize. Drafty windows can make your home uncomfortable in the summer or winter.
Replacement windows improve the insulation in your home, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
Because windows are so important for your home, picking the best company for you is a big choice to make. That’s why the EcoWatch team has curated this list of the top window installation companies, so you can more easily make an informed decision.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Dundalk
The EcoWatch team assessed dozens of installers across the country to find the best window companies for our readers. The providers mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World provides windows expertise in Dundalk. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the window replacement 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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Window World cost in Dundalk?Prices aren’t available on Window World’s website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can get a quote on the company’s website.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen provides the best availability in Dundalk. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window replacement business.
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 WindowsA handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019. Not all of Andersen’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Dundalk?Prices aren’t available 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. If you’d like more accurate information, you can get a quote on the company’s website.

Aeroseal Windows
Many years of experience
Great industry reputation
Low number of customer complaints
Manufactures products in-house
Custom Designs
No lifetime warranty
Not ideal for residential installations
Aeroseal Windows provides the best window installation for businesses in Dundalk. 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. Aeroseal has about 23 years of experience in the window replacement business.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe 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. Not all of Aeroseal’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Dundalk?Prices aren’t available on Aeroseal’s website, but it provides high-quality windows at a competitive price point. If you’d like more accurate information, you can get a quote on the company’s website.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation provides the best residential windows in Dundalk. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has about 16 years of experience in the window replacement business.
It has established itself as a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsEach 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. Not all of Window Nation’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Window Nation cost in Dundalk?Prices aren’t available on Window Nation’s 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. If you’d like more accurate information, you can get a quote on the company’s website.
Please note that the following companies are national, meaning the quality of customer service may vary depending on your local crew. We have tried to stay unbiased and transparent by including pros and cons for every company.
More Window Companies in Dundalk
Renewal by Andersen of the Capital Region
Jessup, MDEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Double-Hung
Skylights
Bay Windows
Glass Doors
Window Replacement/Installation
Champion Replacement Windows of Baltimore
Rosedale, MDFree assessment
Sunrooms
Price Transparency
Single-source accountability
Good Customer Service
Products made in the USA
Services Offered
Window Replacement/Installation
Bay Windows
Double-Hung
Glass Doors
Window Nation
Glen Burnie, MDPrice Transparency
Free assessment
Educational Website
Services Offered
Glass Doors
Wood Frames
Triple Pane Glass
Vinyl Frames
Energy-Efficient Options
Bay Windows
Double-Hung
Window Replacement/Installation
Custom Window Designs
Obrebski Brothers Windows and Doors
Nottingham, MDEducational Website
Family service
Financing options available
Free assessment
Lifetime guarantee
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
AC Matthews, Roofing & Exteriors
Towson, MDHigh-quality materials
Educational Website
Price Transparency
Energy-efficient windows
All-inclusive repair and maintenance
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Garrety Glass - Betterliving Sunrooms
Cockeysville, MDFree assessment
Educational Website
Price Transparency
Timely Service
Good Customer Service
Services Offered
Glass Showers
Mirrors
Glass Doors
Custom Glass
Bay Windows
Window Replacement/Installation
Glass Repair
American Remodel
Annapolis, MDFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Capitol Improvements - Roofing & Siding Contractor
Bowie, MDEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
KELEMER BROTHERS REPLACEMENT WINDOWS
Silver Spring, MDPrice Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Anderson Glass Contractors - Frameless Shower Door, Glass Door in Alexandria VA
Marlow Heights, MDFree assessment
Good Customer Service
Educational Website
24-hour emergency availability
Free in-person consultation
Price Transparency
Custom glass services
Services Offered
Glass Doors
Mirrors
Custom Glass
Glass Repair
Glass Showers
Window Replacement/Installation
Bay Area Exteriors
Easton, MDTimely Service
Educational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Old Town Glass & Window Repair
Alexandria, VAGood Customer Service
Affordable prices
Free assessment
Large online project gallery
Price Transparency
Third-generation glassier
Services Offered
Glass Repair
Window Replacement/Installation
Custom Glass
Mirrors
Glass Doors
Glass Showers
DISTRICT CAPITOL GLASS LLC
Alexandria, VAEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Glass Repair
Window Replacement/Installation
Window Repair
Screen Repair
Mirrors
Glass Doors
Glass Showers
Tri County Windows and Siding
Vienna, VAPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Custom Window Designs
Double-Hung
Glass Doors
Bay Windows
Skylights
Window Replacement/Installation
Susquehanna Valley Door and Window
York, PAGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Double-Hung
Energy-Efficient Options
Glass Doors
C2 Operations
Leesburg, VAFree assessment
Price Transparency
Educational Website
Services Offered
Glass Doors
Double-Hung
Window Replacement/Installation
Bright Side Exteriors
Centreville, VAFree assessment
Services Offered
Window Replacement/Installation
Window Repair
Glass Doors
Milcon Design & Build
Waterford, VAFree assessment
Educational Website
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Advanced Window & Glass Repair, LLC
Woodbridge, VAEducational Website
Free assessment
Timely Service
Good Customer Service
Price Transparency
Services Offered
Mirrors
Window Replacement/Installation
Tempered Glass
Energy-Efficient Options
Window Repair
Glass Doors
Vinyl Frames
Bay Windows
Fiberglass Frames
Custom Glass
Glass Showers
Double-Hung
Glass Repair
Home Exteriors LLC.
