Gateway/About

Not a new operator.
Just a new name.

Gateway Water and Mold is the water + mold arm of AirSense Environmental, the BBB-rated indoor air quality and radon mitigation company that’s been serving St. Louis for years. Same owners. Same crew. Same standards. Over 145 five-star reviews backing every job we run.

Gateway crew at the back of a service van with organized equipment, parked at a residential job site.

Why we exist

Most restoration companies
don’t earn the second job.

For years, AirSense Environmental was the trusted St. Louis name in indoor air quality and radon mitigation. Hundreds of homeowners called us when they wanted an honest answer about what was in their air. The pattern that emerged: most of those calls started with a water event somebody else handled badly.

Wet basements that turned into mold problems. Insurance claims that dragged on for months because the contractor’s paperwork was wrong. Demo scopes that gutted whole rooms when a smaller scope would have done the job. By the time AirSense got the call, half the budget was already spent fixing the original mitigation contractor’s mistakes.

Gateway exists to do the water and mold work the way AirSense always did the air-quality work, test before you scope, plan before you tear out, and write the insurance file the carrier actually wants. Same operators, same standards, just a name that says specifically what we do.

What we believe

Three things you can hold us to.

Belief 1

Test before tear-out.

The mitigation industry’s biggest sin is gutting rooms on a hunch. We don’t. We test, we read the data, and we tell you what does and what doesn’t need to come out. Sometimes the answer is less than you feared.

Belief 2

The paperwork is the work.

Most claim delays aren’t caused by your carrier. They’re caused by the contractor’s documentation. We treat scope, photos, drying logs, and Xactimate alignment as part of the job, not an afterthought.

Belief 3

You hire us once.

Most restoration outfits never see the homeowner again. We started as the company you call when somebody else’s mitigation failed. We don’t want to be that company anymore, we want to be the first call.

Credentials

What backs every Gateway job.

Ready to talk to a person?

Live phone, twenty-four seven. Or call to schedule an inspection.

Call (314) 555-0123