Serving Mount Holly, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 1999
Free estimates
Warranties offered
"I would recommend Home Insulation Experts, Inc for insulation services. They came to my house installed the insulation we needed and did a great job."
+10
Serving Mount Holly, NJ and surrounding areas
Approved
In business since 1981
Free estimates
Credit card accepted
"Brad, gave us the estimate at first and it was a very educational experience. He took the time to explain all the intricate details of the insulation process. Nino, Drew and James were likewise very informative and polite. They also suggested some things I could improve upon to increase my savings through the winter and summer months. We just had it done so it is too early to tell how much of a difference it is going to make but I cant wait. I should be all set now. Bring on the cold!!!!"
+4
Serving Mount Holly, NJ and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
Fair pricing, clean installs, and real results. We specialize in attic and crawl space insulation, air sealing, and moisture control—done right the first time and built to last. Call or text anytime: (732) 800-7300
+10
Serving Mount Holly, NJ and surrounding areas
Approved
In business since 2016
Free estimates
Small jobs welcome
"Craig and his crew did a great job with the insulation project. Spray foam was applied to the knee wall attic and cellulose blown in my top attic floor. Craig and his crew was courteous and respectful of my property and did a great job with the cleanup. I highly recommend Craig for any insulation projects you may have. It is a great investment on your property. Hire NP Energy!"
+13
Serving Mount Holly, NJ and surrounding areas
Approved
In business since 2013
Free estimates
Customers say: Quick response
"AMAZING! Brittin fixed our insulation in the attic which involved removing old batting, spraying in new insulation, and a few other projects to seal up fixtures, adding exhaust fans, replacing attic stairs etc. We've noticed a change instantly in the efficiency of our cooling system - it hardly has to run at all now to reach the desired temperature and it holds the temperature really well. I was so impressed with how thorough they were, right from the initial inspection and quote through to cleaning up their work area. The team left my place looking cleaner than it was to start! Everything was laid out clearly in the quote and as a bonus, they are approved to offer the NJ Clean Energy rebates etc so can work with you to answer questions on this and make sure you're getting the best price. The team explained everything while they were working and asked questions along the way to ensure everything was OK with me. They were just all-round polite and a pleasure to deal with. THANK YOU SO MUCH TO YOUR WHOLE TEAM!"
+22
Serving Mount Holly, NJ and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"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."
+106
Serving Mount Holly, NJ and surrounding areas
Approved (Corporate)
In business since 2023
Free estimates
Warranties offered
RetroFoam of Philadelphia is an insulation contractor specializing in foam insulation for existing homes, including injection foam to insulate existing walls. In an effort to increase comfort and reduce high energy bills, RetroFoam of Philadelphia helps homeowners improve their existing home's insulation without the hassle of a full remodel.
Serving Mount Holly, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Offers commercial services
"We did an addition on our home and hired Thermo Shield to do our insulation. Professional, clean and easy to work with."
Serving Mount Holly, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2005
Free estimates
Emergency services offered
Elevate your home with Home Genius Exteriors, setting the standard in Philadelphia 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!
+82
Serving Mount Holly, NJ and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
Score Spray Foam is a family based business with over 50 years of experience in the construction business! Come to us for your insulation needs. There is no job to big or small.
+17
Local and federal rebates are available for insulation installation, which can significantly reduce your overall costs. Many utility companies offer incentives or rebates to homeowners who improve their home's energy efficiency. Contact your local energy provider or government agencies to learn about available programs in your area, and consult with a professional insulation installer to maximize your savings.
It's not necessary to remove old insulation before adding new insulation, as long as the existing insulation is in good condition—dry, free of mold, and not damaged. Adding new insulation on top of old insulation can improve your home's energy efficiency by increasing the overall R-value. However, if the old insulation is wet, moldy, or damaged, it's best to remove it before installing new insulation to prevent potential health risks and ensure optimal performance.
Insulating a house takes between five and twelve hours for batts or boards, and two to five hours for spray foam or blown-in insulation. The exact time depends on the size of your home, the type of insulation, and the accessibility of the areas being insulated. Keep in mind that projects may take longer if old insulation needs removal, if there's a larger square footage, or if spaces are difficult to reach.
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