Keeps the mess outside: Carrying old insulation through the house spreads dust into clean rooms, so our exterior-staged system keeps debris out of your living space.
Professional Insulation Removal in Princeton, NJ
Let Our Insulation Experts Show You The Many Benefits Of Our High Performance Insulation.
Along the central New Jersey corridor, four full seasons test your attic, from snowy, heat-hungry winters to warm, humid summers. In the region’s older, tighter homes, insulation that has settled, dampened, or drawn rodents quietly drives up bills. Professional removal clears the old material so your attic is clean and ready to work efficiently again.
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Trusted
Signs You Are Due for Removal
Across Mercer and Middlesex, cold winters and humid summers wear attic insulation down, and it is worth a closer look when you notice:
Cold rooms and rising heating bills as settled or thin insulation lets warm air escape
Ice dams or attic moisture that leave insulation damp, matted, or moldy
Knob-and-tube wiring in older and pre-war homes that has to be cleared for upgrades
Mice and squirrels nesting in the attic and leaving droppings and debris behind
Humid-summer musty odors that point to aging or moisture-laden material
Remodels or additions in mid-century houses that call for opening the attic first
A Superior
Comfort Through Every Season
A clean removal starts with the right equipment. We stage our vacuum system outside the home and pull old insulation straight into a sealed container, so dust, fibers, and allergens stay out of your rooms. For central New Jersey homes that heat all winter and cool all summer, that contained process protects your indoor air while the attic is cleared.
These capabilities define the insulation type:
Ready for the conditions: A full removal may call for specialized vacuums, protective gear, and treatment products to handle damp or contaminated material safely.
Protects your air: Aging insulation releases fine particles when disturbed, so containment and protective gear matter for everyone in the home.
the Mercer & Middlesex area's Easy 5-Step
Insulation Removal Process
Free Home Efficiency Assessment
Our Koala Insulation efficiency experts review how your home holds heat through New Jersey winters and stays comfortable in humid summers.
- Home & Attic AssessmentWe begin every project with a room-by-room look through your attic and home. The crew notes insulation type and depth, checks for moisture, ice-dam damage, and rodents, and records ventilation, air-sealing opportunities, wiring conditions, and access so the plan fits an older, tighter house.
Koala Difference: We look past a quick glance to find the air leaks, moisture, and wiring conditions common in central New Jersey homes.
- Prep & ContainmentFrom there we ready the work zone, guarding entry points and laying protective runs from the attic hatch to the truck. If the home needs it, we install barriers and negative-air equipment to keep dust and debris away from your finished rooms.
Koala Difference: Deliberate prep keeps the old material contained so no attic dust settles into your home.
- Old Insulation RemovalUsing professional vacuum equipment, our crew draws the aging insulation out section by section, reaching into corners, eaves, and the tight spots older attics are full of. Damaged, settled, or contaminated material travels straight into a sealed collection unit outside.
Koala Difference: Heavy-duty equipment and a careful pace keep dust down and your home comfortable throughout the removal.
- HEPA Detailing & Treatment
With the bulk cleared, we work HEPA-filtered vacuums over the attic floor and framing to collect the fine dust and fragments that slip past larger machines. When pests, droppings, or moisture turned up, we can add a disinfectant or antimicrobial treatment and a deodorizing pass to freshen the space.
Koala Difference: Fine HEPA detailing and focused treatment finish the attic properly, clean rather than simply cleared.
- Cleanup & Compliant Disposal
From there the old insulation is bagged, loaded, and hauled off-site for disposal that follows Mercer and Middlesex Counties and New Jersey environmental rules. Your property is left neat, and the waste is routed to the proper facility instead of your household bin.
Koala Difference: Haul-away comes standard with every project, so cleanup and disposal never fall to you.
Get a Quote
Ready to move forward? Work with an experienced insulation removal team serving the Mercer & Middlesex area. Schedule a free quote with Koala Insulation of Mercer & Middlesex today!
What to Expect
In 5 Easy Steps
In 5 Easy Steps
What to Expect
In 5 Easy Steps
Schedule Your Free Evaluation
Contact your nearest Koala Insulation Location, recognized as the #1 trusted insulation expert nationwide. We will discuss your needs and schedule an appointment to provide a free evaluation.
Home Efficiency Assessment & Estimate
One of our friendly insulation experts will perform a thorough home efficiency assessment. Your insulation expert will then review the assessment findings, the science behind these findings, and why any changes are needed. Lastly, your insulation expert will provide the best option that fits your home efficiency needs and your budget.
