Slows Heat Transfer: A deep blown-in layer resists conduction through your ceilings and walls, so indoor temperatures in Nashville stay steadier through winter cold snaps.
Reliable Blown-In Insulation in Nashville, TN
Let Our Insulation Experts Show You The Many Benefits Of Our High Performance Insulation.
If your Nashville home never seems to hold a comfortable temperature, thin attic insulation is often the culprit. Blown-in insulation, sometimes called loose-fill, is installed with a hose system that distributes a deep, even layer across your attic floor in just a few hours.
It works beautifully over existing insulation, in new spaces, and in hard-to-reach cavities, and Koala Insulation of Nashville is ready to help.
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Trusted
Blown-In Insulation Contractors in Nashville
Nashville’s hot, sticky summers and cold winter snaps can make your home feel uncomfortable and your HVAC system work overtime. Even so, many attics in the area are underinsulated, with only a few inches of coverage where modern guidelines call for far more.
Best uses for blown-in insulation:
Attic floors to quickly boost your R-value to modern standards.
Wall cavities in some retrofit situations, following industry best practices.
Knee walls & sloped ceilings for those hard-to-reach areas.
A Superior
Whole-Home Thermal Upgrade
Blown-in insulation offers Nashville homeowners and businesses a powerful way to upgrade comfort and efficiency. Loose-fill products create a continuous thermal blanket over your attic floor or inside cavities, working like traditional insulation while delivering fast, even coverage over new or existing material.
These capabilities define the insulation type:
Cuts Air Leakage: Paired with our targeted air sealing, a blown-in blanket helps close off the small pathways around framing, wiring, and plumbing where conditioned air leaks out of your Nashville home and outdoor air sneaks in.
Stops Moisture: By improving overall attic R-value and supporting proper ventilation, blown-in insulation helps reduce the condensation and moisture movement that contribute to heat loss in homes in Nashville.
Advantages Of
Blown-In Attic Insulation in Nashville
There is a reason blown-in leads the list for attic upgrades in Nashville: it is quick to install, plays well with existing insulation, and helps deliver lower heating and cooling bills plus all-season comfort. More key advantages:
Improved Air Quality
When combined with attic air sealing, blown-in insulation helps cut down the amount of dust and outdoor pollutants that can sneak in through gaps around light fixtures, plumbing penetrations, and attic access points in homes in Nashville.
Water & Fire Resistance
Fire safety is built into how we work in Nashville. The blown-in materials we use are engineered with fire performance in mind, and our installers maintain the required clearances around recessed lights, flues, and chimneys per local codes and manufacturer guidelines.
Pest and Wildlife Protection
If pests are a concern in Nashville, ask us about cellulose: it is the only blown-in insulation that includes pest-resistant additives. Combined with air sealing that closes off entry points, it supports a cleaner, better-protected attic.
Soundproofing
A thick layer of loose-fill insulation helps absorb sound from outside, and even between levels of your home. If you have noisy neighbors, a busy road, or kids’ rooms over the main living space, blown-in insulation helps soften that noise and create a quieter indoor environment in Nashville.
Environmentally Friendly
Choosing blown-in is an environmentally friendly move for Nashville 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.
Our Proven 4-Step
Blown-In Insulation Process
Free Insulation Assessment
The Koala Insulation efficiency experts will perform a thorough examination of the current efficiency of your Nashville home.
- Prep for Safe InstallationEvery blown-in insulation project in Nashville starts with careful preparation. We protect floors and walkways, set up safe access to the attic, and install rulers or depth markers so we can confirm the final insulation level across the entire space. If needed, we will install baffles at the eaves to maintain ventilation and keep insulation from blocking soffit vents.
Koala Difference: Protecting your Nashville home up front means better insulation performance later, and no post-project cleanup left on your plate.
- Seal the Leaks FirstNext, we hunt down air leaks. Using thermography leak detection, our crew locates and seals the gaps around plumbing stacks, wiring, recessed lighting, and attic hatches that quietly drain efficiency from homes in Nashville.
