4.6 
224 *The Angi rating for Window Service companies in Demarest, NJ 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 Demarest, NJ 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 December 16, 2025
Serving Demarest, NJ and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"John replaced the glass sash on my Anderson casement windows. He did the complete job in one day, at a cost of 15% of the Anderson replacement window quote. I highly recommend Window MD.. They were perfect!"
Serving Demarest, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"Thomas provided the best window cleaning service I have ever had. The windows have been meticulously cleaned inside and out. Sides of windows and all screens were taken very good care of as well. Very satisfied and I would highly recommended them."
+9
Serving Demarest, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 1999
Emergency services offered
Credit card accepted
"I used Star Windows and Doors LLC to replace the windows in our home. It was a pleasure to work with them - they were very responsive, and from start to finish the entire process smooth. The windows themselves look beautiful, and the installers did a great job with all the little details! I would recommend Star Windows and Doors LLC."
+16
Serving Demarest, NJ and surrounding areas
Approved
In business since 2022
Free estimates
Small jobs welcome
"Very trustworthy and personable. Great communication. Kept me informed throughout. Perfect job! Windows are sparkling! Highly recommend!"
+2
Serving Demarest, NJ and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"They handled my broken window so quickly and professionally! So grateful for their help with fixing our broken window in our living room. 100% would recommend."
Serving Demarest, NJ 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."
+24
Serving Demarest, NJ and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Great service ! Booked an appointment quick and easy. Got my windows to it's within a week. Very professional! Thank you again ."
Serving Demarest, NJ and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Great job replacing multiple glass panes and window frames"
+76
Serving Demarest, NJ and surrounding areas
Approved
In business since 1982
Free estimates
Credit card accepted
"Did a good job - I had 12 windows that needed replacing and they did it on the spot in a day. Very neat workmanship. Would recommend them."
Serving Demarest, NJ and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Great experience with this company. Beautiful energy efficient windows at affordable price."
+53
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