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  • Verified reviews icon292
    Verified window and door contracting services reviews

Find Window and door contractors in Mountainside

Avatar for Star Windows Doors and Siding, LLC

Star Windows Doors and Siding, LLC

4.96(
207
)
Approved Pro

Star Windows Doors and Siding, LLC

4.96(
207
)
Approved Pro
Super Service Award
Customers say: Quick response
26 years of experience
Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Full insurance cover on PC411535

"Highly recommend Star windows. They are great windows installer. Happy customer."

Sean E W on October 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Full insurance cover on PC411535

"Highly recommend Star windows. They are great windows installer. Happy customer."

Sean E W on October 2025


Avatar for Home Genius Exteriors

Home Genius Exteriors

5.00(
129
)
Approved Pro

Home Genius Exteriors

5.00(
129
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
21 years of experience

Elevate your home with Home Genius Exteriors, setting the standard in New Jersey by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It’s time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

"We used Home Genius to replace 6 old, inefficient windows. Chuck sold them to us for a great price, set very reasonable expectations and managed the project flawlessly. Chris and his crew did a great job at installation and we couldnâ t be happier with the results. Highly recommended."

Charles H on September 2024

Elevate your home with Home Genius Exteriors, setting the standard in New Jersey by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It’s time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

"We used Home Genius to replace 6 old, inefficient windows. Chuck sold them to us for a great price, set very reasonable expectations and managed the project flawlessly. Chris and his crew did a great job at installation and we couldnâ t be happier with the results. Highly recommended."

Charles H on September 2024


Avatar for Heartland Village General Contracting and Handyman Services

Heartland Village General Contracting and Handyman Services

4.88(
175
)
Approved Pro

Heartland Village General Contracting and Handyman Services

4.88(
175
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
31 years of experience

WE ARE OPEN WITH SAFETY PRECAUTIONS ,,LICENSE AND INSURED NEW YORK,,NASSAU COUNTY,, NEW JERSEY AREAS, EPA LEAD CERTIFIED. We work with insurance claims With over 25 years of experience, Heartland Village Handyman Services is the top choice for Home Renovation and Repairs . We offer a full-range of Contracting Services including Remodeling,, Repairs, and virtually all phases of Home Improvement. We pride ourselves on customer satisfaction, and value our relationships. Proud recipient of the Angie's List Super Service Award Winner for 2016, 2017, and 2018, 2019, 2020, 2021, 2022 We offer affordable rates Give us a call today to schedule your free consultation

"I highly recommend this company Heartland Village General Contracting Handyman Services of Staten Island, N.Y. Harvey the owner & his excellent team were professional, punctual & attentative to every detail in building my beautiful handicap TREX brown boards & Grey metal railings ramp to my front door. This fantastic company also closed in my screen house for the rain & possibly snow cold winter months with this beautiful design of Plexiglass. His team also completed odd jobs of installing two door bells, replaced damaged tiles in my kitchen & installed tinting sheets on four kitchen windows which I love. Thank you Harvey & your professional team of excellence. Sue M. - Staten Island 9/12/25"

sue m on September 2025

WE ARE OPEN WITH SAFETY PRECAUTIONS ,,LICENSE AND INSURED NEW YORK,,NASSAU COUNTY,, NEW JERSEY AREAS, EPA LEAD CERTIFIED. We work with insurance claims With over 25 years of experience, Heartland Village Handyman Services is the top choice for Home Renovation and Repairs . We offer a full-range of Contracting Services including Remodeling,, Repairs, and virtually all phases of Home Improvement. We pride ourselves on customer satisfaction, and value our relationships. Proud recipient of the Angie's List Super Service Award Winner for 2016, 2017, and 2018, 2019, 2020, 2021, 2022 We offer affordable rates Give us a call today to schedule your free consultation

"I highly recommend this company Heartland Village General Contracting Handyman Services of Staten Island, N.Y. Harvey the owner & his excellent team were professional, punctual & attentative to every detail in building my beautiful handicap TREX brown boards & Grey metal railings ramp to my front door. This fantastic company also closed in my screen house for the rain & possibly snow cold winter months with this beautiful design of Plexiglass. His team also completed odd jobs of installing two door bells, replaced damaged tiles in my kitchen & installed tinting sheets on four kitchen windows which I love. Thank you Harvey & your professional team of excellence. Sue M. - Staten Island 9/12/25"

sue m on September 2025


Avatar for Monk's Home Improvements

Monk's Home Improvements

4.80(
532
)
Approved Pro

Monk's Home Improvements

4.80(
532
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
18 years of experience

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.

