Top-rated window and door contractors.

Best window and door contractors near Mountainside, NJ

Enter your zip and get matched with up to 5 pros

Need a pro for your window and door contracting project in Mountainside, NJ?

Select your specific project to find the pro for you.

TRUSTED BY MOUNTAINSIDE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon626
    Verified window and door contracting services reviews

Verified Reviews for Window And Door Contracting pros in Mountainside, NJ

*The Angi rating for Window And Door Contracting 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 And Door Contracting needs.

*The HomeAdvisor rating for Window And Door Contracting 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 And Door Contracting needs.

Last update on March 29, 2026

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%
8 neighbors recently requested a quote
Request Quote
Avatar for A Condo LLC
A Condo LLC
4.8(
124
)
Doors (Exterior) - Install or ReplaceDoors (Interior) - Install or Replace

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"A+ for showing up when expected. A+ for being courteous and respectful of property. A+ for quality of work performed. Definitely on my list of preferred contractors."
Bathroom remodeling
Built in bookshelf
Bathroom remodeling
Before
Bathroom remodeling

+57

Response time3 days
Response rate100%
2 neighbors recently requested a quote
Request 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%
3 neighbors recently requested a quote
Request Quote
Avatar for The Flying Locksmiths of New Jersey
The Flying Locksmiths of New Jersey
4.5(
74
)
Doors (Exterior) - Install or Replace - For BusinessDoors (Interior) - Install or Replace - For BusinessDoors - Repair - For Business+1 more

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Excellent work! He fixed the door, aligned it perfectly, and adjusted the hinges — all done in just 40 minutes. Fast, professional, and reliable service. Highly recommend"
Double Tree
Zoe's Kitchen
Garage Door
Commercial Building
Five Below

+5

Response time1 day
Response rate91%
17 neighbors recently requested a quote
Request 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
Request Quote
Avatar for L&V Window Cleaning
L&V Window Cleaning
5.0(
25
)
Door or Window Screens - Install or Repair

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"Came and completed job per their appointment. window washing I have recommended him to others."
Recent Cleanings
Cleaned by L&V
Recent Cleanings
The Finished Result!
Prior to Our Service

+2

Response time8 hrs
Response rate88%
1 neighbors recently requested a quote
Request Quote
Avatar for Essex Replacement Door & Window, Inc.
Essex Replacement Door & Window, Inc.
4.5(
40
)
Doors (Exterior) - Install or ReplaceDoors (Exterior) - Install or Replace - For BusinessSliding Door - Install+3 more

Serving Mountainside, NJ and surrounding areas

Approved

In business since 1982

Free estimates

Credit card accepted

"The process of ordering the door and installation was great. Very friendly staff. I am very pleased with the work that was done."
Response time2 days
Recommended by88%of homeowners
Request Quote
Avatar for Monk's Home Improvements Inc.
Monk's Home Improvements Inc.
4.7(
600
)
New Windows - 6 +Doors (Exterior) - Install or ReplaceNew Windows - 3-5

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

19 neighbors recently requested a quote
Recommended by92%of homeowners
Request Quote
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
Request Quote
...
Showing 1-10 of 863
Window Door Contractors FAQs, answered by experts

The screen on many screen doors is held in place by screen spline. Screen spline is typically a thin vinyl tubing that fits into the groove of the door’s frame and holds the screen in place. To install the spline on a screen door, you’ll need a spline roller—a tool that presses the spline and screen into the door’s narrow groove. Note that old spline can crack and break, so replacing your screens is a good time to replace the spline, too.

Drafts, condensation between panes, difficulty operating, or visible frames or glass damage are signs of needed repairs.

Yes, you can add a screen door to most door frames. The screen should be able to fit standard-size door frames, so unless you have an unusually sized door, you shouldn’t have an issue. Just make sure to properly measure the frame. When in doubt, it’s best to let a pro take care of this task for you so it’s installed correctly.

Egress windows require regular maintenance to ensure they function correctly. This includes cleaning the glass, inspecting the frame and well for debris, and making sure the cover or well drains properly. It is also important to check that the window sills and wells are watertight and to inspect and repair any damage to the window frame or seals to prevent leaks and maintain functionality.

Most window screens in residential homes are designed to be removed from the inside, especially with double-hung, single-hung, and casement styles. That said, some setups require exterior removal. Older homes or custom installs may have exterior clips or brackets, and sunscreens are almost always mounted on the outside. Before removing your window screen, look at how it is held in place.

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.

See all articles