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TRUSTED BY O FALLON, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon272
    Verified insulation services reviews

Find Insulation pros in O Fallon

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 O Fallon, MO 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%
20 neighbors recently requested a quote
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 O Fallon, MO and surrounding areas

Approved (Corporate)

In business since 1928

Free estimates

Warranties offered

"Well, the was too much on the second floor but Aladdin solved that with blown insulation. I look forward to the cool savings in the summer and warm savings in the winter. The house has not added insulation since it’s manufacture in 1989. We have been here for 4 years. Should have done it four years ago. Thank you Aladdin!"
INSULATION
FOAM
BATTS
OUR BUSINESS
OUR BUSINESS!

+1

Response time1 day
Response rate89%
5 neighbors recently requested a quote
Hawx Insulation-St. Louis
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving O Fallon, 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

8 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Carico Drywall & Insulation
Carico Drywall & Insulation
4.6(
23
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving O Fallon, MO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I chose Carico Drywall because of his attention to detail, the fact he came out to give me an estimate, and the fact that he uses Union Drywall Installers. He was my 3rd bid in my buildout for my garage, and he was the highest bid by far. But the fact that he came to my house, met with me, explained and asked good genuine questions proved to me that he was the correct person to do the job. My garage is 1500sqft (30 ft deep , 50 ft wide) ceiling height is 18ft. At the peak, its roughly 22ft. I used R21 batting in the walls and 6 to 7 inches of open cell spray foam in the ceiling. The shop was drywalled with 5/16 inch drywall, no real need for anything thicker since the insulation keeps most sound dampened. I didnt tackle the drywall, because I felt like that would have taken me forever. Would i recommend Carico to do more projects? Yes I would."
Staircase
Master Bedroom
Living Room
Living Room
Church

+21

Response time2 days
Response rate85%
25 neighbors recently requested a quote
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 O Fallon, MO and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Good Attic is a trusted attic insulation and home comfort company serving homeowners throughout St. Charles and the greater St. Louis area. We specialize in blown-in insulation upgrades, air sealing, attic cleanouts, and ventilation improvements that solve hot/cold rooms, drafts, high energy bills, and poor airflow. Our team provides honest pricing, same-week appointments, and detailed before-and-after photos so you always know exactly what you’re getting. If you want a cleaner, more comfortable, and more energy-efficient home, Good Attic delivers results you can feel immediately.

Response time2 days
Response rate100%
76 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 O Fallon, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Tim and Jeff were very fastidious in setting up, cleaning, and making sure the house was in good order when they left . We also had an Aeroseal treatment which followed with James and Connor. It did take some time to set up after the vents were cleaned and blown out, but the application of this polymer to close gaps in lthe galvinized steel ducts was remarkable."
New Trucks
Duct Cleaning Trailers
New Sign
Response time9 hrs
Response rate95%
542 neighbors recently requested a quote
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Insulation questions, answered by experts

In O'Fallon, if you notice rooms that are hard to keep comfortable, cold floors in winter, or high energy bills despite recent insulation service, it may be time for a redo. Watch for musty odors, visible mold, or insulation that looks damp or compressed. Ice dams on your roof or attic insulation disturbed by pests are also common local signals that your insulation needs attention.

Helpful?

When hiring in O'Fallon, prioritize contractors familiar with local building codes and Missouri’s weather patterns. Ask about their experience with attic insulation, energy efficiency upgrades, and moisture control. Request written estimates, proof of insurance, and details on cleanup and disposal. Checking recent local references and ensuring clear communication about project timelines can help you choose the right pro.

Helpful?

Homeowners in O'Fallon often overlook attic ventilation, leading to trapped moisture and reduced home efficiency. Using the wrong insulation type or R-value for Missouri’s climate, compressing insulation, or failing to seal air leaks before installation are frequent errors. Blocking soffit vents or placing insulation too close to recessed lighting can also create safety hazards and reduce performance.

Helpful?

In MO, upgrading insulation can impact your HVAC system’s workload, indoor air quality, and even plumbing in exterior walls. Improved insulation may change how your heating and cooling systems operate or affect attic ventilation. Insulation installed near electrical wiring or recessed lighting requires proper spacing. If you notice changes in airflow, humidity, or system efficiency, consult a qualified insulation specialist.

Helpful?

In O'Fallon, you can address minor insulation issues by sealing small air leaks around windows and doors with caulk, or adding insulation sleeves to exposed pipes in unheated areas. Always wear protective gear and keep the area well-ventilated. If you encounter signs of moisture, mold, or rodent activity, or need to work near electrical components, it’s best to contact a local insulation professional.

Helpful?

The O Fallon, MO homeowners’ guide to insulation services

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