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TRUSTED BY NORWALK, IA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon141
    Verified insulation services reviews

Top-Rated Insulation pros in Norwalk - Updated Nov 2026

S & K Insulation Services
4.4(
48
)
Blown-In Insulation - Install or Upgrade

Serving Norwalk, IA and surrounding areas

Approved

In business since 2004

Free estimates

Small jobs welcome

"We have an Older home so some of the construction was differant but Shannon was able to solve any problems and did a great job of Insulating our side walls and the attic. We will now have a warm and cozy home. We can already feel the difference. We are waiting for the first utility bill after this was done to see how much our heating bill goes down. Would highly recommend S and K for insulation services. Dennis J"
Response time11 hrs
Response rate85%
16 neighbors recently requested a quote
SHELMAN FOAM SOLUTIONS LLC
5.0(
6
)
Spray Foam Insulation - Install

Serving Norwalk, IA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work along side having equipment no older than 2022. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.

Response time2 days
11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Patriot Gutters and Insulation LLC
Patriot Gutters and Insulation LLC
5.0(
6
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Norwalk, IA and surrounding areas

Approved

In business since 2025

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! \n

Spray foam insulation
Spray foam insulation
Spray foam insulation
Spray foam insulation
Response time6 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Attic Solutions
Attic Solutions
4.8(
91
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Norwalk, 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 L & L Home Solutions
L & L Home Solutions
4.8(
76
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Norwalk, IA and surrounding areas

In business since 2008

Free estimates

"Abraham and his team, Will and Josh, did a great job of removing old insulation, sealing air leaks and adding new insulation to the attic in my 46 year old home. The old insulation was blocking air flow through the attic and this needed to be addressed, which they did. They were very professional and hard-working. Communication was excellent and everything was well explained and the process photographed. We are glad we hired Abraham for this project!"
Sidewall insulation
Sidewall insulation
Side wall dense pack
Over window
Interior dense pack

+11

Response time1 day
Recommended by94%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 Norwalk, IA and surrounding areas

In business since 2000

Free estimates

Warranties offered

"The installers were careful, courteous, & thorough. They left the premises clean & uncluttered. I can't wait to see the difference in our heating bill. They installed spray foam in the rim joist, a small ceiling in the basement & the walls in a crawl space."
 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
Showing 1-10 of 35
Insulation FAQs, answered by experts

On it own, aluminum siding has a relatively low insulation value (also called R-value); aluminum siding has an R-value of 0.61. However, you can purchase insulated aluminum siding to increase the R-value to between 2 and 5. You can also install additional insulation within your walls to help maintain temperatures within your home. On average, insulation costs $1,825 to install throughout the typical home.

Yes, energy-efficient homes are increasingly desirable in the market.

Yes, crawl space insulation is worth it if installed correctly. Installing insulation in your crawl space will improve the air quality, help stabilize your home's temperature, lower your energy bills, and prevent pests from entering your home. Though you’ll pay more to install insulation initially, the savings you get from installing insulation can help offset those initial costs over time.

Through R-value assessments based on climate and existing insulation.

Adding insulation to ceilings is an excellent way to increase the energy efficiency of your home. If your home's layout is such that you need insulation in the ceilings rather than in the roof, it's likely that at least some insulation already exists in the space. However, each additional inch of insulation you can add boosts the R-value by between 2.2 and 4.2.

The Norwalk, IA homeowners’ guide to insulation services

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