Serving Northville, 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 Northville, MI and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"I hired Zebra Insulation to add 12 inches of insulation to our attic. The crew was very respectful, they showed up on time and cleaned up their mess when they were done. The whole process was seamless. I was glad that they took the time to explain why i was experiencing areas of inconsistent temperature through-out my home. They provided the best solution to fix the temperature issues I was experiencing. I highly recommend Zebra Insulation."
+14
Serving Northville, 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 Northville, MI and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
"I don’t mean to sound corny but they are no less than insulation geniuses."
Serving Northville, MI and surrounding areas
Approved
In business since 1977
Free estimates
Emergency services offered
"The salesman, Tom, and the installers, Tim and Jay, were all a pleasure to work with. I would definitely recommend Dana Insulation to my friends and family."
+4
Serving Northville, 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"
+1
Serving Northville, MI and surrounding areas
Approved
In business since 1971
Credit card accepted
Customers say: Quality work
"Crew arrived on site at time expected. Installed vapor barrier, blew in close to 20 inches of fiberglass insulation above the garage. Clean-up was fast and thorough."
Serving Northville, MI and surrounding areas
Approved
In business since 2017
Free estimates
Warranties offered
"Please don’t hesitate to hire this company. Everyone from the salesman to the workers who installed the insulation were fantastic. Very friendly, and hard working. Excellent value for the price."
+33
Serving Northville, 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 Northville, MI and surrounding areas
Approved
In business since 2019
Free estimates
Offers commercial services
"I hired Thermal Solutions to spray foam insulate my pole barn and they did an excellent job. I got 4 quotes and theirs was the cheapest. They say never go with the cheapest, but I did because I wanted to support a veteran owned, local business, and after talking with Niko, I felt confident the job would be done right. I'm really glad that I did because they came when they said they would, they did it just the way that I wanted, and they did a great job of cleaning up when they were done. I highly recommend them for open and closed cell spray foam insulation jobs!"
+15
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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