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    Verified insulation services reviews

Find Insulation pros in Hewitt

"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 Nicholas General Contracting Inc.

Nicholas General Contracting Inc.

5.00(
2
)

Nicholas General Contracting Inc.

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

With over 40 years of experience in the home improvement industry, our customers are delivered with the same expertise of National brands while keeping cost effective with standard amounts of overhead. We deliver a hands-on approach, where you work hand in hand with a member of the company's founding family through every stage of your project, from our first meeting to our final handshake at the end of your home improvement project. We have the capabilities to deliver a fast, clean, and expert level installation for any of your home improvement needs. That ranges from Kitchens, Bathrooms, Roofing, Attic insulation, Siding, Basements, Windows, Doors, Additions, and everything in between! We look forward to getting the chance to make your home part of the Nicholas Contracting family!

"Nicholas contracting did an amazing job on my home. My wife and I purchased a fixer upper and didn’t realize how much work would need to be done but the guys over at Nicholas contracting were extremely helpful in walking us through everything that we needed. Everyone we dealt with were polite and professional. We agreed on a timeline and they exceeded our expectations and made the entire project stress free. Would highly recommend this company and we look forward to using them again in the future!"

Nick S on December 2024

With over 40 years of experience in the home improvement industry, our customers are delivered with the same expertise of National brands while keeping cost effective with standard amounts of overhead. We deliver a hands-on approach, where you work hand in hand with a member of the company's founding family through every stage of your project, from our first meeting to our final handshake at the end of your home improvement project. We have the capabilities to deliver a fast, clean, and expert level installation for any of your home improvement needs. That ranges from Kitchens, Bathrooms, Roofing, Attic insulation, Siding, Basements, Windows, Doors, Additions, and everything in between! We look forward to getting the chance to make your home part of the Nicholas Contracting family!

"Nicholas contracting did an amazing job on my home. My wife and I purchased a fixer upper and didn’t realize how much work would need to be done but the guys over at Nicholas contracting were extremely helpful in walking us through everything that we needed. Everyone we dealt with were polite and professional. We agreed on a timeline and they exceeded our expectations and made the entire project stress free. Would highly recommend this company and we look forward to using them again in the future!"

Nick S on December 2024


With over 20 years of experience insulating homes in Northern New Jersey, we offer a range of thermal solutions for your attic, basement, walls, or crawlspace.


Foamco/Dr.EnergySaver

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Foamco/Dr.EnergySaver

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Insulation Consultant My Expertise in Cost-Effective and Efficient Project Management, Through eight years of dedicated research and hands on approach I have gained a comprehensive understanding of how to make your home, business, or any project as efficient as possible while maintaining a budget-friendly approach. My experience includes extensive training and certification in spray foam and other insulation solutions. I have also developed a strong understanding of the importance of communication and collaboration throughout a project. I make it a priority to keep my clients informed and involved every step of the way. By doing so, we can ensure that the final product meets all expectations, both in terms of functionality and cost. Additionally, I have a keen eye for detail and a passion for finding creative solutions to complex problems. This allows me to identify potential issues early on in a project and quickly develop effective solutions. Whether you are looking to improve the energy efficiency of your home or need a project manager for a larger construction project, I am confident in my ability to deliver exceptional results. Contact me today to learn more about my services and how I can help you achieve your goals.

Insulation Consultant My Expertise in Cost-Effective and Efficient Project Management, Through eight years of dedicated research and hands on approach I have gained a comprehensive understanding of how to make your home, business, or any project as efficient as possible while maintaining a budget-friendly approach. My experience includes extensive training and certification in spray foam and other insulation solutions. I have also developed a strong understanding of the importance of communication and collaboration throughout a project. I make it a priority to keep my clients informed and involved every step of the way. By doing so, we can ensure that the final product meets all expectations, both in terms of functionality and cost. Additionally, I have a keen eye for detail and a passion for finding creative solutions to complex problems. This allows me to identify potential issues early on in a project and quickly develop effective solutions. Whether you are looking to improve the energy efficiency of your home or need a project manager for a larger construction project, I am confident in my ability to deliver exceptional results. Contact me today to learn more about my services and how I can help you achieve your goals.


