
Serving Marshall, 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 Marshall, 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 Marshall, MI and surrounding areas
Approved
In business since 1994
Free estimates
Small jobs welcome
"From the consultant, Joe, to the five men that came to my home, I was impressed with the professionalism and respect for my home. Tyler,Jake, Chuck, Dustin and Scott made sure everything was installed with exceptional precision and attention to detail. It took a full day to accomplish. They arrived on time, and cleaned up afterwards throughout my home and garage. Protective covering on their feet with additional protective materials on my floors and walls were used. Their care and respect went above and beyond. The product is eco friendly, fire retardant and mold resistant. And my home is warm and cozy. Removing all the old and filthy insulation that is 37+years old and leaving my attic space and foundation areas sealed and cleaned just makes everything feel buttoned up and tight. Highly recommend! Special shout out to Makaila and Katie, office personnel that kept in touch and applied for eligible rebates to help keep costs down as well. Thank you!"




Serving Marshall, MI and surrounding areas
Approved
In business since 2013
Free estimates
Small jobs welcome
"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 Marshall, 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 Marshall, MI and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"They made my bathroom easier and safe for me. They were a pkeasent company to work with and the installation crew were the greatest, they were on time, very conscious of there work which was outstanding, they were very hard workers. No complaints on them at all, and I would have them come back for another job anytime"





+336

Serving Marshall, MI and surrounding areas
Approved
In business since 2000
Free estimates
Credit card accepted
"I had infinity do insulation and an attic blanket for me back at the beginning of winter. I waited to post a review so I could see if it helped keep the house warmer. And it did, I no longer have to bundle up in my home. Outstanding service, I am impressed. I will continue to tell my friends how pleased I am with the work. And the next time i need a project done, I will call infinity without hesitation"




Serving Marshall, MI and surrounding areas
In business since 2012
Free estimates
Credit card accepted
"An excellent job doing the insulation. They came in did their job and were gone moments later. Very professional and fast service. Their pricing was the best I could find in the area. My attic is very small get around and they had no problem maneuvering and insulating the entire thing. I would highly recommend to anyone looking for high-quality insulation."





+29
Serving Marshall, MI and surrounding areas
In business since 2008
Free estimates
"They completed the insulation project quickly and were very helpful."

Serving Marshall, MI and surrounding areas
In business since 2012
Free estimates
Credit card accepted
"We received a quote on insulation and he gave excellent advice regarding what type of insulation we actually needed. He gave advice on some things that he found that were done incorrectly in our attic. He said our house would stay cooler longer during the day and he was exactly right about that. We would highly recommend WBI to everyone!"





+3

Serving Marshall, MI and surrounding areas
In business since 1999
Free estimates
Credit card accepted
"Greg, the owner, came out on two occasions to discuss the crawl space and drain tile. He is extremely knowledgeable and experienced in the crawl space industry. We had a few options and he told me about the new spray product he was using. It is this unique seamless liner that is sprayed on after preparing and insulating the area.
His crew was very professional and easy to talk to. We had some scheduling conflicts that were easy to work around and get the job done when we needed it to be finished.
The difference we noticed in the smell in our basement, the effect the insulation and seamless lining had on the air conditioning in our family room (which is above the crawl space) was immediate. We feel cooler air coming through the duct work since it isn't losing energy traveling through a non insulated space anymore and they basement smells and feels normal since the dirt and concrete is now completely covered by the new liner.
That new product is great.
Greg's company also did drain tile work in our basement. It was a different crew than the group who did the crawl space, but they were equally as professional and easy to work with. Rather than break up the job into 3-4 days they stayed late the first day to get everything ready and prepared so they could complete the job quicker. The job was done the next day. The price was very fair and the crew was extremely clean throughout thew whole process.
We now have a water tight, well insulated basement and we couldn't be happier with the results.
I have told several friends about the experience and would recommend them anytime. From Greg down to each of his crew members they really know how to do a good job and work with the customer."





+16
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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