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!
Attic Air Gap Sealing
Are you tired of feeling drafts and temperature fluctuations in your home, even with the air conditioning or heating on? Do you suspect that there are air leaks in your attic space? If so, Master Attic’s Air Gap Sealing service can help.
The Master Attic team will thoroughly inspect your attic and identify any air gaps that may be causing unwanted air leaks. We use top-of-the-line materials and techniques to effectively seal these gaps, ensuring that your home remains energy-efficient and comfortable year-round.
Get your homes well-insulated and save money on energy bills. Contact us today to learn more about our Air Gap Sealing service and to schedule a consultation.
Every home is built in a way that air loss is presently costing you money in energy and may cause drafts, ice dams, dust, and uneven temperatures. When a contractor builds a home, areas like wires, pipes, and light fixtures, for example, are left with a larger hole around them that causes significant air loss. Especially the joining of walls in the attic is left with an air gap. Although your attic may be insulated, sealing these air leaks is critical to preventing roughly 15% air loss.
Top Rated Professional Air Gap Sealing Service
Master Attic is dedicated to providing top-rated professional Attic Air Gap Sealing services in New Jersey & eastern Pennsylvania. Our Air Gap Sealing service helps prevent air leaks in your attic, which can lead to energy waste, increased utility bills, and potential damage to your home. By choosing Master Attic for your Air Gap Sealing needs, you can rest assured that your attic is well-insulated and air-tight, ensuring a comfortable living environment and energy efficiency in your home. Our team will work with you to identify and address any air gaps in your attic, providing an effective solution that meets your specific needs. Contact us today to experience the difference in professional and reliable Air Gap Sealing services.
Our AIR GAP SEALING Process
At Master Attic, we utilize advanced techniques to safely and effectively seal air gaps in your home without causing any disruption or spreading contaminants. Our process involves:
1. Identify air leakage points
Our team at Master Attic will start by identifying the areas where the air is likely to leak into or out of your house. Common leakage areas in the attic include the joining of walls, around recessed lighting, vents, pipes and gas lines, and bathroom fan.
2. Seal the gaps
We will begin air gap sealing using spray foam to seal the gaps around doors, windows, pipes, and HVAC.
3. Seal attic penetrations
Attics can be a significant source of air leakage, so it's essential to seal any penetrations in your attic, such as vents, chimneys, and pipes. Our team will be using appropriate equipment and sealing products.
4. Add insulation (if needed)
Insulation is an integral part of air gap sealing, as it helps to prevent heat transfer between your home and the outdoors. Master Attic will insulate your attic walls and floors as needed to improve your home's energy efficiency.
5. Final Inspection and Cleanup
Before leaving, our team will clean the containment and work area to ensure it's left in the same/better condition as when we arrived, so you can rest assured that you're getting the highest quality service from Master Attic.
Benefits Of Getting Your Attic AIR GAP Sealed:
- Improved energy efficiency: Air gap sealing helps prevent air leaks, significantly improving your home’s energy efficiency.
- Enhanced indoor comfort: By sealing air gaps, you can also improve your indoor comfort. It can also help to maintain a consistent temperature and improve the overall comfort of your home.
- Reduced noise pollution: Sealing air gaps can help to reduce noise pollution and create a more peaceful environment in your home.
- Improved indoor air quality: Air leaks can allow dust, pollen, and other outdoor pollutants to enter your home. Sealing air gaps can help to prevent these pollutants from entering your home.
- Increased home value: An air gap sealing service can also increase the value of your home. A well-sealed home is more energy-efficient, comfortable, and healthy, making it more attractive to potential buyers if you decide to sell your home in the future.
Hiring an attic air gap sealing service company can offer several benefits for your attic’s overall health and safety and can save you money in the long run. Contact Master Attic Today!
Why have your Attic air gaps sealed?
Sealing your attic air gaps prevents air leaks and improves your home’s energy efficiency. Air leaks can cause heat loss in the winter and heat gain in the summer, leading to higher energy bills.
Air gap sealing can also improve indoor air quality, reduce noise pollution, and create a more comfortable living environment. Overall, air gap sealing is a cost-effective way to make your home more energy-efficient and healthy while reducing energy bills.
GET A FREE ESTIMATE NOW
Why Choose Us
Master Attic has bridged the gap between home efficiency and safety, rapidly becoming NJ and eastern PA’s #1 choice for your home’s Attic or Crawlspace.
Our team specializes in ensuring your Attic or Crawlspace is a place of calm and cleanliness. Ultimately, leaving your interior living space a healthy, energy-saving, rodent-free home for you and your family.

