25 Best Window Replacement Companies in Thurmont, MD (2023 Reviews)
Window Companies Near Me
When the time comes to replace your windows, our guide to the best window installation companies can help you find the right provider for you.
We analyzed all the top window installers in Thurmont and selected the top 25 based on:
-
Customer reviews
-
Window replacement expertise
-
Popularity with home-owners like you
Please enter a valid 5-digit zip code!

Updated March 14, 2023
Why you can trust EcoWatch
The EcoWatch team is all about helping Thurmont homeowners find eco-conscious solutions for their homes. Damaged or outdated windows can cost you in power bills. As a matter of fact, the Department of Energy estimates that about 30% of your house's heat or cool air could be lost through your windows.
Replacement windows improve the insulation in your home, not only making you more comfortable during extreme temperatures, but also saving you some money and helping the environment.
So if you're constructing a new home, renovating or changing out old windows in Thurmont, this guide is the best place to get started.
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Great industry reputation
- Manufactures products in-house
- No lifetime warranty
Best Window Replacement Companies in Thurmont
The EcoWatch Reviews team evaluated dozens of installers in Thurmont to find the top window installation companies for our readers. We assessed the installers on energy-efficient offerings, price, customer service, local experience, coverage area and more.

Window World
-
EnergyStar Partner
-
Large serice area
-
Low prices relative to competitors
-
Quality of service will depend on your area
Window World offers windows expertise in Thurmont. This provider has 27 years of experience in the windows business, and it has become one of the best companies in Thurmont. Its reputation is backed by all the positive reviews on customer review websites.
It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsThere are a wide variety of window types available from Window World, some of which are Energy Star products. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Thurmont?Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to receive a free quote from the company.

Renewal by Andersen
-
Award-winning company
-
Great industry reputation
-
Manufactures products in-house
-
More expensive than competition
Renewal by Andersen offers the best availability in Thurmont. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation business, and it has become one of the most respected companies in Thurmont. The provider has hundreds of glowing reviews from customers on online review websites.
Andersen may be the company for you if you want 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 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 offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Thurmont?Andersen doesn't have any prices displayed 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. For more accurate information on the cost, you can ask for a quote from the company.

Aeroseal Windows
-
Low number of customer complaints
-
Great industry reputation
-
Manufactures products in-house
-
No lifetime warranty
Aeroseal Windows has the best window installation for businesses in Thurmont. Aeroseal has over 23 years of experience in the industry, and it currently serves 13 states and Washington D.C.
You may want to consider opting for Aeroseal if you're looking for a installer 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 be sure to mention that you'd like Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Thurmont?Aeroseal does not outline prices on its website, but it provides high-quality windows at a competitive price point. You can request a free quote on its website for more information about pricing.

