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Best Window Replacement Companies in Gaithersburg, MD

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Last Updated October 31, 2023

Replacement windows can protect your home from water damage, enhance its energy efficiency, and provide it with someadditional aesthetic appeal. A professional window company can help you make the most of your new windows so you can make them work for you.

Top Pick
  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience
Best Financing
  • Full-service installation
  • In-house, U.S.-made products
  • More than 70 years of experience
Most Customizable
  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience

Top 10 Gaithersburg Window Installation Companies

By working with one of these top companies for window replacement in Gaithersburg, you'll reap the benefits of new windows in no time.

Gaithersburg residents can trust the This Old House Reviews Team to provide authoritative, up-to-date window provider recommendations. To discover the best providers, we emphasize these five factors:

Champion Restoration & Construction LLC Logo

Champion Restoration & Construction


Services Offered

Window Install & Replacement Residential Windows Full-Service Installations Commercial Windows


  • Good customer service
  • Educational website
  • Price transparency
14102 Sullyfield Cir Suite #2200, Chantilly, VA 703-718-6777
Window World of Washington DC Logo

Window World of Washington DC


Services Offered

Double-Hung Sliding Glass Doors Window Install & Replacement Bay Windows Storm Doors


  • Good customer service
  • Educational website
  • Free assessment
4116 Walney Rd Suite J, Chantilly, VA 703-378-7999
Safety Window Glass Repair LLC Logo

Safety Window Glass Repair


Services Offered

Commercial Windows Tempered Glass Skylights Window Install & Replacement Glass Doors Mirrors Glass Showers Custom Glass Window Repair Glass Repair Double-Hung Triple Pane Glass Sliding Glass Doors Bay Windows


  • Good customer service
  • Educational website
  • Free assessment
7529 Spring Lake Dr Unit C1, Bethesda, MD 202-460-8860
Pella Windows & Doors of Gaithersburg Logo

Pella Windows & Doors of Gaithersburg


Services Offered

Window Install & Replacement Fiberglass Frames Wood Frames Double-Hung Glass Doors Window Repair Sliding Glass Doors Pella Bay Windows


  • Educational website
  • Good customer service
  • Free assessment
202 Perry Pkwy Suite 6, Gaithersburg, MD 202-810-6722
MDVA Windows Logo

MDVA Windows


Services Offered

Window Install & Replacement Window Repair


  • Price transparency
  • Free assessment
  • Educational website
12828 Clarksburg Square Rd Unit 304, Clarksburg, MD 202-820-4850
Window Expert Logo

Window Expert


Services Offered

Commercial Windows Bay Windows Glass Doors Sliding Glass Doors Fiberglass Frames Energy-Efficient Options Custom Window Designs Window Install & Replacement Double-Hung Window Repair


  • Good customer service
  • Timely service
  • Price transparency
19420 Ridgecrest Dr, Germantown, MD 240-774-2060
R&H Glazing Inc Logo

R&H Glazing


Services Offered

Bay Windows Commercial Windows Window Repair Glass Doors Sliding Glass Doors Custom Window Designs Fiberglass Frames Window Install & Replacement Energy-Efficient Options Vinyl Frames


  • Good customer service
  • Free assessment
  • Price transparency
10129 River Rd B 204, Potomac, MD 301-804-6459
Artisan Windows Logo

Artisan Windows


Services Offered

Andersen Energy-Efficient Options Window Install & Replacement


  • Free assessment
  • Price transparency
  • Good customer service
15416 Tierra Dr, Silver Spring, MD 301-476-1735
Metropolitan Window & Glass Repair Logo

Metropolitan Window & Glass Repair


Services Offered

Window Install & Replacement Tempered Glass Mirrors Glass Showers Commercial Windows Window Repair Glass Repair Glass Doors Sliding Glass Doors


  • Good customer service
  • Price transparency
  • Timely service
3766 Howard Ave Suit 205, Kensington, MD 301-755-8060

More Local Window Companies

Capital Remodeling, Inc.

