20 Best Window Companies in Gaithersburg, MD (2024 Reviews)

Thinking about improving your property’s value? The best window replacement companies can help.

We analyzed all the top-rated window companies in Gaithersburg and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated June 24, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

A guide on the best window replacement companies in Gaithersburg may not seem like the most captivating article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. Potential leaks or drafts can lower your home’s energy efficiency by up to 30%, according to the Department of Energy. In Gaithersburg, that’s an average of $294 a year that you could save on your energy bills after making the switch.

Installing efficient windows on your house can help you save money every month on your power bills — and you can help the environment, too.

Unlike other review sites, EcoWatch ranks window replacement companies on energy efficiency while also considering cost, customer satisfaction and service area.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best Window Installation & Replacement Companies in Gaithersburg

The EcoWatch Reviews team researched dozens of companies that serve the Gaithersburg area to find the top window installation companies by our standards. The companies we’ve included in this article scored best in our categories, which include energy-efficient offerings, availability, price, customer service and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in Gaithersburg. This window installation company has been in business since 1995 and currently provides services to 200 locations nationwide.

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 Windows

There are a wide range of window types that Window World offers, 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 Gaithersburg?

Window World doesn’t have any cost information displayed on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on pricing, you can get a quote from the company.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen has the best availability in Gaithersburg. This window installation company has been in business since 1995 and currently provides services to nearly every state except Mississippi and West Virginia.

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 Windows

There are a wide range of window types that Renewal by Andersen offers, 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 Gaithersburg?

Andersen doesn’t have any cost information 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 detailed information on pricing, you can get a quote from the company.

Aeroseal Windows logo
FAST QUOTE
as little as 30 seconds
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Many years of experience
  • Pros icon Great industry reputation
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Custom Designs
Cons:
  • Pros icon No lifetime warranty
  • Pros icon Not ideal for residential installations

Aeroseal Windows has the best window installation for businesses in Gaithersburg. This window installation company has been in business since 1999 and currently provides services to 13 states and Washington D.C.

It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

There are a wide range of window types that Aeroseal Windows offers, some of which are Energy Star products. 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 Gaithersburg?

Aeroseal doesn’t have any cost information displayed on its website, but it provides high-quality windows at a competitive price point. For more detailed information on pricing, you can get a quote from the company.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation has the best residential windows in Gaithersburg. This window installation company has been in business since 2006 and currently provides services to residents within 75 miles of its showrooms, which are in 13 states.

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 Windows

There are a wide range of window types that Window Nation offers, some of which are Energy Star products. 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 Gaithersburg?

Window Nation doesn’t have any cost information displayed 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. For more detailed information on pricing, you can get a quote from the company.

We’ve recommended companies with good reputations, but note that some national companies have independently owned locations in Gaithersburg, so the quality of service may depend on your local crew. We have tried to remain unbiased and transparent by including pros and cons for each company reviewed.

More Window Companies in Gaithersburg

Renewal by Andersen of the Capital Region

North Bethesda, MD
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Skylights
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Bay Windows

Website: https://www.renewalbyandersen.com/window-company/085-capital-region/about-us
Address: 5081 Nicholson Ln, North Bethesda, MD 20852
Phone: (301) 816-3221

Champion Replacement Windows of Baltimore

Rosedale, MD
3.3
★★★★★
  • Pros icon Sunrooms
  • Pros icon Single-source accountability
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Products made in the USA
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Double-Hung

Website: https://www.championwindow.com/Baltimore/
Address: 23 Fontana Ln, Rosedale, MD 21237
Phone: (410) 202-8636

Window Nation

Lorton, VA
4.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs

Website: https://www.windownation.com/northern-va-showroom
Address: 8198 Terminal Rd #105, Lorton, VA 22079
Phone: (703) 372-4540

Pella Windows & Doors of Gaithersburg

Gaithersburg, MD
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Wood Frames
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Glass Doors

Website: http://www.pellabranch.com/washington-dc/showrooms/gaithersburg
Address: 202 Perry Pkwy Suite 6, Gaithersburg, MD 20877
Phone: (202) 810-6722

MDVA Windows

Clarksburg, MD
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Window Repair
  • Service icon Glass Doors

Website: http://www.mdvawindows.com/
Address: 12828 Clarksburg Square Rd UNIT 304, Clarksburg, MD 20871
Phone: (240) 887-2908

Safety Window Glass Repair LLC

Bethesda, MD
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Repair
  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Custom Glass
  • Service icon Window Repair
  • Service icon Energy-Efficient Options
  • Service icon Skylights
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Triple Pane Glass
  • Service icon Mirrors

Website: https://safetywindowglassrepair.com/
Address: 7529 Spring Lake Dr Unit C1, Bethesda, MD 20817
Phone: (202) 460-8860

Capital Remodeling, Inc.