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 is 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 industry for about 16 years. The provider has a lot of glowing 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 provider for you.
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 offerings 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 Thurmont?Window Nation does not detail 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. Getting a free quote on its website is the best way to know for sure.
We try 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 Thurmont
Care Contracting
Leesburg, VA-
Price Transparency
-
Good Customer Service
-
Reliable Service
-
Free Quotes
Services Offered
-
Residential Windows
-
Architectural Glass
-
Tempered Glass
-
Custom Windows
-
Commercial Windows
-
Double-Hung
-
Sliding Glass
S&K Roofing, Siding and Windows
Eldersburg, MD-
Locally Recognized for Quality
-
No-fee Quotes
-
Dependable Service
-
Excellent Customer Service
Services Offered
-
Residential Windows
-
Architectural Glass
-
Energy-Efficient Options
-
Custom Windows
-
Business Windows
-
Double-Hung
-
Sliding Glass
Mr. Handyman of Greater Frederick and Hagerstown
Frederick, MD-
No-Hassle Pricing
-
Locally Recognized for Quality
-
No-fee Quotes
-
Educational Website
Services Offered
-
Custom Window Designs
-
Residential Windows
-
Commercial Windows
-
Double-Hung
Glass & Mirror Services, Inc.
Frederick, MD-
Price Transparency
-
Good Customer Service
-
Free Quotes
-
Consistent Workmanship
Services Offered
-
Residential Windows
-
Glass Showers
-
Custom Windows
-
Aluminum Window Frames
-
Business Windows
-
Double-Hung
-
Stained Glass
American Home Contractors
Hanover, PA-
Educational Website
-
Price Transparency
-
Good Customer Service
-
Locally Recognized for Quality
Services Offered
-
Doors
-
Custom Windows
-
Aluminum Window Frames
-
Commercial Windows
S&K Roofing, Siding and Windows
Eldersburg, MD-
Price Transparency
-
Good Customer Service
-
Locally Recognized for Quality
-
Helps Educate Customers
Services Offered
-
Custom Window Designs
-
Residential Windows
-
Energy-Efficient Options
-
Commercial Windows
Diligent Roofing & Siding
Mt Airy, MD-
No-Hassle Pricing
-
Helps Educate Customers
-
Free Quotes
-
Excellent Customer Service
Services Offered
-
Residential Windows
-
Fast Delivery
-
Custom Window Designs
-
Business Windows
-
Double-Hung
The Neikirk Company LLC
Hagerstown, MD-
Helps Educate Customers
-
Award-Winning
-
Free Quotes
-
No-Hassle Pricing
Services Offered
-
Residential Windows
-
Custom Window Designs
-
Aluminum Window Frames
-
Business Windows
-
Sliding Glass
Window World of Frederick County
Frederick, MD-
No-Hassle Pricing
-
No-fee Quotes
-
Gives to charity
-
Helps Educate Customers
Services Offered
-
Custom Windows
-
Sliding Glass
-
Double-Hung
Absolute Home Solutions, Inc.
Middletown, MD-
Arrives on Time
-
Dependable Service
-
Good Customer Service
-
Free Quotes
Services Offered
-
Custom Windows
-
Residential Windows
-
Commercial Windows
Potomac View Energy
Sykesville, MD-
Consistent Workmanship
-
No-fee Quotes
-
Good Customer Service
-
Arrives on Time
Services Offered
-
Custom Window Designs
-
Sliding Glass
-
Double-Hung
American Awnings and Replacement Windows
Shippensburg, PA-
Helps Educate Customers
-
Arrives on Time
-
Dependable Service
-
Excellent Customer Service
Services Offered
-
Custom Window Designs
-
Architectural Glass
-
Double-Hung
ARCH Exteriors LLC
Ijamsville, MD-
Good Customer Service
-
Award-Winning
-
Reliable Service
-
Educational Website
Services Offered
-
Custom Window Designs
Capital Remodeling, Inc.
Gaithersburg, MD-
Good Customer Service
-
Free Quotes
-
Consistent Workmanship
-
Helps Educate Customers
Services Offered
-
Custom Windows
-
Residential Windows
-
Energy-Efficient Options
-
Double-Hung
Robert G. Miller
Hanover, PA-
Dependable Service
-
No-fee Quotes
-
Educational Website
-
No-Hassle Pricing
Services Offered
-
Custom Window Designs
-
Fast Delivery
-
Aluminum Window Frames
-
Double-Hung
Tnt Service Group Inc
Frederick, MD-
Dependable Service
-
Helps Educate Customers
-
Excellent Customer Service
-
Free Quotes
Services Offered
-
Custom Windows
-
Residential Windows
-
Aluminum Window Frames
-
Business Windows
Pella Windows & Doors of Gaithersburg
Gaithersburg, MD-
Price Transparency
-
No-fee Quotes
-
Excellent Customer Service
-
Helps Educate Customers
Services Offered
-
Architectural Glass
-
Custom Windows
-
Full-Service Installations
-
Double-Hung
-
Sliding Glass
Kline Awning & Window
Boonsboro, MD-
Good Customer Service
-
Price Transparency
-
Helps Educate Customers
-
No-fee Quotes
Services Offered
-
Residential Windows
-
Custom Windows
-
Full-Service Installations
-
Commercial Windows
-
Double-Hung
MDVA Windows
Clarksburg, MD-
Excellent Customer Service
-
No-fee Quotes
-
Helps Educate Customers
-
Price Transparency
Services Offered
-
Custom Window Designs
-
Residential Windows
-
Business Windows
Arocon Roofing and Construction
Westminster, MD-
No-fee Quotes
-
Good Customer Service
-
Helps Educate Customers
-
Locally Recognized for Quality
Services Offered
-
Custom Windows
-
Commercial Windows
-
Double-Hung
Eastern Exteriors, LLC
Ijamsville, MD-
No-Hassle Pricing
-
Excellent Customer Service
-
Reliable Service
-
Free Quotes
Services Offered
-
Custom Windows
Mackey's Glass Service
Philadelphia Ave, PA-
Dependable Service
-
Excellent Customer Service
-
Price Transparency
-
Free Quotes
Services Offered
-
Glass Showers
-
Custom Windows
-
Residential Windows
-
Commercial Windows
EXTERIORMAX
Clarksburg, MD-
No-Hassle Pricing
-
Consistent Workmanship
-
No-fee Quotes
-
Good Customer Service
Services Offered
-
Custom Windows
-
Energy-Efficient Options
-
Full-Service Installations
-
Business Windows
Bealing Roofing and Exteriors, Inc.
Hanover, PA-
