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    Average homeowner rating
  • Verified reviews icon706
    Verified window services reviews

Top-Rated Window pros in North Potomac - Updated Nov 2026

Avatar for Zen Windows of Washington DC
Zen Windows of Washington DC
5.0(
134
)
New Windows - 6 +New Windows - 3-5New Windows - Multiple

Serving North Potomac, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1997

Free estimates

Warranties offered

"The process with Zen Windows from start to finish was exemplary. David, the sales rep, the second measurer, office staff, James the production manager and Scott the owner could not have been more pleasant. We replaced 7 really bad windows and have just a few others to replace in addition to a new front door. The installers respected our home, did an excellent job from start to finish, couldn't be happier with the whole experience with Zen Windows!"
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+27

Response time2 days
18 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Windows Cleaning Services
Windows Cleaning Services
4.7(
308
)
Window Cleaning

Serving North Potomac, MD and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: True professional

"Excellent experience! They did an amazing job with our windows (inside and out), screens and window sills. I just keep admiring my windows and how clean they are now. Highly recommend!"
Response time10 hrs
Response rate92%
68 neighbors recently requested a quote
Avatar for Unicorp Home Energy Services
Unicorp Home Energy Services
4.9(
630
)
New Windows - 6 +New Windows - 2 - For BusinessNew Windows - 3-5 - For Business+3 more

Serving North Potomac, MD and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"I am very fussy and frequently critical, yet I have only the best things to say about Unicorp window replacement. The owner came to my home - on time - to explain all the options and costs for replacing my windows. It didn't feel like a sales pitch, but more like a discussion of what was best for my home. Unicorp is a local company and makes their own windows, so I knew if there was a problem, there would be someone nearby to call. My windows were installed on time and the crew was very professional. They are very hard workers; they didn't even take a lunch break. I was assured that my new windows would not let the cold air in, as my old windows did. I'll have to wait for winter to test this out, but I have confidence that since these windows were custom-made for me, they fit more tightly. It has been a pleasure to find a local company that has an excellent product, is honest, and reasonably priced."
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+10

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for VIRGINIA WINDOW CLEANERS INC
VIRGINIA WINDOW CLEANERS INC
4.6(
76
)
Window Cleaning

Serving North Potomac, MD and surrounding areas

Approved

In business since 1963

Free estimates

Credit card accepted

"This company was thorough, professional and punctual. The gentlemen doing the work were friendly, explained everything in advance and did exactly what they said they would do - spotless windows, sills and screens, inside and out!! I would DEFINITELY recommend them for anyone's window cleaning needs!! A+++"
Response time1 day
11 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for A.R. Glass Repairs
A.R. Glass Repairs
5.0(
22
)
Window Glass - Install or Replace

Serving North Potomac, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Excellent work. The person who assisted us was gruff and no-nonsense, but professional. He asked that we send a photo of the window, which we did. He then came out and measured the window. He came back a couple of days later, and completed the work. The window looks fantastic, and we are very pleased with his work."
Response time1 day
Response rate100%
Recommended by85%of homeowners
Avatar for A Clear View Window Cleaning, LLC
A Clear View Window Cleaning, LLC
5.0(
22
)
Window Cleaning

Serving North Potomac, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Credit card accepted

"Windows and sliding doors cleaning were great. Power wash included gutters which really needed it! Small issue of a broken flood bulb was resolved the next day and the resolution was above and beyond expectations. Will using them again on the spring!"
Response time2 days
20 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Premier Windows & Glass, Corp.
Premier Windows & Glass, Corp.
4.8(
29
)
Window Glass - Install or ReplaceWindow Frame - Repair

Serving North Potomac, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"The Premier Windows and Glass has provided an excellent service for me! A frame of one of the windows in my condo was broken, and I looked for a company that would fix it and prolong the life of the window. So, I was very happy to discover The Premier Windows and Glass. Their technician was very polite, professional, and knowledgeable. Not only did he do a quality job on fixing the frame, but he also explained to me what needs to be done to prevent the window from breaking down again and avoid paying a lot of money for its replacement. In addition, the manager and technician responded to my service request in a prompt manner. The problem was solved on the day when I called the company. Last but not least, the company offers competitive service rates and does not push people to spend more money than is absolutely necessary. I would strongly recommend this company to anyone who needs to have a window fixed or replaced."
Rotted patio door sash
Rotted French door sash and trim board
Repaired French door panel
Repaired French door panels
Repaired French for sashes and the trim board

+3

Response time12 hrs
Response rate97%
35 neighbors recently requested a quote
Avatar for Atlantic Sun Control, Inc
Atlantic Sun Control, Inc
4.8(
60
)
Window Tinting - Apply or Replace

Serving North Potomac, MD and surrounding areas

Approved

In business since 1991

Free estimates

Warranties offered

"We detected over the past six what we thought was a "fogging" of the window film Atlantic installed approx. 10 years ago.  Before calling them for an inspection to confirm/refute our suspicions, we had the windows (approx. 36) professionally cleaned inside and out.  We then called Atlantic to inspect the window film issue and they did so promptly.  After ruling out window seal failure, Atlantic agreed that the window film they had installed was defective and had fogged. (They traced it back to a problem "run" from the manufacturer.)  We scheduled a removal/re-install date with them and - as they say - the rest is history.  Truly no hassle and no cost. These folks are the best!  Recommend/use them again?  You betcha!
"
AT&T Building
AT&T Building
AT&T Building
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+3

Response time5 days
1 neighbors recently requested a quote
Recommended by98%of homeowners
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Windows FAQs, answered by experts

Whether or not new windows increase property taxes depends on where you live and by how much your upgrade increases your home’s value. Smaller projects likely won’t result in increased property taxes, but it’s always a good idea to err on the side of caution and check. Contact your local county appraisal department for the most accurate information about property taxes in your area. 

The average lifespan for a casement window is around 20 years, but some higher-end casement windows with more durable frame materials can last up to around 40 years before you need to replace them. You’ll need to carry out routine maintenance and window cleaning—and, on occasion, casement window restoration—to extend the lifespan of your casement windows. But they tend to wear more slowly than windows with sliding sashes because the weatherstripping sees minimal friction.

Removing a window isn’t a very long process. Depending on several factors, it can take anywhere from 20 minutes to upwards of an hour. The size of the window greatly impacts the time it takes to replace it. Accessibility is another big component. If it’s hard to reach the window or reaching it is dangerous, anticipate it taking longer. 

Lastly, if the old window is in poor condition, it could take longer to remove it safely—especially if the frame has wood rot and is structurally unsound.

Sometimes, you can buy windows directly from the manufacturer, and it may be cheaper than buying through a third party or wholesaler. Manufacturers may also offer more options, including custom shapes and features, or better warranties if you purchase through them directly. 

However, some companies limit the ability to buy from them, especially if you need standard pre-fabricated sizes, so don’t expect this service from every manufacturer.

Before purchasing, it’s good to weigh the pros and cons of vinyl windows. Vinyl windows offer several advantages over other types of windows. Vinyl windows are more affordable than most other window types, and they’re also very energy efficient. Vinyl windows are also low-maintenance, weather-resistant, and easy to install.

The North Potomac, MD homeowners’ guide to window services

From average costs to expert advice, get all the answers you need to get your job done.