Gateway/Services/Sewage cleanup

Sewage cleanup
in St. Louis.

Sewage cleanup in St. Louis is not a wet-carpet problem. Sewer water is Category 3, contaminated, and most of the porous material it soaked cannot be cleaned and put back. We are trained and equipped for that, and we run it as its own protocol.

145+ five-star reviews on our sister co. AirSense BBB accredited IICRC trained Licensed & insured

Gateway technician kneeling on a flooded basement floor, drawing a water extraction wand through standing water beside a submersible pump and discharge hose.

The difference

Why is sewage cleanup different
from clean water damage?

Category 3 water carries a different risk than a burst supply line, so it gets different equipment, different chemicals, different PPE, and different disposal.

Treating a sewer backup like a clean-water flood is a real mistake. Do not try to clean Category 3 water yourself.

The scope

What has to be removed
after a sewage backup?

  • Saturated carpet and pad, which cannot be sanitized back to safe
  • Drywall cut to the appropriate height, twelve inches above the saturation line is standard
  • Soaked insulation and wet base trim
  • Contents inventoried, salvageable items moved to a dry area on drop cloths, unsalvageable items photographed before disposal
Jake, Gateway's owner, standing in front of the company's branded enclosed trailer.

After the tear-out

How a sewage backup
is sanitized and dried

Antimicrobial treatment goes where it will actually do something, not everywhere as performance theater. Basements need it most: concrete and masonry hold moisture and make good mold substrate.

Then air movers and dehumidifiers sized to basement moisture loads, monitored daily until every affected material hits equilibrium.

Gateway technician photographing a water-stained ceiling and wall with a camera, a documentation clipboard under his arm.

Local cause

Why St. Louis basements
take the sewer backflow

Much of the city and the inner-ring suburbs sit on a combined sewer that carries storm and sanitary flow in one pipe. Heavy rain overwhelms it and the backflow finds the lowest opening in the system, which is your basement floor drain.

The prevention is a backwater valve on your main line, typically $1,500–$3,500 installed. We do not install them. We partner with plumbers who do, and we will tell you honestly whether you need one.

Coverage

Why sewer backup coverage
is its own policy rider

Sewer backup usually is not covered by the base policy. It needs a specific rider, and most St. Louis-area policies carry one, though the dollar limits vary. Check your declarations page for “sewer backup” and note the limit.

Category 3 protocol documentation and source-of-loss photos are built into every job, which is usually the difference between an approved claim and a denied one. More on that on our insurance claims page.

Related

When the basement
water was not sewage

Storm water, groundwater, and sump failures are a different category and a different cleanup. Start with basement flooding or sump pump failure cleanup.

Emergency sewage cleanup in St. Louis

Do not clean it yourself. Live phone, twenty-four seven.

Call (314) 947-3419
Call now · 24/7