User Reviews: 4.1/5

555 Quince Orchard Rd #210
Gaithersburg, MD 20878

Window Replacement DC - Bethesda

User Reviews: 4.6/5

6391 Arlington Rd #202
Bethesda, MD 20814


User Reviews: 4.7/5

10822 Childs Ct
Silver Spring, MD 20901

Gaithersburg Glass Company

User Reviews: 3.5/5

19200 Chennault Way
Gaithersburg, MD 20879

Window Replacement DC - Reston

User Reviews: 4.8/5

1890 Preston White Dr #383
Reston, VA 20191

Window Replacement DC - Tysons

User Reviews: 4.6/5

7901 Jones Branch Dr #619
Tysons, VA 22102

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Facts about Gaithersburg
Average Max Temp: 63°F
Average Min Temp: 46°F
Average Daily Sunlight: 54%
Average Annual Snowfall: 21.4"
Average Monthly Precipitation: 3.58"
Annual Energy Efficient Windows Savings: $294

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

How To Choose a Window Company in Gaithersburg

Each window company has different offerings and approaches. To ease the company search, keep these factors in mind:

Window Cost by Type

When you're shopping for new windows, it's important to remember that there's more to cost than just purchase price. You want a window with top-notch quality and durability. Choosing economy windows could actually raise your overall cost, due to their shorter lifespan and more intensive maintenance needs. The age of your home, together with the sizes, styles, and materials of windows you opt for, can influence pricing. Transom windows are inexpensive with their simple size and straightforward form factor, while new skylights cost more to prepare for and install. If you're undecided, a window specialist can help you decide which options are ideal for your home.

This table shows average prices for various window types to give you an idea of what to expect.

Window Types Average Cost
Arched $232-$1427
Awning $336-$937
Bay $775-$5751
Custom $345-$958
Casement $268-$1555
Double-hung $125-$809
Egress $230-$574
Glass Block $46-$581
Picture $201-$1491
Single-hung $91-$1533
Skylight $115-$1384
Sliding $264-$1342
Storm $54-$379
Transom $281-$587

Window Material Cost

Materials also help determine a window's cost. You might choose a material based on your desired look, your energy efficiency goals, and the local climate. For example, wood windows can give your home an organic design without breaking the bank, but you'll have to invest more toward maintenance. Aluminum and composite windows cost more up-front, but they're incredibly durable against the elements, so you'll spend far less on maintenance.

Window Types Average Cost
Aluminum $54-$1533
Composite $553-$1244
Fiberglass $91-$775
Vinyl $186-$1725
Wood $276-$1555

Other Window Replacement Costs

Your contractor will factor the price for your windows and the value of their services into its total estimate. Make sure to factor in the cost of labor, warranties, and any other additional costs that your project may require.

Experience and Training

Peruse a company's website and chat with a representative to learn more about its product and service offerings, pricing, and guarantees. Many companies also keep online photo galleries that highlight past projects.

Ensure that the company focuses on window replacement. The more specialized training its staff has, and the longer it has been active, the more likely it will provide excellent service.

Licensing and Credentials

Window installers and subcontractors in Maryland must carry a license from the state's Home Improvement Commission. Each candidate for a license must pass a test on business and trade practices, submit business filings, verify insurance information, and demonstrate financial responsibility.

Types of Windows Offered

There are numerous replacement window types you can choose from, and it's vital to find a company that focuses on installing the ones you want. Check a company's website and reviews for any of these types:

  • Awning
  • Bay
  • Bow
  • Casement
  • Crank-out
  • Custom
  • Double- or single-hung
  • Egress
  • Garden
  • Jalousie
  • Picture
  • Sliding
  • Skylight
  • Specialty
  • Storm
  • Transom
  • Vent
Finally, pay close attention to the framing materials that an installer uses. Each frame material has a different life span, price point and energy efficiency level. A company will usually specify whether the windows they set up use metal, vinyl, wood, fiberglass, or composite.

Customer Feedback

Reading other customers' stories is one of the smartest ways to screen different window companies. Trustworthy sources for customer reviews include Google, Yelp, and Trustpilot Speak with people you know who have used a company you're interested in, and ask a representative for a copy of its reference list.

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Frequently Asked Questions About Window Replacement in Gaithersburg

Why should I hire a professional to install or replace my windows?

By working with an expert, you don't need to worry about measurement missteps or not having the right tools. A window installation team is well-equipped with the right supplies and skills to do the job safely and precisely. You can also get fast, informed answers to your questions and customized assistance to maximize your new windows' potential.

Does window replacement involve pulling permits?

Window replacement may require obtaining permits, based on your local building codes and regulations. Some cities mandate permits for window replacement projects if they involve structural changes or alterations to the window openings. We recommend you check with your local building department or consult a professional before starting any window replacement work.

Do window installers also work with blinds and coverings?

Maybe. Many installers work with both windows and blinds, so you can design a window covering solution that adds aesthetic appeal and boosts your new windows' performance. However, based on your location, blind work can require a different license that a company might not have. During your company search, inquire with each representative about blind installation. If a company does not offer it, they may delegate the task to a different company or recommend a retailer that can help you with blinds.

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More Window Resources

National Windows Company Ranking Methodology


Energy Star