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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon69
    Verified insulation services reviews

Find Insulation pros in Glen Gardner

"I recently hired Sebastian and his company to install new fiberglass insulation and Densepack in my attic. I found them to be extremely professional. They did the work as quoted, cleaned up after they were done and took all the trash away. I would highly recommend them."

Gail S on July 2025

Jersey State provides insulations such as: closed/open cell insulation, blown in insulation, sound and firestop insulation. We also retrofit houses for green and comfort energy. Family owned and operated. Business experience 15 years plus

"I recently hired Sebastian and his company to install new fiberglass insulation and Densepack in my attic. I found them to be extremely professional. They did the work as quoted, cleaned up after they were done and took all the trash away. I would highly recommend them."

Gail S on July 2025


Avatar for Master Attic, LLC

Master Attic, LLC

2486 Ridgeway Blvd
4.94(
50
)
Approved Pro

Master Attic, LLC

2486 Ridgeway Blvd
4.94(
50
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
87 local quotes requested

Servicing NJ/PA/DE At Master Attic, our goal is to provide you with the highest quality materials and workmanship at an affordable price. We are a team of licensed, trained professionals with 20+ years of experience in insulation and rodent solutions. May it be rodent proofing, insulation removal, insulation installation, sanitizing, moisture barrier, radiant barrier, air duct repair replacement, or crawlspace cleaning, we have you covered. Do you hear noises in the attic? Smell something in the crawl space!? Schedule an appointment today, and have one of our technicians come out to assess the area and provide a free detailed estimate for the project.

"I RECENTLY HAD MY ATTIC INSULATION REPLACED BY MASTER ATTIC. ALEX CAME OUT RIGHT ON SCHEDULE AND GAVE ME A FAIR PRICE. ( I DID HAVE 4 OTHER ESTIMATES) THE CREW LEAD BY ROBERTO WAS AMAZING. THEY WERE VERY CONSIDERATE, CAREFUL IN MAKING SURE THE AREA WAS SEALED OFF AND WERE VERY CAREFUL OF MY PERSONAL BELONGINGS. THEY DID A GREAT JOB IN REMOVING OLD INSULATION , VACUUMING OUT THE ATTIC ,SPRAYED AREA AND SEALED ANY OPENINGS. BEFORE THEY BROUGHT IN NEW INSULATION, THEY ASKED ME IF I WISHED TO TO VIEW THE ATTIC AND I DID. I WAS AMAZED EVEN AT THIS POINT, HOW CLEANED EVERYTHING LOOKED . (THIS INSULATION HAD BEEN UP THERE FOR 70 YEARS) NEW INSULATION WAS INSTALLED AND IT LOOKS GREAT. THE CREWED CLEANED UP EVERYTHING , EVEN VACUUMED THE AREA IN THE ROOM. ALL BAGS OF OLD INSULATION WERE REMOVED PROMPTLY AND I WOULD HIGHLY RECOMMEND THEM TO ANYONE."

Robin S on September 2025

Servicing NJ/PA/DE At Master Attic, our goal is to provide you with the highest quality materials and workmanship at an affordable price. We are a team of licensed, trained professionals with 20+ years of experience in insulation and rodent solutions. May it be rodent proofing, insulation removal, insulation installation, sanitizing, moisture barrier, radiant barrier, air duct repair replacement, or crawlspace cleaning, we have you covered. Do you hear noises in the attic? Smell something in the crawl space!? Schedule an appointment today, and have one of our technicians come out to assess the area and provide a free detailed estimate for the project.

