Professional Spray Foam Insulation Services in Grand Rapids

Let Our Insulation Experts Show You The Many Benefits Of Our High Performance Insulation.

There’s no substitute for the exceptional energy efficiency improvements offered by spray foam. Grand Rapids homeowners and businesses alike rely on our local expertise and national resources for designing and installing spray foam systems.

As the leading spray foam insulation company in Grand Rapids, Koala Insulation brings professional recommendations and workmanship to every project.

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Trusted
Spray Foam Insulation Contractors in Grand Rapids

Professional insulation services and energy efficiency solutions for residential and commercial properties.

The climate in Grand Rapids presents distinctive challenges, from humid summers to frigid, snowy winters, that can significantly impact the energy efficiency of residential and commercial properties. Koala Insulation of Grand Rapids recognizes the advantages of spray foam insulation as an effective means to address these local environmental demands, especially in critical areas such as attics, crawl spaces, and exterior walls. This high-performance insulation technique is essential for sealing gaps, reducing air leakage, and improving the overall durability and thermal performance of West Michigan households.

The effectiveness of insulation is highly influenced by the quality of the installation process and the expertise of the technicians. Koala Insulation employs a team of skilled professionals dedicated to providing superior installation services that meet stringent industry standards. This commitment to craftsmanship ensures that property owners in Grand Rapids can achieve significant energy savings and enhanced indoor comfort over time. By prioritizing transparency and quality, Koala Insulation has established itself as a trustworthy provider of spray foam insulation, allowing residents to experience enduring improvements in the energy efficiency of their buildings.

A Superior
Thermal & Air Barrier Services in Grand Rapids

Professional insulation services and energy efficiency solutions for residential and commercial properties.
Spray foam systems offer Grand Rapids homeowners and businesses a range of performance benefits. Spray foam products serve as an effective thermal barrier, just like traditional insulation materials, while offering additional advantages.
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These capabilities define the insulation type:

  • Prevents Conduction: Spray foam reduces thermal transfer from materials in contact with the insulation itself, such as wood or drywall.

  • Blocks Air Infiltration: The insulation system prevents treated air from transferring through gaps, holes, or damage in exterior walls and roofs.

  • Stops Moisture: Spray foam blocks moisture from entering the treated space and contributing to heat loss or gain.

Advantages Of
Spray Foam Insulation in Grand Rapids

Spray foam insulation outperforms all other types of insulation by large margins because its long-term benefits outweigh its initial installation costs. Spray foam also offers superior sealing properties and is environmentally friendly.

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Improved Air Quality

A well-sealed Grand Rapids home prevents dust, seasonal allergens, and West Michigan pollutants from entering. Professional spray foam insulation improves indoor air quality by reducing air infiltration and controlling moisture, making your home healthier and more energy efficient throughout the year.

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Water & Fire Resistance

Spray foam insulation is an ideal solution for protecting Grand Rapids homes against moisture intrusion from heavy Michigan snow and humid summers while enhancing fire safety. Its superior sealing properties create a robust barrier that resists mold growth and prevents water damage, ensuring a healthier living environment. By choosing this advanced insulation, West Michigan homeowners can improve their property’s safety, comfort, and long-term durability.

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Pest and Wildlife Protection

Spray foam insulation acts as a powerful barrier against common West Michigan pests, including rodents and insects, that can infiltrate Grand Rapids homes. This advanced insulation method creates a seamless protective layer that seals potential entry points and enhances your home’s energy efficiency, contributing to a more comfortable and secure environment for your family. Choosing spray foam insulation is a smart investment that fortifies your property against unwanted pest access, ensuring a peaceful and safe haven throughout the changing Michigan seasons.

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Strengthens Buildings

Spray foam insulation is essential for achieving an energy-efficient residence in Grand Rapids. When correctly installed and allowed to cure, it forms a robust bond with critical elements like framing, sheathing, and interior surfaces. This strong connection not only improves the structural stability of West Michigan buildings but also helps them adapt to natural movements and seasonal settling. Additionally, it reduces vibrations within the walls and enhances soundproofing, contributing to a quieter and more durable living environment. These benefits are vital for ensuring the longevity and year-round energy efficiency of your home.

