(314) 756-5661
Professional Insulation Services in O’Fallon, MO
Stop the drafts in winter, keep the cool air in come summer, and bring your Missouri energy bills down. Begin with a free attic evaluation from the O’Fallon Koala crew.
Free, no-pressure visit
Same-week installation
Licensed & insured pros
Guaranteed workmanship
Tidy, one-day jobs
Rebate paperwork help
4.9/5 from 581+ verified reviews
Talk to Our O’Fallon Insulation Experts Today
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Residential Insulation Across O’Fallon
Home Insulation
Commercial Insulation
Insulation for O’Fallon Businesses & Builders
Builders, general contractors, and property owners around O’Fallon count on us for large-scale insulation across the St. Louis metro and Metro East. We take on everything from multifamily and industrial to new commercial builds.
Inspection-Ready Work
Documentation and coverage that hold up from rough-in through final inspection.
Single-Source Crew
One trained, insured team from walkthrough and quote to final sign-off.
On-Time Scheduling
Phased to fit your build schedule so insulation never holds up the trades behind it.
Multifamily Buildings
Renovations & Retrofits
Why O’Fallon Chooses
Koala Insulation?
Workmanship warranty on every install
No-cost, no-pressure evaluations & quotes
Guidance on rebates and incentives
Most jobs completed in just one day
A licensed, insured O’Fallon crew
Quieter
Home
Fewer
Drafts
Year-Round
Savings
Proven Work,
Happy Homeowners
Ask around the neighborhood. Hear from homeowners across O’Fallon about their experience with our insulation team.
Upstairs is already feeling more comfortable, and you can tell the home is holding temperature better. The crew was professional, courteous, and took great care throughout the entire process. They explained everything clearly, worked efficiently, and left everything clean when they finished.
Overall, a great experience from start to finish. I’d definitely recommend Koala Insulation to anyone looking to improve their home’s comfort and energy efficiency.
Frequently Asked
Questions
A few of the questions O’Fallon homeowners ask before they book. Don’t see yours? Call (314) 756-5661 or schedule a free quote today.
Get a FREE QuoteHow much should I budget for insulation in O’Fallon?
The cost of an insulation project in O’Fallon comes down to a few things. Attic or wall size, the insulation type you pick, blown-in, fiberglass, or spray foam, and the scope of prep all move the number. Pulling out old material and sealing gaps before we add new insulation can factor in too. You may be able to claim rebates through Ameren and other local utility programs, and we’ll point you to what applies. The honest answer is that we price it after seeing it, with a free evaluation and a written quote for your O’Fallon home.
What type of insulation is best for a O’Fallon attic?
For most O’Fallon homes, blown-in insulation over the attic floor plus air sealing gives you the most comfort for the money, especially with hard winter freezes and long, muggy summers. Loose-fill settles into the odd spots batts can’t cover evenly. Spray foam earns its cost when the roof deck needs sealing or the attic is becoming conditioned space. The honest recommendation comes after we inspect your attic, not from a script.
How much attic insulation does a O’Fallon home need?
Homes in O’Fallon fall in climate zone 4A, and the Department of Energy recommends roughly R-49 to R-60 of attic insulation there. Plenty of the fast-growing subdivisions across O’Fallon come in well under that, often around R-19 to R-30. We measure what you have now during the free evaluation and show you exactly where you stand. Bringing an attic up to spec can also qualify for rebates through Ameren and other local utility programs.
Where do you work besides O’Fallon?
Our service area runs from O’Fallon out to St. Peters, Lake Saint Louis, Wentzville, Dardenne Prairie, and Saint Charles and the towns in between. Give us a call at (314) 756-5661 and we’ll tell you right away if you’re in our area.
How disruptive is an insulation job?
Most jobs are done in a day, and you can go about your day at home during blown-in work. Spray foam calls for leaving the home for around a day while it cures and off-gasses. We go over all of that with you up front, before the work is scheduled.
Ready for a quieter, more comfortable home?
Schedule a free, no-pressure evaluation now. We’re booking O’Fallon homes this week.
Get a FREE Quote