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    Average homeowner rating
  • Verified reviews icon67
    Verified insulation services reviews

Find Insulation pros in Knowlton

"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


"Beavers Building is awesome. From planning to completion Musaddiq was amazing. He has an attention to detail that is honest and refreshing. I would definitely recommend Beavers Building for home improvement needs. Musaddiq turned my dreary ceiling into a beautiful focal point. He does not rush and problem solves as he creates the final product. I cannot say enough about his work. I hope to work with him in the future!"

Charles E on September 2025

Premium home improvement company specializing in carpentry and drywall. We offer services for renovations, restorations, and additions.

"Beavers Building is awesome. From planning to completion Musaddiq was amazing. He has an attention to detail that is honest and refreshing. I would definitely recommend Beavers Building for home improvement needs. Musaddiq turned my dreary ceiling into a beautiful focal point. He does not rush and problem solves as he creates the final product. I cannot say enough about his work. I hope to work with him in the future!"

Charles E 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
973 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


Avatar for Retrofoam - Pridemark Construction LLC

Retrofoam - Pridemark Construction LLC

1028 Glass St
No reviews yet

Retrofoam - Pridemark Construction LLC

1028 Glass St
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


ONeil Brothers Home Service & Repair, LLC

178 Valleyview Rd
No reviews yet

ONeil Brothers Home Service & Repair, LLC

178 Valleyview Rd
No reviews yet

We are a local small handyman service that focuses on providing our customers with great quality work and exceptional customer service. There are many professionals in the construction industry, yet so many just dont seem to act professional. They simply provide just little to no real customer service to their customers. At ONeil Bros., We believe that along with producing quality work we strive to give & guarantee our customers trust, peace of mind, satisfaction, comfort and happiness with the job always completed. ONeil Bros. is composed of two members of whom are brothers. Between them both they have experience in carpentry, framing, drywall, painting, decks, patios, siding, plumbing, electrical , and many more odds and ends. Also we both specialize in home energy solutions (insulation) Types of insulation we can install: blow in cellulose, fiber glass batts, blanket wraps, radiant barriers, and mineral wool. We also do crawl space clean-outs,vapor barriers,and basement wall wraps. Feel free to contact us no matter what the job. Because if we can do it, we will do it.

We are a local small handyman service that focuses on providing our customers with great quality work and exceptional customer service. There are many professionals in the construction industry, yet so many just dont seem to act professional. They simply provide just little to no real customer service to their customers. At ONeil Bros., We believe that along with producing quality work we strive to give & guarantee our customers trust, peace of mind, satisfaction, comfort and happiness with the job always completed. ONeil Bros. is composed of two members of whom are brothers. Between them both they have experience in carpentry, framing, drywall, painting, decks, patios, siding, plumbing, electrical , and many more odds and ends. Also we both specialize in home energy solutions (insulation) Types of insulation we can install: blow in cellulose, fiber glass batts, blanket wraps, radiant barriers, and mineral wool. We also do crawl space clean-outs,vapor barriers,and basement wall wraps. Feel free to contact us no matter what the job. Because if we can do it, we will do it.


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

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Insulation questions, answered by experts

A radiant barrier is worth the money if you live in a hot, sunny climate. Over time, you should be able to recoup your investment through lower energy bills. Though it can vary depending on where you live and the type of barrier you choose, you might be able to reduce your electric bill by as much as 5% to 10% after installing a radiant barrier.

There are many ways to keep your house cool without central air. In fact, ductless mini-split AC systems are a solid alternative to central AC for situations when you can’t install ducts in your home. If you’re looking for a more budget-friendly cooling solution, consider using window AC units or portable air conditioners.

Although it’s not required, air ventilation in a finished basement can help improve the air quality, prevent moisture and mold issues, keep musty odors away, and also maintain the air quality throughout the rest of your home. Proper ventilation will help maintain the value of your investment in finishing your basement. Try basement ventilation methods like installing vents or a dehumidifier for best results.

Water heater blanket prices range from $20 to $40 on average, though you typically won’t need to spend more than $30 for all the tools and materials required for installation—which include the blanket itself, heavy-duty scissors, and electrical tape. Blankets with higher R-values will also be slightly higher in price.

Yes, insulating hot water pipes helps your system run more efficiently. This is especially true in basements in colder climates, where cold air likes to settle in. There are a few ways to insulate water pipes (foam is common) to keep hot water hot, reducing the need for your water heater to constantly heat the water in the tank or your circulator to kick on more than necessary.

The Knowlton, NJ homeowners’ guide to insulation services

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