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    Average homeowner rating
  • Verified reviews icon106
    Verified insulation services reviews

Top-Rated Insulation pros in Netcong - Updated Nov 2026

Avatar for Jersey State Insulations
Jersey State Insulations
5.0(
19
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving Netcong, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Emergency services offered

Warranties offered

"⭐⭐⭐⭐⭐ Excellent Work by Sebastian – Jersey State Insulations We recently had insulation work completed by Jersey State Insulations, and Sebastian and his team did an outstanding job. From the beginning, Sebastian was professional, knowledgeable, and very easy to work with. He took the time to explain the process, recommended the right insulation for our space, and made sure everything was properly sealed and installed. The workmanship was clean, efficient, and done with great attention to detail. No shortcuts — just solid, quality work. Sebastian was punctual, respectful of our home, and left the area clean after the job was finished. We’ve already noticed an improvement in comfort. I highly recommend Sebastian and Jersey State Insulations to anyone looking for reliable and professional insulation services."
Insulation Project
Removal and re installation
Insulation Project
Bernardsville cinema 3
Insulation Project

+52

Response time10 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Eternal Life Energy, LLC
Eternal Life Energy, LLC
4.7(
63
)
Blown-In Insulation - Install or Upgrade

Serving Netcong, NJ and surrounding areas

Approved

In business since 2008

Free estimates

Offers commercial services

"Can I give them a 10 for value for the money? Dave, the owner, was great. Unbeatable price and they did a great job. I'm actually shocked by what a difference it makes. My house had no insulation in the walls and the furnace ran constantly. Now when I touch the walls, instead of being ice cold, they are room temperature, and the furnace barely runs."
exterior walls
exterior walls
Response time11 hrs
Response rate85%
11 neighbors recently requested a quote
Avatar for Acorn Home Improvements Inc
Acorn Home Improvements Inc
4.6(
156
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Netcong, NJ and surrounding areas

Approved

In business since 1986

Free estimates

Warranties offered

"Acorn did a great job insulating my home. John explained the entire process and highlighted all the areas of focus. The crew arrived when they said and were very thorough and respectful. There was alot of dust, which was expected and his team covered as much as they could to help with the clean up. It's been over a week now and I have been monitoring heat usage thru Nest. There is a clear difference in the number of hours a day the furnace is on. I highly recommend John and the Acorn team for insulation work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Netcong, NJ and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"RetroFoam of Michigan deserves more than five stars. The representative who gave me an estimate was prompt and professional. The office staff who called to tell me installers were ahead of schedule was kind and courteous as I answered during a busy day at work. The crew who came to insulate my garage was extraordinary. They made sure my garage was left clean. They even mopped the garage floor before they left! The crew leader explained the process of insulating with foam and exactly how the holes in my walls would be patched before the team left. I am an educator of 30 years and a licensed builder. I've remodeled and flipped homes and have rental units. I'm used to swinging a hammer alongside others. This company is made up of hard-working people who charge a fair price and do exceptional work. I have advice for those that run the company - take care of your installation crews! They are exceptional! If you've read this far and are interested in having your house/garage insulated give them a call now. You will be happy you did. Now...I'm looking forward to enjoying a warm man-cave garage on cold nights!"
RetroFoam Wall Insulation
Installing RetroFoam
RetroFoam with Siding
RetroFoam with Brick
Response time1 day
Response rate100%
121 neighbors recently requested a quote
Avatar for Acorn Home Improvements, Inc.
Acorn Home Improvements, Inc.
4.2(
94
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Netcong, NJ and surrounding areas

Approved

In business since 1986

Free estimates

Warranties offered

"We couldn't be more pleased with Acorn's services. We had insulation blown in from the outside, as well as our attic done, and we feel a huge difference. The team that came to our house to do our insulation, Nate, Rajan and TJ, was the best! They were incredibly friendly, polite, and most importantly - thorough, both in the job that they did and also in tidying up. We can't say enough good things!"
Siding and Blown-in Cellulose Insulation Wayne
Insulation
Completed Wayne
Completed Wayne
CertainTeed - Granite Grey