"I RECENTLY HAD MY ATTIC INSULATION REPLACED BY MASTER ATTIC. ALEX CAME OUT RIGHT ON SCHEDULE AND GAVE ME A FAIR PRICE. ( I DID HAVE 4 OTHER ESTIMATES) THE CREW LEAD BY ROBERTO WAS AMAZING. THEY WERE VERY CONSIDERATE, CAREFUL IN MAKING SURE THE AREA WAS SEALED OFF AND WERE VERY CAREFUL OF MY PERSONAL BELONGINGS. THEY DID A GREAT JOB IN REMOVING OLD INSULATION , VACUUMING OUT THE ATTIC ,SPRAYED AREA AND SEALED ANY OPENINGS. BEFORE THEY BROUGHT IN NEW INSULATION, THEY ASKED ME IF I WISHED TO TO VIEW THE ATTIC AND I DID. I WAS AMAZED EVEN AT THIS POINT, HOW CLEANED EVERYTHING LOOKED . (THIS INSULATION HAD BEEN UP THERE FOR 70 YEARS) NEW INSULATION WAS INSTALLED AND IT LOOKS GREAT. THE CREWED CLEANED UP EVERYTHING , EVEN VACUUMED THE AREA IN THE ROOM. ALL BAGS OF OLD INSULATION WERE REMOVED PROMPTLY AND I WOULD HIGHLY RECOMMEND THEM TO ANYONE."

Robin S on September 2025


M6 Builders LLC

309 Richmond Street
No reviews yet

M6 Builders LLC

309 Richmond Street
No reviews yet
Free onsite estimate

Premium commercial & residential builders. Building & Carpentry Services including Trims, Drywall, Framing, Insulation, Wall & Floors, Ceilings, Demolition, Doors, Painting & More! Minority Owned Fully Licensed & Insured OSHA 30+

Premium commercial & residential builders. Building & Carpentry Services including Trims, Drywall, Framing, Insulation, Wall & Floors, Ceilings, Demolition, Doors, Painting & More! Minority Owned Fully Licensed & Insured OSHA 30+


Avatar for Home Genius Exteriors

Home Genius Exteriors

399 Campus Dr
4.54(
46
)

Home Genius Exteriors

399 Campus Dr
4.54(
46
)
Customers say: Super punctual
959 local quotes requested

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!

"Fred and John were great communicating with me about my project! Would recommend!"

Jean V on October 2025

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!

"Fred and John were great communicating with me about my project! Would recommend!"

Jean V on October 2025


Pentagon Custom Building

No reviews yet

Pentagon Custom Building

No reviews yet
11 years of experience

Pentagon Custom Building is a pet-friendly Company with a trustworthy people. When we start a project we finish and meet our client's expectation- provides 100% satisfaction guarantee. License and Insured company so clients are all covered. Sums up to 100% Reliable Roofing Service, Remodeling Service, Kitchen Remodeling, Bathroom Remodeling, Flooring, Framing, Plumbing, Electrical, Drywall, Carpentry West Grove NJ;

Pentagon Custom Building is a pet-friendly Company with a trustworthy people. When we start a project we finish and meet our client's expectation- provides 100% satisfaction guarantee. License and Insured company so clients are all covered. Sums up to 100% Reliable Roofing Service, Remodeling Service, Kitchen Remodeling, Bathroom Remodeling, Flooring, Framing, Plumbing, Electrical, Drywall, Carpentry West Grove NJ;


Contractor Sandoval Carpentry & Painting

10 3rd Street
No reviews yet

Contractor Sandoval Carpentry & Painting

10 3rd Street
No reviews yet
23 years of experience

Our business is ran by the boss Atilano Sandoval, who is the person in charged of leading the job. Whom ever is working on any of our jobs responds to Atilano. We are perfectionist, all work done by us is completely professional and as neat as possible. You can make payments by check or cash. We do payment plans while we are getting the job done. Once the job is completely done, all payment should be made.

Our business is ran by the boss Atilano Sandoval, who is the person in charged of leading the job. Whom ever is working on any of our jobs responds to Atilano. We are perfectionist, all work done by us is completely professional and as neat as possible. You can make payments by check or cash. We do payment plans while we are getting the job done. Once the job is completely done, all payment should be made.


Windlock Construction

150-49 15th Dr
No reviews yet

Windlock Construction

150-49 15th Dr
No reviews yet
37 years of experience

Wind-lock Construction is a waterproofing and construction company that has accredited reputation in the tri-state area. The company's CEO Muzafer Javid has been working in this field for over 30 years under two managements of Windlock Construction and Tri State Construction and Restoration Inc. All worker are licensed professionals.

Wind-lock Construction is a waterproofing and construction company that has accredited reputation in the tri-state area. The company's CEO Muzafer Javid has been working in this field for over 30 years under two managements of Windlock Construction and Tri State Construction and Restoration Inc. All worker are licensed professionals.


