(314) 756-5661
Professional Insulation Services in Wentzville, MO
Cut your bills, keep the warmth in during icy Missouri winters, and beat the summer heat and humidity. Start with a FREE on-site evaluation from Wentzville’s trusted insulation team.
Free, no-pressure visit
Same-week appointments
Trained, insured installers
Workmanship guarantee
Clean, 1-day service
Utility rebate assistance
4.9/5 from 581+ verified reviews
Talk to Our Wentzville Insulation Experts Today
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Home Insulation for Wentzville Homeowners
Residential Services
For Your Business
Commercial Insulation for Wentzville Properties
From GCs to facility managers, teams in Wentzville and across the St. Louis metro and Metro East rely on our crews for commercial-scale work. We cover apartments, warehouses, offices, retail, and new-construction shells.
Inspection-Ready Work
Documentation and coverage that hold up from rough-in through final inspection.
Energy Code Compliance
Insulation specified to meet your project’s R-value and energy-code requirements.
Minimal Disruption
Clean, contained work that keeps an occupied building running while we insulate.
Office & Retail
New Construction
Why Neighbors Choose
Koala Insulation?
A workmanship warranty stands behind our work
Free evaluations with a written, itemized quote
Guidance on rebates and incentives
Most installs done in a single day
A licensed, insured Wentzville crew
Quieter
Home
Lower
Energy Bill
Superior
Comfort
Our Promise is
Your Comfort
Let the reviews speak. See what Wentzville families say after their insulation was finished.
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
Before you book, here is what Wentzville homeowners usually want to know. Still have a question? Reach us at (314) 756-5661 or book a free evaluation.
Get a FREE QuoteHow much does insulation cost in Wentzville?
What you’ll pay for insulation in Wentzville depends on the job in front of us. The big ones are how much area we’re covering, the type of insulation you choose, whether that’s blown-in cellulose, fiberglass, or spray foam, and how much prep the job takes. You may be able to claim rebates through Ameren and other local utility programs, and we’ll point you to what applies. That’s why every quote is on-site, written, and itemized, so you see exactly what you’re paying for before anything starts.
What’s the best attic insulation for Wentzville?
For most Wentzville 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 makes sense when you’re sealing the roof line or finishing the attic as living space. Which one is right depends on your attic, so we look first and advise second.
How thick should my Wentzville attic insulation be?
For climate zone 4A, where Wentzville sits, the Department of Energy recommends attics at about R-49 to R-60. A lot of the new-construction neighborhoods expanding around Wentzville were built with far less, commonly R-19 to R-30. The free evaluation includes measuring what’s up there now so you know the real number. Topping up to the recommended level may also qualify for rebates through Ameren and other local utility programs.
Do you serve my neighborhood near Wentzville?
Besides Wentzville, we regularly work in O’Fallon, Lake Saint Louis, Foristell, Dardenne Prairie, and Flint Hill and the surrounding neighborhoods. Not sure if you’re in range? Call (314) 756-5661 and we’ll confirm in about a minute.
How long will my insulation project take?
Most jobs are done in a day, and you can go about your day at home during blown-in work. The one exception is spray foam, which needs about 24 hours of cure time with the house empty. We confirm which path fits your home during the free evaluation, well before install day.
Ready to lower your energy bills?
Start with a free evaluation and a written quote. The Wentzville calendar is open for same-week visits.
Get a FREE Quote