Schedule Your Insulation Service
We will schedule your insulation service for the soonest availability that fits your schedule because we understand that your home insulation is a priority!
Installation
Our team of highly skilled insulation technicians will install your premium insulation solution in as little as two hours. We treat your home like our own and take time to leave it cleaner than it was before.
Post Installation Inspection
Contact your nearest Koala Insulation Location, recognized as the #1 trusted insulation expert nationwide. We will discuss your needs and schedule an appointment to provide a free evaluation.
Enjoy Your Comfortable & Efficient Home
Enjoy a more efficient home with lower energy bills and improved comfort year-round. Enjoy your improved home stress free knowing that Koala Insulation stands behind their work! Reach out to your Koala Insulation team anytime for support.
Benefits
Enhanced Comfort
Energy Savings
Quality Materials
Eco-Friendly Options
Enhanced Comfort
Stay cozy inside, no matter the weather outside.
Energy Savings
Save on your energy bills while keeping your home comfy all year.
Reduced Noise
We use top-quality insulation to give you lasting results.
Eco Friendly
Choose insulation that’s better for your home and the planet, such as solar-powered attic fans.
Your Satisfaction is
What Central New Jersey Homeowners Say
Do not just take our word for it. Hear from neighbors across Mercer and Middlesex about working with our insulation crew.
NobleOne
15:38 02 Sep 26
Koala Insulation did an amazing job from start to finish with foam insulation in my attic and garage. The entire team was professional, knowledgeable, and incredibly hardworking. They arrived on time, explained the process clearly, and completed the work with great attention to detail. The workers were courteous, efficient, and left everything clean when they finished. You can tell they take pride in their work and truly care about customer satisfaction. I highly recommend Koala Insulation to anyone looking for high-quality insulation services. Thank you for a fantastic experience!
Gorki De Los Santos
22:14 28 Jul 26
I had a great experience with Koala Insulation. They helped me from beginning to end to qualify for PSEG program. The team was very professional, they were receptive to all of my feedback and ensure I was satisfied with the work. I highly recommend them for any of your insulation needs.
Sanyam Dixit
02:03 14 Jul 26
Tyler and Raul did an exceptional job insulating our attic. From the moment they arrived, they were professional, courteous, and incredibly hardworking. Tyler walked me through the entire process, explained everything in detail, and kept me updated with photos throughout the job so I could see exactly what was being done. Their attention to detail and commitment to doing the work the right way gave me complete confidence that the job was in good hands.
What impressed me the most was the pride they took in their work. Not only was the attic insulated perfectly, but they also cleaned up exceptionally well—far beyond just the work area. They left most of the house spotless, which I truly appreciated. Tyler and Raul make a fantastic team, and their honesty, professionalism, and dedication to customer satisfaction really set them apart. I highly recommend them to anyone looking for attic insulation done right.
What impressed me the most was the pride they took in their work. Not only was the attic insulated perfectly, but they also cleaned up exceptionally well—far beyond just the work area. They left most of the house spotless, which I truly appreciated. Tyler and Raul make a fantastic team, and their honesty, professionalism, and dedication to customer satisfaction really set them apart. I highly recommend them to anyone looking for attic insulation done right.
Ken Harewood
18:22 17 Jun 26
From the first phone call, the folks at Koala were very courteous and accommodating. I explained that my project was on a very tight timeline, and the scheduler and estimator worked with me to get it done. As for the technicians, Tyler and Raul, they were friendly and knowledgeable. Even though the process wasn't messy, they vacuumed the entire area where they worked.
Neal K
19:03 16 Jun 26
Tom, Anthony, and the install crew did an excellent job explaining everything and answering all my questions. Installation for the attic fan, air sealing, insulation, and hatch cover was quick and professional. These guys are highly rated for a reason. This is the only insulation company I will use moving forward. I highly recommend Koala insulation.
MICHELE LANKO
00:01 05 Jun 26
I needed the job done asap and they were here the very next day! They were professional and did an amazing job for a reasonable price! Highly recommend
Amy Oshel
18:32 20 Apr 26
Anthony and crew where awesome 👏! We had them out to seal, add more insulation & install an attic fan. Anthony explained everything to me in detail. The crew were very neat and professional & the attic looks great! Hopefully it will translate to a much more comfortable upstairs. Thank you 🙏🏼 Kaola !!!
