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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

"Thank you Aaron and Bob for another excellent joy with another window project. We are equally thrilled with the workmanship of the installation and the quality of our new window as we were the last time you did a big window job for us. We appreciate your professionalism and dependability."
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

40 neighbors recently requested a quote
Recommended by93%of homeowners
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Renewit Window and Glass Repair
4.5(
160
)
Door or Window Screens - Install or RepairWindow Glass - Install or Replace

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1970

Free estimates

Offers commercial services

"We just needed the pane in one window replaced. They came to look at it the same day I called. He measured and ordered the window in less than 10 mins. As he said, 10 days later the window pane arrived. They came and installed the window that day in less than half an hour. The service was great, timely and affordable. I will definitely remember them for any future window replacements."
Response time2 days
45 neighbors recently requested a quote
Recommended by90%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%
27 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

"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
1774 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
6 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
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Windows questions, answered by experts

Expect excavation below grade, creating a well for access, weatherproofing, and thorough inspections during setup.

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.

Bay windows are supported by braces and industrial strength cables, often at the top of the window but sometimes at the bottom. The bay window may need buttress supports if installed on the second floor. Wood screws on the interior also hold the bay window in place. Bay windows are heavy and need proper support to prevent sagging and wall damage. You need to ensure that the support system can hold the weight of the window and the roof cab over the window.

No, it’s not normal for windows to rattle in the wind. If they do, it may signal that there’s a larger problem at play. Common reasons that windows rattle in the wind are because the glass isn’t secure enough, the frame is loose, or the wood is rotting. In any of these cases, you should identify the problem and take steps to fix it.

Actually, condensation can mean that your windows are more energy efficient because the seal keeps cold air out and warm air in. In some cases, windows with poor seals can lead to more condensation, but they may allow the cold and warm air to mix and reduce condensation. If you’re worried about whether or not your windows are properly insulated, have a pro assess them.

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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