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TRUSTED BY ISLIP, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon240
    Verified window services reviews

Top-Rated Window pros in Islip - Updated Nov 2026

Avatar for Clearly Clean Windows
Clearly Clean Windows
4.9(
64
)
Window Cleaning

Serving Islip, NY and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Quick response

"I had Keith and his crew come and clean windows first at a home I needed to get ready to go in the market. They did such a great job and weee reasonably priced that I hired them to then come and clean the windows and powerwash my house. Again, they did an awesome job. Would recommend them to anyone."
Window Cleaning
Window Cleaning
Window Cleaning
Response time1 day
14 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Dove Window Cleaning LLC
Dove Window Cleaning LLC
4.7(
35
)
Window Cleaning

Serving Islip, NY and surrounding areas

Approved

In business since 1985

Free estimates

Credit card accepted

"Excellent from start to finish. Quick turn around time from when the contact was made to arrange for the work and when to job was finished. Rudy, arrived on time and texted me that he was on his way. He is very professional. He knows windows. I cant believe how good my windows look, including removing some silicone . I can only say the truth, he is great. I already have my neighbors taking his card to schedule an appointment. Thank you Rudy."
Rudy & Liz
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Long Island Windows and Siding
Long Island Windows and Siding
4.5(
51
)
New Windows - 6 +

Serving Islip, NY and surrounding areas

Approved

In business since 1966

Free estimates

Emergency services offered

"They addressed all of my concerns without hesitation and to my satisfaction. They gave me a fair price. I thought the workers were experienced and had a good technique of capping the windows to prevent water leakage. They exceeded my expectations."
Our Reputation
Reinforce Your Home
Expert Craftsmanship
Response time8 hrs
Response rate94%
34 neighbors recently requested a quote
Happy Remodeling
4.7(
57
)
New Windows - 6 +

Serving Islip, NY and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"I had a through the wall air conditioner removed and the wall patched. The work included dry wall, insulating, exterior siding and painting. Sheldon was professional and easy to work with. For a reasonable price be provided high quality work. I intend to worn with S & K again."
Window replacements
Window replacements
Window replacements
Sliding door and windows
Double Hung Windows with Grids

+7

Response time8 hrs
3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Power Home Remodeling
Power Home Remodeling
4.2(
790
)
New Windows - 6 +New Windows - 3-5

Serving Islip, NY and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1992

Free estimates

Warranties offered

"Excellent workmanship and products I have had three installations with Power in the past two years. I first used them for a new roof and gutters. The workers were all knowledgeable in their area of work. Clean up was good although some nails kept showing up over time. Next I had the 2nd floor windows and some 1st floor windows replaced, 9 in total. Installation went well and they cleaned up beautifully afterwards. I love the windows! They are a beautiful and energy efficient product. Lastly, I recently had a bay window replaced in my kitchen with the same type window. The workers ere all friendly and explained what would be done. The area was draped with plastic to cut down on dust. Clean up was excellent inside and outside! The window is beautiful and the framing on the outside of the window matches the other windows and the small roof above the bay window was replaced with the same roofing as the rest of the house. I would choose them again for any future projects."
Double Hung & Double Hung W/ Half Round
Double Hung W/ Half Round
Double Hung W/ Half Round
Double Hung
Double-Hung Window

+24

1686 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Supreme Tints
Supreme Tints
5.0(
28
)
Window Tinting - Apply or Replace

Serving Islip, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Sam responded immediately after I contacted Angie for the service. He came by, assessed the work and gave me the price. He is vey neat while working. He is correct and professional. He is an authorized dealer for Madico tinted film which is what I wanted. I highly recommend him."
Response time2 hrs
Response rate92%
5 neighbors recently requested a quote
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Windows FAQs, answered by experts

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

Expert installation optimizes insulation properties, cutting energy costs and enhancing home comfort year-round.

Upgrade to double-glazed glass or apply energy-efficient coatings to reduce heat loss and utility costs.

Vinyl windows have a few cons to consider before installing. For instance, while vinyl windows are energy efficient in terms of maintaining your home’s temperature, the actual process of making vinyl windows involves chemicals that are harmful for the environment. Vinyl windows are also less customizable than some other types of windows.

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

The Islip, NY homeowners’ guide to window services

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