Alexander Smondyrev
14:58 07 Apr 26
Koala insulated exterior walls in a kitchen and ceiling in the kitchen addition. It was done on time at a very reasonable price. The process was well explained. Work space was well cleaned after work and wall patched well. I really like the result. I would use this company in the future. The crew was very nice 👍
JOSEPH BOYLE
22:23 26 Feb 26
These guys are fantastic. I needed my crawl space and attic insulated badly in my 1940s home. They gave a very detailed estimate with lots of photos, talked through concerns, etc. My service was scheduled during a blizzard, and the crew went above and beyond to make it as easy as humanly possible to get my house up to code. They did spray foam + plastic in the crawl, full air sealing and blown in in the attic. Great experience. Tyler and Anthony communicated promptly every step of the way.
Bruce Calvert
23:25 30 Dec 25
I am extremely hard to please when it comes to construction. Some would call me very demanding.
I was thrilled with the job that the team of four people did at my home today - the foreman, Anthony, to Pete, who sprayed the foam while Raul and Tyler how blew cellulose into the attack. They worked their tails off for eight hours, never stopping for a rest. I was super impressed. Not only did they do good work, but it was obvious that they wanted me be completely satisfied, And they succeeded. Everything was taped off perfectly, so that there was no overspray. It was all done, they cleaned the entire space as though their life depended on it.
I thought the cost of the job was very fair given all they had to do and the way they did it.
I wholeheartedly recommend them.
I was thrilled with the job that the team of four people did at my home today - the foreman, Anthony, to Pete, who sprayed the foam while Raul and Tyler how blew cellulose into the attack. They worked their tails off for eight hours, never stopping for a rest. I was super impressed. Not only did they do good work, but it was obvious that they wanted me be completely satisfied, And they succeeded. Everything was taped off perfectly, so that there was no overspray. It was all done, they cleaned the entire space as though their life depended on it.
I thought the cost of the job was very fair given all they had to do and the way they did it.
I wholeheartedly recommend them.
John Salesi
20:19 03 Dec 25
Great work by a local company. From estimate to final work performed, the staff were great and the job was handled to my satisfaction. I highly recommend Koala if you need your house insulated
Tim Segada
19:24 30 Sep 25
This is a first class outfit. Always polite and on time. I had a small crawl space to insulate and needed R30 so foam was my only real option. Not the best of working conditions since the space was a little tight but the guys got it done just as well. If you need insulation work done I highly recommend them.
Why
Choose Koala?
Locally owned, nationally supported: A central New Jersey team following a proven process, backed by Koala locations across the United States and Canada.
Certified, capable crews: Trained installers outfitted with commercial equipment for careful, efficient removals.
Careful, safety-led work: We stick to defined safety protocols, including negative-pressure containment and proper re-entry timing, throughout the project.
Incentive support: We help you identify available utility and local or state energy-efficiency rebates that may reduce what you pay.
Get a Quote
Ready to move forward? Work with an experienced insulation removal team serving the Mercer & Middlesex area. Schedule a free quote with Koala Insulation of Mercer & Middlesex today!
Frequently Asked Questions
Insulation
Removal FAQs
Get all your questions answered by our local experts. If we didn’t address your question here, give us a call at (609) 207-2022 or schedule a free quote today!
My home is older, will removal disturb the knob-and-tube wiring?
We plan around it. Many older Princeton and Trenton homes still have knob-and-tube wiring, so we note it during the inspection and work carefully with exterior-staged vacuum equipment that keeps dust contained. If insulation has to be cleared for an electrical upgrade, removal gives your electrician safe access. When we find wiring that needs attention first, we flag it before continuing so the job stays safe.
Can I just top off my old insulation instead of removing it?
If your attic insulation is dry, clean, and undamaged, adding more on top can help you reach the R-60 level recommended for New Jersey’s climate. Removal makes more sense when material is matted, moldy, rodent-contaminated, or damp from ice dams, since covering compromised insulation locks the problem in. A quick assessment tells you which approach fits your home and your budget.
How much does insulation removal cost in the area?
Because every attic is different, we quote after a free on-site assessment rather than a fixed price. Cost tracks with the size and access of your attic, the type and depth of insulation, any moisture, mold, or rodent contamination, and disposal. Older homes can add wrinkles like tight access or wiring to work around, so an in-person look is the only reliable way to price your project.
Insulation Education
Learn why insulation is critical to your home’s energy efficiency and your family’s comfort.
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Get a quote
Ready to start your insulation project? Get a free quote from your local Koala Insulation team today.