QUALITY ASSURANCE
As a leading brand in the attic insulation industry, our goal at Master Attic from the first initial conversation is to earn your trust and educate you on our industry-leading expertise for your Attic or Crawlspace. We provide professional and top-grade materials for your home, ensuring long-lasting, safe, and effective solutions that will bring many years of comfort and safety. Each job we approach is carefully planned and tailored to meet your needs and budget without sacrificing quality and integrity.
Most importantly, with our 25+ years of experience, all of our work is done in-house by Master Attic, Licensed and Insured technicians, who are hired and trained by our company directly. We have remediated thousands of attics and crawlspaces across NJ and PA, building quite the reputation for homeowners that are now our recommending and referring voices to their neighbors, friends, family, and across the internet, leaving us thousands of satisfied customers.
With premium customer care at the frontline of our work, rest assured, knowing confidently that our service was designed to be a safe, effective, turn-key operation for all your home’s attic and crawlspace needs.
FAQ
Frequently Asked Questions
What are air gaps?
Air gaps are spaces between two materials or objects that allow air to pass through. In homes & Attics, air gaps can exist around doors and windows, electrical outlets, pipes, ducts, and other areas.
Why should I seal air gaps in my home?
Sealing air gaps can significantly improve your home’s energy efficiency, reduce energy bills, and enhance indoor comfort. Air gap sealing can also help prevent dust, pollen, and other outdoor pollutants from entering your home and improve indoor air quality.
What are some signs of air leaks in my attic?
Common signs of air leaks include drafts, cold or hot spots in your home, high energy bills, and excessive dust or moisture in your home.
How is air gap sealing done in the attic?
Attic air gap sealing is done using professional-grade spray foam sealant. The process involves identifying air leaks in your attic and sealing them to prevent air from escaping or entering your home.
How long does attic air gap sealing take?
The duration of air gap sealing depends on the size of your attic, the number of air leaks, and the type of sealing product used. The schedule for your attic is part of the written estimate you get after the inspection.
Can I do air gap sealing myself?
While homeowners can do some air gap sealing, hiring a professional air gap sealing service is recommended to ensure that all air leaks are identified and sealed correctly.
Will air gap sealing require any major changes to my attic?
No, air gap sealing doesn’t require significant changes to your attic. Sealing air gaps is a non-invasive process that doesn’t require any structural changes.
Is air gap sealing expensive?
The cost of air gap sealing varies depending on the size of your home, the number of air leaks, and the type of sealing product used. However, air gap sealing is generally an affordable way to improve your home’s energy efficiency and indoor comfort. Contact Master Attic to get a free estimate.
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.
Check Out Our Blog
Read articles written by our team of professionals.

How Mice Are Getting Into Your Attic and How To Stop Them
How Mice Are Getting Into Your Attic and How To Stop Them Having critters like mice around your neighborhood and
Read More
Is Hantavirus Contagious?
Is Hantavirus Contagious? As a busy homeowner, you have enough going on in your daily life that it can be
Read More
How Does Insulation Work in the Summer? A Complete Guide
How Does Insulation Work in the Summer?: A Complete Guide With summer temperatures bringing sweltering heat, efficient insulation can prevent
Read MoreAir Gap Sealing Service Areas in New Jersey, Pennsylvania & Delaware
Master Attic proudly offers air gap sealing across New Jersey, eastern Pennsylvania and northern Delaware. Check your town below, or pick it on the map.
Service Locator
Check whether we cover your town.
Call or request a free estimate and our local team takes it from there.
Enter a NJ, PA or DE zip or town, or call and we'll confirm your coverage.
- 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.”
Don't see your town listed?
Call (800) 285-4009
Atlantic CountyBergen CountyBurlington CountyCamden CountyCape May CountyCumberland CountyEssex CountyGloucester CountyHudson CountyHunterdon CountyMercer CountyMiddlesex CountyMonmouth CountyMorris CountyOcean CountyPassaic CountySalem CountySomerset CountySussex CountyUnion CountyWarren CountyPhiladelphia CountyBucks CountyMontgomery CountyDelaware CountyChester CountyBerks CountyNorthampton CountyNew Castle CountyBergenfield, NJBrick, NJBridgeton, NJCarteret, NJCherry Hill, NJCliffside Park, NJEdison, NJEnglewood, NJFreehold, NJGlassboro, NJJackson, NJLakewood, NJLodi, NJManchester, NJMedford Lakes, NJMillville, NJNorth Brunswick, NJOld Bridge, NJParamus, NJPrinceton Junction, NJRidgewood, NJSomerset, NJSomerville, NJSouth Plainfield, NJToms River, NJBensalem, PAYardley, PACall Us
Email Us
Visit Our Office
2486 Ridgeway Blvd, Manchester Township, NJ 08759
SCHEDULE A FREE
IN-HOME ESTIMATE
Fill out the form below for inquiries or a free estimate and a member of our team will get back to you shortly.
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.

