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TRUSTED BY SAINT LOUIS, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon92
    Verified insulation services reviews

Top-Rated Insulation pros in Saint Louis - Updated Nov 2026

Avatar for Aladdin Insulation of Missouri
Aladdin Insulation of Missouri
4.8(
44
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Saint Louis, MO and surrounding areas

Approved (Corporate)

In business since 1928

Free estimates

Warranties offered

"This firm did a great job for me. They were very prompt did what they said they would do. Added insulation to the Attic to get up to R 49. They fixed a few baffles in the Attic as well. Cleaned up after themselves. The pricing was very competitive. No hassles or strong arm salesmen. I would strongly recommend them for blown in insulation work. Jason was very professional in his handling of this project."
INSULATION
FOAM
BATTS
OUR BUSINESS
OUR BUSINESS!

+1

Response time1 day
Response rate89%
7 neighbors recently requested a quote
Avatar for Foam Co.
Foam Co.
4.8(
21
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Saint Louis, MO and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"One of the best experiences we've had with work done in our home. Zac and the team from Foam Co went above and beyond for our project - removing the old insulation from our attic and installing new insulation. They arrived exactly at the agreed on time, took care to protect our home from any mess or damage, and completed the entire project in just a few short hours. All of the team members were polite and kind. They went above and beyond to clean up at the end of the project and to make sure we were satisfied with their work. We will absolutely hire them again in the future!"
Box Truck
Spray Foam w/ Scaffolding
Techs Spray Foam
Blow In Insulation
Fiberglass Blow

+7

Response time1 day
Response rate93%
Recommended by94%of homeowners
Avatar for The Attic Yettis
The Attic Yettis
5.0(
11
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Saint Louis, MO 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

32 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 Saint Louis, MO 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(
6
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Saint Louis, MO 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
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Showing 1-10 of 76
Insulation FAQs, answered by experts

In St Louis, homeowners often overlook sealing attic air leaks before adding insulation, which can lead to drafts and moisture issues. Using the wrong R-value for our climate or compressing insulation around old brick walls and knob-and-tube wiring are frequent errors. Blocking soffit vents is another common mistake, reducing attic ventilation and increasing the risk of mold in our humid summers.

Helpful?

In St Louis, combining insulation with air sealing, HVAC system improvements, or roof replacement is a smart strategy for maximizing energy efficiency and comfort. Many contractors offer bundled services, and tackling multiple upgrades at once can streamline the process. You may also qualify for local rebates or tax credits, making it easier to improve your home’s performance in our variable climate.

Helpful?

St Louis homeowners should consider our humid summers, frequent storms, and the temperature swings between seasons. Many older homes may have lead paint or asbestos, which require special handling during insulation projects. If your property is in a historic district, check for any guidelines that could affect your options. Local utility rebates and federal tax credits can help offset the cost of energy-efficient upgrades.

Helpful?

For basic insulation service in St. Louis, keep a moisture meter and flashlight on hand to inspect your vapor barriers. Because the city experiences severe freeze-thaw cycles and high summer humidity, you must regularly check for shifted materials and damp spots. Keep a ruler to measure material depth to ensure your home meets local R-value requirements. Always wear a protective mask and gloves when checking attics or crawl spaces.

Helpful?

St Louis homes built before 1980, especially those with brick exteriors or located in historic neighborhoods, often lack adequate attic insulation. Signs like uneven room temperatures, persistent drafts, or high energy bills suggest your home could benefit from an energy audit and insulation upgrade. Checking insulation depth in the attic or walls is a quick way to spot if improvements are needed.

Helpful?

The Saint Louis, MO homeowners’ guide to insulation services

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