Koala Difference: Pairing air sealing with the blow-in is how we turn a good upgrade into a great one for your Nashville home.
- Install to the Target DepthOur crew blows insulation evenly across the attic floor, building to the specified R-value while working material into corners and around obstructions. Depth markers are checked continuously so the finished blanket is consistent from eave to eave in Nashville.
Koala Difference: We measure as we go because even small “thin spots” can undercut the comfort Nashville homeowners are paying for.
- Wrap Up & Review
Once the target depth is confirmed, we vacuum the work area, pack out all equipment, and verify the attic access is sealed tight. Then we walk you through the project at your Nashville home, share before-and-after photos when available, and answer any questions about your new insulation.
Koala Difference: Even after the trucks leave Nashville, we are a phone call away for questions and for help claiming any rebates or tax credits your project qualifies for.
Get a Quote
Your comfort upgrade starts with one visit. Schedule your free assessment with Koala Insulation of Nashville, the blown-in insulation team Nashville homeowners trust!
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
The best proof is a happy customer. See what clients in Nashville have to say about working with our insulation pros.
Sarah Campbell Drury
20:58 25 Jun 26
My hat is off to BJ at Koala Insulation. Koala did some work on our basement. We had an issue with one aspect of the work and BJ personally came out and went above and beyond to make sure all was made right. We would definitely use them again.
Greg Paulson
13:22 16 Jun 26
Closed-cell spray foam and fire-retardant painting for a portion of a barn.
It's often noted that when and how a business successfully resolves issues for a service actually improves customer satisfaction verses if the work was done with no issues at all. Such was my experience. Two issues happened, one of my making and one of Koala's. Both were resolved professionally and with a high degree of integrity.
In terms of the actual work performed, both the spray foam and painting was done very well. Cleanup was excellent. Will recommend to others.
It's often noted that when and how a business successfully resolves issues for a service actually improves customer satisfaction verses if the work was done with no issues at all. Such was my experience. Two issues happened, one of my making and one of Koala's. Both were resolved professionally and with a high degree of integrity.
In terms of the actual work performed, both the spray foam and painting was done very well. Cleanup was excellent. Will recommend to others.
Dave Brinkman
13:35 08 Apr 26
Great job by Koala insulation. Price was very fair and the work done was professional. Jared in particular deserves a huge shout out for a job well done. I’d recommend them.
Hal Balthrop
02:30 19 Mar 26
The experience with Koala was great! Bryant and Jeremy were very professional, thorough and thoughtful in their service. The preliminary site vote, quick turnaround detailed quote (very reasonable) and subsequent timely installation could not have been better. They were very sensitive in protecting the integrity of interior areas adjacent to project site and left treated area very clean when complete. I highly recommend this company and plan on working with them again to sprsy foam more areas as our remodel continues.
R Wood
23:29 17 Mar 26
Koala removed our old attic insulation and replaced it with R-49 blown in insulation. They were very conscientious and professional in the way they performed their work and cleaned up well when they were done. Our sensitive air filters never kicked in because John and the crew kept the dust isolated to the attic. When they found electrical wires that had been chewed by mice, resulting in exposed copper wire, they waited for me to bring in an electrician to repair the wires and still completed the job in one day. Overall, Koala did a wonderful job for us and we highly recommend them.
Anthony Gay
01:13 11 Mar 26
Great communication and thorough job. Very happy with work done for my upgraded insulation, solar powered attic fan, and fiberglass blanket insulation. I also feel like I paid a fair amount and wasn't overcharged. Quality work and quality people. Def recommend.
Stephen P. Ray
13:55 02 Feb 26
I hired Koala to remove all the drop in insulation in the attic of my 1968 home and they did an amazing job! Their communication was great, and once their team got to work on the job, they had it fully finished and cleaned up within 2 days. I am excited to be working with Koala again in the near future for spray in insulation and crawl space mitigation.
