Can I flush the toilet during a septic backup?

No. Every flush adds water that has nowhere to go. Hold off on all water use until a septic company has found and fixed the problem.

Will pumping the tank fix a backup?

Often it gets the house draining again, but it may not fix the cause. If the drain field or a pump has failed, the tank will refill and the problem will return, so ask for a diagnosis along with the pumping.

Should I call a plumber or a septic company?

If only one fixture is slow, a plumber may clear the clog. If several drains are slow or backing up, or there is an alarm or odor near the tank, call a septic company.

Does fixing a septic emergency need a permit?

Pumping and small repairs usually do not. Larger repairs and drain field or tank replacement often do. Check with the St. Charles County health department, or ask the septic company to handle permits for you.

Emergency Septic Service in St. Charles, MO

Septic emergencies usually show up as a backup in the lowest drain, a sewage smell that will not go away or a high water alarm. Each of these means wastewater has nowhere to go, and it will only get worse with more water use.

Use the form or call to reach a local septic company working in St. Charles. Tell them what you are seeing so they can bring the right equipment on the first trip.

Limit the damage while you wait

The fastest way to limit damage is to stop adding water. If sewage has reached a floor, keep people out of the area, open windows for air and avoid using fans that spread odors through the house. Take photos for your insurance company before cleanup starts, then call a septic company.

Why septic systems back up

Wastewater backs up when it cannot move forward. That can happen at the pipe leaving the house, inside the tank, at the outlet filter or out in the drain field. A single slow drain usually points to a clog near that fixture. Every drain slowing at once points to the tank or beyond. The technician's job is to find which part stopped flowing and fix that, not just empty the tank.

If your septic alarm is going off

An alarm on a pump chamber or aerobic unit usually means the water level is too high. