4.7 
19 *The Angi rating for Insulation Service companies in Portland, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Portland, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on May 06, 2026
Serving Portland, 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 Portland, MI and surrounding areas
Approved
In business since 2013
Free estimates
Warranties offered
"I was very pleased with the blown fiberglass insulation they installed in my attic. It's a nice, clean job with quality insulation. I had 5 quotes from companies and this was by far the best value for the job."
+20
Serving Portland, MI and surrounding areas
Approved
In business since 1977
Free estimates
Warranties offered
"Fast and efficient and cleaned up when finished. Showed us pic's as work progressed so we could see the space after old insulation removed, and after new foan insulation was installed showing even application and depth."
+6
Serving Portland, 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 Portland, MI and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"We are extremely with the workmanship Infinity Home Improvement showed. Excellent response time. Spectacular customer service. We highly recommend"
+336
Serving Portland, 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 Portland, 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 Portland, MI and surrounding areas
In business since 2005
Free estimates
Small jobs welcome
"Professioal and kept me well informed of what was being completed. And asked me if I wanted to check the instulation as the project was being completed. Attic insulation."
Serving Portland, MI and surrounding areas
In business since 1998
Free estimates
Emergency services offered
"They've maintenanced my furnace before I required a new one and they've always maintenanced the new one since I got it replaced about 3 years ago. Very easy to work with. I think I've been using them since 2008."
Serving Portland, MI and surrounding areas
In business since 2005
Free estimates
Credit card accepted
We have a passion for quality, well built, and long lasting buildings. We not only hope you find our closed-cell spray foam to be an incredible product, but we hope you can see that it is far superior to other forms of insulation available. We hope to be working for you soon! Give us a call today at (616)-644-8650. \n \nFYI: Wall studs must be exposed.
+4
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