Professional Insulation Services in Kirkwood, MO

Cut your bills, keep the warmth in during icy Missouri winters, and beat the summer heat and humidity. Begin with a free attic evaluation from the Kirkwood Koala crew.

FREE attic evaluation

Same-week appointments

Licensed, insured team

Guaranteed workmanship

Clean, 1-day service

Rebate-eligible upgrades

(314) 756-5661

4.9/5 from 581+ verified reviews

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Commercial & New Build

Commercial & New-Construction Insulation in Kirkwood

Commercial property owners and GCs throughout Kirkwood and the St. Louis metro and Metro East count on us for large-scale insulation. We take on everything from multifamily and industrial to new commercial builds.

Minimal Disruption

Clean, contained work that keeps an occupied building running while we insulate.

Right Product, Right Space

Spray foam, blown-in, or batt chosen for each assembly in the building.

Energy Code Compliance

Insulation specified to meet your project’s R-value and energy-code requirements.

Request a Commercial Quote

Why Choose

Koala Insulation?

Every install backed by a workmanship warranty

No-cost, no-pressure evaluations & quotes

Rebate paperwork handled for you

One-day service on most homes

A licensed, insured Kirkwood crew

Lower
Energy Bill

Year-Round
Savings

Superior
Comfort

Your Satisfaction is

Our Top Priority

Don’t just take our word for it. Local customers share what it was like to work with our Kirkwood team.

Koala Insulation of Gateway West & Metro East IL place picture
4.9
Based on 581 reviews
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Joseph Beaubien profile picture
Joseph Beaubien
22:18 15 Jul 26
Amazing experience. Koala came out in the blistering heat to help assess our very old attic insulation and not only gave a quote but spent the time answering our questions and educating us on the science behind the process. We had a second floor that was unlivable in the summer months for years. Just a few days after the new R-60 insulation our second floor is easily 15-20 degrees cooler even in the hottest day. I couldn’t be more greatfull for the prompt professional service and installation. Would highly recommend! Thanks Joe and team!!
Andrew Carver profile picture
Andrew Carver
21:06 13 Jul 26
Josh and CJ were great. They were right on time, efficient, professional, and Josh answered all of our questions. I especially appreciated Josh’s knowledge of the end-to-end process for Koala (and Ameren!).
D M profile picture
D M
16:05 15 May 26
This company does quality work! We have a 1930s house with a big squirrel issue in the attic. In addition to other repairs, we needed old insulation removal, enzyme cleaner applied, air sealing, and new insulation. They did all of this and took pictures every step of the way to update me. These guys had a very long day, but were extremely nice and hard-working. If I had to go through this process again, this is who I’d pick in a heartbeat .
Dan Shern profile picture
Dan Shern
14:56 14 May 26
We recently had Koala Insulation blow insulation into our attic and install a Draft Master, and the difference has been noticeable immediately. They also sprayed Attic Fresh throughout the attic, and it honestly made the whole space feel like a brand new build.

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.
Ken Kriegshauser profile picture
Ken Kriegshauser
15:19 20 Apr 26
I found Koala Insulation through the Ameren/Spire Pays program. We needed a lot more insulation up in the attic to help with our comfort in the house. Josh and crew came on time and were great to work with. They took care working in the house. They put down plastic on the floors where they were running their tube. At one point their tube sprung a leak outside in the yard. They took the time to vacuum up all the stuff that blew into the yard to make it look good. They answered all my questions and even made a few suggestions that I could do to help with my attic in the future. I would highly recommend them.

Frequently Asked

Questions

Straight answers to the questions we get most around Kirkwood. Not covered here? Ring (314) 756-5661 or set up your free evaluation.

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How much does insulation cost in Kirkwood?

The cost of an insulation project in Kirkwood comes down to a few things. 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. If old or damaged insulation needs to come out first, or the attic is tight to work in, that adds to the scope. Upgrades like this often qualify for rebates through Ameren and other local utility programs, and we’ll help with the paperwork. 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 Kirkwood?

For most Kirkwood 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. That combination closes the air leaks and thin spots batts usually leave behind. Spray foam earns its cost when the roof deck needs sealing or the attic is becoming conditioned space. Which one is right depends on your attic, so we look first and advise second.

How thick should my Kirkwood attic insulation be?

Kirkwood sits in climate zone 4A, where the U.S. Department of Energy recommends about R-49 to R-60 for attics. It’s common to find the historic railroad-era homes along Kirkwood’s tree-lined streets sitting at only R-19 to R-30, well short of the target. We’ll measure your existing insulation on the visit and lay out the gap in plain terms. Bringing an attic up to spec can also qualify for rebates through Ameren and other local utility programs.

Do you serve my neighborhood near Kirkwood?

Our service area runs from Kirkwood out to Webster Groves, Des Peres, Sunset Hills, Glendale, and Oakland and the towns in between. Not certain you’re covered? A quick call to (314) 756-5661 settles it.

How long will my insulation project take?

For blown-in insulation, plan on about a day, and there’s no need to leave your home. Spray foam is the exception, since you’ll need to be out of the house for roughly 24 hours while it cures. You’ll know which situation fits your project before we ever book a date.

Ready to put your attic to work?

Schedule a free, no-pressure evaluation now. Same-week slots are filling up across Kirkwood.

Get a FREE Quote