The Land
00:52 07 Jan 26
I booked a very specific date a few months ago and Jared and the team committed to that date, understood the importance of the winter break schedule. My job was unique and had some challenges, but their communication was fantastic. The guys showed up on time and the job was done in a timely manner and they cleaned up perfectly afterwards. I was also really pleasantly surprised by the finished look! Insulation has come a long way. The crew were very respectful and polite. 1000% recommend 🌟🌟🌟🌟🌟
Mark A. DeMaio
17:44 22 Dec 25
Jon was excellent, and did a perfect job. Courteous, Professional, showed up on time and cleaned up after. Added to the fact I was pleased to know he is a Military Veteran, serving our Country in the US Army. We like to know we’re hiring Contractors that employ our Veterans.
Koala Insulation had the best price around and pleased w/the completion of the job they did today. I’d recommend them!
Koala Insulation had the best price around and pleased w/the completion of the job they did today. I’d recommend them!
Louise Merritt
21:24 04 Dec 25
Jon & his team are very friendly, professional, & invested in performing the best job possible. They cleaned up after themselves after blowing in fiberglass to bring me up to a R49 value. While installing batting in my crawlspace they identified an issue which needs repair & remediation & put me in contact with a remediation company. Top notch all the way around!
C S
00:57 19 Nov 25
So easy! I had Bryant come out and give me a quote. He was very personable and honest. Got lucky to get installation done quickly and efficiently. Jon and Uzman (spell?) were my installers. Very kind and clean! Victoria has been helping me with all the rebates and paperwork to be done! Very professional and friendly! Have already recommended Koala to two people! Excellent work!
Sharon Clancy
21:24 01 Jul 25
The whole process from getting a estimate to coming and doing the work was great. They were very friendly and professional and knowledgeable about my issue I was having. The crew that came and performed the work were very friendly . They provided me pictures of they completed work. I would definitely recommend this company.
Alex J. Hughes
16:25 20 Jun 25
Jared and Jon were amazing to work with. Fair prices, honest work. Went above and beyond to help us with our attic and crawl space. Highly recommend.
Wendy Wyatt
18:07 08 Jun 25
We are very pleased with every aspect of our service from Koala Insulation. Jared came out and inspected our attic, we thought we may have water damage due to roof damage from the recent storms, but he advised we did not. He was very professional, friendly & on time. We greatly appreciate his honesty!!!
We asked for quote to upgrade our insulation. Jared provided the quote & advised that TVA currently has rebates so the cost is basically half price during this time. We scheduled the date for the upgrade insulation and air sealing to be done.
Jon G. arrived right on time for the installation. He was also very professional, friendly & did a great job of cleaning up afterwards. He provided us with pictures of the work that was completed. He also went back over the TVA rebate program & how it works.
The temperature has been much higher the past week and we can tell a big difference in the house already. We are extremely happy with Koala Insulation!
We asked for quote to upgrade our insulation. Jared provided the quote & advised that TVA currently has rebates so the cost is basically half price during this time. We scheduled the date for the upgrade insulation and air sealing to be done.
Jon G. arrived right on time for the installation. He was also very professional, friendly & did a great job of cleaning up afterwards. He provided us with pictures of the work that was completed. He also went back over the TVA rebate program & how it works.
The temperature has been much higher the past week and we can tell a big difference in the house already. We are extremely happy with Koala Insulation!
G Z
17:54 04 Jun 25
Jared and his team perform exceptional work, dedicating themselves to a job well done. You don't see that type of work ethic often these days, especially in areas experiencing rapid growth with cheap labor and workers who hastily complete jobs. We're so glad we went with Koala Insulation of Nashville for our crawlspace encapsulation and attic insulation needs. Extremely reasonably priced services in comparison to competitors in this area. We recommend this team without any reservations.
