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TRUSTED BY NASSAU, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon75
    Verified window services reviews

Top-Rated Window pros in Nassau - Updated Nov 2026

Avatar for Mad City Windows & Baths
Mad City Windows & Baths
4.4(
838
)
New Windows - 6 +New Windows - 3-5New Windows - 2

Serving Nassau, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"The installers were wonderful. Friendly, knowledgeable, fast and CLEAN! Youâ d barely know theyâ d been there!. And our sales person really helped us understand the best, but not most expensive windows for our house. If I need more windows they will be back!"
windows
siding
siding
siding
windows

+20

Response time10 mins
7731 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Integrity Window Cleaning
Integrity Window Cleaning
4.8(
16
)
Window Cleaning

Serving Nassau, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Great experience having Integrity Window Cleaning clean the windows on our house. They provided an upfront quote, including a cap ("not to exceed") based on estimated hours, Jobsite: They showed up promptly, explained everything they were going to do in advance.were professional and courteous in responding to our questions, worked very efficiently, and did an excellent job at getting rid of all the dirt we had on our windows and screens (inside and out). Highly recommended."
Response time3 days
18 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ProEdge Remodeling - Windows
ProEdge Remodeling - Windows
4.1(
54
)
New Windows - 3-5New Windows - 6 +

Serving Nassau, NY 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"
Windows
Windows
Windows
Windows
Windows

+40

Response time3 hrs
Recommended by85%of homeowners
Avatar for Reid’s Painting & Handyman Services
Reid’s Painting & Handyman Services
5.0(
47
)
Hardware, Latches & Tracks (Window) - Repair or ReplaceWindow Frame - RepairWindow Well Covers - Install or Repair

Serving Nassau, NY and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Excellent contractor! Very knowledgeable with simple and effective explanation. This service provider was able to successfully rebuild window trim, insulate/foam, and paint a great number of exterior windows efficiently. I definitely plan on hiring again. Great integrity and honesty with with a wide variety of skill. I've saved this company's contact information to hopefully help me do some insulation/sealing/weatherproofing in my basement."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Ceiling before photo

+18

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for One Peace, LLC
One Peace, LLC
4.9(
17
)
Hardware, Latches & Tracks (Window) - Repair or ReplaceWindow Frame - RepairWindow Well Covers - Install or Repair

Serving Nassau, NY and surrounding areas

Approved

Super Service Award Winner

Free estimates

Customers say: True professional

At One Peace LLC, we understand that your home is more than just a place—it's a sanctuary. Specializing in providing reliable and high-quality repair services, we are dedicated to helping homeowners maintain the beauty and functionality of their homes.\n\nOur team of skilled professionals brings years of experience, ensuring that every project is completed with precision and care. Whether it's a small repair or a major renovation, we approach every task with the same commitment to excellence.\n\nWhy Choose One Peace LLC?\nExpertise You Can Trust: With a proven track record in home repair services, we deliver solutions that stand the test of time.\nCustomer-Centric Approach: Your satisfaction is our priority. We work closely with you to understand your needs and exceed your expectations.\nTransparent and Fair Pricing: We believe in honest and upfront pricing, so you know exactly what to expect.\nPrompt and Reliable Service: We value your time and ensure timely completion of all projects without compromising on quality.\nJoin the many satisfied homeowners who have experienced the peace of mind that comes with choosing One Peace LLC. Let us be your partner in creating a home that reflects your style and meets your needs.\n\nContact us today for a consultation and discover how we can bring your home improvement vision to life!\n

Tile
Pressure washing
Flooring Sales/Installation/Repair Project
Handyman Services Project
Tile

+35

Response time3 days
Response rate100%
Recommended by41%of homeowners
Avatar for Near Me Exteriors
Near Me Exteriors
4.8(
42
)
Window Cleaning

Serving Nassau, NY and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"They did a great job soft washing my house and the exterior of the windows. They are friendly and professional, explaining their equipment and process when I asked."
Terracotta/ Spanish style
Terracotta/Spanish style
Concrete bench
Concrete bench
House wash

+6

Response time10 hrs
Response rate96%
20 neighbors recently requested a quote
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Windows FAQs, answered by experts

Installing bifold windows can take anywhere from three or four hours to several days. Smaller bifold windows that open vertically and fit inside your existing wall opening should take just a few hours and no longer than a day. Larger bifold windows, especially wider ones, may require structural work before your professional can install the window. The installation could take two to three days, depending on how much work your wall needs.

The material around a window is simply called the window frame, but the individual pieces also have different names. The top portion of the frame is called the head, the side pieces are called jambs, and the bottom portion is called the sill. If you have multiple windows next to each other, you’ll also have a mullion, which is the frame piece that separates the individual windows. Windows stacked on top of each other are separated by a horizontal frame piece, which is called a transom.

Installing energy-efficient windows costs between $325 and $2,000, averaging about $400 per window. You’ll have to consider cost factors like the window’s size, frame material, and type. Labor costs in your area will also impact the overall cost of the project, with window installation professionals charging about $40 per hour on average. Different types of energy-efficient windows include:

  • Single-hung: $150–$2,500

  • Casement: $150–$600

  • Double-hung: $250–$3,000

  • Picture: $200–$650

  • Bay: $480–$1,920

Replacement windows normally don’t come with new sills, as the sill is part of the window frame that the replacement window fits inside. If you’re replacing windows, it’s a good idea to replace the sill, as well, especially since the sill will be fully exposed and easily accessible for replacement.

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.

The Nassau, NY homeowners’ guide to window services

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