Blocks Conductive Heat Loss: By thickening the barrier between living space and attic, blown-in insulation slows the heat that would otherwise pass through the ceilings and walls of your Newark home as outdoor conditions swing.
Trusted Blown-In Insulation Services in Newark, DE
Let Our Insulation Experts Show You The Many Benefits Of Our High Performance Insulation.
Looking for a proven way to make your Newark home more efficient without a major renovation? Blown-in (loose-fill) insulation installs quickly: our crew uses a hose system to blanket your attic floor or fill wall cavities with a thick, uniform layer of insulation.
It is ideal for topping off settled insulation, finishing new spaces, and taming drafty older homes, and Koala Insulation of Newark can help with all three.
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Trusted
Blown-In Insulation Contractors Serving Newark
Newark’s muggy Delaware summers and cold, damp winters can make your home feel uncomfortable and your HVAC system work overtime. The surprising part? A large share of homes here still rely on a thin, decades-old layer of attic insulation that falls well below current recommendations.
Where blown-in insulation shines:
Attic floors that need a fast, affordable R-value boost.
Wall cavities in some retrofit situations, following industry best practices.
Knee walls & sloped ceilings for those hard-to-reach areas.
A Superior
The Thermal Blanket Effect
Blown-in insulation gives Newark homeowners and businesses an efficient shortcut to a more comfortable building. Because the material is blown in loose, it fills low spots and gaps that rigid products leave behind, forming one continuous layer of protection over new or existing insulation.
These capabilities define the insulation type:
Blocks Air Infiltration: When combined with Koala’s targeted air sealing, blown-in insulation helps reduce drafts by limiting the pathways where treated air can escape and outside air can sneak in around framing, wiring, and other penetrations common to homes in Newark.
Helps Control Moisture: By raising attic R-value while keeping soffit airflow open, blown-in insulation helps curb the condensation cycles that sap efficiency in Newark.
Advantages Of
Blown-In Attic Insulation in Newark
Between damp winter cold and seasonal swings, homes in Newark work hard to stay comfortable. Blown-in insulation helps by installing quickly, topping off existing layers, and supporting lower energy costs with year-round comfort. Additional advantages include:
Improved Air Quality
Sealed and insulated attics leak less, which means less dust and fewer outdoor pollutants pulled into your Newark home through can lights, plumbing penetrations, and access panels.
Water & Fire Resistance
From material choice to installation detail, fire safety guides the work. We install products designed with fire resistance in mind and maintain code-required clearances around recessed lights, flues, and chimneys so your Newark home stays protected.
Pest and Wildlife Protection
Worried about unwanted attic guests? Cellulose is the one blown-in material treated with pest-deterrent additives, and pairing it with thorough air sealing helps keep insects and critters out of attics in Newark.
Soundproofing
Insulation quiets as it insulates. A deep blown-in blanket absorbs sound traveling in from outside and between floors, so traffic, neighbors, and upstairs footsteps all fade into the background of your Newark home.
Environmentally Friendly
Choosing blown-in is an environmentally friendly move for Newark homeowners. The material itself is manufactured from recycled content, and by trimming the energy needed to heat and cool your home (studies cite reductions of up to 40%), it shrinks your carbon footprint season after season.
Newark’s Easy 4-Step
Blown-In Insulation Process
Free Insulation Evaluation
Our efficiency experts start with a thorough, no-cost examination of how your Newark home is performing today.
- Protect & Prep the SpaceGood installs begin before the blower starts. Our crew protects your floors and walkways, sets up safe attic access, and places depth markers throughout the space so the finished level can be verified corner to corner. Where homes in Newark need them, we add baffles at the eaves so soffit ventilation stays open.
Koala Difference: The payoff: insulation that performs as designed, and your Newark home left exactly as clean as we found it.
- Seal the Leaks FirstBefore blowing in insulation, our team addresses the air leaks common to homes in Newark: plumbing penetrations, wiring, recessed lights, attic access points, and other leaks detected by our thermography leak detection system.
Koala Difference: The difference is durability: air sealing plus insulation delivers comfort in Newark that a fluff-only job simply cannot match.
- Blow In the InsulationNow the insulation goes in. Our installers work methodically across the attic, blowing material to the specified depth and R-value, feathering it into corners and tight spots, and checking depth markers until coverage is uniform across your Newark home.
Koala Difference: We measure as we go because even small “thin spots” can undercut the comfort Newark homeowners are paying for.
- Wrap Up & Review
Cleanup is part of the job, not an afterthought in Newark. We vacuum and tidy the space, remove every piece of equipment, confirm the attic access seals properly, then review the results with you, photos included when available.
Koala Difference: Our job does not end when the blower shuts off. Koala Insulation of Newark is here for future questions, and to help you take advantage of any available rebates or tax credits.