+10

Response time1 day
Response rate91%
Recommended by85%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
351
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Netcong, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Credit card accepted

"I have only glowing things to say about our experience using Home Genius Exteriors. From the thorough initial estimate and comprehensive inspection of the worksite and what the job would entail to the final bit of blown-in insulation, our multi-team project was completed to our satisfaction in a timely and professional manner. In the course of four days, we had a new roof, new trim, new gutters, and new insulation. Each part of the project required a different team. Each crew finished their task within the projected timeframe. Home Genius coordinated everything, including ordering and delivering the materials and arranging for the delivery and removal of the dumpster. Thanks to our Project Coordinator Ivan, every step in the process went smoothly. He arranged for workers to be at our home on consecutive days: we did not have any time in between steps waiting for availability of the next team. Ivan kept us informed of progress at every step of the way."
Roofing
Roofing
Roofing
Roofing
Roofing

+74

Recommended by72%of homeowners
Avatar for Paulsen Insulation Co.
Paulsen Insulation Co.
4.1(
10
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallInjection Insulation - Install

Serving Netcong, NJ and surrounding areas

Approved

In business since 1965

Free estimates

Credit card accepted

Paulsen Insulation Company is a family owned and operated company, providing the best insulation services since 1965. We provide quality products and service; satisfying the highest standards in the building industry. For more than Fifty years, we have been insulating new construction, existing homes, and commercial buildings. With the prices of fuel rising so dramatically, we know how important it is to conserve energy and keep your homes heating and cooling expenses low. Call us today! or visit our website for basic insulation knowledge or a free estimate www.paulseninsulation.com \n

Spray Foam slope ceiling
Spray foam exterior walls closec cell foam
Closed Cell Foam R-76(11") installed into 12&
Spray foam exterior wall cavities
Insulated slope ceiling's and exterior walls

+20

Response time2 days
14 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Atticrawl, LLC
Atticrawl, LLC
4.7(
18
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Netcong, NJ and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Welcome to Atticrawl, LLC \nWe pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Attic Insulation
Attic Insulation
54 neighbors recently requested a quote
Recommended by62%of homeowners
...
Showing 1-10 of 108
Insulation FAQs, answered by experts

You should not put fiberglass insulation in basements, since fiberglass is known to trap mold and mold is more commonly grown and produced in basements. You should also avoid placing insulation near water heaters, oil burners, or other hot appliances. For more information about the best and worst places to install insulation, consider hiring an insulation professional.

Asphalt roofs provide better insulation than metal roofs, but that doesn’t always mean that asphalt roofs are better for reducing heating and cooling bills. In hotter climates, metal roofs will usually be better for home efficiency because the material reflects more sunlight and reduces solar heat gain. In colder climates, asphalt roofs are sometimes superior in terms of efficiency because they introduce more solar heat gain to your home and have greater insulating capabilities. However, metal roofs installed with an air gap can provide similar levels of insulation.

A DIY blown-in insulation project in a typical attic should take you no more than a week to complete. Experienced homeowners can blow an entire attic in one or two days.

EIFS (Exterior Insulation and Finish System) siding can last from 20 to 60 years, with some properly maintained systems lasting even longer. The exact lifespan depends heavily on several factors, most notably the quality of the initial installation and the consistency of maintenance.

Factors that can shorten the life of EIFS include:

  • Improper or poor-quality installation

  • Moisture intrusion

  • Damage from high winds, storms, or hail

  • Damaged flashing and sealant

  • Lack of regular maintenance and unfixed damage

To maximize the lifespan of your EIFS, it is crucial to hire an experienced and qualified professional for the installation. Additionally, regular maintenance—such as cleaning, repairing small cracks or blisters, and having the system professionally inspected—will help identify and resolve issues quickly, preventing long-term damage.

Yes, you need a 1.5-inch to 2-inch air gap in a cathedral ceiling to allow proper air flow and prevent cathedral ceiling venting problems. This amount of airspace allows warm, moist air to properly leave your ceiling to avoid moisture build-up and other issues that put your home at risk. You can also add an air vent for extra air flow.

The Netcong, NJ homeowners’ guide to insulation services

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