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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon705
    Verified window services reviews

Top-Rated Window pros in Germantown - 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 Germantown, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1997

Free estimates

Warranties offered

"Zen Windows advertises that they make things easy, and that they do. Zen windows doesn’t just make things easy, they have quality products, reasonable prices and exceptional service. We just had an entry door replaced and everyone we worked with was great. While they don’t push you into buying any products, they do go out of the way to help you make the right decisions. Everything went exactly as they told us, the installers were top notch and the finished product looks great. Without hesitation, we would highly recommend Zen Windows to anyone looking for doors or windows."
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+27

Response time2 days
18 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Clifton Contracting
Clifton Contracting
4.8(
42
)
Egress Window - Install

Serving Germantown, MD and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Clifton Contracting made the whole process so easy from planning to completion. We are thrilled with the window and the complete change in our basement. We chose a larger Anderson window and an upgraded Rockwell window well. No other estimates could match them."
1 neighbors recently requested a quote
Recommended by100%of homeowners
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 Germantown, 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%
7 neighbors recently requested a quote
Avatar for VIRGINIA WINDOW CLEANERS INC
VIRGINIA WINDOW CLEANERS INC
4.6(
76
)
Window Cleaning

Serving Germantown, MD and surrounding areas

Approved

In business since 1963

Free estimates

Credit card accepted

"We had them clean the inside/outside/screens and sills, it was night and day how much better we could see afterwards. I didn't realize how dirty all of our windows were. The used just water on the windows too, I was shocked that no streaks were present afterwards. I will be looking to do this more often in the future and would not hesitate to use Virginia Window Cleaners again."
Response time1 day
10 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 Germantown, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I was very happy with response from Eddis. He gave me a quote upfront and followed it up with an invoice via email. I paid him half at the beginning and another half when he came back to install the window. He was very professional and respectful of my house. I will definitely use A.R. Glass again if I have window repair needs."
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 Germantown, 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
19 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Atlantic Sun Control, Inc
Atlantic Sun Control, Inc
4.8(
60
)
Window Tinting - Apply or Replace

Serving Germantown, MD and surrounding areas

Approved

In business since 1991

Free estimates

Warranties offered

"The team that performed the work were excellent. They took great care to protect my wood floors and were very neat. I decided to do more windows and I'm using them again."
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

Yes. Thermal pane windows can be customized to fit a variety of different window sizes and dimensions. A contractor or manufacturer can usually offer custom sizing options based on your specific window requirements. You should consult with professionals who can assess your needs and provide the appropriate custom window solutions for your home.

It’s time to replace your windows if most or many are in poor shape. In that case, new fiberglass windows will increase the energy efficiency of your home and add to its overall visual appeal, inside and out. Replacing your windows also can allow you to find a style that better suits the character of your home.

Constant fixes can be expensive over time, and by replacing your windows, you can be at ease knowing you now have windows that function properly and make your home more energy-efficient.

Wood windows fall in the middle of the window frame materials when it comes to energy efficiency. They’re more insulating than aluminum and vinyl, but they aren’t as efficient as fiberglass or composite frames. If you love the look and lifespan of wood windows and want to maximize efficiency, you can upgrade to double-pane or triple-pane glass and consider window tinting and low-emissivity (low-E) coatings to minimize heat transfer.

Bay windows are not easy to install because they are heavy and require specific tools and woodworking experience. You’ll also need to install a roof cab, flashing, and shingles. Ensuring the window is level and sealed can be tricky but it is important because it prevents air leakage and water from entering your home. Most often, an experienced window pro should install bay windows.

The primary benefits of an egress window include providing a safe emergency exit, increasing natural light in a space like a basement, and improving ventilation. Additionally, installing an egress window can often increase your property's value.

The Germantown, MD homeowners’ guide to window services

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