Serving Cedar Rapids, IA and surrounding areas
Approved
In business since 2004
Free estimates
Small jobs welcome
"Jeff is an expert in insulation. After several cold winters our upstairs is finally toasty warm!"



Serving Cedar Rapids, IA and surrounding areas
Approved
In business since 2004
Free estimates
Small jobs welcome
"Jeff is an expert in insulation. After several cold winters our upstairs is finally toasty warm!"



Serving Cedar Rapids, IA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"They preformed excellent work on the replacement of my homes blown in insulation, costumer service was on point and their communication was on point!"

Serving Cedar Rapids, IA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Warranties offered
"The house looks great they where very professional and fast"





+12

Serving Cedar Rapids, IA and surrounding areas
In business since 2000
Free estimates
Warranties offered
"Jeff Smith is based at the Waterloo office. He was very good at customer service & responded to my emails in a reasonable time given this is probably a busy time of the year (November) for them. I am having additional blow in insulation behind a knee wall & in the attic to bring me up to code. The work has not been completed yet. I am waiting for an energy audit. That is why I can only rate the company as a 3."





+6

Serving Cedar Rapids, IA and surrounding areas
In business since 2016
Free estimates
Emergency services offered
"The sales and installation team were prompt, efficient and professional. The project was completed - sale thru insulation in less than two weeks."





+6
Serving Cedar Rapids, IA and surrounding areas
In business since 2021
Free estimates
Credit card accepted
"Very reasonable price and great work. Would definitely recommend to anyone needing insulation. Great guys to work with. Will definitely use them for my next project."
Serving Cedar Rapids, IA and surrounding areas
In business since 1988
Free estimates
Emergency services offered
"It worked out fine and I have been on a contract with them for 3 years now."

Serving Cedar Rapids, IA and surrounding areas
In business since 2010
Free estimates
Emergency services offered
"Dillon was a great guy and worked fast and efficient. My house is 50 plus years old and the duct work had never been cleaned. Post the work, the house even smelled better. I am in the middle of a complete remodel and living in the house. I had all 11 vent grilles removed -(saved Dillon a pile of time not having to remove and re-install) and I would have thought a discount would have been in order."





+30

Serving Cedar Rapids, IA and surrounding areas
In business since 1995
Free estimates
Credit card accepted
"I got three estimates and went with Deneve. I am pleased with my choice, and after 3 years and still glad. Our neighborhood had a hailstorm and everyone needed new siding. Although Deneve had more customers in line, waiting for their house to get new siding, I never felt that they rushed or in any way compromised the job just to hurry on to the next one.The craftsmen were all very punctual, professional and picked up after themselves really well. There was a younger guy who seemed to be new and he was carefully supervised, positively supported and was a great addition to the work group. Just as important as the good job they did with the siding, they helped me solve 2 problems I'd been having with the house: Birds kept building nests at the top of the brick columns on my front porch so they fashioned a solution with metal break. I had previously had an occasional leak from rainwater getting behind my old siding during hard rainstorms. They took special care with the siding in that area and have said that if that happens again with their siding they stand behind their work and will come remedy it."





+2

Serving Cedar Rapids, IA and surrounding areas
In business since 2024
Free estimates
"We had a great experience with Iowa Insulation Plus! They were professional, knowledgeable, and easy to work with throughout the entire process. They explained everything clearly, completed the work efficiently, and left the area clean when they were finished. We?re very happy with the quality of the work and would definitely recommend them to anyone needing insulation services!"
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.
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