Get a Quote
Let’s make your Newark home the most comfortable house on the block. Book a free quote with Koala Insulation of Newark 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
Our Top Priority
But do not take it from us: hear what clients in Newark say about their experience with our insulation team.
Amjed Hallak
15:13 25 Jul 26
We had Koala come out to foam our rim joists, seal known air leaks, foam our attic side knee walls, and bring our attic insulation up to code with blown-in fiberglass and dense packing under crawlboards. The work was solid from the start, and they cleaned up thoroughly after every visit.
Over a year later, a third-party energy audit flagged a few spots that had been missed. I reached out to Koala, and they came out promptly, addressed every issue, and documented the fixes with photos. They were completely receptive to my observations and didn’t push back at all.
What really stood out was working with the new owner, Richard. He had a great attitude, treated both me and his team with respect, and clearly cared about getting it right. Richard was right there in the tight, hard-to-reach spaces himself doing the physical labor alongside his crew, not just overseeing. He even ran another blower door test afterward so we could walk through the house and confirm the deficiencies were actually resolved with comparative thermal imaging.
It’s rare to find an owner this hands-on and a contractor who stands behind their work this well, long after the original job was done. Great experience overall.
Over a year later, a third-party energy audit flagged a few spots that had been missed. I reached out to Koala, and they came out promptly, addressed every issue, and documented the fixes with photos. They were completely receptive to my observations and didn’t push back at all.
What really stood out was working with the new owner, Richard. He had a great attitude, treated both me and his team with respect, and clearly cared about getting it right. Richard was right there in the tight, hard-to-reach spaces himself doing the physical labor alongside his crew, not just overseeing. He even ran another blower door test afterward so we could walk through the house and confirm the deficiencies were actually resolved with comparative thermal imaging.
It’s rare to find an owner this hands-on and a contractor who stands behind their work this well, long after the original job was done. Great experience overall.
Joseph Raziano
18:20 05 Jan 26
Don’t bother calling anyone else for your insulation needs. After going through a long list of unreliable contractors, I can honestly say that Matt and the team at Koala Insulation of Newark are the only ones who truly have their act together. Dealing with other companies was a total nightmare, but this experience was the exact opposite.
I have a 150-year-old house, which presents a lot of unique challenges. Even after the job was finished and paid for, we found a small spot that had been missed because it was obstructed by old materials.
Unlike many contractors who disappear once they have your money, Matt came back out immediately to fix it without any argument or additional charge.
It is rare to find that level of integrity today. The “after-care” is what really matters, and Koala Insulation stands behind their work 100%. If you want the job done right by people who actually care about their reputation, these are the guys to use.
I have a 150-year-old house, which presents a lot of unique challenges. Even after the job was finished and paid for, we found a small spot that had been missed because it was obstructed by old materials.
Unlike many contractors who disappear once they have your money, Matt came back out immediately to fix it without any argument or additional charge.
It is rare to find that level of integrity today. The “after-care” is what really matters, and Koala Insulation stands behind their work 100%. If you want the job done right by people who actually care about their reputation, these are the guys to use.
Bryan Cochran
12:07 07 Nov 25
Koala worked me into their schedule at short notice. Their work was professional with great follow up. Everything was left neat and tidy in my attic and crawlspace. I noticed an immediate improvement in the comfort of my house. They also handled all the Energize Delaware rebate paperwork.
Bob Wick
14:16 16 Oct 25
Koala Insulation of Newark DE are true professionals. Their experience with insulating an older home is second to none. We had them extract all of the old insulation & installed new throughout the attic space in our daughters home. Owner / operator that has a passion for his business explained what was needed. His Koala insulation team was on time, professional, and experienced with residential air sealing & insulation. 100% will use Koala with future homes
Chelsea Boylan
16:55 29 Aug 25
Matt and his team were wonderful to work with. I got insulation for my attic and in the knee walls in my Cape Cod style home. They kept me well informed through the whole job, we’re very professional, and worked with me in my schedule. Highly recommend!
Kailyn Buckley
00:04 26 Nov 24
Koala insulation was excellent! They were very knowledgeable and helpful in helping us determine what we needed to do to maximize our efficiency in our home as well as deter pests. They were friendly, punctual, and thorough! Would recommend to others and would use again!
