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Top-Rated Spray foam insulation pros in Willis - Updated Nov 2026

Avatar for RetroFoam of Michigan Inc.
RetroFoam of Michigan Inc.
4.9(
289
)

Serving Willis, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Warranties offered

"Crew #7 performed spray foam insulation for all my exterior walls and crawl space walls. They were very professional, on time and did a great job with application and cleanup! I’m extremely happy with how everything turned out. I would d definitely hire Retrofoam again for another job!!"
Spray Foam Insulation
Installing RetroFoam with Siding
Installing RetroFoam with Brick Exterior
RetroFoam Insulation
Response time20 mins
Response rate100%
143 neighbors recently requested a quote
Avatar for DANA Insulation
DANA Insulation
4.3(
49
)
Insulation - Install or Upgrade

Serving Willis, MI and surrounding areas

Approved

In business since 1977

Free estimates

Warranties offered

"The team at Dana Insulation is top notch. From Tom in sales to the installation team everyone was courteous and professional. They put down protective plastic on the floors so as not to get any dirt or insulation on the floors. Did a great job cleaning up after the job as well. Thank you very much Dana Insulation!!!! I would definitely recommend this company!!!"
12 neighbors recently requested a quote
Recommended by55%of homeowners
Avatar for BlownInsulationMI.Com, LLC
BlownInsulationMI.Com, LLC
4.5(
253
)

Serving Willis, MI and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"They did a nice job,they even filled in a hole where my air conditioning unit was coming into the house it was done with foam, now that's paying attention to detail. Very pleased"
almost finished with attic
Blown Insulation finished attic
Response time1 day
38 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for USA Insulation of SE Michigan
USA Insulation of SE Michigan
4.3(
24
)

Serving Willis, MI and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"They were very efficient and didn't try to pressure me into other products/services. The low pressure thing is important to me. I fully intend to use them for work later on."
Partial Aluminum Siding
After Installation
Post Installation Photo
Post Install Photo
Photo from Free Estimate

+33

Response time2 days
14 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Spink Insulation
Spink Insulation
4.2(
31
)

Serving Willis, 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!"
Attic Insulation
Extreme Makeover Home
Retrofitting Walls
24 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for BlownInsulationMI.com LLC
BlownInsulationMI.com LLC
4.6(
11
)
Insulation - Install or Upgrade

Serving Willis, MI and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"Could not ask for a better experience with a home project. The two young men sent to do the work were most courteous, on-time, professional and thorough in their work keeping us informed of each action and approx. timeline. These young men, and the services performed, truly reflect the service commitment of the owners to their customers like us! We are most pleased with the work and look forward to further benefitting from the work with our insulation needs. Would rehire, if needed. Would, sans hesitation or equivocation highly recommend this service provider - BlownInsulation.comm"
Additional Photos
Prep Work done
Blown In Insulation
Additional Photos
Additional Photos

+1

Response time7 hrs
19 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for CS Insulation
CS Insulation
5.0(
8
)

Serving Willis, MI and surrounding areas

Approved

In business since 2015

Free estimates

Small jobs welcome

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumerÂ’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n \n

Fiberglass bungalow
Insulation
Insulation
Insulation
Insulation

+7

23 neighbors recently requested a quote
Avatar for Seal Tech Insulating, Inc.
Seal Tech Insulating, Inc.
3.8(
130
)

Serving Willis, MI and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"We had raccoons in our attic for about 3 weeks , and you can guess what mess a nesting raccoon can make , we needed to have all the fiberglass batting removed and than new spray foam installed . The 3 guys showed up on time and went right to work, oh , and this was done in late December so even more fun , the two young men that removed the old insulation were very efficient , bag after bag came down , about 45-50 in all , and then the foam guy went up and did his thing our is much quieter and warmer also could not be happier and will use again if the need ever arises , it did cost more for the foam but well worth it"
Injecting wall foam in home with siding
Injecting wall foam in brick home
Open Cell spray foam
Open Cell Spray Foam
Response time1 day
67 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
277
)

Serving Willis, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Emergency services offered

"I am very pleased with my new windows. I used Home Genius Exteriors to do my roof, gutter protection, and now Windows. This is an absolute amazing company, my salesman brendan was very helpful, Devan the Project Manager helped make sure everything went smoothly. Walter and Mike also from production were very friendly and professional. And Shawn, the window installer was polite,knowlagable, and efficient. And even cleaned up on his way out. Next on the agenda is to get a new door taken care of. Highly recommend HGE"
Roofing
Roofing
Roofing
Roofing
Roofing

+86

1658 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Pro Home Improvement, Inc.
Pro Home Improvement, Inc.
3.5(
616
)

Serving Willis, MI and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Warranties offered

"We had the rim joists in the basement sprayed. They removed all of the old fiberglass insulation and sprayed the new foam. Everyone - sales rep, scheduler and installers - were prompt, informative and courteous."
Closed Cell Spray Foam
Check out our great Spray Foam
Check out our great Spray Foam
Make-A-Wish
Eric and Tim ribbon cutting

+14

Response time3 hrs
130 neighbors recently requested a quote
Recommended by96%of homeowners
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FAQs for spray foam insulation projects in Willis, MI

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.