Serving Garden City, 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 Garden City, MI and surrounding areas
Approved
In business since 1977
Free estimates
Warranties offered
"Dana Insulation did a fantastic job. They were on time, very thorough and cleaned up after themselves before leaving. Would definitely recommend them for any of your insulation needs."
Serving Garden City, MI and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
"Ron Stead was very friendly and professional on the phone when I talked to him. His son who came out to do the inspection was very knowledgeable and informative. The 2 guys that were sent out to do the insulation were professional, courteous, cleaned up after themselves, and very friendly. I cannot recommend this company enough. They were the lowest quote and by far the best value!"
Serving Garden City, MI and surrounding areas
Approved
In business since 2004
Free estimates
Warranties offered
"Ron from Ecology Products , INC He was very professional and explained All the different option's and feature's of the World of Insulation's...I Learned a lot that day. They showed up on the date and time we had Scheduled and even called the day before to make sure we would be home. His crew came in introduced themselves. They explained what all they were doing to make sure we were all the same page as per Ron's visit.They wasted no time in getting to work and finishing up and cleaning the job site up.I would highly recommend them for your project's. Thank's to Ron and his crew !!!"
+1
Serving Garden City, MI and surrounding areas
Approved
In business since 1977
Free estimates
Emergency services offered
"From Tom Mackey the GM, to Judi in the office, to Al the job site foreman, this was one great company to have done work in my home. I have had a lot of different crews out over the years and Dana Insulation is at the top. Honest and professional all the way through, and the outstanding work was completed sooner than I expected. Highly recommend this company for insulation needs."
+4
Serving Garden City, 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 Garden City, 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"
Serving Garden City, MI and surrounding areas
Approved (Corporate)
In business since 2006
Free estimates
Warranties offered
"They are very nice, explain before and while they are doing the work whatâ s going on, how much insulation is or isnâ t in the house and did a great job! Highly recommend."
+14
Serving Garden City, MI and surrounding areas
Approved
Super Service Award Winner
In business since 2004
Free estimates
Emergency services offered
"This company cares. They put people above profit. I was in a bad situation, after a nasty winter my roof seemed to be disintegrating before my eyes. It went really fast. Then Daryl stepped up to help me out of a difficult situation. Within hours they expedited the crew, and Walter and Lauren ordered materials and made my roof a priority. Now with three days of rain coming I know my house is protected and it looks gorgeous."
+84
Serving Garden City, MI and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"excellent experience by all professionals involved with my leaking roof."
+7
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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