
Serving Deerfield, 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 Deerfield, 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 Deerfield, MI and surrounding areas
Approved
In business since 2006
Free estimates
Warranties offered
"They did a great job and were very professional. The old insulation was put in a dumpster and most of it stayed in it. Was very pleased with their work.
"

Serving Deerfield, MI and surrounding areas
Approved
In business since 2017
Free estimates
Warranties offered
"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."





+33

Serving Deerfield, MI and surrounding areas
Approved
In business since 2000
Free estimates
Credit card accepted
"The guys showed up on time and emptied my attic (which needed it), blew in the insulation and cleaned up. Good job."





Serving Deerfield, MI and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"The work was performed quickly. The employees were courteous. Work was started as planned and finished in two days. A supervisor came to our house after work was complete to check with us and on results. After all work was complete we did contact our project specialist with a few concerns. First, when cleanup around the home was complete, all of our mulch from flower beds was also removed along with debris. While we certainly appreciate the debris removal (especially nails), the cost to replace the mulch was pricey. Second, the dumpster in the driveway (one car driveway) was not removed for 3 days after the job was complete. We had gotten a significant snow fall and it was very difficult to shovel around and took up the only off-street parking spot we have. Finally, when we entered our attic in the spring to change a furnace filter we were dismayed to find tar paper, soot, and shingle pieces all over the attic - including all items stored up there. We have not yet found a solution to this problem as much of the debris covers the insulation. If this is a standard problem then we would have liked to know in advance.
"





+7

Serving Deerfield, 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.
"

Serving Deerfield, 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."
Serving Deerfield, MI and surrounding areas
In business since 2007
Free estimates
Credit card accepted
"They did a great job with adding cellulose insulation to by exterior walls. We had some problems getting a hold of the salesman but nothing to complain about or stop us from recommending this company. Great value for the money."



Serving Deerfield, MI and surrounding areas
In business since 1971
Credit card accepted
"I love American Shield. I love American Shield. I love them. We have 2 homes; this home is 30 years old, our home in California is twenty years old and we have used them in both places.
A, number 1, plus, plus!"





+2
Serving Deerfield, MI and surrounding areas
In business since 2015
Free estimates
Credit card accepted
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
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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