Air Duct Services

No reviews yet

Air Duct Services

No reviews yet
18 years of experience

Think Green, Breathe CLEAN! 1-443-494-9838 When it comes to cleaning your home and maintaining a sanitary environment inside your home with good quality indoor air, there is more than just simple air filter changes involved- it Involves BIG HEART and little beet of TIME and TEAM WORK. AIR DUCT SERVICES team! 1-443-494-9838

Think Green, Breathe CLEAN! 1-443-494-9838 When it comes to cleaning your home and maintaining a sanitary environment inside your home with good quality indoor air, there is more than just simple air filter changes involved- it Involves BIG HEART and little beet of TIME and TEAM WORK. AIR DUCT SERVICES team! 1-443-494-9838



Pinnacle Blueprint Investment Group, LLC

35-37 Broadway Ave
No reviews yet

Pinnacle Blueprint Investment Group, LLC

35-37 Broadway Ave
No reviews yet
Free onsite estimate

Whether you’re planning a new residential or commercial development or undertaking the rehabilitation of an existing property, we can provide valuable project management assistance during the pre-construction and construction phases of your project. Before one shovel of dirt is turned, we prepare timelines and establish target dates for reaching significant project milestones. We assist with the selection of a highly qualified design team and then coordinate and direct the activities of the architect and other technical consultants to keep the project focused during the design phase. Our experience in project management and budgeting, along with the intricate knowledge of maintenance and operational requirements for multi-family housing, is especially beneficial during preliminary design. By considering these issues early in the design process, we help our clients avoid costly mistakes to possess the confidence that the final project can be efficiently operated and maintained. Our company ensures the guidance of all projects through planning and zoning review in addition to the often-complex process of public agency approvals. We review final construction and bid documents, pre-qualify contractors and assist in evaluation and selection of the right contractor.

Whether you’re planning a new residential or commercial development or undertaking the rehabilitation of an existing property, we can provide valuable project management assistance during the pre-construction and construction phases of your project. Before one shovel of dirt is turned, we prepare timelines and establish target dates for reaching significant project milestones. We assist with the selection of a highly qualified design team and then coordinate and direct the activities of the architect and other technical consultants to keep the project focused during the design phase. Our experience in project management and budgeting, along with the intricate knowledge of maintenance and operational requirements for multi-family housing, is especially beneficial during preliminary design. By considering these issues early in the design process, we help our clients avoid costly mistakes to possess the confidence that the final project can be efficiently operated and maintained. Our company ensures the guidance of all projects through planning and zoning review in addition to the often-complex process of public agency approvals. We review final construction and bid documents, pre-qualify contractors and assist in evaluation and selection of the right contractor.

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Insulation questions, answered by experts

Mineral wool has an excellent life expectancy of up to 50 years, provided it's kept dry and free of pests. Compared to fiberglass, with a life span of 20 to 30 years, mineral wool stacks up well for long-term cost savings. Sheep wool maintains a similar life span to fiberglass, while estimates for hemp wool insulation life expectancies are all over the board, ranging anywhere from 20 to 100 years.

It is possible to insulate your walls without removing drywall, but it’s not a good idea to attempt the work yourself. A professional can use blown-in insulation or spray foam insulation to fill wall voids without opening up the walls, and the option they use typically depends on your climate and whether or not there’s insulation in your wall already that can remain in place. Spray foam insulation costs more and isn’t always a viable option, but it’s a better insulator. Call in an expert to help decide which is right for you.

According to a report from Energy.gov, radiant barrier installations can save between 5% and 10% on your energy bill each month that your HVAC cooling is in operation. That fact can mean savings of up to more than $325 per year for homes that experience frequent direct sunlight and high summer temperatures. 

While adding insulation can be beneficial, there is too much of a good thing. Too much insulation can seal your house to the point where it can't release moisture that enters it—essentially trapping water vapor inside. Warm, humid climates are extra susceptible to mold from moisture issues, but homes in colder climates can experience condensation from an air-tight home when freezing temperatures thaw.

Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.

The Glen Gardner, NJ homeowners’ guide to insulation services

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