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Soundproofing

By sealing gaps and cracks in your Grand Rapids home’s walls, floors, and ceilings, spray foam creates a continuous air and sound barrier. Its dense structure effectively absorbs and dampens sound waves, muting both external West Michigan noise and indoor disruptions from HVAC systems and plumbing. This professional insulation solution ensures a quieter, more peaceful living environment while simultaneously eliminating drafts for year-round comfort.

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Environmentally Friendly

Investing in spray foam insulation is a proactive step toward a more energy-efficient, resilient home in Grand Rapids. Unlike traditional materials that may shed fibers, cured spray foam is chemically inert, meaning it doesn’t release harmful particles into your West Michigan living space. During the professional installation process, specialized equipment ensures a precise application tailored to our local climate. While a brief off-gassing period is standard, once cured, the foam provides a permanent, seamless air seal. Because spray foam, specifically closed-cell varieties, does not retain moisture or support mold growth, it acts as a robust secondary barrier against water damage from heavy Michigan snow and humidity, preserving your home’s structural integrity for decades.

4-Step Spray Foam Process in Grand Rapids
 Spray Foam Installation Process

Professional insulation services and energy efficiency solutions for residential and commercial properties.
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The Koala Insulation efficiency experts will perform a thorough examination of your home’s current efficiency.
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  • Prep for Safe Installation
    Every spray foam installation project starts with our detailed safety and preparation process. We shut down your HVAC system; protect floors, furniture, and belongings; and set up negative-pressure ventilation to keep all spray foam particles safely contained. Every installation team member has received American Chemical Council safety training and wears full protective gear.
Diagram of spray foam insulation safety setup showing a worker in protective gear, exhaust fan, and sealed negative pressure area.
  • Precisely Apply Spray Foam
    Using industry-leading spray foam installation equipment, we test the sprayer, apply even lifts to ensure proper expansion, and measure spray depth as we go. Careful installation and coverage ensure the foam seals gaps properly and cures correctly.
Comparison of open-cell vs closed-cell spray foam insulation showing R-values, moisture barrier properties, and application.

Koala Difference: We calibrate mixes and test sprays to ensure the correct compound 1:1 ratio of A-side (isocyanate) and B-side (polyol resin) to achieve the desired results.

  • Trim and Inspect
    Once the spray foam application has cured, we trim excess materials and ensure ideal coverage, thickness, and adhesion. Our spray foam installers continue to ventilate the area as we inspect our work proactively.
Diagram showing trimming of excess spray foam insulation in wall studs for a finished, flush surface.

Koala Difference: We prepare a detailed inspection checklist based on your approved project plan, so you know the work was done right.

  • Clean Site, Re-Entry & Ongoing Support

    We clean the area thoroughly, remove any lingering insulation material, and let you know when it’s safe to return. Koala Insulation of Grand Rapids will always leave your West Michigan space cleaner than we found it, and our professional work is backed by a limited lifetime residential insulation warranty.

Koala Difference: Our team includes all relevant paperwork to make claiming any tax credits and rebates easy!

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Ready to get your project started? Work with the most experienced spray foam insulation contractors in Koala of Grand Rapids. Schedule a free quote with us today!

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What to Expect
In 5 Easy Steps

What to Expect
In 5 Easy Steps

Professional insulation services and energy efficiency solutions for residential and commercial properties.
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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.

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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. 

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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! 

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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.

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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. 

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Benefits

Professional insulation services and energy efficiency solutions for residential and commercial properties.
Professional insulation services for residential or commercial buildings to improve energy efficiency.
Enhanced Comfort
Professional insulation installation service for residential or commercial property improvement.
Energy Savings
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Quality Materials
Icon of a spray bottle representing professional application services.
Eco-Friendly Options
Professional insulation installation service for residential or commercial property improvement.

Enhanced Comfort

Stay cozy inside, no matter the weather outside.

