The Best Window Installers in Mountainside, NJ

Compare the highest-rated windows professionals in Mountainside, New Jersey. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Renewal by Andersen of New Jersey & New York Metro

4.7
(950 reviews)
Verified

A premier provider and a subsidiary of the renowned Andersen Corporation. They specialize in a full-service replacement experience, from in-home consultation to professional installation. They are best known for their high-quality, custom-built, energy-efficient Fibrex® composite windows, which offer excellent durability and low maintenance.

200 U.S. 46, Budd Lake, NJ 07828 (Corporate office; serves Mountainside)

Specialties & Features

Custom window replacement
Energy-efficient windows
Full-frame installation

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

Garden State Window & Door

4.8
(180 reviews)
Verified

A highly-rated local contractor known for personalized service and expertise in both window and door installation and replacement. They work with leading brands and focus on energy efficiency and custom solutions for residential properties. Their strong reputation is built on quality craftsmanship and customer satisfaction.

1494 U.S. 22, Bridgewater, NJ 08807 (Serves Union County, including Mountainside)

Specialties & Features

Residential window replacement
New construction windows
Energy-efficient solutions

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Skyline Windows

4.5
(120 reviews)
Verified

A well-established local company with a long history of serving Union County and the surrounding areas. They offer a wide range of window services, from repairs to full replacements, and provide various product lines to fit different budgets and style preferences, including storm and security window options.

1122 Springfield Ave, Mountainside, NJ 07092

Specialties & Features

Window repair services
Storm and security windows
Custom window solutions

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

Why These Are the Top Windows Contractors in Mountainside

** The windows market for Mountainside, NJ, and its surrounding Union County suburbs is robust and competitive, characterized by a mix of large, branded manufacturers and smaller, specialized local contractors. The housing stock in this affluent suburban area consists largely of single-family homes from the mid-20th century, driving significant demand for window replacement focused on **energy efficiency** and modern aesthetics. * **Average Quality:** The market offers a wide spectrum, from budget-friendly vinyl replacements to high-end custom wood and composite products. Homeowners in this area tend to invest in mid-to-high-tier products for their durability and energy savings. * **Competition Level:** High. Numerous established companies compete for business, which generally benefits the consumer through competitive pricing and a strong emphasis on customer service and warranties. * **Typical Pricing:** Pricing is above the national average, reflecting the region's higher cost of living and labor. A full home window replacement can range widely from **$10,000 to $30,000+**, heavily dependent on the number of windows, the materials chosen (vinyl, wood, composite), and the complexity of the installation. High-performance, low-E glass and gas fills are standard for energy-efficient upgrades.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Mountainside regulations and climate

Frequently Asked Questions About Windows in Mountainside

Get answers to common questions about windows services in Mountainside, New Jersey.

1What is the typical cost range for a full home window replacement in Mountainside, and what factors influence the price?

In Mountainside, a full home window replacement typically ranges from $15,000 to $30,000+, depending on the home's size and window count. Key cost factors include the choice of material (vinyl, wood, or fiberglass), the quality of the glass (double or triple-pane Low-E for our climate), and the complexity of installation in older homes common to the area. Custom shapes, historical considerations, and high-performance options for New Jersey's cold winters and humid summers will increase the investment.

2Are there specific local permits or regulations in Mountainside, NJ, I need to be aware of for window installation?

Yes, the Borough of Mountainside requires a construction permit for window replacement, which your licensed contractor should typically obtain. If your home is in a designated historic district or is a historically significant property, there may be additional review by the Mountainside Historic Preservation Commission to ensure replacements meet aesthetic guidelines. Always verify your contractor is familiar with and handles these local requirements.

3What is the best time of year to schedule window installation in the Mountainside area?

While installation can be done year-round, late spring and early fall are ideal in our region, offering mild, dry weather that facilitates a smooth process. Winters can delay work due to snow and cold, and summer heat can be uncomfortable for the installers and your home. Scheduling several months in advance is wise, as reputable local companies book up quickly for these prime seasons.

4How do I choose a reliable window installation contractor in Union County, and what local credentials should I look for?

Prioritize contractors who are licensed, insured, and have a strong physical presence in Union County. Look for positive reviews from Mountainside and neighboring towns, and ask for local references you can contact. A reliable provider will be familiar with the specific wind loads, energy codes, and architectural styles of our area and should offer a strong warranty that is backed by both the manufacturer and their own company.

5With New Jersey's climate, what window features are most important for energy efficiency and comfort in my Mountainside home?

For our distinct four-season climate, prioritize double-pane or triple-pane windows with Low-E (low-emissivity) coatings and argon gas fill to insulate against winter cold and summer heat. Look for a low U-factor for insulation and a low Solar Heat Gain Coefficient (SHGC) to manage summer sun. Proper installation and sealing are critical to prevent drafts and moisture intrusion, which are common concerns with our freeze-thaw cycles and seasonal storms.