"Fair price, very thorough scoping and quoting, great management and communication, and very skilled and friendly workers. Will continue working with Monks on all future home improvement needs."

David R on November 2025

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.

"Fair price, very thorough scoping and quoting, great management and communication, and very skilled and friendly workers. Will continue working with Monks on all future home improvement needs."

David R on November 2025


Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.84(
151
)
Approved Pro

Basement Gurus, LLC

4.84(
151
)
Approved Pro
Customers say: Quality work
15 years of experience
Free onsite estimate

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025


Avatar for A Condo LLC

A Condo LLC

4.90(
119
)
Approved Pro

A Condo LLC

4.90(
119
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
22 years of experience

A Condo LLC began as a general works contractor in 2001. Owners are always onsite to supervise jobs. We provide Kitchen and Bathroom remodeling, Tile and Hardwood flooring, Windows and doors installation, Crown moldings, trims and base installation, Sheetrock, Spackle and painting. We also provide Handyman and Cleaning services. Over the years our company has undertook many challenging projects and accumulated skills," know how", and experience in all kinds of home improvements. Our objective is to provide our clients with an "I am assured" experience when we are chosen to execute their projects. Our vision is to be a respectable building contractor always delivering beyond expectations.

"Mike and his helper were there all day and did a great job. will higher Mike again for simper small jobs that require great skill."

Daniel Z on August 2025

A Condo LLC began as a general works contractor in 2001. Owners are always onsite to supervise jobs. We provide Kitchen and Bathroom remodeling, Tile and Hardwood flooring, Windows and doors installation, Crown moldings, trims and base installation, Sheetrock, Spackle and painting. We also provide Handyman and Cleaning services. Over the years our company has undertook many challenging projects and accumulated skills," know how", and experience in all kinds of home improvements. Our objective is to provide our clients with an "I am assured" experience when we are chosen to execute their projects. Our vision is to be a respectable building contractor always delivering beyond expectations.

"Mike and his helper were there all day and did a great job. will higher Mike again for simper small jobs that require great skill."

Daniel Z on August 2025


"Fast good price clean"

Jason H on September 2024

Tri-State is the manufacturer and installer of premium quality vinyl windows and patio doors. We do the entire job ourselves, no subcontractor or middleman! Tri-State builds them, installs them and we guarantee them.

"Fast good price clean"

Jason H on September 2024


Succasunna Screen Repairs

4.96(
36
)
Approved Pro

Succasunna Screen Repairs

4.96(
36
)
Approved Pro
Super Service Award
Customers say: True professional
23 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity and quality work. We are experts in our Window and Door Screen Repairs and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.

"Great guy. Great service "

Donald G on August 2025

We pride our company on reliability, great communication, integrity and quality work. We are experts in our Window and Door Screen Repairs and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.

"Great guy. Great service "

Donald G on August 2025


Avatar for J & E Painting and Power Washing, LLC

J & E Painting and Power Washing, LLC

4.81(
71
)
Approved Pro

J & E Painting and Power Washing, LLC

4.81(
71
)
Approved Pro
Super Service Award
Customers say: Quick response
25 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Job was done correctly as required."

Jay G on October 2025

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Job was done correctly as required."