Professional insulation installation services for residential or commercial property energy efficiency.

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.

Professional insulation installation service for residential or commercial property improvement.

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

And don’t just take our word for it, hear from our happy clients about their experience with our professional insulation services.

13,000+ Trusted Customer Reviews

“Everyone took pride in their work and were great to work with. It is so refreshing to find a company with such reliability and great customer service. We interviewed several companies and are so glad we hired them!”

BB
Professional insulation services for residential or commercial property energy efficiency and improvement.
Leslie M
Nashville, TN

“hey were very good and educated me about insulation and how to help me with my temperature changes that were occurring. Thank you.”

BB
Professional insulation services for residential or commercial property energy efficiency and improvement.
Cleo W.
Indian Head Park, IL

“They were not only dependable, but also fast and extremely clean. They did exactly what, and how they told me they would do it. I'd recommend them to anyone interested in quality, dependable, fast foam-insulation.”

BB
Professional insulation services for residential or commercial property energy efficiency and improvement.
Jorge B.
Atlanta, GA

“The entire team at Koala communicate exceptionally well, perform work at the highest level, and work together to get the job done in the fastest amount of time with excellent clean up skills.”

BB
Professional insulation services for residential or commercial property energy efficiency and improvement.
Joseph G.
Saint Augustine, FL

“The salesperson was honest and didn't try to oversell. The installer was prompt and very efficient, in and out in under 90 minutes. I would recommend them to anyone.”

BB
Professional insulation services for residential or commercial property energy efficiency and improvement.
Brian Y.
Florissant, MO
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4.8
Based on 257 reviews
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Sarah Chase profile picture
Sarah Chase
17:07 18 Jun 26
Mario and Eddy from Koala Insulation of GR were professional and kind, taking the time to describe what they were doing before and after to ensure I understood and was happy with the attic vent installation and additional attic insulation (blown/loose cellulose). They were friendly to my dog and respectful to me, worked quickly, and cleaned up after themselves effectively. I would recommend their high quality work to others and work with them again in the future if needed!
Rene L profile picture
Rene L
15:30 25 Apr 26
I recently had some insulation work done at my home and couldn’t be happier with the results. Eddy, Paco, Mario, and Dylan were fantastic. They were professional, worked efficiently, and made sure everything was cleaned up before they left. The ops manager, Brian, was also great to work with and kept the project on track throughout the entire process and made sure everything ran smoothly. If you're looking for a reliable team, I highly recommend these guys!
Todd Johnston profile picture
Todd Johnston
16:05 15 Mar 26
Probably the worst experience with a company I've ever had. If you are looking for insulation work, I'd say find someone else.

My house is 32 years old and I wanted the insulation and attic examined. Koala's salesperson came out and did the inspection. He stated that regarding the soffit vents (exact quote) "they are all blocked". Additionally, he stated they would "Install baffles and blockers in every truss or rafter space." Another direct quote. They were to spray some insulation to top off the levels as well. He sent the estimate and we agreed to the work.

The work crew came out a few days later. The crew lead said, the vents and baffles were fine and didn't need cleaning. They added the spray in insulation and left. Didn't even level or spread it that well, didn't clean out anything and didn't install any new vents or baffles. I checked their work (I don't think they thought I would look) and was not impressed. I called to get the Operations Manager, but was directed again to the Sales guy. When I told him the situation, he said that he didn't really check all of them and that I was focusing on a typo. I know the difference between a typo and a lie.

If he didn't check all of them, how can he state they were all blocked...? By lying.
He could have said I checked several, but not all, and most of them had some level of blockage. I would have been fine with that.
In essence, he lied.
He lied and the first work crew did not do what was agreed to.

The Ops Manager Bryan (Brian) came out and he examined the work and agreed it was not done as per the agreement. A second crew came out (Eddie and Mario) and actually did the work as agreed. They added around 12-15 baffles and leveled out the sprayed in insulation, and they cleaned out any existing vents/baffles. They did well and they did the work that should have been done the first time. Bryan made it right.