Andrew white
18:51 21 May 25
These guys are fantastic and did a great job for us with our attic insulation! The spray foam has already made a significant improvement to our comfort and keeping the HVAC from constantly running. Looking forward to seeing our utility savings this summer! Thanks Brandon and the entire Koala team for an awesome experience!
Brian Macari
21:26 28 Mar 25
BJ and John arrived exactly on time and ready to work. They were obviously experts and actually also found some defects in my HVAC ducts which they took pics of and pointed out so I could get them taken care of later. They installed a ducted dehumidifier in my crawl space and it is a beauty! I sincerely appreciate their work and would absolutely recommend Koala to anyone.
Tom Neligan
01:09 04 Jan 25
Jerre Richards
22:26 03 Jan 25
Zach did a great job today. And Jared has been great to work with as well. This is the 3rd time we’ve used these folks as we’ve added 2 additions to our home and every time they have been wonderful to work with. They communicate with you throughout the entire process, show up when they were scheduled, prepped the work area to avoid creating a mess, worked efficiently to accomplish the job and cleaned up their work area upon completion.
I can’t say enough about the quality of their work, the friendliness of their people and their professionalism throughout the entire process. Great job guys! Thanks for taking good care of us!
I can’t say enough about the quality of their work, the friendliness of their people and their professionalism throughout the entire process. Great job guys! Thanks for taking good care of us!
Melody Weist
22:20 30 Dec 24
I received such great service during my first job of attic insulation, I once again hired Koala Insulation to insulation the garage. Once again, I was impressed by the quality of service received from Victor and Gabriel. Arrive on time, worked diligently, and left the area as clean as when they arrived. This company deserves your consideration for any and all insulation needs.
Tony Cherry
21:51 26 Dec 24
Jon was great, very communicative and understanding of my personal time.
JJ Rosen
18:33 26 Dec 24
Great company! Super nice people, great expertise, and honest. Suggested ways to save money on our insulation project and fast response time. Highly recommend!
Kenny Lakits
18:05 23 Dec 24
What a pleasure to deal with this company. Bryant showed up on time and explained all options and pricing. Jon and his helper communicated arrival and was here on time as well. Had R49 blown in, great job and place was left spotless.. Jon is a great guy and truly cares about the work he is providing. I will definitely use this company in the future for add ons to our home. A+
Susan Martino
22:11 10 Dec 24
Thanks Koala Insulation of Nashville for the excellent job performed today. Cody and Braxton arrived right on time and wasted no time getting set up for the job. Didn’t take long to complete the work and made sure to clean up after they were done. Then Cody had photos to share of the work completed. I would highly recommend this company for insulation work!
Tyler Smith
01:07 12 Nov 24
BJ Hardy and his crew did an amazing job removing our old, very old insulation and installing new spray foam in the attic. They were very communicative the whole way and it was like they were never in the house! Great work and professional!!!
Mark Autry
21:30 21 Oct 24
Koala Insulation of Nashville came out to remove our old insulation and replaced it with new blown-in fiberglass. The crew; Cody, Jackson, Zach, and Ronnie were very professional and friendly. They explained everything they were doing, problem solved and communicated well with us, and overall did and excellent job. They removed old plywood, air sealed, and installed an attic fan in addition to the blow in. Our attic is night and day from the old, sunk down insulation to the now new fiberglass at R-38. We look forward to having a more comfortable feeling home and for our heat/AC unit to work less. Thank you Koala Insulation!
Dena Lanfrankie
12:10 17 Sep 24
Below is the email I sent to the company:
"I am extremely unhappy with your services.
I had to pick up dozens of screws from where the ceiling was removed off of my floor.
A piece of the ceiling was left up.
The lights were not put back up and most were left on my counter tops.
One of the lights were left outside and was rained on overnight making is unusable.
Antother was light was broken, with glass in my sink.
Not all of the blown in insulation was removed.
The foam insulation was not sprayed in the overhang area as was quoted to me by the salesman.
