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Certified Best Pick®
Companies with this badge have met the qualification criteria for Best Pick certification and are backed by the Best Pick Guarantee.
4th year as a Best Pick
Best Pick Guaranteed Licensed Insured Workers' Comp
We offer premium windows and doors specifically designed for the Baltimore climate. All products are installed by highly skilled professionals and are covered by one of the most comprehensive warranties in the industry. We're best known for the attention we pay to every detail.


Window Nation installs custom vinyl windows and doors for residents of Northern Virginia, Maryland, DC, Northern Delaware, Pennsylvania, and New Jersey.
301-242-5410
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4th year as a Best Pick
Best Pick Guaranteed Licensed Insured Workers' Comp
Our goal is always 100 percent total customer satisfaction. We eliminate the middleman by manufacturing the windows ourselves. We are completely accountable to our customers from their initial inquiry to project completion, and it's backed by 43 years in business and our No-Hassle Warranty and Buyer Protection Guarantee.

Thompson Creek Window Company designs, builds, and installs replacement windows in a variety of styles developed specifically for the mid-Atlantic climate.
301-485-7618
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3rd year as a Best Pick
Best Pick Guaranteed Licensed Insured Workers' Comp
Family owned and working with our neighbors one at a time!

The Whiting Company offers window replacement, door installation and replacement, free estimates, custom designs and measurements, made-to-order products, and access to nearly every manufacturer.
443-505-7648
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3rd year as a Best Pick
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Here to serve.

Roof Right, Inc., offers window and door services, including new construction, replacement, and full tear-out applications.
443-505-7654
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3rd year as a Best Pick
Best Pick Guaranteed Licensed Insured Workers' Comp
For over seven decades, Long Home Products has helped families enjoy safer, more beautiful homes. Quality products, outstanding craftsmanship, and dedication to customer satisfaction are at the core of our philosophy. We work with customers to make home improvement projects affordable with competitive rates and payment plans.

Long Home Products installs and replaces double-hung, casement, awning, bow, and bay windows as well as entry, patio, and storm doors.
443-429-0140
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3rd year as a Best Pick
Best Pick Guaranteed Licensed Insured Workers' Comp
Nu Look has been the go-to company for more than 40,000 homeowners. We ensure every customer receives the same excellent service with our 13-step production process, 3D rendering, and line-by-line pricing so you know exactly what you're paying for. We offer flexible financing options to make tackling your next project easy.

Nu Look Home Design, Inc. installs and replaces energy-efficient windows and doors.
667-407-1012
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2nd year as a Best Pick
Best Pick Guaranteed Licensed Insured Workers' Comp
Since 1987, Unicorp customers have experienced the difference doing business with people who care and have the history to prove it. Our window, siding, and roofing crews use precision and care, and we back our products with superior customer service. See why thousands have put their trust in us.

Unicorp Home Energy Services installs ENERGY STAR-rated custom replacement windows and Provia entry and sliding glass doors.
301-820-7079
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2nd year as a Best Pick
Best Pick Guaranteed Licensed Insured Workers' Comp
American Home Contractors has been in business for over 35 years, providing exterior services and upgrades to Maryland, Washington D.C., and Northern Virginia homes. American Home prides itself in customer satisfaction and guarantees to do the best job possible when remodeling your home.

American Home Contractors provides exterior household services, including window, entry door, roofing, gutter, and siding installation and replacement.
410-324-6766
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About Window and Door Replacement Companies in Baltimore

In Maryland, you can see a wide variety of beautiful home styles, including colonial, Queen Anne, Cape Cod, or more contemporary and modern styles.

If you need new windows and doors, a Best Pick professional can guide you through the process of selecting options that match the style of your home and your budget.

Baltimore Window and Door Replacement Services

Benefits of replacing windows and doors

Doors and windows need to be sturdy and well-sealed in order to protect your home from the elements. If your home’s windows and exterior doors are old, they may not seal well and allow drafts or leaks into your home. Additionally, if they are made of wood, they are susceptible to termite damage, rot, and water damage.

Installing new windows and doors can improve your home’s energy efficiency, which reduces strain on your HVAC system and decreases energy bills.

If you’re looking to boost curb appeal, new windows and doors can really transform the look of your home’s exterior. A huge range of styles and colors are available to make your home stand out.

Window replacement

There are two options available for window replacement:

  • Insert replacement windows
  • Full-frame replacement


Insert window replacement involves replacing just the window unit and does not include replacement of the window frame or the trim.

Full-frame replacement means the whole window, including the frame, flashing, and trim, is replaced.

If you have wood window frames, you may want to consider full installation of new windows, especially if your wood window frames have been affected by moisture, rot, or termites.

Another choice you might need to make when replacing windows is whether to install single- or double-pane windows. Double-pane windows have better insulating properties than single-pane windows. Talk to your window installation professional about the pros and cons of single-, double-, and triple-pane windows.

Window materials

Vinyl windows require very little maintenance, are cost effective, and provide good insulation. They come in a wide range of colors and styles.

Aluminum and steel frame windows are low-maintenance, highly durable, and resistant to impact. They withstand temperature fluctuations better than wood and vinyl windows.

Composite windows offer the look of wood combined with the maintenance requirements of vinyl. They are made of plastics or fiberglass mixed with wood materials. They are durable and resistant to rot and moisture.

Fiberglass windows are low-maintenance, very durable, and resistant to extreme temperature fluctuations.

Wood windows, while attractive, require regular maintenance. If they are not well-maintained, they can deteriorate and rot from water damage.

Door replacement

You may want to replace your door to increase energy efficiency, improve your home’s security, or create a new look for your home’s exterior. Regardless of the reason for your door replacement, you’re sure to find a door that fits your needs and budget.

If you’re looking for something extra special, consider a custom-made door for your home. If you have a historic home or there is a unique design you’d like featured on your door, some companies can fabricate doors exactly to your specifications.

Exterior door materials

Fiberglass doors, which are durable and provide good insulation, are growing in popularity. They are available in many different designs and can easily be painted or stained. This material does not warp, rot, or crack.

Insulated steel doors are cost effective, require little maintenance, and provide great insulation.

Wood doors look great, block sound well, and can be trimmed to fit into an existing doorway. Wood doors are available in a wide range of styles and designs. They do require periodic maintenance to maintain their look and ensure they function properly.

The Best Picks for Baltimore Window Replacement Companies

Finding an experienced, reputable window and door contractor isn’t easy. That’s why the survey team at Best Pick Reports reaches out to Central Maryland homeowners each year to find the top window and door installation companies in your area.

To ensure they are providing top-notch customer service and excellent workmanship, Best Pick companies are fully vetted on a yearly basis. Our company qualification process means that the companies we recommend are the best of the best, and we’re proud to present the results of our surveys in a format that is clear and easy to navigate.

When you work with a Best Pick window and door replacement contractor in Central Maryland, you’ll have a great experience—we guarantee it.