Manassas, VAPrice Transparency
Free assessment
Timely Service
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Calculate how much you can expect to pay for window installation and replacement in Dundalk, MD 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 Dundalk Saves You Money
Energy-efficient windows can offer benefits in more than one way. Here are a few reasons you may want to take the plunge and make the switch:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Save on energy bills: Once you install energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% when you install Energy Star certified windows. In Dundalk, that’s about 249 pounds per year on average.
Estimated Cost of Window Replacement in Dundalk
When looking into window installation, each company offers different services and prices. Let’s take a look at some average costs and services.
How Much Do New Windows Cost?
Typically, homeowners in Dundalk can anticipate that most window installations will cost between $250 and $1,200, with the most common installations sitting at about $600. This is because of the fact that the cost of window installations are based on a variety of factors specific to your home, like the size, material and number of windows you need to replace, as well as where your property is located.
Whether or not you opt for energy-efficient windows is another factor that will affect the cost. These will usually cost more than other windows, but on the other hand, you can save about $285 a year on your energy bills in Dundalk.
Another factor that influences the overall cost is the material of the frame you select. Aluminum frames are usually the least pricey and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.
What Services do Window Installers Offer?
In general, there are two types of window replacement services you can get: full-frame and pocket installations.
A full-frame installation is a replacement of the total window. It involves taking out the old window, the windowsill, and the exterior and interior trim. It also involves extra materials, including insulation and drip edges, which raise the total cost of the project. Also worth noting: you may have to touch up the paint surrounding the window after a full-frame installation. A pocket installation entails replacing a window within the existing frame, which is usually cheaper than a full-frame installation.
If you’re unsure which type of window installation service you should get, your installer should be able to assist you. Generally, the decision is influenced by factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Dundalk
In our search to find the most reliable, eco-friendly window installers in Dundalk, the EcoWatch team chose the above companies as the top window installation companies in the city. Along with energy efficiency, we assessed several window installers in Dundalk and ranked them based on the following methodology:
Service Area
Since this is a guide for Dundalk, we gave more points to companies that provide services to the city. There are certainly other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in Dundalk.
Work Quality
When choosing new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the brand of window you choose. 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 very important review factor. If most customers don’t have nice feedback about their service from a certain installer, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to other services, cheap window companies won’t always provide the most quality service. On the other hand, we want to ensure we’re highlighting companies that provide a wide range of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed previously, windows are a considerable investment, so you’ll want to make sure that investment is protected. Window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for a while. Window installers that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Dundalk, MD Window Replacement FAQs
How much should window installation cost?
The average cost of replacing a window ranges between $450 and $650. There are several factors that affect the cost, such as the materials used in designing the windows, local labor costs, styles and sizes of windows, the number of windows, how energy-efficient the windows are and your property’s location.
Which kind of window is the best?
A window’s energy efficiency is influenced by a variety of factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.
Can you install your own windows?
If you’re handy and have the time and patience to do the job right, it’s possible to install your own windows. However, if you don’t have the time or know-how, we recommend getting a professional to do it for you.
Should I replace all my windows at once?
If you want to get more efficient windows and save money on energy costs, replacing all the windows at the same time is the only way to gain that benefit. However, if you have only a few windows that are broken or leaky, you can replace just those.