Jay G on October 2025


Avatar for AMS Home Improvements, LLC

AMS Home Improvements, LLC

4.85(
89
)
Approved Pro

AMS Home Improvements, LLC

4.85(
89
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
29 years of experience

AMS Home Improvements is locally owned and operated since 1996. We pride ourselves on the quality craftsmanship and the top notch customer service you will get. We are an American Quality Craftsmanship contractor. We have built, designed, and renovated many clients homes and 2nd homes throughout the state. Experience the difference with our owner operated company. We stand by our workmanship. We work on your home the way we would work on our own home. We are reliable. We can provide as many references and pictures as you need. 100% financing available.

"We’ve worked with Armando & AMS Home Services on a wide range of projects in our home, from minor repairs like patching drywall and fixing window sills, to major undertakings such as finishing our basement, building a shed, and most recently, constructing a large backyard patio. Across every project, the quality of their work has been exceptional. Armando and his entire team are professional, efficient, and respectful of our home and property. They communicate clearly, show up on time, and always deliver exactly what they promise — often ahead of schedule and exceeding all expectations! If you’re looking for a contracting team who take pride in their work, treat your home like their own, and can handle anything from routine maintenance to large-scale builds, AMS Home Services should be at the top of your list. Armando and the entire team at AMS Home Services are like family to us and we wouldn’t trust our home projects with anyone else! "

Nick C on August 2025

AMS Home Improvements is locally owned and operated since 1996. We pride ourselves on the quality craftsmanship and the top notch customer service you will get. We are an American Quality Craftsmanship contractor. We have built, designed, and renovated many clients homes and 2nd homes throughout the state. Experience the difference with our owner operated company. We stand by our workmanship. We work on your home the way we would work on our own home. We are reliable. We can provide as many references and pictures as you need. 100% financing available.

"We’ve worked with Armando & AMS Home Services on a wide range of projects in our home, from minor repairs like patching drywall and fixing window sills, to major undertakings such as finishing our basement, building a shed, and most recently, constructing a large backyard patio. Across every project, the quality of their work has been exceptional. Armando and his entire team are professional, efficient, and respectful of our home and property. They communicate clearly, show up on time, and always deliver exactly what they promise — often ahead of schedule and exceeding all expectations! If you’re looking for a contracting team who take pride in their work, treat your home like their own, and can handle anything from routine maintenance to large-scale builds, AMS Home Services should be at the top of your list. Armando and the entire team at AMS Home Services are like family to us and we wouldn’t trust our home projects with anyone else! "

Nick C on August 2025

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FAQs for window and door contracting projects in Mountainside, NJ

Door installation usually takes three and four hours, including removing the old door and frame, fitting the new door and frame in place, shimming it to make sure it’s perfectly level, and making adjustments to the hinges and locking mechanisms to ensure proper functionality. A door-hanging professional can replace an interior door in between one and two hours. Door installation will take significantly longer if your installer needs to create a wall opening, and it can take less time if the existing door frame remains.

If you have a problem with your window, such as broken glass, minor leaks, or a problem with your window being stuck, repairing the broken part might be a cheaper option than replacing the entire window. However, if you have a deteriorating window frame or major leaks, buying a new window will be the better long-term solution.

The average cost to install a door is around $1,100, but you could pay anywhere from $150 for a hollow-core interior door installation up to $2,000 or a high-end exterior door installation. There are a few cost factors to consider to get an accurate price, including whether your wall opening exists, the type of door, the quality and security of the door, whether you need to replace the frame, and the door size. You can expect to pay $150 to $700 for a standard 36-by-80-inch door and between $400 and $1,600 for an 80-by-48-inch door.

Window replacement costs between $180 and $410 per window, or an average of $280 per window. However, your specific replacement job could cost as little as $100 or as much as $750. Factors such as frame material, the number of windows you need, and the type of glass you order all impact the overall cost. For example, simple double-glazed windows will cost $3 to $6 per square foot, but the stronger tempered glass ranges from $12 to $14 per square foot.

It’s possible to install a door yourself if the wall opening already exists, but the work is rather complicated, and a professional installation is usually well worth the investment. For your door to work and close properly, you’ll need to shim and level the door frame in your wall perfectly, which can be difficult. Additionally, we recommend you always hire a professional door installer to place an exterior door, as mistakes during the installation process can lead to poor security for your home.

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.