Stephanie Stubblefield
18:46 13 Nov 24
Contacted Koala insulation of Newark for an estimate. Ed came out for an estimate of our insulation needs. He walked through our home with my husband and I. He asked a few very technical questions that I don’t believe basic homeowners would know. Like “are your rim joists insulated?” I advised him that I wasn’t sure what he was talking about. His responses to our basic questions were condescending and what my husband and I both felt like we were being “mansplained” about many questions. While I understand that this is the world he lives in and understands, it was clearly not terminology we understood. The estimate was odd and I walked away several times to give myself a break from his presence. The partner he brought with him was the opposite and very kind but I can’t recall the partners name. We very clearly presented to Ed that we would like our estimate to be broken down so we could select which items we wanted to tackle. We also shared with him that we would be having our bathroom above replaced and would likely do this part of the job separate to avoid and issues with the spray foam being ripped out.
We received the estimate a week later. Although, we weren’t happy with Ed’s demeanor we did feel comfortable with what he was proposing to do. The estimate came as an electronic estimate that only allowed me to select the entire 5k job or decline. I contacted Ed and stated the pieces we were agreeing to complete. Approximately 00 worth of work. I got a response stating he would send a new estimate with only the items we wanted to take on at this moment. When the new estimate arrived we noticed the estimate was 15% higher than the last quote. I inquired why this was. I was advised that Ed had added a “trip fee.” He claims this fee was bundled in to the other job we didn’t choose to do. Sounds shady, right? So I text him and shared that we did not find it fair to be charged 0 more when this charge was never technically in the first estimate. His response “I understand.” I advised that we were prepared to move forward with the job without the trip fee. About a day later I received a text stating that he couldn’t have added the trip fee to the other estimate. Although everything else in the first estimate was broken down line by line…even the 1 inch foam board and plastic they needed to use. So he absolutely could’ve included that fee…if it was actually being charged in the first estimate. He then sent me a picture of a 5 bottle of spray foam with the text that said “here’s an ad for the product.” Never once did I tell this man that I planned to do the job on my own because we have zero plans to do it on our own. Nor did I ask for the product.
For a company with 5 star reviews, I expected significantly better. Ed was not only condescending throughout but the text he sent was just flat out rude. In addition, my home location is 25 minutes from Newark. Why are they charging 0 to travel to a house? It was 18 miles door to door. Do they charge everyone a 0 fee or did Ed just want to inflate the cost of the job? Either way, I don’t spend my money on businesses who practice like this or who hire employees like Ed.
We received the estimate a week later. Although, we weren’t happy with Ed’s demeanor we did feel comfortable with what he was proposing to do. The estimate came as an electronic estimate that only allowed me to select the entire 5k job or decline. I contacted Ed and stated the pieces we were agreeing to complete. Approximately 00 worth of work. I got a response stating he would send a new estimate with only the items we wanted to take on at this moment. When the new estimate arrived we noticed the estimate was 15% higher than the last quote. I inquired why this was. I was advised that Ed had added a “trip fee.” He claims this fee was bundled in to the other job we didn’t choose to do. Sounds shady, right? So I text him and shared that we did not find it fair to be charged 0 more when this charge was never technically in the first estimate. His response “I understand.” I advised that we were prepared to move forward with the job without the trip fee. About a day later I received a text stating that he couldn’t have added the trip fee to the other estimate. Although everything else in the first estimate was broken down line by line…even the 1 inch foam board and plastic they needed to use. So he absolutely could’ve included that fee…if it was actually being charged in the first estimate. He then sent me a picture of a 5 bottle of spray foam with the text that said “here’s an ad for the product.” Never once did I tell this man that I planned to do the job on my own because we have zero plans to do it on our own. Nor did I ask for the product.
For a company with 5 star reviews, I expected significantly better. Ed was not only condescending throughout but the text he sent was just flat out rude. In addition, my home location is 25 minutes from Newark. Why are they charging 0 to travel to a house? It was 18 miles door to door. Do they charge everyone a 0 fee or did Ed just want to inflate the cost of the job? Either way, I don’t spend my money on businesses who practice like this or who hire employees like Ed.
Ryan Potts
20:40 25 Jun 24
They're genuinely exceptional at what they do. Their service and care go beyond expectations. They want to make your home and the greater community a better place which is hard to find.
Phillip Marinelli
23:30 06 Jun 24
Have used them twice now. Great experience both times.
S.J Palumbo
23:06 22 May 24
Matt and his crew did a beautiful job reinsulating and weatherproofing our crawlspace. Timely and affordable.
James Seebacher
18:52 25 Apr 24
We have a 60 year old split level that had little to no insulation, we participated in the Delaware home energy audit program and now we have a well insulated 60 year old split level. The improvements to our energy expenses and comfort have been dramatic. Matt and his team's pricing, professionalism and diligence to their work was fantastic. Can't recommend Koala Insulation enough for your home insulation needs.
