21 Best Window Replacement Companies in Lanham, MD (2023 Reviews)
Window Companies Near Me

If you're thinking of getting new windows, our guide to the best window installation companies can help.

We analyzed all the top window installers in Lanham and selected the top 21 based on:

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

By EcoWatch Local Advisors

Updated May 04, 2023

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.

Although eco-friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your home's efficiency can also have a considerable impact on home energy conservation. Potential leaks or drafts can lower your home's energy efficiency by up to 30%, according to the Department of Energy. In Lanham, that's nearly $283 a year that you could save on your power bills after making the switch.

Fortunately, helping you save energy with efficient windows also aligns with our goals of reducing energy usage for the environment.

Unlike other sites, EcoWatch ranks window companies based on energy efficiency while also taking into consideration cost, customer satisfaction and service area.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Manufactures products in-house
  • Member of US Green Building Council
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • Low prices relative to competitors
  • Large serice area
  • EnergyStar Partner
  • Quality of service will depend on your area

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Low number of customer complaints
  • Many years of experience
  • Manufactures products in-house
  • No lifetime warranty

Best Window Replacement Companies in Lanham

The EcoWatch team researched dozens of installers that serve the Lanham area to find the best window installation companies that fit our standards. The providers mentioned in this article scored best in our categories, including energy-efficient offerings, availability, customer service, price and more.

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 Manufactures products in-house
  • Pros icon Member of US Green Building Council
Cons:
  • Pros icon More expensive than competition

Renewal by Andersen offers the best availability in Lanham. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement business. Many positive reviews on customer review websites back the provider's reputation.

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

Renewal by Andersen is an Energy Star partner offering a variety of energy-efficient windows. 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 Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Lanham?

Prices aren't mentioned 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 receive a quote on the company's website.

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

Window World

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

Window World offers windows expertise in Lanham. This window installation company has been in business since 1995 and currently serves 200 locations nationwide.

If you're looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, this may be the right provider for you.

Energy Efficiency of Window World Windows

Its 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 be sure to mention that you want Energy Star windows when inquiring.

How much does Window World cost in Lanham?

While pricing is not available on Window World's website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate information.

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 Low number of customer complaints
  • Pros icon Many years of experience
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty

Aeroseal Windows has the best window installation for businesses in Lanham. Aeroseal has over 23 years of industry experience, and it currently serves 13 states and Washington D.C. Many positive reviews from customers online back the company's reputation.

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 available from Aeroseal Windows, 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 Lanham?

While pricing is not available on Aeroseal's website, it provides high-quality windows at a competitive price point. Requesting a free quote on its website is the best way to know for sure.

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 Lanham. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This window installation company has been operating since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by hundreds of positive reviews on customer review websites.

Window Nation may be the company for you if you're interested in one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.

Energy Efficiency of Window Nation Windows

Window Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want 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 Lanham?

Window Nation doesn't have any cost information available on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. You can request a free quote on its website for more information about the cost.

We've recommended providers with good reputations, but bear in mind that these are national companies, so the quality of service may vary depending on your local crew. We have tried to remain unbiased and transparent by mentioning pros and cons for every company we reviewed.

More Window Replacement Companies in Lanham

Safety Window Glass Repair LLC

Bethesda, MD
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Commercial Windows
  • Service icon Sliding Glass
  • Service icon Bay Windows
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Tempered Glass
  • Service icon Double-Hung
  • Service icon Full-Service Installations

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

VA Glass Doors and Window Repair

Bailey's Crossroads, VA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Sliding Glass
  • Service icon Commercial Windows
  • Service icon Tempered Glass
  • Service icon Aluminum Window Frames
  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: https://www.vaglassdoorsandwindowrepair.com/
Address: 3541 Carlin Springs Rd #190, Bailey's Crossroads, VA 22041
Phone: (703) 866-8167

Advanced Window & Glass Repair Of Falls Church

Arlington, VA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Full-Service Installations
  • Service icon Sliding Glass
  • Service icon Double-Hung
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Residential Windows
  • Service icon Tempered Glass
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs

Website: https://advancedwindowglassrepair.com/
Address: 1303 S Taylor St Suite 22, Arlington, VA 22204
Phone: (202) 660-1439

