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TRUSTED BY BRENTWOOD, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon173
    Verified insulation services reviews

Top-Rated Insulation pros in Brentwood - 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 Brentwood, 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 Brentwood, 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 Brentwood, 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

35 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 Brentwood, 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 Brentwood, 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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Insulation FAQs, answered by experts

While a few icicles on your roof are standard, a large accumulation can be a sign of a bigger problem, such as poor insulation. This is particularly true if you are also dealing with ice dams. If you have numerous large icicles, it is recommended to have a roofing contractor diagnose potential insulation issues and create a plan to solve them.

While insulation is required for all exterior walls in a house, it is not typically required for interior walls. Local and state building codes mandate that new construction homes have adequate insulation in exterior walls and ceilings to suit the local climate.

However, there are several benefits to adding insulation to interior walls. It is excellent for sound-dampening between rooms and can help with temperature control by maintaining a regulated temperature in specific rooms and lowering heat transfer between adjacent areas. Insulating interior walls can also contribute to the overall energy efficiency of your home.

The life span of insulation is between 20 and 100 years. At that time, existing insulation can fall victim to gravity, resulting in compression, which reduces its insulating protection or R-value. If you can't simply add more insulation over the existing material, removing the old to increase the effectiveness of the new can reduce your energy bills and make the project worth the time and money investment.

The primary downside of radiant barriers is their limited effectiveness in cold climates. They are designed to reflect radiant heat, making them less beneficial in cooler conditions where heat retention is more important. 

Radiant barriers require proper installation to maximize effectiveness. Incorrect placement can lead to minimal benefits. They also do not provide insulation, meaning they should be used in conjunction with traditional insulation for optimal energy efficiency. 

Fiberglass is the best insulation for HVAC ducting because it's inexpensive, widely available, versatile, and long-lasting. Fiberglass also offers acoustic insulation in addition to thermal insulation, which can contribute to a more peaceful home environment. You can use other materials like mineral wool, but fiberglass is the industry standard.

The Brentwood, MO homeowners’ guide to insulation services

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