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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon61
    Verified insulation services reviews

Find Insulation pros in Randolph

Avatar for Acorn Home Improvements Inc

Acorn Home Improvements Inc

4.63(
144
)
Approved Pro

Acorn Home Improvements Inc

4.63(
144
)
Approved Pro
Customers say: Quality work
70 local quotes requested
39 years of experience

We are local, family owned home improvement company specializing in wood and vinyl replacement windows, vinyl siding, roofing and blown-in cellulose insulation. We are fully licensed and insured. We offer free in home consultations and estimates, with the use of thermal-imaging technology. We have been serving the community for 30 years, with a reputation of delivery high quality products at a great value. Additional email: [email protected].

"Acorn was great. As a first time homeowner, I appreciated the recommendations they made for replacing the old insulation in our attic and getting the largest bang for our buck. At the same time, they didn't try to upsell us on things other contractors recommended. Overall, the price was competitive and the work quality was high."

Sam R on December 2024

We are local, family owned home improvement company specializing in wood and vinyl replacement windows, vinyl siding, roofing and blown-in cellulose insulation. We are fully licensed and insured. We offer free in home consultations and estimates, with the use of thermal-imaging technology. We have been serving the community for 30 years, with a reputation of delivery high quality products at a great value. Additional email: [email protected].

"Acorn was great. As a first time homeowner, I appreciated the recommendations they made for replacing the old insulation in our attic and getting the largest bang for our buck. At the same time, they didn't try to upsell us on things other contractors recommended. Overall, the price was competitive and the work quality was high."

Sam R on December 2024


"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


Landa Home Improvement LLC

No reviews yet

Landa Home Improvement LLC

No reviews yet
11 years of experience

I am Raul Landa, owner of my business Landa Home Improvement LLC. I've been a general Home Improvement Contractor for approx. 10 years. Serving Sussex County NJ and the surrounding counties. My services include: demolition, remodeling, painting, tile & flooring, kitchen & bathroom remodeling, siding, door installations, stair installation & railings, porches & decks, framing, insulation, and more. Please provide a detailed description of your project. Contact: 973 868 0474.

I am Raul Landa, owner of my business Landa Home Improvement LLC. I've been a general Home Improvement Contractor for approx. 10 years. Serving Sussex County NJ and the surrounding counties. My services include: demolition, remodeling, painting, tile & flooring, kitchen & bathroom remodeling, siding, door installations, stair installation & railings, porches & decks, framing, insulation, and more. Please provide a detailed description of your project. Contact: 973 868 0474.


ARG SOLUTIONS ON TIME

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ARG SOLUTIONS ON TIME

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Family-owned company with skilled HVAC Service Technician with 15+ years of experience in maintaining and preparing customer heating and cooling systems. Customer and safety-oriented professional able to handle heavy workloads and deliver high-quality installations and repairs.

Family-owned company with skilled HVAC Service Technician with 15+ years of experience in maintaining and preparing customer heating and cooling systems. Customer and safety-oriented professional able to handle heavy workloads and deliver high-quality installations and repairs.



"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

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

4.55(
47
)

Home Genius Exteriors

4.55(
47
)
Customers say: Super punctual
743 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!

"Hired the team for the roof! Would recommend, Fred was awesome!"

Chris R 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!

"Hired the team for the roof! Would recommend, Fred was awesome!"

Chris R on October 2025


Avatar for Retrofoam - Pridemark Construction LLC

Retrofoam - Pridemark Construction LLC

No reviews yet

Retrofoam - Pridemark Construction LLC

No reviews yet
17 years of experience

Pridemark Construction LLC is a family-owned and operated business. The owners are 3rd and 4th generation Building Restoration Mechanic, with 42 + years of building restoration and renovation experience, specializing in landmarks and older structures. After experiencing Retrofoam in action, we quickly realized the positive impact it could have on the lives of those we served. Incredible energy savings, protection from fire, bugs, mold, rodents and also sound, so we changed our business model to focus mainly on Retrofoam Injection. Retrofoam gives us the relatively inexpensive ability, to insulate any un or under-insulated home or business, without the high cost and mess of removing and replacing walls and ceilings. Your home is your most valuable asset. Our background and experience, uniquely qualify us to address all the problems yours may have, while also bringing your home to peak efficiency, keeping you and your family safer and more comfortable during the hottest and coldest weather, while also saving you money. We always have Financing available and the moment your project is complete, Retrofoam starts paying for its self through energy savings. My family and I are dedicated to bringing honest, fair, lasting service and value, to you and your family, and we look forward to serving you

Pridemark Construction LLC is a family-owned and operated business. The owners are 3rd and 4th generation Building Restoration Mechanic, with 42 + years of building restoration and renovation experience, specializing in landmarks and older structures. After experiencing Retrofoam in action, we quickly realized the positive impact it could have on the lives of those we served. Incredible energy savings, protection from fire, bugs, mold, rodents and also sound, so we changed our business model to focus mainly on Retrofoam Injection. Retrofoam gives us the relatively inexpensive ability, to insulate any un or under-insulated home or business, without the high cost and mess of removing and replacing walls and ceilings. Your home is your most valuable asset. Our background and experience, uniquely qualify us to address all the problems yours may have, while also bringing your home to peak efficiency, keeping you and your family safer and more comfortable during the hottest and coldest weather, while also saving you money. We always have Financing available and the moment your project is complete, Retrofoam starts paying for its self through energy savings. My family and I are dedicated to bringing honest, fair, lasting service and value, to you and your family, and we look forward to serving you


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;

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Insulation questions, answered by experts

Yes, many professionals offer insulated siding for improved energy efficiency.

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.

Yes, exposure to fiberglass insulation can cause harm to your skin and eyes. However, this typically refers to the fiberglass insulation that is mostly used in walls and attics. Fiberglass doors don’t pose risks for fiberglass exposure because they're fully encased in polymer cladding.

Insulating ducts prevent or significantly reduce condensation by reducing temperature differences between the duct surface and surrounding air. Proper insulation also minimizes sweating, improves energy efficiency, and prevents moisture damage. However, if humidity levels are unusually high or there are air leaks, additional measures like sealing ducts and using a dehumidifier may be needed.

High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home’s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).

The Randolph, NJ homeowners’ guide to insulation services

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