I eventually spoke to the owner who did take a small amount off the invoice. Still, the worst experience with a company I've ever had.
Amy Z profile picture
Amy Z
15:56 26 Nov 25
Just got attic insulation today, Jordan & Paco did a great job, very friendly and professional, the clean up was spotless! Also a shout out to Chaz the salesman very upfront and explains everything in detail. I definitely would recommend this company
William Miller profile picture
William Miller
13:01 21 Nov 25
The product and installation exceeded the sales promise. They were able to get me scheduled for insulation earlier than all the competition and their crew was very courteous and well mannered and did a very thorough job, i was watching, and cleaned up after the process was completed. I Highly recommend them.
Christopher profile picture
Christopher
15:28 18 Nov 25
I was impressed. Work was done well. They will back up their work and their quotes, just work with Brian or Chaz if you have an issue. I had an issue with the work that was addressed quickly and promptly. Quote seemed fair priced. I feel confident enough to recommend to friends and family.
Megan Ross profile picture
Megan Ross
00:02 02 Jul 25
We had a great experience! Dylan and Paul were very professional, keeping me updated as they worked. They took pictures to show me the depth of the new insulation and baffles in our attic. They were both very personable and were great with our dog too! Thank you guys!
David ward profile picture
David ward
19:31 24 Jun 25
Was driving to the new olive garden in battle creek and was almost rearended by 1 of the trucks from this company working on the new texas roadhouse. I drove over there to ask if they had a problem and why they were driving so recklessly and everyone acted like they didn't speak English. Very poor professionals if you ask me. Your driving a company truck for god sake that has the name and business number right on it. Hope someone gets a good talking to. And from someone who does hvac I will never use this company because of this incident of immaturity.
Taylor Hunt profile picture
Taylor Hunt
15:55 19 Jun 25
Had Koala Insulation come out to do foam insulation. After checking things over, I noticed they had missed a few spots—but they were super quick to respond and promptly scheduled to come back out to fix it. I appreciated how easy they were to work with and that they stood behind their work. I actually ended up hiring them again to add blown-in insulation while they were there the second time. Overall, great experience and I’d definitely recommend them!
Michael Jardine profile picture
Michael Jardine
20:15 22 Apr 25
Beesham arrived in time and started working immediately. The task took most of the day, but he and his helper kept working on it until it was done.

So far, I am completely satisfied with their work and hope that, over time, this will attic insulation removal, disinfect and replacement project will prove a wise investment.