Price Transparency
-
No-fee Quotes
-
Helps Educate Customers
-
Good Customer Service
Services Offered
-
Custom Windows
-
Residential Windows
-
Business Windows
-
Sliding Glass
Maryland Windows Doors Roofs
Frederick, MD-
Good Customer Service
-
Helps Educate Customers
-
No-Hassle Pricing
Services Offered
-
Fast Delivery
-
Custom Window Designs
-
Aluminum Window Frames
-
Double-Hung
-
Sliding Glass
How Installing Energy-Efficient Windows in Thurmont Saves You Money
There are several perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the change are the following:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Save on electricity bills: Installing energy-efficient windows reduces your energy bills by about 12% since you use less energy.
- Reduce your carbon footprint: In Thurmont, you can lower your indirect greenhouse gas emissions by about 405 pounds per year after you upgrade 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 your home is on the older side.
Estimated Cost of Window Replacement in Thurmont
Windows come in all shapes and sizes, so costs and services will differ tremendously. Here are the typical costs and the primary services that you can find from window installation companies.
How Much Do New Windows Cost?
According to our market research, the average cost of installing a single window is about $600. However, window installation costs can range from $200 to $1,200 per window. But costs will differ significantly depending on the number of windows you need, your location, the quality of your products and the current condition of your home. Many window companies also offer replacement door installations and other add-ons like baths, shutters, coating and more. These extra services will increase overall project costs.
Whether or not you want to install energy-efficient windows is another factor that will determine the cost. These will typically cost more than other windows, but on the other hand, you can save about $294 a year on your energy bills in Thurmont.
We recommend requesting free quotes from multiple window installers to find the right windows and the company that works best for you.
What Services do Window Installers Offer?
There are typically two types of window replacement services: full-frame and pocket installations.
A full-frame installation is a replacement of the total window. It involves taking out the old window, the sill, and the exterior and interior trim. It can also involve extra materials, such as insulation and drip edges, which increase the total cost of the project. It's also worth noting that you may have to touch up the paint around the window after a full-frame installation. A pocket installation entails installing a new window within the old frame. This means instead of tearing out the whole window and rebuilding it, the window installer will just slide the replacement window (also called a retrofit or insert window) into the frame.
If you're still debating which type of installation to get, you can talk to your provider and get their recommendation. The choice mostly depends on how old the frames are and if there's any damage.
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Great industry reputation
- Manufactures products in-house
- No lifetime warranty
How We Choose the Best Window Installers in Thurmont
In our search to find the most reliable, eco-friendly window installers in Thurmont, the EcoWatch team chose the above companies as the best window installation companies in the city. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings based on the following methodology:
Service Area
Since this is a guide for Thurmont, we gave more points to companies that serve the city. There are certainly other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Thurmont.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each company included on this list to ensure its technicians are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don't have nice things to say about their service from a certain company, it won't be featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed, windows are a sizable investment, so you'll want to make sure that investment is protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Thurmont's climate, homeowners need to be wary of water damage, rot and low efficiency. We factored in local experience to reflect the ability of Thurmont window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Thurmont, MD Window Replacement FAQs
What is the typical cost to replace windows?
The typical cost of replacing a single window can range from $450 to $650. There are many factors that influence the price, including styles and sizes of windows, your property's location, the number of windows, how energy-efficient the windows are, local labor costs and the materials used in designing the windows.
What are the most common types of replacement windows?
There are several different types of windows you can get for your house, such as double-hung and single-hung windows, picture windows, bay windows, casement windows, transom windows, slider windows and awning windows.
Can you replace your own windows?
If you're handy and know how to replace a window, you may be able to install your own windows. But if you don't have the time or know-how, we recommend getting a professional to do it for you.
When is the best time of year to replace windows?
Replacement windows can be installed during any season, but autumn might be best. Regardless of when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into your house, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.
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. By that point, they are often less efficient, draftier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less time.