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TRUSTED BY EAST ISLIP, NY HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon84
    Verified window cleaning services reviews

Top-Rated Window cleaners in East Islip - Updated Nov 2026

Avatar for Clearly Clean Windows
Clearly Clean Windows
4.9(
65
)
Window Cleaning

Serving East Islip, NY and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Quick response

"Keith is the best!! He has been cleaning my windows for the last 10 years. Keith does a very thorough job cleaning the windows, screens and window sills."
Window Cleaning
Window Cleaning
Window Cleaning
Response time1 day
14 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Hamlet Window Cleaning & Power Washing
Hamlet Window Cleaning & Power Washing
4.5(
181
)
Window Cleaning

Serving East Islip, NY and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"The 2 workers went above and beyond. Made a badly stained and mildewed awning look brand new. Keith also fixed 2 door screens that had been pushed out by my grandchildren and my dog by accident. I did not ask he just did it. And Mary came back in the house to look into a smudge in a window that I look out of all the time. No attitude, just happy to take care of it. Very pleasant to have around. Had no qualms over having them in my house. Ron, you have a great crew."
Recommended by92%of homeowners
Avatar for ECOTEC COMMERCIAL CLEANING LLC
ECOTEC COMMERCIAL CLEANING LLC
5.0(
6
)
Window CleaningWindow Cleaning - For Business

Serving East Islip, NY and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

Precision Cleaning for Professional Spaces.\n\nAt EcoTec Commercial Cleaning, cleaning is more than a service. It’s a commitment to protecting people and elevating the places where work happens. Because when these spaces are clean, safe, and cared for, businesses in Long Island thrive.\n\nWe offer much more than just spotless tile and dust-free countertops. We focus on delivering great service to people, giving you, your employees, and your customers spaces that are consistently clean, safe, and professionally maintained.\n\nEcoTec’s Custodial Technicians are professionally trained to clean and disinfect a wide variety of environments using eco-friendly, EPA-approved products and proven, industry-approved techniques. This approach ensures high standards of sanitation while supporting healthier indoor environments for employees, customers, and visitors.

24 neighbors recently requested a quote
Avatar for Q's Exterior Cleaning Service, LLC
Q's Exterior Cleaning Service, LLC
5.0(
1
)
Window Cleaning

Serving East Islip, NY and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of quality power washing, gutter cleaning, and window washing services. You will find us to be affordable with close attention to the details of each and every project that we are involved with. We always strive to meet our customer's needs. We look forward to building lasting relationships and guarantee your satisfaction!

Response time1 day
Recommended by100%of homeowners
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Window Cleaning FAQs, answered by experts

At least twice a year, but frequency depends on location and exposure to elements.

Window cleaning costs around $220, on average, but you could pay anywhere from $150 to $300 or more, depending on the number of windows, how accessible they are, and the type of windows. Some professional window cleaners charge on a per-window basis at around $10 per window, while others provide a single price for your entire home. Either way, more windows will mean higher cleaning costs. Picture windows tend to be the most affordable because they don’t require cleaning of internal components, while double-hung windows and skylights increase your price because they’re more complicated to clean and less accessible.

You can use a commercial water repellent treatment for glass on your shower doors to prevent water spots. Take care to only apply the product to glass. Letting air circulate also helps prevent water spots, as water is less likely to remain on the glass for a long time with good air circulation. Run your vent fan, open a window, and leave the shower door open for about half an hour after using the shower.

Regular cleaning with non-abrasive cleaners helps prevent buildup and maintains clarity.

Window cleaning depends on how the cleaning service defines their deep cleaning tasks, so pay attention to the details. You certainly should make sure window cleaning is included in the package. Some services will include it as an add-on, so you may have to pay extra. Find out if the cleaning includes interior windows only, or interior and exterior windows. Exterior windows may cost more.

The East Islip, NY homeowners’ guide to window cleaning services

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