V.J. Ciarlo
15:50 15 Mar 24
Koala CARES! I was extremely satisfied with my experience with Koala Insulation of Newark. This team went above and beyond in every aspect of this service. Matt Baxter was extremely helpful and always took the time to explain the process and make me feel comfortable. Matt was looking out for my best interest from the start. He offered options for savings and came out twice during the scope development process to ensure everything would work out great. Matt came out every day of the project as well. He's a first class guy that truly values his customers.
We had a baby on the way when we decided to complete this project. This team supported our needs and schedule! They made it happen and made it happen safely!
Ed deserves a great deal of recognition and thanks. His expertise and general home knowledge was of immense value. He recognized and solved a couple of issues and I couldn't be more thankful!
Stathi also deserves recognition. He did a amazing job removing old and unwanted insulation. He made sure the job was done right!
Reach out to Koala! The air sealing and insulation work they did will save me hundreds a year on heating and cooling.
We had a baby on the way when we decided to complete this project. This team supported our needs and schedule! They made it happen and made it happen safely!
Ed deserves a great deal of recognition and thanks. His expertise and general home knowledge was of immense value. He recognized and solved a couple of issues and I couldn't be more thankful!
Stathi also deserves recognition. He did a amazing job removing old and unwanted insulation. He made sure the job was done right!
Reach out to Koala! The air sealing and insulation work they did will save me hundreds a year on heating and cooling.
Nathan Moy
13:14 02 Feb 24
Awesome company!! Very happy with Koala and the services they provided. The owner Matt was very helpful and explained the process every step of the way. The day of the job his crew arrived on time and was very professional and thorough. We are already noticing the increased comfort in our home and I will be recommending Koala to all of my friends and family.
Alex Zorach
21:22 17 Jan 24
We hired this company to do air sealing and insulation in our home, using a mixture of spray foam and fiberglass in different spaces. I was impressed with the reduction in air loss they were able to get. They exceeded their own estimates even; I am always pleasantly surprised when a company over-delivers, although we may have also just gotten lucky. I found this company very easy to work with: they communicated clearly and gave us a sense of the relative pros and cons of different options, and what would be most cost-effective. Although I was mainly motivated to hire these guys to save money on my heating bill, I also noticed an immediate improvement in comfort after doing their work. The house was less drafty, the basement became particularly warmer, and this in turn made the first floor's floor warmer which made it much more comfortable.
The
Koala Difference
Locally owned, nationally backed: Koala Insulation of Newark is part of a network spanning the U.S. & Canada, pairing hometown service with proven systems.
Free, honest assessments: Recommendations start with a real evaluation of your Newark home, not a one-size-fits-all sales pitch.
Air sealing included in our thinking: Thermography-guided leak sealing means your new insulation performs to its potential.
Rebate and credit guidance: We help you identify tax credits and utility rebates that may apply to your project.
Get a Quote
Let’s make your Newark home the most comfortable house on the block. Book a free quote with Koala Insulation of Newark today!
Frequently Asked Questions
Blown-In Insulation FAQs
Get all your questions answered by our local experts. If we didn’t address your question here, give us a call at (302) 273-8476 or schedule a free quote today!
What Does Blown-In Insulation Cost in Newark?
How much blown-in insulation costs is one of the first questions we hear, and the honest answer is that it depends on your home.
The size of the home matters most, since a larger attic takes more material and time. The type of insulation used plays a role as well, and so does the level of effort the installation requires, from attic access and prep to air sealing and any removal of old insulation.
The good news is that the investment pays you back through steadier comfort and lower heating and cooling costs season after season.
Before you budget, check on incentives: many state and local governments and utility providers offer rebates that help bring the net cost down. The only precise number is one measured on site. Schedule a free assessment and we will price your exact attic in Newark, not an average.
Is Blown-in Insulation Better Than Rolls?
For attic floors, blown-in is usually the stronger choice. A blown layer is continuous, wrapping over joists and around obstructions, while rolls leave the small seams and voids that cause drafts and uneven temperatures. Real-world performance follows coverage, and coverage is exactly what blown-in delivers for your Newark home.
How Much Blown-In Insulation Do I Need?
It depends on the attic’s square footage, the depth required, and your location on the climate map below. Colder climates call for thicker attic insulation to limit heat loss, while warmer climates need sufficient depth to block heat gain, so the recommended R-value varies by region. From there, attic size and target R-value determine the material needed for consistent coverage. On the DOE climate map, Newark falls in Climate Zone 4A (mixed-humid), with ENERGY STAR guidance recommending attic insulation of about R-38 to R-60.
Rather than estimating, professional installers work from climate-zone guidelines, your existing insulation depth, and manufacturer coverage charts. That approach matches depth to the recommended R-value for the region, builds in allowance for settling, and prevents the coverage gaps that undercut performance. Check the diagram below to see how recommended attic levels change across regions, and why the right depth here is not the same as somewhere else.
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.