Koala Insulation has done an excellent job at a fair price and I highly recommend them.
Cindy Laug profile picture
Cindy Laug
12:41 18 Apr 25
Koala just did insulation for me. They did the attic and the walls. They ended up blowing a ton of insulation into my house from under my kitchen sink and don't want to take any responsibility for it. I have COPD and Emphysema and they didn't care that I couldn't breathe and was high anxiety and stressed about it. It caused a flare up where I had to be on additional meds for several days, and I 'm still not ok. I then had to pay someone to clean it up (even though they kept telling me they'd clean it up beautiful - they definitely did not). I asked them to pay my cleaner (0) because I shouldn't have to and they argued with me and haven't contacted me since. Koala replied saying they didn't do any work for me and I must be talking about someone else. They did it through MI-HOPE and they know they did and they surely have record of it.
Douglas Renggli profile picture
Douglas Renggli
19:55 14 Jan 25
Dylan and Vinny were awesome! Polite, courteous, quick and professional. They explained the steps they were taking before starting and kept us updated throughout the day. Highly recommend them, even though it was a really cold and snowy day they had smiles on the whole time
4th Geer profile picture
4th Geer
18:56 02 Jan 25
Tim Hargis profile picture
Tim Hargis
01:59 26 Dec 24
Koala Insulation did a nice job updating the insulation in our home. They responded to my initial inquiry quickly, explained the process thoroughly, and did an efficient job with the insulation. We were very pleased with the entire process from start to finish.
Clay Dedeaux profile picture
Clay Dedeaux
22:00 23 Dec 24
The team did a great job in the attic with interior attic repairs, material removal, and reinstallation of insulation, as well as good preparation and clean-up. They crew was well staffed so no one person had to do all the work. All of their charges were shared with me before the work began.
John B profile picture
John B
13:35 22 Dec 24
The team and manager were both quick and professional. I would recommend Koala insulation to anyone in the area.
José Guilbert II profile picture
José Guilbert II
21:10 17 Dec 24
Koala made the entire process so easy. Working with Chaz throughout the process to the awesome service received from the service techs Vinnie and Corbin and the experience was phenomenal. Great customer service, friendly , thorough and willing to answer questions. I recommend Koala to anyone and will use them moving forward for any insulation needs. Thank you
Kristine Main profile picture
Kristine Main
17:26 04 Dec 24
Thank-you for the job well done! All the guys were friendly and nice.
The house is noticeably warmer and outside noise is hardly noticed.
The only thing that should of been better was the cleaning up. The inside of garage is very dirty.
Liz Carpenter (Liz) profile picture
Liz Carpenter (Liz)
06:52 12 Nov 24
We used koala to get new insulation blown into our attic space. They finished quickly however, our entire upstairs was caked in a layer of dust. No warning was given about how much dust would end up in the area nor was any dust protection used. In the end we reached out to koala and they came back to vacuum and dust. I'm still ending up having to wash all of my clothes, remove everything in my room and wipe everything down as there is dust in every crevice. I also had to relocate my parrot for the night so I could clean his living space as it was dangerous to keep him home. The people we interacted with where kind and tried to remedy the situation but at the end of the day I am still having to spend a good chunk of my day cleaning up after their service.
Elizabeth O'Malia profile picture
Elizabeth O'Malia
17:21 25 Oct 24
Corbin, Dylan and Brian did a fantastic job with insulating my attic and basement. They were knowledgeable, friendly, efficient, clean and worked quietly while I was working at home. Thank you so much!!
Brett & Traci Pierce profile picture
Brett & Traci Pierce
17:03 26 Jan 24
We were originally quoted a price for going thru our siding but when we did our “test” the worker advised he could easily lift the siding and said he would get us a price to go under the siding vs thru so we could make decision on which route to go. We never received the second quote so when the worker showed up this morning (30 mins late) we had no choice but to go thru the siding as no one knew what the cost would be to go the other route.

The workers who completed the work were nice and efficient but their attention to detail was lacking. They didn’t stop in the correct place and ended up spraying loose insulation into our unfinished garage. Despite their “clean up” there is still a lot of clean up to be completed including in the garage and the yard and driveway.

I was instructed to sign the invoice and it was actually the incorrect one and I was the one to notice.
Rob Iafrate profile picture
Rob Iafrate
13:55 03 Jun 23
I would highly recommend Koala Insulation. They installed a couple of bath fans, air sealed our attic, added blown in insulation in our attic, and spray foamed insulation along most of our accessible rim joists in our basement. They also removed and replaced ceiling drywall in the basement for acces to some of the rim joists. We prepped for their arrival by moving furniture and they were in and out in a single day, only 5-6 hrs! The crew was top notch! They were very respectful of our property, friendly and professional. They exceeded my expectations in all aspects of their work and service, answering all of my questions and especially removing and replacing the ceiling drywall. The crew seemed to enjoy their work and have an awesome teamwork system the owner should be very proud of. I'm very happy working with them, excellent service and quality of work.
Professional insulation installation service for residential or commercial property improvement.
Professional insulation installation service for residential or commercial property improvement.
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Ready to get your project started? Work with the most experienced spray foam insulation contractors in Koala of Grand Rapids. Schedule a free quote with us today!

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Frequently Asked Questions
 Spray Foam Insulation FAQs

Get all your questions answered by our local experts. If we didn’t address your question here, give us a call at (616) 333-6667 or schedule a free quote today!

Is spray foam right for my attic in Grand Rapids?

Spray foam insulation can be an excellent choice for attics, but there are a few key factors to consider:

Moisture and Preparation: Any existing dampness or water intrusion should be resolved before installation to ensure strong adhesion and long-term performance.
Surface Readiness: Concrete or masonry walls may need light cleaning or preparation so the foam bonds evenly and seals effectively.

