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TRUSTED BY GRANITE CITY, IL HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon33
    Verified insulation services reviews

Top-Rated Insulation pros in Granite City - Updated Nov 2026

Avatar for Foam Co Insulation
Foam Co Insulation
5.0(
29
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Granite City, IL and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"FoamCo recently insulated our basement walls. Before, we couldn’t use the basement in the winter time. We noticed an immediate difference once the insulation went in, and now our basement is our favorite cozy hangout spot in the house. They were great at explaining exactly what kind of insulation I needed and were actually the best priced bid we got."
Crew and Truck setting up Outside House
What a portion of the attic looked like after install.
Spray Foam
Additional Photos
Blown Fiberglass

+15

Response time2 days
Response rate100%
21 neighbors recently requested a quote
Avatar for Hawx Insulation-St. Louis
Hawx Insulation-St. Louis
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Granite City, IL and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

Recommended by75%of homeowners
Avatar for Good Attic, LLC
Good Attic, LLC
5.0(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Granite City, IL and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

Good Attic of Saint Louis removes old, dirty or pest-contaminated attic insulation and replaces it with fresh blown-in insulation to R-49 or R-60. Jobs can include air sealing, sanitizing after rodents, squirrels or raccoons, and attic ventilation fixes. We also top off attics that are simply under-insulated. We serve St. Louis and St. Charles counties, including St. Charles, St. Peters, O'Fallon, Chesterfield, Ballwin and Kirkwood. Free attic inspection with photos and a written scope, and same-week appointments.

Response time2 days
Response rate100%
85 neighbors recently requested a quote
Avatar for The Attic Yettis
The Attic Yettis
5.0(
7
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Granite City, IL and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I hired the attic yetis to replace insulation in my attic and I was more than happy with the outcome. The service was quick and efficient and just a few days in I am already noticing a major difference. If you need any attic insulation or pest prevention I highly recommend the attic yetis"
Full attic remediation
Full attic remediation
Full attic remediation
Full attic remediation
Full attic remediation

+37

31 neighbors recently requested a quote
Avatar for Healthy Home Pest Control & Services
Healthy Home Pest Control & Services
4.4(
387
)
Blown-In Insulation - Install or Upgrade

Serving Granite City, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The insulation job for my home attic was completed as scheduled. I was very pleased with the work as promised by Healthy Home Pest Control. The work quality met my expectations and I feel the value was excellent."
New Trucks
Duct Cleaning Trailers
New Sign
Response time9 hrs
Response rate95%
503 neighbors recently requested a quote
Avatar for St Louis Insulation
St Louis Insulation
4.9(
67
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Granite City, IL and surrounding areas

In business since 2001

Free estimates

Credit card accepted

"Chris with St. Louis Insulation went above and beyond, he dispatched Brian out to inspect our insulation as we thought it was getting wet on the same day we called. Ultimately it was determined we did not have an issue. If an issue ever does come up we will be calling Chris with St. Louis Insulation. Thanks, Russ"
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+40

Recommended by98%of homeowners
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Insulation FAQs, answered by experts

While there are many different kinds of insulation, spray foam, blown-in, foam board, and batt and roll are the four types you’re most likely to see. That doesn’t mean they’re alike, though. Each one varies drastically in terms of cost, materials used, and how they’re installed—not to mention, how well they limit heat transfer.

Yes, proper insulation in your attic or ceiling can help prevent ice dams. When attic spaces are too warm, they cause the snow on the roof over those areas to melt more quickly than the rest of the roof and then travel downward to a colder section of the roof where they refreeze. If less heat is allowed to escape from underneath the roof, snow will melt at a more consistent rate, making ice dams less likely.

Yes, you can install insulation over ductwork, and doing so can save you money. Without insulation, the HVAC unit must work harder to force warm or cool air around the home, and once the air reaches the vent, it may not be the correct temperature. Insulating HVAC ducts makes your system work more efficiently, saving you money on heating and cooling bills.

Because of the moisture concern, open-cell foam requires a vapor barrier. The barrier protects against high humidity and moisture exposure in rooms such as basements, bathrooms, or exterior walls. It wouldn't be necessary in dry interior spaces.

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

The Granite City, IL homeowners’ guide to insulation services

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