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Best Window Replacement Companies in Gaithersburg, MD

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Written By Max Peterson | Last Updated: February 05, 2024

Replacement windows can protect your home from water damage, enhance its energy efficiency, and provide it with some additional 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:

  • Energy-efficiency guarantees
  • Professional experience and licensure
  • Customer reviews and recommendations
  • Product quality
  • Services and warranties

Champion Restoration & Construction LLC Logo

Champion Restoration & Construction

Based on 27 customer reviews.

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 championrandc.com
Window World of Washington DC Logo

Window World of Washington DC

Based on 418 customer reviews.

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 windowworlddc.com
Pella Windows & Doors of Gaithersburg Logo

Pella Windows & Doors of Gaithersburg

Based on 301 customer reviews.

Services Offered

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


  • Educational website
  • Good customer service
  • Free assessment
202 Perry Pkwy Suite 6, Gaithersburg, MD 202-810-6722 pellabranch.com
Window Expert Logo

Window Expert

Based on 29 customer reviews.

Services Offered

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


  • Educational website
  • Free assessment
  • Timely service
19420 Ridgecrest Dr, Germantown, MD 240-774-2060 germantownwindowreplacement.com
R&H Glazing Inc Logo

R&H Glazing

Based on 17 customer reviews.

Services Offered

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


  • Price transparency
  • Good customer service
  • Educational website
10129 River Rd B 204, Potomac, MD 301-804-6459 potomacwindowreplacement.com
Safety Window Glass Repair LLC Logo

Safety Window Glass Repair

Based on 95 customer reviews.

Services Offered

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


  • Free assessment
  • Price transparency
  • Good customer service
7529 Spring Lake Dr Unit C1, Bethesda, MD 202-460-8860 safetywindowglassrepair.com
MDVA Windows Logo

MDVA Windows

Based on 57 customer reviews.

Services Offered

Window Install & Replacement Window Repair


  • Price transparency
  • Good customer service
  • Educational website
12828 Clarksburg Square Rd Unit 304, Clarksburg, MD 202-820-4850 mdvawindows.com
Metropolitan Window & Glass Repair Logo

Metropolitan Window & Glass Repair

Based on 25 customer reviews.

Services Offered

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


  • Price transparency
  • Timely service
  • Educational website
3766 Howard Ave Suit 205, Kensington, MD 301-755-8060 metropolitanwindowandglassrepair.com
Artisan Windows Logo

Artisan Windows

Based on 15 customer reviews.

Services Offered

Energy-Efficient Options Window Install & Replacement Andersen


  • Timely service
  • Educational website
  • Free assessment
15416 Tierra Dr, Silver Spring, MD 301-476-1735 artisanwindows.net

More Local Window Companies

Capital Remodeling, Inc.

User Reviews: 4.3/5 

555 Quince Orchard Rd #210
Gaithersburg, MD 20878

Gaithersburg Glass Company

User Reviews: 3.8/5 

19200 Chennault Way
Gaithersburg, MD 20879

Window Replacement DC - Bethesda

User Reviews: 4.7/5 

6391 Arlington Rd #202
Bethesda, MD 20814


User Reviews: 4.7/5 

10822 Childs Ct
Silver Spring, MD 20901

Roofing & More, Inc.

User Reviews: 5/5 

609 Carlisle Dr
Herndon, VA 20170

Pella Windows & Doors of Tysons Corner

User Reviews: 5/5 

8150 Leesburg Pike Suite 140
Vienna, VA 22182

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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

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.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

More Window Resources

National Windows Company Ranking Methodology


Energy Star