The Best Insulation Contractors in Demarest, NJ

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

#1

Interstate Insulation Systems

4.8
(180 reviews)
Verified

A leading and highly specialized insulation contractor serving North Jersey for over two decades. They are renowned for their expertise in high-performance spray foam and blown-in insulation, particularly for complex projects in older homes common to the Demarest area. They strongly emphasize comprehensive air sealing as part of their process.

75 Roosevelt Pl, Rochelle Park, NJ 07662 (Approx. 7 miles from Demarest)

Specialties & Features

Spray foam insulation
Blown-in insulation
Air sealing services

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#2

Green Attic Insulation

4.7
(150 reviews)
Verified

This company has built a strong reputation on customer service and energy efficiency. They offer a full suite of insulation services with a focus on attic insulation upgrades and energy audits. They are well-versed in local utility rebate programs (like those from PSE&G) and help homeowners navigate them to reduce costs.

Serves the entire North Jersey area, including Demarest (Primarily operates from a Paterson, NJ service area)

Specialties & Features

Attic insulation installation
Energy efficiency audits
Insulation removal and replacement

Business Information

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

A+ Insulation Inc.

4.6
(90 reviews)
Verified

A reliable, family-owned contractor known for quality workmanship in all types of insulation, including basement, crawl space, and wall insulation. They are praised for their clean work and clear communication. They effectively handle both new construction and retrofit projects for existing homes.

Serves Northern NJ from their base in Kenilworth, NJ (Approx. 20 miles from Demarest)

Specialties & Features

Basement and crawl space insulation
Wall insulation services
Blown-in insulation

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Demarest

** The insulation market in Demarest, NJ, is characterized by high demand for quality and expertise, driven by the community's mix of historic, older homes and significant modern residences. Homeowners in this area are typically highly educated on energy efficiency and are willing to invest in premium services that improve comfort and reduce long-term energy costs. The competition level is moderate to high, but it is segmented between large, general contractors and specialized, high-performance insulation experts. The latter group tends to dominate the market for dedicated insulation projects. **Typical Pricing:** Due to the high cost of living and labor in Bergen County, pricing is at a premium. Projects are often quoted based on the R-value and square footage. * **Blown-In Cellulose/Fiberglass (Attic):** $1,500 - $4,500 * **Spray Foam Insulation (Open Cell):** $2.50 - $4.00 per board foot * **Spray Foam Insulation (Closed Cell):** $4.50 - $7.50 per board foot * **Wall Insulation (Blown-in):** $1.50 - $3.00 per square foot of wall space * **Energy Audit:** $400 - $800 Homeowners are advised to obtain multiple quotes and verify that contractors are fully licensed and insured, and knowledgeable about New Jersey's specific building codes and available energy rebate programs.

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 Demarest regulations and climate

Frequently Asked Questions About Insulation in Demarest

Get answers to common questions about insulation services in Demarest, New Jersey.

1What are the most important types of insulation for Demarest homes given our local climate?

For Demarest's humid summers and cold winters, a balanced approach is key. Attic insulation (like blown-in cellulose or fiberglass) is critical to prevent heat loss in winter and attic heat gain in summer. Additionally, air sealing and proper basement or crawl space insulation are vital to manage moisture and drafts common in our region. The recommended R-value for attics in NJ is typically R-49 to R-60.

2How much does insulation installation typically cost for a Demarest homeowner?

Costs vary by home size, insulation type, and areas serviced, but Demarest homeowners can expect to invest between $1,500 to $4,500 for a standard attic insulation project. Regional material and labor costs influence pricing, and whole-house upgrades (adding wall insulation, air sealing) can range from $5,000 to $15,000+. Always get itemized estimates from local contractors.

3Are there any local New Jersey or Bergen County rebates or incentives for upgrading insulation?

Yes, New Jersey's Clean Energy Program (NJCEP) offers rebates for home insulation and air sealing through participating contractors. Additionally, the federal tax credits for energy efficiency improvements (up to 30% of cost, with limits) apply. It's essential to use a NJCEP-registered contractor in Demarest to qualify for state incentives and ensure work meets program standards.

4What is the best time of year to install insulation in Demarest, and how long does it take?

Insulation can be installed year-round, but fall is often ideal in Demarest, as it prepares your home for winter heating and contractors have more availability before the busy season. Most single-area projects (like an attic) are completed in 1-2 days. Scheduling in advance is wise, as late fall and winter can see high demand.

5How do I choose a reliable insulation contractor in the Demarest area?

Look for a licensed, insured, and NJ-certified contractor with specific experience in our older housing stock. Check for membership in local associations like the Building Contractors Association of New Jersey. Always verify they perform a pre-installation energy assessment, provide detailed quotes, and offer warranties on both materials and labor. Get references from recent Demarest or Bergen County projects.