E & G PAINTING

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E & G PAINTING

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Free onsite estimate

WE INSTALL LAMINATE FLOORING, MOLDING, KITCHEN CABINETS, ENTIRE INTERIOR PAINTING WITH A GREAT SERVICES AND EXCELLENT PRICING. WE ALSO DO SHEETROCK INSTALATION. TAMBIEN HABLAMOS ESPANOL. WE ARE A SMALL BUT PROUD COMPANY LOOKING TO DO GREAT WORK FOR OUR CLIENTS.

WE INSTALL LAMINATE FLOORING, MOLDING, KITCHEN CABINETS, ENTIRE INTERIOR PAINTING WITH A GREAT SERVICES AND EXCELLENT PRICING. WE ALSO DO SHEETROCK INSTALATION. TAMBIEN HABLAMOS ESPANOL. WE ARE A SMALL BUT PROUD COMPANY LOOKING TO DO GREAT WORK FOR OUR CLIENTS.


F&D Handyman Services

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F&D Handyman Services

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2 years of experience

Professional and Skillful Handyman with 20+ years of experience conducting maintenance, repair, and improvement to residential homes, apartments, and offices. Offering professionalism and expertise in basic to moderate repairs and maintenance. Owner-operated which can help with significant savings compared to larger companies.or contractors.

Professional and Skillful Handyman with 20+ years of experience conducting maintenance, repair, and improvement to residential homes, apartments, and offices. Offering professionalism and expertise in basic to moderate repairs and maintenance. Owner-operated which can help with significant savings compared to larger companies.or contractors.


Olis home improvement

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Olis home improvement

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Free onsite estimate

Owner operated and veteran owned small business dedicated to make your home feel like home. With Olis home improvement llc. You get 20+ years of experience in the home improvement industry, from small bathrooms to a total basement remodel we are prepared to bring you top of the line work. If you need painting, caulking, Sheetrock, cabinet installation, flooring, backsplash and anything else your home may need.

Owner operated and veteran owned small business dedicated to make your home feel like home. With Olis home improvement llc. You get 20+ years of experience in the home improvement industry, from small bathrooms to a total basement remodel we are prepared to bring you top of the line work. If you need painting, caulking, Sheetrock, cabinet installation, flooring, backsplash and anything else your home may need.


"Absolutely 10/10 would recommend and use again! He answered in reasonable time, walked us through everything he was going to do / needed to be done, on time, and priced great! Everything came out amazing!"

Amanda M on March 2024

General contractor specializing in remodels from start to finish. Whether you are looking for an addition, bathroom remodel or someone to help tackle your honey do lists we have got you covered.

"Absolutely 10/10 would recommend and use again! He answered in reasonable time, walked us through everything he was going to do / needed to be done, on time, and priced great! Everything came out amazing!"

Amanda M on March 2024


M6 Builders LLC

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M6 Builders LLC

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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+

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Insulation questions, answered by experts

You don’t need to remove old insulation before adding new insulation. As long as the old insulation is still in good shape—not wet, physically damaged, or moldy—then you can stack new insulation on top of old insulation to get a compounding effect. You can also mix different types of insulation, like adding blown-in insulation around existing fiberglass batt insulation or installing rigid insulation boards over rafters in your attic that already have batt insulation installed. If your existing insulation is very old or damaged, though, you’ll likely see more benefit from removing it and replacing it instead.

Fiberglass is considered dangerous only if your skin comes into contact with it or if you breathe in any fiberglass particles. This is because fiberglass is literally made of tiny fibers of glass that can cut your skin and your organs. While there aren’t many long-term effects, it’s still important to take all the proper safety precautions when working with fiberglass.

2x4 walls can hold R-13 or R-15 batts of insulation, which is usually about 3.5 inches thick. You should also check with your local building codes to see if there’s a required thickness you need to adhere to. 

You can also use R-value maps to determine the best thickness and ratings for where you live. For example, someone in Texas doesn’t need as thick of insulation as someone in Montana. Energy Star has a good one you can reference.

You can buy pipe insulation materials in your local hardware store or in major home improvement stores. You can also shop for insulation online, where you may be able to more easily buy in bulk. When shopping, make sure you know your pipe's dimensions so you can buy the correct size of pipe insulation materials for your pipes.

Minimal, mainly occasional checks for damage or mold in extreme conditions.

The Hewitt, NJ homeowners’ guide to insulation services

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