Advanced Window & Glass Repair, LLC

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

Services Offered

  • Service icon Sliding Glass
  • Service icon Energy-Efficient Options
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Tempered Glass
  • Service icon Full-Service Installations
  • Service icon Glass Showers
  • Service icon Commercial Windows

Website: https://advancedwindowglassrepair.com/
Address: 8855 Garland Ave Suite 201, Silver Spring, MD 20901
Phone: (301) 960-1343

Thompson Creek Window Company Manufacturing Center

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

Services Offered

  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Commercial Windows
  • Service icon Energy-Efficient Options
  • Service icon Fast Delivery

Website: https://www.thompsoncreek.com/
Address: 8100 Penn Randall Pl, Upper Marlboro, MD 20772
Phone: (301) 917-3467

Window Replacement DC - Bethesda

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

Services Offered

  • Service icon Commercial Windows
  • Service icon Bay Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Sliding Glass
  • Service icon Aluminum Window Frames
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: https://window-replacement-dc.com/bethesda/
Address: 6391 Arlington Rd #202, Bethesda, MD 20814
Phone: (702) 842-2495

BGV Construction & Windows LLC

Washington, DC
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Stained Glass
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://bgvconstruction.com/
Address: 1832 Kalorama Rd NW, Washington, DC 20009
Phone: (202) 952-1930

Medallion Security Door and Window Company

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

Services Offered

  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Commercial Windows
  • Service icon Fast Delivery
  • Service icon Double-Hung

Website: http://www.medallionsecurity.com/
Address: 2849 Kaverton Rd, Forestville, MD 20747
Phone: (301) 420-1800

Alliance Homes Inc Window Installation

Bethesda, MD
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Award-Winning

Services Offered

  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Bay Windows

Website: https://alliancehomes.us/
Address: 4905 Del Ray Ave, Bethesda, MD 20814
Phone: (301) 349-1678

Economy Glass LLC

Crofton, MD
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Award-Winning
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Commercial Windows
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Tempered Glass

Website: http://www.economyglass.com/
Address: 1651 Crofton Blvd # 15, Crofton, MD 21114
Phone: (301) 261-3770

Mr. Handyman of Anne Arundel and PG County

Millersville, MD
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Award-Winning

Services Offered

  • Service icon Glass Showers
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: https://www.mrhandyman.com/anne-arundel-ne-pg/
Address: 8229 Cloverleaf Dr Suite 435, Millersville, MD 21108
Phone: (410) 593-1456

American Home Center Inc.

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

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Aluminum Window Frames

Website: https://www.ahc-inc.net/
Address: 10778 Tucker St, Beltsville, MD 20705
Phone: (301) 220-1144

Remodel Rx Premier Roofing Windows Doors Siding

Laurel, MD
3.9
★★★★★
  • Pros icon Award-Winning
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Energy-Efficient Options
  • Service icon Fast Delivery
  • Service icon Residential Windows

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

Metropolitan Glass Services

Washington, DC
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Tempered Glass
  • Service icon Sliding Glass
  • Service icon Commercial Windows
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Glass Showers

Website: http://www.metropolitanglassrepair.com/
Address: 5142 MacArthur Blvd NW, Washington, DC 20016
Phone: (202) 617-8035

DC Glass Doors And Window Repair

601 13th St NW Suite 900, DC
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Fast Delivery
  • Service icon Sliding Glass
  • Service icon Residential Windows
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Double-Hung

Website: http://www.dcglassdoorsandwindowrepair.com/
Address: South #90105, 601 13th St NW Suite 900, Washington, DC 20005
Phone: (202) 844-4421

Quality Window & Door Inc

Beltsville, MD
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Fast Delivery
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.qualitywindowanddoorinc.com/
Address: 6700 Distribution Dr, Beltsville, MD 20705
Phone: (301) 960-5864

Home Services at The Home Depot

Columbia, MD
3.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Glass Showers
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Fast Delivery
  • Service icon Stained Glass

Website: https://www.homedepot.com/l/Columbia-MD/MD/Columbia/21046/2575/services
Address: 9051 Snowden River Pkwy, Columbia, MD 21046
Phone: (410) 824-1635

Safety Glass & Doors

Washington, DC
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Fast Delivery
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Commercial Windows

Website: http://www.dcglassdoorsandwindowrepair.com/
Address: 1415 Rhode Island Ave NW, Washington, DC 20009
Phone: (202) 321-8300

