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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

Avatar for Thermo Seal Windows Siding & Roofing
Thermo Seal Windows Siding & Roofing
4.7(
137
)
New Windows - 6 +New Window - SingleNew Window - Single - For Business+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

Response time3 days
1 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

43 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for ProEdge Remodeling - Windows
ProEdge Remodeling - Windows
4.6(
38
)
New Windows - 3-5New Windows - 6 +

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1961

Free estimates

Credit card accepted

"Install crew was perfect. No dust, no mess. Complete cleanup, and a perfect airtight install. For years we have had winter management strategies. Closing off room on the north side... and running space heater in those rooms during use. After installation of the ProEdge windows these rooms are as warm as the rest of the house. AMAZING! Recent warm days prove the advantage of triple glazed low-E windows, too. Nice and cool inside. I searched for years for new windows that met MY specifications . As a career engineer I am happy to recommend ProEdge to anyone. Their attention to detail is superb."
2021 Window Projects 44
2021 Window Projects 44
2021 Window Projects 44
2021 Window Projects 44
2021 Window Projects 44

+38

Recommended by94%of homeowners
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Avatar for Ivis Cleaning Services
Ivis Cleaning Services
4.9(
73
)
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 time4 hrs
Response rate100%
23 neighbors recently requested a quote
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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

Response time1 day
Recommended by100%of homeowners
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Avatar for Renuity
Renuity
4.3(
36
)
New Windows - 6 +New Windows - 3-5

Serving Cos Cob, CT and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Warranties offered

"I have to say that Matt, Dave and Rich were amazing! They were professional, friendly and cleaned up after themselves! I will tell anyone I know looking for windows to call Rite Window for sure. Happy customer Darlene"
Entry Door
Doors
Doors
Doors
During Installation

+55

Response time6 hrs
1906 neighbors recently requested a quote
Recommended by66%of homeowners
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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
7 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
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Windows questions, answered by experts

Adding windows to a house is expensive. Budget roughly $5,800 to add a single window, and double or triple that to add two or three. In some cases, adding a single window can exceed $20,000, depending on the type of exterior wall, the size of the window, the type of window, local permit costs, and other factors.

Folding window installation costs about $1,600 on average, ranging from $500 to $3,000. The cost factors of this project include the size, the type of folding windows, the number of panels, and the type of glass. Different types of folding windows include:

  • Standard folding window: $200 per linear foot

  • Glazed folding window: $240 per linear foot

  • Standard folding window and swing door: $1,000 per linear foot

  • Folding window and sliding door: $2,000 per linear foot

Shatter-resistant glass will ensure that even with a high impact, the glass of your window panes is less likely to break. If you’re looking for a more low-cost way to prevent vandalism, the most traditional answer would be to board up windows with a strong plywood sheet. Adding security cameras is also a surefire way to ward off potential vandalism. 

Yes, storm windows should be tempered. According to the International Association of Certified Home Inspectors, tempered glass is stronger and can withstand temperatures higher than laminated glass. Tempered glass is important for storm windows because it protects against outside elements and household accidents by not producing sharp, jagged pieces when it breaks or shatters.

It is generally recommended to remove window screens for the winter, especially in climates with heavy snow, freezing rain, or frigid temperatures. Removing them helps prevent damage to the screen mesh and frames that can be caused by ice and moisture buildup between the screen and the window. Taking out the screens also allows more natural light and warmth into your home during shorter winter days and makes it easier to clean your windows thoroughly. In warmer climates where harsh weather is not a concern, the decision is more about personal preference; some homeowners prefer the clearer view, while others leave them in for convenience.

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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