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TRUSTED BY WANTAGE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon23
    Verified insulation services reviews

Top-Rated Insulation pros in Wantage - 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 Wantage, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Emergency services offered

Warranties offered

"I can’t say enough nice things about Jersey State Insulation. Sebastian and his crew are absolutely amazing. They work very hard and are very conscientious of your home. When they did the insulation on my home they were very careful when moving things around and cleaning up after the job was done. Sebastian is very friendly and made every effort to explain everything and make sure I was happy with the work being done. I met with other insulation companies, but none seemed nearly as competent as Jersey State. The others wanted to charge me a lot more for something I didnt think I needed. The others though my problem was only the attic. Sebastian inspected the attic and said there was nothing it needed. Other contractors didn’t even want to attempt blow-in insulation, but Sebastian and his crew did it and the result is fantastic"
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 Home Insulation Experts, Inc.
Home Insulation Experts, Inc.
4.9(
1,211
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Wantage, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Warranties offered

"The house had no insulation in the walls and very old insulation in the attic. Home Insulation Experts, Inc team were a pleasure to work with. Very polite and courteous, respected my home and kept me informed throughout the process. I highly recommend them for any insulation job!"
Fiberglass Insulation
Cellulose Insulation
Fiberglass Batt Insulation
Dense Pack Wall Insulation
Closed Cell Spray Foam

+10

Response time9 hrs
Response rate99%
321 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 Wantage, 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 RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Wantage, NJ and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"Hired Retro Foam of Philadelphia to install foam insulation on 3 sides of my townhouse on Wildwood Crest. They did a great job, the team of Frank, Mike, Kevin and Keith were very respectful of our property, They were very friendly and mannerly during the process. when they left, you did not even know they were at my home. Great Job Bob/Jackie Marnie"
RetroFoam Wall Insulation
Installing RetroFoam
RetroFoam with Siding
RetroFoam with Brick
Response time1 day
Response rate100%
121 neighbors recently requested a quote
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 Wantage, 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 Atticrawl, LLC
Atticrawl, LLC
4.7(
18
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Wantage, 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
Avatar for Metro NY Insulation
Metro NY Insulation
4.5(
6
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Wantage, NJ and surrounding areas

In business since 2005

Credit card accepted

Metro NY Insulation is a green focused, cellulose insulation contractor that works with homeowners to help them save money on their heating and cooling costs. By sealing the home to prevent drafts from allowing heated (or cooled) air from escaping, home works more efficiently and uses less energy. We are accredited by the Building Performance Institute (BPI) for Building Envelope and Building Analyst to view the whole building as a system and allow it to breathe properly while still retaining the heat in the winter and the conditioned air in the summer. Proper ventilation and insulation leads to a healthier home, with fewer mold issues and less likelihood of developing ice dams in the winter. We do more than just add insulation, we do full scale weatherization to keep you and your home healthy. \n\nWe also do interior wall soundproofing to reduce noise transfer from room to room.\n\nWe use only 100% Borate infused National Fiber Cel-Pak so you won't have to worry about the toxic off-gasing or ammonia smell from inferior insulation used by other companies.\nAll employees are trained and trusted. NO SUBCONTRACTORS. Free in-home assessment. Costs are determined by the scope of the job - we do everything to the BPI specifications. \nWe do more than just insulate - WE WEATHERIZE!!!

Rafter Chutes
Recessed Light Covers
Cellulose Installed
Recommended by83%of homeowners
Avatar for Eco Green Solutions
Eco Green Solutions
5.0(
28
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Wantage, NJ and surrounding areas

In business since 1987

Free estimates

Emergency services offered

Turn to the experts at Eco Green Solutions for all your mold, flood, water, fire, smoke, and air quality restoration, damage, clean-up and insulation needs. With our 100% guarantee, Eco Green Solutions is the most-trusted full-service residential and commercial environmental restoration company serving Westchester, Putnam, Dutchess, Rockland and Orange counties NY, as well as Fairfield County, CT. We understand how devastating environmental hazards can be to you, your family, home and business. That’s why our top-qualified team provides exceptional customer response and service, with our 24x7 Emergency Hotline and direct insurance billing support. And, as always, we offer free estimates, inspections and audits to detect, restore, prevent and renovate your property with our eco-friendly, green solutions for a safe and healthy environment. As a fully licensed, bonded and insured company, our exclusive Eco Green Solutions Quality Control Process ensures we do the job right, with our client’s best interest at heart.

Additional Photos
Recommended by100%of homeowners
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Insulation FAQs, answered by experts

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.

Whether plaster walls should be insulated depends on whether the walls are at particular risk of moisture problems. In many cases, you can insulate plaster walls, while in others, it's a poor decision because of the lack of a vapor barrier. Choose a reputable insulation contractor to help you decide if and how to proceed to increase your home's energy efficiency.

The lifespan of insulation depends on the material type. Fiberglass can last between 80 and 100 years, but it is important to start checking it around the 15-year mark. Spray foam has a lifespan of up to 100 years, and mineral wool can last up to 100 years. Cellulose, an eco-friendly option, has a lifespan of 20 to 30 years.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

On average, insulating an attic costs about $2,500, with a typical range of $1,500 to $3,500. The final price often depends on the attic's size, with costs generally falling between $1 to $3 per square foot. For example, insulating a 1,800-square-foot attic would likely cost between $1,800 and $5,400.

If the project involves removing old insulation, this can add an average of $900 to the total cost, bringing a full removal and reinsulation project to around $3,000.

Several factors influence the overall cost:

  • Insulation Type: Prices per square foot vary significantly by material.

  • Reflective: $0.50–$1.50

  • Blown-in: $1–$4

  • Batt: $2–$4

  • Loose-fill: $2–$5

  • Spray foam: $2–$5

  • Structural insulated panels (SIPs): $4–$7

  • Project Complexity: Factors like sealing air leaks, poor attic accessibility, and required inspections can add to the cost.

  • Removal Issues: The discovery of mold, asbestos, or pests during the removal of old insulation can substantially increase the price.

The Wantage, NJ homeowners’ guide to insulation services

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