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TRUSTED BY MOUNTAINSIDE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon336
    Verified window services reviews

Verified Reviews for Window Service pros in Mountainside, NJ

*The Angi rating for Window Service companies in Mountainside, 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 Mountainside, 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 June 11, 2026

Find Window pros in Mountainside

Avatar for Smooth and Shine Window Cleaning
Smooth and Shine Window Cleaning
5.0(
51
)

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Thomas delivered a detailed and exemplary window cleaning experience. Eleven windows cleaned inside and out. Even the front and rear entry doors were also meticulously detailed. Highly recommended."
My jobs
My jobs
My jobs
My jobs
My jobs

+9

Response time8 hrs
Response rate98%
83 neighbors recently requested a quote
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Avatar for Glass by Ro
Glass by Ro
5.0(
80
)

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Our dog broke glass in our front window on a cold, Saturday afternooon in January. I called Glass by Ro and they were at my house in under and hour. Not only did they fix the glass, they took, care of the storm window, which had come off. Their work was immaculate and done with efficiency and care. Highly recommend! I would use them again for any window or glass needs. Fabulous work."
Mirror table repair
Mirror table repair
Mirror table repair
Mirror table repair
Mirror table repair

+1

Response time7 hrs
Response rate98%
11 neighbors recently requested a quote
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Avatar for CGT, Inc.
CGT, Inc.
4.9(
239
)

Serving Mountainside, NJ and surrounding areas

Approved

In business since 1983

Free estimates

Warranties offered

"My overall experience with Ed at CGT was very positive. Ed is reliable, trustworthy and a hard worker. My sunroom windows look fabulous!"
Fade & Glare Reduction
Fade & Glare Reduction
Fade & Glare Reduction
Fade & Glare Reduction
Residential Atrium

+5

Response time11 hrs
1 neighbors recently requested a quote
Recommended by99%of homeowners
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Avatar for Star Windows Doors and Siding, LLC
Star Windows Doors and Siding, LLC
4.9(
230
)

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Emergency services offered

Credit card accepted

"This project was top notch. Best business for windows!"
My jobs
My jobs
My jobs
My jobs
My jobs

+16

Response time6 hrs
Response rate92%
8 neighbors recently requested a quote
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Avatar for Supreme Tints
Supreme Tints
5.0(
28
)

Serving Mountainside, 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 ."
Response time2 hrs
Response rate92%
4 neighbors recently requested a quote
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Avatar for Power Home Remodeling
Power Home Remodeling
4.2(
775
)

Serving Mountainside, 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."
Double Hung & Double Hung W/ Half Round
Double Hung W/ Half Round
Double Hung W/ Half Round
Double Hung
Double-Hung Window

+24

1212 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Mack Glass and Gutters
Mack Glass and Gutters
4.9(
109
)

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Very reputable company. The owner Jorge Mass is very reliable & an excellent worker. I've had my windows washed, gutters cleaned & repaired by them for the last three years. I highly recommend them."
Before and After
Gutter cleaning in Haworth, NJ
Gutter cleaning and install in Essex Fells, NJ
Gutter cleaning in Summit, NJ
window cleaning

+7

Response time8 hrs
1 neighbors recently requested a quote
Recommended by99%of homeowners
Request Quote
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Showing 1-10 of 896
Windows questions, answered by experts

A window may fail because of age, defective mechanisms, or moisture. Depending on the issue, the window may be fixed with simple repairs. Otherwise, you’ll have to invest in replacing it. You can avoid damaged windows but keeping up with window maintenance.   

Arched windows are slightly more expensive than standard rectangular ones, but they only cost $50 to $100 more per window. However, adapting a rectangular wall opening to accept an arched window can add $200 to $400 to your total, making them a more expensive option over sticking with a standard window replacement.

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.

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

Yes, egress windows can significantly add value to a home. By making basement and attic areas safer and more livable, they allow you to market these spaces as finished living areas, which increases your property's value. Many homeowners can recover the full installation cost, with some sources citing a return on investment of around 70%. The exact value added depends on your specific home, location, and adherence to local building codes. Beyond financial value, egress windows enhance functionality by adding natural light and comfort. They are also a crucial safety feature, often mandated by building codes to serve as an emergency exit.

The Mountainside, NJ 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