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Avatar for AFI Insulation
AFI Insulation
4.4(
60
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Knoxville, IA and surrounding areas

Approved

In business since 2014

Free estimates

Small jobs welcome

"This could not have gone any smoother. Despite having to re-schedule the original, 1st quoting appointment, Darren was here the very next day. I had a quote by the end of that 2nd day/appointment, was scheduled the next day for the following Monday and the 2-person team was in and out within 90 minutes. My kids didn't even wake up(granted, they could sleep thru the emergency siren!) but wow. My attic/crawl space is now fully insulated! All this while we are adjusting to our new normal of social distancing and heightened sanitary measures. I would use AFI again and would recommend them based on this experience."
Response time2 days
32 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Attic Solutions
Attic Solutions
4.8(
91
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Knoxville, IA and surrounding areas

In business since 2009

Free estimates

Warranties offered

"Prevailing came in to insulate my basement and attic. The workers were professional and worked the entire time they were here (which seems like a low standard, but I've had situations where 4 people come to work and 2 stand around talking for most of it from other companies). More importantly, they explained what they were doing as they did it, and cleaned up after themselves before they left! Scheduling the service was quick and easy since they were able to use our Alliant Energy quote to avoid a second home assessment, and they came in under budget. Very satisfied - plan to have them back to blow insulation in the exterior walls before winter."
Consistent insulation level.
Our family business
Newer attic insulation topped off to R-49
Insulation added in a restricted space to R-49
Attic insulation added around dense truss work.

+13

Response time8 hrs
Recommended by98%of homeowners
Avatar for Retrofoam Iowa, Inc.
Retrofoam Iowa, Inc.
4.3(
44
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallSpray Foam Insulation - Install

Serving Knoxville, 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."
 Remove siding, inject product, replace siding.
 We fill the entire space...
 Between the studs-sealing the home
Homes we have insulated
Homes we have insulated

+6

Recommended by100%of homeowners
Avatar for L & L Home Solutions With Universal Windows Direct
L & L Home Solutions With Universal Windows Direct
4.9(
88
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Knoxville, IA and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"The team was on time and very friendly. They explained what they were going to do and got right to work. They laid out materials to cover our belongings in the bedroom as well as the carpet. After they had installed the insulation they patched the holes really well. I won't have to do any extra work! They even vacuumed after they were done which was really appreciated and a sign they care about the quality of the work they complete. I will hire them again in the future to complete more insulation of our attached garage. I would also recommend them to friends and family!"
Insulation Project
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Insulation Project

+2

Recommended by100%of homeowners
Avatar for I-Town Insulation
I-Town Insulation
5.0(
2
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Knoxville, IA and surrounding areas

In business since 2021

Free estimates

Credit card accepted

Thank you for finding I-Town Insulation here on Angi! We are family owned and operated in the Des Moines area and are actively booking Insulation Replacement projects and exterior work for your home! We are fully insured and I personally back up all of our completed work to assure everything is done right the first time! I look forward to speaking with you directly on our next project.

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Recommended by100%of homeowners
Avatar for Daughenbaugh Construction & Restoration
Daughenbaugh Construction & Restoration
4.5(
37
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Knoxville, IA and surrounding areas

In business since 2002

Free estimates

"Had a water leaking through my roof from Ice dams and damage on whole wall on the west side of my living room.  They had to replace all dry wall, insulation and match the half of my ceiling to the other half that was not damaged.  Also replace a huge 1960 window with 3 new energy  windows.   Great work you would never know that the half of the room had been redone match all the paint and knock down on the ceiling to a tee.  Very knowledgeable, professional and kept me updated on all the process that was going on."
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+2

Recommended by90%of homeowners
Showing 1-10 of 23
Insulation questions, answered by experts

Yes, doggie doors, like all entrances, can let both hot and cold air into your home. However, as with any door in your house, you can take steps to weather-strip your pet's entrance to prevent air leaks.

Air sealing isn't necessary for attic insulation, but it's incredibly helpful since it can help you identify and patch any existing air leaks. Failing to find these leaks before adding insulation can render your insulation less effective, leading to higher energy bills and potentially costly repairs down the line.

There are many reasons one bedroom may be hotter than the rest of the house. The sun will quickly heat a south-facing bedroom with a large window, especially if it lacks quality curtains. If the room has poor insulation, this could let more warm outside air in. Upstairs bedrooms are often hotter than ground-floor rooms because heat rises. Finally, rooms further away from the air conditioning unit may heat up a lot if the system is not properly balanced.

Insulation prevents heat transfer, which keeps your home cool in summer and warm in winter. Regulating the temperature in your home is not only more comfortable for you, but will lower your heating and cooling bills—it’s a win-win. Make sure to determine the correct amount of insulation to ensure it is enough for your home and climate.

Single-pane windows might let in the cold, but if you’re not ready for a long-term solution or window replacement, there are quick fixes to keep your space warmer. Start by sealing gaps with weatherstripping or caulking around the frame to block drafts. For an extra barrier, apply window insulation film to the glass, trapping an air pocket between the film and the window. Thick curtains or thermal drapes can also help keep the chill at bay. And if you’re in a pinch and looking to get creative, bubble wrap can provide a surprisingly effective layer of insulation—just spritz the window with water and press it on, bubble side in.

The Knoxville, IA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.