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TRUSTED BY SAINT PETERS, MO HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon320
    Verified insulation services reviews

Top-Rated Insulation pros in Saint Peters - 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 Peters, 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 West County Insulation
West County Insulation
5.0(
6
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Saint Peters, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Small jobs welcome

"Why West County Insulation is the Best Choice for Your Insulation Needs When it comes to insulation, quality and professionalism matter—and that's exactly what I received from West County Insulation. Fast and Knowledgeable Service Brandon, who provided the initial quote, was timely, knowledgeable, and thorough. He explained all my options and made sure I understood everything clearly, giving me confidence in my decision. Professional and Efficient Installation The installation team, led by Andrew and Isaac, was efficient and professional. They used drop cloths to protect my home and completed the job quickly without sacrificing quality. The owner even took the time to check in after hearing about a fall I had during the job—demonstrating the company’s commitment to customer care. Great Quality at a Fair Price The insulation quality is excellent, and my home is already feeling more comfortable. With competitive pricing and outstanding service, West County Insulation offers great value for your investment. If you’re looking for reliable, professional insulation services, I highly recommend West County Insulation."
Response time1 day
Response rate100%
16 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 Peters, 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(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Saint Peters, 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%
88 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 Saint Peters, 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

30 neighbors recently requested a quote
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Showing 1-10 of 82
Insulation FAQs, answered by experts

You must redo past insulation service if your energy bills remain high through extreme MO summers and winters. Look for visible settling in blown-in attic materials or returning winter ice dams. Moisture stains, mold growth, and pest infestations all dictate a complete removal and replacement. Crawl space materials showing discoloration or sagging from ground moisture contact also require a total system overhaul.

Helpful?

Watch for sharp utility bill spikes during hot summers and freezing winters in Saint Peters. If your home feels clammy in July or forms ice dams at the roofline in January, you need insulation service. Homes built before the mid-1990s fall below current MO energy standards and require an upgrade. Inspect your attic and crawl space after severe storms to ensure materials remain dry and intact.

Helpful?

Avoid quotes that skip air sealing, as this step is mandatory for proper insulation service in Saint Peters. A professional quote must specify the exact R-value they will achieve and address necessary permits for structural or HVAC modifications. Reject contractors who ignore vapor barrier requirements, fail to assess your existing insulation for contamination, or overlook the impact of attic ventilation on your home.

Helpful?

Proper humidity management is the biggest factor for insulation service longevity in Saint Peters. Contractors must install correct vapor barriers and complete thorough air sealing before adding new materials to prevent moisture damage. Your attic also requires proper soffit-to-ridge ventilation to release excessive summer heat. For crawl spaces, professionals must address ground moisture and drainage to stop water from wicking upward and ruining the installation.

Helpful?

Schedule immediate insulation service if you spot mold, pest damage, or wet materials in your attic or crawl space. You must also act fast if winter ice dams cause water intrusion or if your HVAC system runs continuously during extreme MO weather. General efficiency upgrades or simple attic top-ups can wait until spring or fall, which are the ideal seasons for comfortable and effective installation.

Helpful?

The Saint Peters, MO homeowners’ guide to insulation services

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