Top-rated window pros.

Get matched with top window pros in Cos Cob, CT

Enter your zip and get matched with up to 5 pros

Need a pro for your window service project in Cos Cob, CT?

Select your specific project to find the pro for you.

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
)

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
Request Quote
Avatar for Power Home Remodeling
Power Home Remodeling
4.7(
379
)

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
Request Quote
Avatar for Ivis Cleaning Services
Ivis Cleaning Services
5.0(
71
)

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Offers commercial services

Customers say: Terrific value

"Two great workers who did an excellent job cleaning my dirty windows"
Storefront Detail
Crystal clear
Taco project
Response time5 hrs
Response rate97%
30 neighbors recently requested a quote
Request Quote
Avatar for Renuity
Renuity
4.4(
35
)

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
1392 neighbors recently requested a quote
Recommended by69%of homeowners
Request Quote
Avatar for Guncay Glass & Mirror
Guncay Glass & Mirror
5.0(
25
)

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
...
Showing 1-10 of 711
Windows questions, answered by experts

Mulled windows are often more expensive than standalone windows. However, this is mostly because mulled windows tend to be larger than standard windows, meaning they require more materials and labor to manufacture and install, both of which drive up the cost. If mulled windows take up the same square footage as separate windows, they should cost about the same unless you need to reinforce your exterior wall to support the larger wall opening.

A window can fall off a track for a large number of reasons. The most common ones usually involve an issue with the track itself or the wheels that glide along it. If the track is bent or broken, the wheels can’t slide. If the wheels are broken or are full of debris, they won’t spin, and you will have to force the window open. The good news is that most window track issues are easy fixes, even for beginner DIYers.

Look for stickers at the top or inside of the frame, like in the tracks when the window is open. Some brands also stamp their name onto the frame itself or place it between the panes of glass, although this is less common. If you can’t find the info on the window itself, consider asking your neighbors or HOA.

Depending on size, material, and labor, two windows can cost between $600 and $1,600.

Typically, triple-pane windows made with krypton gas filling are the most energy efficient. A window’s frame, glass, design, and installation all affect its energy efficiency. These windows, in particular, are designed highly effectively in terms of their ability to insulate.

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.

See all articles