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    Verified window and door contracting services reviews

Top-Rated Window and door contractors in Mountainside - Updated Nov 2026

Avatar for Glass by Ro
Glass by Ro
5.0(
92
)
Window Glass - Install or ReplaceDoor or Window Screens - Install or Repair

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Rolando is your guy. Good price, great work, excellent communication. Gave me estimated and a timeline and installed me a beautiful glass shower enclosure and replaced a window downstairs as well as screens and a screen door. Honest, quick and professional."
Mirror table repair
Mirror table repair
Mirror table repair
Mirror table repair
Mirror table repair

+1

Response time7 hrs
Response rate99%
6 neighbors recently requested a quote
Avatar for Star Windows Doors and Siding
Star Windows Doors and Siding
4.9(
230
)
New Windows - 2New Windows - 3-5

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Emergency services offered

Credit card accepted

"Star window and door were excellent. Came exactly on time for the estimate and returned two day later again exactly on time to complete the job. It was refreshing to deal with a contractor who respected time. He did an excellent job fixing my siding. I would highly recommend this company."
My jobs
My jobs
My jobs
My jobs
My jobs

+16

Response time6 hrs
Response rate92%
2 neighbors recently requested a quote
Avatar for Indigo Construction Co.
Indigo Construction Co.
5.0(
24
)
Doors (Exterior) - Install or ReplaceDoors (Exterior) - Install or Replace - For BusinessDoors (Interior) - Install or Replace+6 more

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"We couldn’t have replaced this door with a better expert. Ryan took measurements and photos, then recommended several doors in various price ranges. We didn’t realize how many options come with storm doors. Ryan gave us some really good recommendations and helped us make a great choice. He installed the door in a half day while we were out. Came back to a gorgeous door/screen storm door combo- something we weren’t even sure could have been done to begin with. Important to know:Throughout the entire process, Ryan was responsive and easy to reach. That’s vital in a world where ghosting is the norm (unfortunately). Ryan is the expert you need for your remodeling needs. Highly recommend!"
Doors Project
Remodeling - Kitchen & Bathroom Project
Buena Vista
N. Mich
Remodeling - General Project

+64

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Monk's Home Improvements Inc.
Monk's Home Improvements Inc.
4.7(
600
)
Doors (Exterior) - Install or ReplaceNew Windows - 3-5New Windows - 6 +

Serving Mountainside, NJ and surrounding areas

Approved (Corporate)

In business since 2007

Free estimates

Credit card accepted

Along with the Monk's Kitchen & Bath Design Studio, we are a full-service home improvement provider. Monk's will help you plan, design, and purchase everything you need for a remodel. Then our expert craftsmen will install everything and our painters will come and complete the job.

Recessed Shelving
Reach-In Closets
My jobs
My jobs
My jobs

+19

9 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
134
)
New Windows - 3-5New Windows - 6 +New Windows - 2

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I had an amazing and efficient experience with Home genius exteriors. My siding, windows , doors & Gutters are all brand new. My project Manager Ivan was amazing and very communicative on all cylinders."
Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation

+53

Response time2 hrs
Response rate99%
37 neighbors recently requested a quote
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Window Door Contractors FAQs, answered by experts

Solar screens are low-maintenance but benefit from occasional cleaning with mild soap and water. Avoid using harsh chemicals or pressure washing, as these can damage the mesh. Inspect screens annually for tears or loose frames to maintain performance. In dusty or coastal areas, more frequent cleaning may be necessary to prevent buildup.

To ensure the longevity and smooth functioning of new windows, regular maintenance is essential. This includes cleaning the glass and frames, inspecting seals for leaks or damage, and reapplying caulking as needed. It is also important to lubricate all moving parts and operating mechanisms to ensure they continue to operate smoothly.

It is generally recommended to remove window screens for the winter, especially in climates with heavy snow, freezing rain, or frigid temperatures. Removing them helps prevent damage to the screen mesh and frames that can be caused by ice and moisture buildup between the screen and the window. Taking out the screens also allows more natural light and warmth into your home during shorter winter days and makes it easier to clean your windows thoroughly. In warmer climates where harsh weather is not a concern, the decision is more about personal preference; some homeowners prefer the clearer view, while others leave them in for convenience.

Most window screens last for about 10 to 12 years, assuming they are made from quality materials and receive proper care. The lifespan of common materials like fiberglass and aluminum can vary based on weather exposure, as constant sun or harsh winters can accelerate wear and tear. Regular cleaning and basic maintenance can help extend their life. Signs that a screen needs to be replaced include rips, tears, brittle or sagging material, fading, or a bent frame. While small tears can often be repaired, larger areas of damage typically mean it's time to replace the entire screen.

Yes, a variety of screen materials cut out glare from the sun. Solar screen material can block up to 90% of the glare and heat from the sun, saving on cooling costs. It also offers privacy yet unlimited outward visibility. The cost depends on the size of the screen roll, but solar screens cost between $25 and $90 per roll.

The Mountainside, NJ homeowners’ guide to window and door contracting services

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