(Photos attached for reference.)
This is my home, the place where I live and sleep. I have never, ever had my home left such a mess after having work done. It is excedingly distrespectful!
I now have to hire someone to come hang the new lights that I have to purchased to replace the damaged ones."
Then when the electrician came out he discovered that there was a live wire hanging over my bed where they took that light down.
I reached out to Koala via email. JD called me and I was at work and I explained that the best way to reach me was via email. I have not heard from anyone at the company since.
"I am extremely unhappy with your services.
I had to pick up dozens of screws from where the ceiling was removed off of my floor.
A piece of the ceiling was left up.
The lights were not put back up and most were left on my counter tops.
One of the lights were left outside and was rained on overnight making is unusable.
Antother was light was broken, with glass in my sink.
Not all of the blown in insulation was removed.
The foam insulation was not sprayed in the overhang area as was quoted to me by the salesman.
(Photos attached for reference.)
This is my home, the place where I live and sleep. I have never, ever had my home left such a mess after having work done. It is excedingly distrespectful!
I now have to hire someone to come hang the new lights that I have to purchased to replace the damaged ones."
Then when the electrician came out he discovered that there was a live wire hanging over my bed where they took that light down.
I reached out to Koala via email. JD called me and I was at work and I explained that the best way to reach me was via email. I have not heard from anyone at the company since.
Why Homeowners
Choose Koala
Consistent from coast to coast: A U.S. & Canada network with one standard of workmanship, delivered locally in Nashville.
Assessment before estimate: Every quote follows a free efficiency evaluation of your Nashville home.
Sealed, then insulated: Thermography-guided air sealing comes standard in how we scope attic projects.
Post-project support: Rebate and tax credit guidance plus a team that answers the phone after the job is done.
Get a Quote
Your comfort upgrade starts with one visit. Schedule your free assessment with Koala Insulation of Nashville, the blown-in insulation team Nashville homeowners trust!
Frequently Asked Questions
Blown-In Insulation Questions
Get all your questions answered by our local experts. If we didn’t address your question here, give us a call at (615) 747-2960 or schedule a free quote today!
How Much Is Blown-In Attic Insulation in Nashville?
There is no one-size-fits-all price for blown-in insulation, because no two attics are alike.
Three things drive the number: how large the home and attic are, which insulation material is used, and how much work the installation itself involves, including access, prep, air sealing, and whether old insulation needs to come out first.
And because a well-covered attic cuts heat loss, the project starts working to lower your energy bills from day one.
It is also worth knowing that many state and local governments, along with utility companies, offer rebates that can help defray part of the cost. No two attics in Nashville are the same, so the honest answer comes from a free assessment. Contact the team today to schedule yours.
Blown-In Insulation vs. Rolls: Which Is Better?
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 Nashville home.
How Much Blown-In Insulation Do I Need?
How much blown-in insulation you need depends on the size of the space, the insulation depth required, and your geographic location (see the map below). Climate plays a major role in determining the recommended R-value for an attic, with colder regions requiring thicker insulation to reduce heat loss and warmer regions needing enough insulation to block heat gain. The square footage of the attic and the target R-value together determine how much material is required to achieve consistent coverage. For reference, Nashville falls in IECC Climate Zone 4A (mixed-humid), and DOE and ENERGY STAR guidance for that zone puts attic insulation at roughly R-38 to R-60.
That is why professional installers do not eyeball it: material calculations follow climate-zone guidelines, current insulation levels, and manufacturer coverage charts. Done right, the depth matches the recommended R-value for your area, allows for natural settling, and leaves no thin spots to drag down performance. The diagram below shows how recommended attic insulation levels change by geographic region, helping homeowners understand why insulation needs differ from one location to another.
Insulation Education
Learn why insulation is critical to your home’s energy efficiency and your family’s comfort.
Learn More
Get a quote
Ready to start your insulation project? Get a free quote from your local Koala Insulation team today.
