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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
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"I'm so happy with my new windows! My only regret is that I don't have more windows to replace! Aaron and his team were a dream to work with - communicative, friendly, and direct. They worked with me to scope out exactly what I wanted and they were very transparent and fair on price. The installation team was efficient and respectful, making sure everything was done to the utmost standards. My windows look amazing but more importantly they work fantastically! I was shocked at how much quieter and cooler my house was after the new windows were installed, and they are so much easier to keep clean. I will be recommending Thermo-Seal to everyone!!"
Windows Project
Windows Project
Windows Project
Windows Project
Additional Photos

+29

Response time6 days
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
)

Serving Cos Cob, CT and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Warranties offered

"Process was fully explained from start to finish and delivered as promised. High quality windows and attic insulation for an affordable price. Company was very professional and answered all questions. Great warranty. Installed 15 custom windows in one day. Definitely recommend!"
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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Avatar for ProEdge Remodeling - Windows
ProEdge Remodeling - Windows
4.6(
38
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1961

Free estimates

Credit card accepted

"I waited a while because they are backed up due to Covid but they were definitely worth the wait. They were precise, quick and extremely detailed. They put two windows in for me (where windows didn't exist before) and covered up a window. They insulated and everything. No painting but that was cool. I was very impressed. Definitely would recommend them and hire them again...and again....and again"
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
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 time4 hrs
Response rate100%
31 neighbors recently requested a quote
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Avatar for Renuity
Renuity
4.4(
35
)

Serving Cos Cob, CT and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Warranties offered

"I liked that there was no nonsense. Their salesman was straightforward and the price was fair. We were also impressed with the installers. They installed all the windows in 1 day and they look great. I'm happy I chose them."
Entry Door
Doors
Doors
Doors
During Installation

+55

Response time6 hrs
1364 neighbors recently requested a quote
Recommended by69%of homeowners
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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

Response time1 day
Recommended by100%of homeowners
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Windows questions, answered by experts

In most cases, you should get your windows cleaned one to two times annually, although you might want to complete this task more often if you live in an area with heavy pollen or heavy rain or snowfall that soils your windows. It’s also a good idea to hire a professional window cleaning service if you’re listing your property, as sparkling windows will make a big difference in terms of curb appeal and, potentially, your home’s value.

Before purchasing, it’s good to weigh the pros and cons of vinyl windows. Vinyl windows offer several advantages over other types of windows. Vinyl windows are more affordable than most other window types, and they’re also very energy efficient. Vinyl windows are also low-maintenance, weather-resistant, and easy to install.

Yes, they address underlying issues, providing long-term seals and energy savings you might need help to achieve.

Double-pane windows offer several key benefits, making them a worthwhile investment. They provide superior insulation and energy efficiency compared to single-pane windows, which helps limit heat loss, maintain more comfortable indoor temperatures, and lower your utility bills. The design, which features two panes of glass filled with air or gas, also dramatically reduces noise from outside, making your home significantly quieter. Additionally, the dual-pane construction strengthened by spacers improves the durability and security of your windows.

Deciding whether to repair or replace a window depends on the specific issue, the window's age, and the cost-effectiveness of the solution.

Repair is often better for:

  • Minor issues such as a single broken glass pane, a stuck window, or small leaks. Repair is typically more affordable for isolated problems.

Replacement is the better long-term solution for:

  • Major problems like deteriorating or rotting frames, significant leaks, or drafts.

  • If your windows are over 15 years old, as repairs may only be a temporary fix for an aging unit.

  • If you have a widespread problem affecting several windows.

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