By addressing these factors, spray foam creates a dry, comfortable, and energy-efficient environment that helps protect your home from the ground up. When applied by certified Koala Insulation professionals, spray foam provides lasting comfort, reduced energy costs, and year-round peace of mind. Learn More

Infographic comparing a standard vented attic versus a spray foam insulated attic, showing temperature differences and HVAC efficiency.
How much does spray foam insulation cost in Grand Rapids?

There are several factors that affect the cost of spray foam insulation. In Grand Rapids and most cities, insulation costs vary based on the amount of material required (based on square footage), the need to remove existing insulation, and the complexity of the project.

  • Small attic (Less than 500 square feet): $1,000 to $2,000
  • Medium attic (1,000 square feet): $2,000 to $5,000
  • Large attic (2,000 square feet): $4,000 to $8,000

Get a free quote for the most accurate assessment and a personalized quote.

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The Koala Insulation efficiency experts will perform a thorough examination of your home’s current efficiency.
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Is spray foam right for my basement in Grand Rapids?

Spray foam insulation is an excellent option for basements, offering both energy savings and moisture control. Here are a few important considerations:

Moisture and Preparation: Any existing dampness or water intrusion should be resolved before installation to ensure strong adhesion and long-term performance.
Surface Readiness: Concrete or masonry walls may need light cleaning or preparation so the foam bonds evenly and seals effectively.

By addressing these factors, spray foam creates a dry, comfortable, and energy-efficient environment that helps protect your home from the ground up. When applied by certified Koala Insulation professionals, spray foam provides lasting comfort, reduced energy costs, and year-round peace of mind. Learn More

Infographic comparing a standard basement vs. one with spray foam, highlighting moisture barrier, air sealing, and energy savings.
How much does basement spray foam installation cost in Grand Rapids?

The cost to insulate a basement with spray foam depends on the size of the area, existing insulation, and project complexity.

Small basement (≈500 sq ft): $1,200 – $2,800
Medium basement (≈1,000 sq ft): $2,400 – $5,600
Large basement (≈2,000+ sq ft): $4,800 – $9,000

Spray foam insulation helps eliminate drafts and moisture, providing a more comfortable, energy-efficient lower level. Pricing per square foot may increase if your basement requires old insulation removal, foundation wall prep, or hard-to-reach rim joists.

Every home is different. For a detailed estimate tailored to your basement’s layout and energy goals, contact team today for a free assessment. Learn More

Free Insulation Assessment

The Koala Insulation efficiency experts will perform a thorough examination of your home’s current efficiency.
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Should I insulate my basement ceiling with spray foam?

Closed-cell spray foam works best for basement ceilings because it provides a high R-value and acts as a moisture barrier. It can also help block sound between floors. For the best results, it’s important to assess your home’s layout, HVAC design, and moisture conditions before choosing where to apply spray foam.

Koala Insulation technicians can evaluate your space and recommend whether ceiling, wall, or rim-joist insulation will deliver the greatest comfort and energy savings for your home.

Is spray foam insulation safe?

Spray foam insulation is safe when handled and installed by a trained professional. Spray foam poses no health risk once it is cured, but it can be hazardous during installation due to its chemical composition. We follow all industry safety standards, ensure proper ventilation, and complete curing before occupants return to the space, usually 24-48 hours after project completion.

Will spray foam help with the mold and mildew issues in my basement?

Closed-cell spray foam works best for basement ceilings because it provides a high R-value and acts as a moisture barrier. It can also help block sound between floors. For the best results, it’s important to assess your home’s layout, HVAC design, and moisture conditions before choosing where to apply spray foam. The cost to insulate a basement with spray foam depends on the size of the area, existing insulation, and project complexity.

Koala Insulation technicians can evaluate your space and recommend whether ceiling, wall, or rim-joist insulation will deliver the greatest comfort and energy savings for your home.