Metropolitan Window & Glass Repair

Kensington, MD
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service

Services Offered

  • Service icon Sliding Glass
  • Service icon Tempered Glass
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Fast Delivery
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Residential Windows

Website: http://www.metropolitanwindowandglassrepair.com/
Address: 3766 Howard Ave Suit 205, Kensington, MD 20895
Phone: (301) 755-8060

Select Glass & Windows Inc

Arlington, VA
3.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Award-Winning

Services Offered

  • Service icon Double-Hung
  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Commercial Windows
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: https://selectglasswindows.com/
Address: 2776 S Arlington Mill Dr # 245, Arlington, VA 22206
Phone: (703) 309-4118

Window Expert

Crofton, MD
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Commercial Windows
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Fast Delivery
  • Service icon Bay Windows

Website: https://croftonwindowreplacement.com/
Address: 1707 Aberdeen Ct, Crofton, MD 21114
Phone: (410) 914-1290

How Installing Energy-Efficient Windows in Lanham Saves You Money

By upgrading to energy-efficient windows, you and your family can take advantage of several benefits, such as:

  • Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes tend to have windows that are outdated, leaky or potentially even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
  • Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can cut your indirect greenhouse gas emissions by about 12%, according to Energy Star.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
  • Save on electricity bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of residential energy use. Upgrading to energy-efficient windows can help decrease that number, which helps you save more on your bills.

Estimated Cost of Window Replacement in Lanham

Each window replacement company provides varying services and has varying price points depending on several factors.

How Much Do New Windows Cost?

The national average cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. But prices vary remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door installations, which carry a higher price tag.

With windows, efficiency is one of the most important factors for most homeowners. Windows with higher efficiency may cost more initially, but by increasing the efficiency of your home — particularly during the summer and winter — they can give you decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Lanham homeowners $283+ per year after replacing single-pane windows.

We advise requesting free quotes from multiple window companies to find the right windows and the company that works best for your budget.

What Services do Window Installers Offer?

In general, there are two kinds of window installation services you can get: full-frame and pocket installations.

A full-frame installation replaces the complete window, including the sill, frame, trim and the window panes. As this type of installation requires more time, it will cost more than a pocket installation. A pocket installation involves replacing a window without replacing the frame. So, instead of tearing out the whole window and rebuilding it, the contractor 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 you need, you can consult with your provider and get their advice. The decision mostly depends on the age of your window frames and if there's any damage present.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Manufactures products in-house
  • Member of US Green Building Council
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • Low prices relative to competitors
  • Large serice area
  • EnergyStar Partner
  • Quality of service will depend on your area

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Low number of customer complaints
  • Many years of experience
  • Manufactures products in-house
  • No lifetime warranty

How We Choose the Best Window Installers in Lanham

EcoWatch differs from other reviewers since we're examining these companies through a sustainability lens. We have assessed the top window replacement companies in Lanham primarily based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy Star certified windows have been shown to cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

Since this is a guide for Lanham, we paid more attention to companies that cover the city. There are certainly reputable providers that didn't make our list because of the low odds that they would serve the average homeowner in Lanham.

Work Quality

We're willing to bet that you're looking for a company to do a great job installing windows. We've vetted each company featured on this list to ensure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent customer feedback to find the companies with the most customer satisfaction. Customer satisfaction may be the most important factor, as it reflects the quality of services across most other categories, including quality of parts, quality of installation, warranty, cost, professionalism and more.

Cost

This one is a give-and-take: as with 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 provide a spectrum of price and financing options so they're accessible to most homeowners.

Warranty

As discussed, windows are a significant investment, so you'll want to be certain that investment is well protected. Window installation companies that have 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 quite some time. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

Lanham, MD Window Replacement FAQs

What is the average cost to install new windows in a home?

The typical cost to replace a window ranges from $450 to $650. There are several factors that influence how much it costs, which include the number of windows, how energy-efficient the windows are, your property's location, the materials used in designing the windows, styles and sizes of windows and local labor costs.

What type of window is the most energy-efficient?

Generally, double-pane windows will be more efficient than single-pane windows and windows that don't open will be more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models with the blue Energy Star certification — 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 know how to replace a window, you may be able to install your own windows. But if you don't have the time or skills, we don't recommend doing it on your own.

How long does window installation take?

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

What time of year is the best time to replace my 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 ensure 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.

Follow us