Master Attic did a phenomenal job with our attic insulation and duct replacement. We had a loss from smoke damage from a neighboring fire and we were met with compassion and excellent customer service from Danny Jones and Jorge Diaz. We chose them for their quality of work, expertise and fair pricing and they got the job done promptly. Thank you for the excellent work and we will be recommending you highly!





If your home has a basement you may have noticed your floors getting cooler in the wintertime. Insulation in the basement is not a requirement but will add an extra guarantee that you will use less energy and keep your floors warmer. Especially if your rim joists have not been air sealed and insulated. The rim joists are the perimeter of the basement, which is a wood square sill plate in each bay, that is up against the top exterior walls. Behind this bay is only siding or a brick exterior wall, allowing cold drafts to pass through very easily and making the floor cold. Without insulation and air sealing in the basement and rim joists, cold air is coming into your home and heat is escaping by not being contained in the home. It’s recommended to have insulation in all four areas like the attic, walls on each side, and basement or crawlspace to lock in the energy you are pumping in and contain it. As well, when sealing any air holes in the rim joists and basement prevents any rodents from entering your basement or home preventing any further damage elsewhere.
Benefits of the basement and rim joist insulation and air sealing:
- Save energy
- Lower utility bills
- Prevent drafts
- Keep out rodents
- Warm the floors
- Regulate interior temperature
Hear What Our Customers Are Saying
Read Five-Star Reviews From New Jersey Homeowners
We just had our attic insulation replaced, and the entire experience was pleasant from start to finish. Robert is knowledgeable, honest and easy to work with at the initial estimate period. Roberta and his crew did a great job replacing the attic insulation for our house. They were very professional, efficient and respectful. They did everything that needed to be done and left the space clean and in excellent condition. I am very happy that I chose Master Attic and would highly recommend them.
Dan Jones and the Ronald crew did a great job from start to finish! I had original insulation in my attic with no electricity, not an easy job. Our upstairs was very hot in the summer and cold in winter. With having central air, we still needed AC units and space heaters to manage. Dan set up a great plan to eliminate that. He and his crew were able to come and finish the job shortly after we first met. They were quick, clean and managed to crawl into small spaces to remove old insulation and install fresh insulation. We have already noticed a major difference! Highly recommended!!
We hired Master Attic to clean out debris, mice, old insulation, and replace with new insulation in both our attic spaces. Roberto and his crew did a phenomenal job. They were extremely professional, polite, and did a fantastic job. They invited my husband to see the attic after each step, and took pictures on their phone to show me since I could not get up in the attic. They took the time to protect the space with plastic sheeting before the job up in the attic, and then cleaned up everything perfectly afterwards. I highly recommend them!
Great job by the team. Cleaned out the entire attic and replaced all the old insulation with new fresh insulation. Made a huge difference. Alex was great to work with and was very professional. Would highly recommend.
Awesome experience from start to finish. Rob provided a great assessment and capabilities overview, arrived on time and was very generous and thorough in explaining the work. I signed on the spot. A crew of six arrived (again, on time) and completely transformed our attic space - thoroughly cleaned out the old insulation (looked spotless afterwards), sanitized the space, sealed it/rodent proofed it, added baffles and of course, replaced the insulation and added more in areas that needed it. Completed the whole job in half a day and we are delighted with the result. Thank you, Master Attic team, for a job very well done! Highest recommendation.
What a great experience I had with this company and its employees. It started with initially interacting with Joe who came out for the estimate. He was funny because he came down from my attic and said "have you seen up there". I laughed because I had and I knew it was bad. He was no pressure and no nonsense. Gave me an estimate and said if I wanted we could have the work done next day. I wasn't ready for that but after some schedule juggling I told him we could be ready. Joe had his guys out next morning with the best part being Jorge calling me to advise he was about thirty minutes out. I appreciate when I am given a heads up as to ETA. Three of them arrived Jorge set out plastic and covered exposed furniture. Jorge, Angel and Gonzalo were all polite and worked hard to complete the task. They worked efficiently and were done quickly. Jorge made sure he included me in each step of the process and when I saw the finished product I was amazed. I can actually use my attic for storage if I choose to do so. I did not realize when they were here that they also do work on crawlspace areas. I will be calling them back to see what they can do for my crawlspace which easily rivals the diasaster called my attic. I recommend at least giving this company and its employees an opportunity to help you.
Great company to work with. From beginning to end, Dan came out, spent plenty of time with me going over everything that needed to be done, and the process of everything that needed to be updated it both attics. His professionalism was top notch, answered all my question and concerns. When it came time for George and his six-man crew to do the work their quality of workmanship was well above average, they were here the whole day, and I don't think they even had a lunch break (hopefully I don't get him in trouble). They all worked and everyone knew what their job was, they removed all the insulation, cleaned, spray foamed all holes and top plates, re-insulated both attics and cleaned up like they weren't even here. Will definitely use them again.
Master Attic remediated a bat issue for us back in October and I can’t say enough about what a wonderful job they did. The work was guaranteed and they encouraged us to call if we say any further evidence of bats. Well, there were a few droppings in the attic and they quickly responded to our concerns. Jose’s crew came out on a SUNDAY, inspected the attic, and sealed up several spots that could be entry points. They were professional, efficient, and kind. I would highly recommend them. You will not be disappointed.
Basement & Rim Joist Insulation Service Areas in New Jersey, Pennsylvania & Delaware
Master Attic proudly offers basement & rim joist insulation across New Jersey, eastern Pennsylvania and northern Delaware. Check your town below, or pick it on the map.
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- Licensed & insured in NJ, PA and DE
- 25+ years of attic & crawlspace experience
- 5.0★ Google rating from 765+ homeowners
“The staff was courteous, professional, thorough and communicated well. I couldn’t have asked for better service.”
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Service area
Master Attic service area: New Jersey and eastern Pennsylvania
Not on the list? Call (800) 285-4009
- New Jersey
- Atlantic, Bergen (Bergenfield Cliffside Park Englewood Lodi Paramus Ridgewood), Burlington (Medford Lakes), Camden (Cherry Hill), Cape May, Cumberland (Bridgeton Millville), Essex, Gloucester (Glassboro), Hudson, Hunterdon, Mercer (Princeton Junction), Middlesex (Carteret Edison North Brunswick Old Bridge South Plainfield), Monmouth (Freehold), Morris, Ocean (Brick Jackson Lakewood Manchester Toms River), Passaic, Salem, Somerset (Somerset Somerville), Sussex, Union and Warren counties.
- Pennsylvania
- Berks, Bucks (Bensalem Yardley), Chester, Delaware, Montgomery, Northampton and Philadelphia counties.
- Delaware
- New Castle County.