Gaithersburg, MD
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation

Website: http://www.capitalremodeling.com/
Address: 555 Quince Orchard Rd #210, Gaithersburg, MD 20878
Phone: (800) 310-7154

KELEMER BROTHERS REPLACEMENT WINDOWS

Silver Spring, MD
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Lifetime warranty
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon No sales pressure
  • Pros icon Over 50,000 projects completed

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: http://www.kelemerbrothers.com/
Address: 10822 Childs Ct, Silver Spring, MD 20901
Phone: (410) 299-0038

Gaithersburg Glass Company

Gaithersburg, MD
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Storm/Impact Windows
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation
  • Service icon Custom Glass

Website: http://www.gburgglass.com/
Address: 19200 Chennault Way, Gaithersburg, MD 20879
Phone: (301) 948-2623

Chase Remodeling

Burtonsville, MD
4.5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors

Website: https://www.chaseremodeling.com/
Address: 15430 Old Columbia Pike # D, Burtonsville, MD 20866
Phone: (301) 476-8488

Window Expert

Germantown, MD
3.1
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Window Repair
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: https://germantownwindowreplacement.com/
Address: 19420 Ridgecrest Dr, Germantown, MD 20874
Phone: (240) 774-2060

Pella Windows & Doors of Tysons Corner

Vienna, VA
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Wood Frames

Website: http://www.pellabranch.com/northern-virginia/showrooms/vienna/
Address: 8150 Leesburg Pike Suite 140, Vienna, VA 22182
Phone: (301) 354-3689

Artisan Windows

Silver Spring, MD
3.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: http://www.artisanwindows.net/
Address: 15416 Tierra Dr, Silver Spring, MD 20906
Phone: (301) 476-1735

Tri County Windows and Siding

Vienna, VA
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Skylights
  • Service icon Custom Window Designs

Website: http://www.tricountywindowsva.com/
Address: 200 Lawyers Rd NW #1629, Vienna, VA 22183
Phone: (703) 472-6330

Window and Door Showplace Inc

McLean, VA
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Glass Doors

Website: http://www.wdshowplace.com/
Address: 6832 Old Dominion Dr Suite 103, McLean, VA 22101
Phone: (703) 506-3650

Remodel Rx

Laurel, MD
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung

Website: https://remodelrx.com/
Address: 10533 Gorman Rd, Laurel, MD 20723
Phone: (443) 266-8044

Home Services at The Home Depot

Aspen Hill, MD
2.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Storm/Impact Windows
  • Service icon Screen Repair
  • Service icon Custom Window Designs
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Glass Showers

Website: https://www.homedepot.com/l/Aspen-Hill/MD/Aspen-Hill/20906/2558/services
Address: 14000 Georgia Ave, Aspen Hill, MD 20906
Phone: (301) 304-6179

Homefix Custom Remodeling

Laurel, MD
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options

Website: https://homefixcustomremodeling.com/columbia-md/
Address: 14880 Sweitzer Ln STE B, Laurel, MD 20707
Phone: (410) 346-3996

Blaine Window & Door

Silver Spring, MD
3.3
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.blainewindowanddoor.com/
Address: 2410 Linden Ln, Silver Spring, MD 20910
Phone: (301) 565-4949

Pella Windows & Doors of Beltsville

Beltsville, MD
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: https://www.pellabranch.com/annapolis/showrooms/beltsville/
Address: 12100 Baltimore Ave #1, Beltsville, MD 20705
Phone: (301) 685-1715
Gaithersburg Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Gaithersburg, MD using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

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 Gaithersburg Saves You Money

When you switch to energy-efficient windows, you may see several benefits, including:

  • Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can improve the insulation in your home and also help increase the value of your home if you decide to sell.
  • Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
  • Save money on power bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Installing energy-efficient models can help reduce that amount, therefore saving you about 12% more on your bills.
  • Reduce your carbon footprint: By using less energy once switching to Energy Star certified windows, you’ll also be decreasing your carbon dioxide emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Gaithersburg

When considering window installation, each company offers varying services and costs. Let’s go over some typical costs and services.

How Much Do New Windows Cost?

Though the typical cost to replace a single window is about $600, it can range anywhere from $200 to $1,200. How much it will cost varies depending on several factors, like size, material, type, number of windows, the location of your home and more.

Keep in mind that energy-efficient windows may come at a higher price point, but Energy Star predicts the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when installing double-pane, clear glass windows. These savings vary based on your local climate, energy rates and individual home characteristics.

Requesting free quotes from several companies is the best way to figure out which one will work best for your budget.

What Services do Window Installers Offer?

There are typically two kinds of window replacement services: full-frame and pocket installations.

A full-frame installation replaces the entire window, including the sill, frame, trim and the window panes. As this type of installation is more involved, it will be more expensive than a pocket installation. Pocket installations (or retrofits) involve installing a new window within the existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any damage or rot, you will most likely need a full-frame installation instead.

If you’re not sure which window installation service you need, your installer should be able to help you out. Typically, 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

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

How We Choose the Best Window Installers in Gaithersburg

EcoWatch reviews differ from most reviews, as we’re examining these companies through a sustainability lens. We’ve decided to evaluate the best window installation companies in Gaithersburg primarily based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows have been shown to reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve a wide variety of states and cities so you can find the right window installation company near you.

Work Quality

When selecting new windows, the quality and range of services often plays just as important of a role in overall efficiency 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: similar to most services, cheap window installation companies are not going to provide the most quality service. Still, we want to make sure we’re highlighting companies that offer a spectrum 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 be certain that investment is well protected. Window installation companies that have 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 a good track record in the industry. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

Gaithersburg, MD Window Replacement FAQs

What is the typical cost to replace windows in a home?

The national average cost of installing a window is around $600 but can range between $200 and $1,200, based on a variety of factors. The price is usually influenced by the size of the window, the location of your property and the type and material of the window. Also, keep in mind that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.

What type of window is the best for energy efficiency?

Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open are more efficient than windows that do. If you want 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 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 don’t recommend it.

How long does window installation typically take?

Since the average installation time of a window is 30 minutes, about 16 windows can be installed during an 8-hour work day.