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Free Insulation Assessment

The Koala Insulation efficiency experts will perform a thorough examination of your home’s current efficiency.
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Can you insulate the concrete block walls in my basement?

Concrete block basement walls can be insulated with spray foam, provided the surface is clean, dry, and free of moisture issues. Closed-cell spray foam is typically best, as it both insulates and creates a moisture-resistant air seal that helps prevent mold and drafts. Before application, any existing leaks or dampness should be addressed to ensure long-term performance and adhesion.

At Koala Insulation, we’ll determine whether spray foam, rigid foam board, or a hybrid system is the best fit for your block-wall basement so you get a solution built for long-term performance.

Comparison of spray foam, rigid foam board, and fiberglass batt insulation for concrete block-wall basements, showing moisture barrier and R-value differences.
Do My Rim Joists Need An Airtight Seal?

Rim joists absolutely benefit from an airtight seal. Sealing this area with spray foam insulation prevents drafts, moisture intrusion, and heat loss where the foundation meets the framing, one of the most common sources of energy waste in a home. By creating a continuous air barrier, you’ll enjoy warmer floors, lower utility bills, and better indoor air quality year-round.

Learn more about rim joist insulation and contact your local Koala Insulation contractor today.

Diagram explaining why rim joists need an airtight seal, showing how spray foam prevents drafts, blocks moisture, and improves air quality.

Free Insulation Assessment

The Koala Insulation efficiency experts will perform a thorough examination of your home’s current efficiency.
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Is spray foam insulation flammable?

Spray foam insulation itself is not flammable once fully cured, but like most building materials, it can burn when exposed to direct flame. Koala Insulation uses fire-rated, code-compliant products. When installed correctly by our certified technicians, spray foam insulation provides a safe, durable, and energy-efficient layer that meets modern fire safety standards.

Infographic explaining spray foam insulation fire safety, fire-rated materials, thermal barriers, and building code compliance.
Can you paint spray foam insulation?

Spray foam insulation itself is not flammable once fully cured, but like most building materials, it can burn when exposed to direct flame. Koala Insulation uses fire-rated, code-compliant products. When installed correctly by our certified technicians, spray foam insulation provides a safe, durable, and energy-efficient layer that meets modern fire safety standards.

Infographic explaining how to paint spray foam insulation using latex or fire-retardant paint like DC315 for UV and surface protection.
How long does spray foam insulation last?

Spray foam insulation typically lasts 80 to 100 years when professionally installed and properly maintained. Spray foam adheres directly to the building structure and won’t sag or settle, which means it offers the same performance decade after decade.

What are the best applications for spray foam insulation?

Spray foam insulation is a premium, versatile option for a few specific applications. After your initial assessment, we may recommend spray foam for:

Attics: Open-cell spray foam on attic floors seals air leaks and prevents treated air in the living space from escaping into the attic.
Basements: Closed-cell spray foam acts as a vapor barrier in moisture-prone basements, crawl spaces, and cellars.
Exterior Walls: While not always necessarily the most cost-effective option, spray foam fills irregular gaps in wall cavities while providing an effective moisture barrier.
Floors: Spray foam is sometimes sprayed between floor joists in suspended timber floors (non-slab).
Roofs: Closed-cell spray foam installed under the roof deck prevents air leaks and protects against moisture issues.

Can I spray foam insulation myself?

While DIY kits exist, spray foam insulation is not a good do-it-yourself project. Professional installers have the training, equipment, and ventilation controls needed to ensure safety, proper curing, and compliance with building codes. Poor installation from DIY attempts can lead to moisture problems, off-ratio foam, or even voided home insurance coverage, making professional service from Koala Insulation technicians the smarter, safer choice.

Graphic comparing DIY spray foam insulation and professional installation, showing risks like safety hazards, insurance issues, and mold versus benefits such as code-compliant installation, warranty protection, and a superior seal.

Free Insulation Assessment

The Koala Insulation efficiency experts will perform a thorough examination of your home’s current efficiency.
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Insulation Education

Learn why insulation is critical to your home’s energy efficiency and your family’s comfort. 

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