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TRUSTED BY COS COB, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon161
    Verified window services reviews

Verified Reviews for Window Service pros in Cos Cob, CT

*The Angi rating for Window Service companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.

*The HomeAdvisor rating for Window Service companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.

Last update on November 17, 2025

Find Window pros in Cos Cob

Good Fellows Window Corporation
4.7(
174
)
New Windows - 6 +

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Gary and his crew did a excellent job replacing 5 windows.. I had a few other companies give me quotes and Gary's was the best by far. His crew replaced the windows with speed and cleaned and removed all the debris within a few hours. So far the windows meet all my expectations and really make a difference in the comfort of the rooms ."
Bay windows
Taking out the old
Before
Before
Starting

+45

5 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Thermo Seal Windows Siding & Roofing
Thermo Seal Windows Siding & Roofing
4.7(
137
)
New Windows - 3-5New Windows - 6 +New Window - Single+9 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Great experience from beginning to end. Aaron the sales and service representative was professional, knowledgeable and attentive. The window quality is excellent. The installation was seamless they were on time and all business. They paid attention to details and the clean up at the end was fantastic. It was a pleasure all around I highly recommend Thermo Seal."
Windows Project
Windows Project
Windows Project
Windows Project
Additional Photos

+29

2 neighbors recently requested a quote
Recommended by99%of homeowners
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Avatar for Power Home Remodeling
Power Home Remodeling
4.7(
379
)
New Windows - 6 +New Windows - 3-5New Window - Single+8 more

Serving Cos Cob, CT and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Warranties offered

"The guy did an excellent job. I have no complaints. This was our 2nd window project and we really liked the windows we did 6 years ago so finished off the house."
Fresh Curb Appeal
Full Home Remodel - Siding, Windows, and a Roofing system
Fresh Curb Appeal
Full Home Remodel - Siding, Windows, and a Roofing system
Fresh Curb Appeal

+41

44 neighbors recently requested a quote
Recommended by93%of homeowners
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Gunderson Flooring and Design
4.7(
114
)
Door or Window Screens - Install or Repair

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Had a problem with a pet tearing my screens. Jay gave me his expert opinion and recommended a pet proof screen. He installed that in the back and a regular screen for my front door. They both look great. So far so good with the pet screen! ?"
1
2
Traditional Kitchen - Cozy Warm Kitchen Island With Black Cabinets
4
5

+7

24 neighbors recently requested a quote
Recommended by99%of homeowners
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Avatar for Ivis Cleaning Services
Ivis Cleaning Services
5.0(
71
)
Window Cleaning

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Offers commercial services

Customers say: Terrific value

"Both the customer service and the window cleaning skills were excellent. The results of the window cleaning made the windows look as good as new and the it feels very good having clean windows to look through. I would highly recommend Ivis Cleaning Services for your window cleaning needs as both there price and service is excellent."
Storefront Detail
Crystal clear
Taco project
Response time5 hrs
Response rate97%
31 neighbors recently requested a quote
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Avatar for Renuity
Renuity
4.4(
35
)
New Windows - 6 +New Windows - 3-5

Serving Cos Cob, CT and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Warranties offered

"Installed 22 new windows, 2 entry doors, and new sliding glass door. Outstanding service, price, and installation. Highly recommend."
Entry Door
Doors
Doors
Doors
During Installation

+55

Response time6 hrs
1386 neighbors recently requested a quote
Recommended by69%of homeowners
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Avatar for Guncay Glass & Mirror
Guncay Glass & Mirror
5.0(
25
)
Window Glass - Install or Replace

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Worked with Guncay Glass & Mirror several times with Satisfactory results and professionalism in each project. Well priced and always on time, will keep using them over and over."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+37

Recommended by100%of homeowners
Request Quote
C A Y Window Cleaners
4.4(
20
)
Window Cleaning

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"Carlos was very great to work with. Was flexible with scheduling and did impeccable work. My windows are spotless! He was also able to have the entire interior of the house cleaned. Highly recommend Carlos for both window cleaning and interior cleaning services."
Response time3 days
8 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Fer Home Services, LLC
Fer Home Services, LLC
5.0(
42
)
Window CleaningNew Window - SingleDoor or Window Screens - Install or Repair+1 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Great work with reasonable price. Strongly recommended."
Exterior Project
Exterior Project
Exteriors
Exteriors
Exteriors

+28

Response time8 hrs
22 neighbors recently requested a quote
Recommended by95%of homeowners
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Windows questions, answered by experts

On average, hurricane windows last between 20 and 30 years. But some windows only last 10 years, while others can last 50 years or longer. Vinyl hurricane windows have a shorter lifespan than aluminum, so invest in high-quality hurricane windows and properly maintain them to get the most out of your investment. 

One of the best professional cleaning solutions that won’t leave streaks is one gallon of distilled or bottled water mixed with 2 to 4 teaspoons of dish soap. Apply using a sponge in a figure-eight motion, and then use a squeegee to remove the majority of the water and soap. You can finish drying with a piece of old black-and-white newspaper to remove any residue for a streak-free clean every time.

Yes, you can create a solution of dish soap and hot water to create a cleaning solution. You’ll want to mix about one to two drops of dish soap for every 8 ounces of hot water. If you use too much soap, it’ll create too many suds and make it harder to effectively wash away.

Whether or not it's worth it to install double-hung windows depends on several key factors. First, double-hung windows cost more than single-hung windows, so if you’re looking to lower costs, you might find it more worthwhile to choose single-hung windows. If you want the lowest maintenance requirements, though, double-hung windows are easier to clean.

Double-hung windows also offer better ventilation, making them a good option for bathrooms and kitchens. Single-hung windows have better energy efficiency than double-hung windows because they have only one moving part.

If your double-glazed windows are letting in a lot of noise, it might be because of improper installation. You may need to apply an acoustic caulk around the window to close any gaps or hire a window installation expert to fix the windows. Double-glazed windows are typically more effective at reducing noise when they have thicker glass panels or have a gas filling, like argon or krypton, between the two glass panels.

The Cos Cob, CT homeowners’ guide to window services

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

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