
Serving Hamilton, MI and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Warranties offered
"Excellent job to spray insulate the existing attic. We have noticed a difference already."






Serving Hamilton, MI and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Warranties offered
"Excellent job to spray insulate the existing attic. We have noticed a difference already."





Serving Hamilton, MI and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
"Eric responded immediately and set up a consultation. He was prompt, very polite, thorough and knowledgeable. He explained everything in detail and was very professional throughout the entire process. His pricing was also quite fair. The only reason I did not go with him was that I needed other work done outside of his area of expertise. I was able to bundle that work with another insulation contractor which better suited my budget at this time. I would absolutely recommend Eric and will definitely contact him, should I need any additional work in the future."

Serving Hamilton, MI and surrounding areas
Approved
In business since 2021
Free estimates
Warranties offered
Koala Insulation of Grand Rapids is the area's certified insulation expert providing high-quality insulation services to homeowners, contractors and property owners. We work with new construction, retrofit applications, and properties affected by natural disasters or that have suffered significant damage. We provide all types of insulation including blown-in cellulose and fiberglass, spray foam, and batt-insulation. Furthermore, we provide a number of energy efficiency upgrades such as air sealing, thermal imaging, hatch, can light covers and solar attic fans. If it involves insulating or improving energy efficiency within a building envelope, we can handle it. We offer competitive prices and free insulation evaluations. We are locally owned and operated, fully insured and licensed, and our services come with a limited lifetime warranty.





+15

Serving Hamilton, MI and surrounding areas
Approved
In business since 1977
Free estimates
Warranties offered
"Everyone I worked with at USA Insulation was courteous and professional. Cliff walked through my home and gave me a thorough estimate, going over all the work that would be done to insulate my home. Tyler and his crew arrived just over a week later. They were quick and efficient and walked me through my house to show me the work was done. I would absolutely recommend USA Insulation to anyone looking for a refresh."





+6

Serving Hamilton, MI and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Great work, very personable, professional, courteous, and reasonably priced. Received blow in insulation for garage and entire attic in house… they hammered it out, did a quality job, and work very hard."





+6

Serving Hamilton, MI and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Excellent repair work done on my deck on time."





+336

Serving Hamilton, MI and surrounding areas
Approved
In business since 2000
Free estimates
Credit card accepted
"Friendly and professional company. Explained alot about what they were doing, cause I really didn't know anything about insulation and ventilation."




Serving Hamilton, MI and surrounding areas
In business since 2019
Free estimates
"It was the coldest day of the year so far and they still showed up and did the job which was all outside."





Serving Hamilton, MI and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"The salesman that came to the house and gave the quote was professional and did not apply any pressure to buy. He listened to what I was looking to have completed and was able to give me a very competitive quote. I did acquire two more quotes but Seal Tech provided me not only the better quote but also the most comfortable. The installers showed up on time, took precaution to protect our landscaping and installed the foam insulation. We noticed that the application in the walls have left our home much more comfortable and over the past three months our utility usage has gone down at least 10% each month.
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Serving Hamilton, MI and surrounding areas
In business since 2006
Free estimates
Emergency services offered
"They did a great job. On time both for the estimateand the installation of my blown in insulation. They cleaned up and were very nice. Highly recommend."
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.

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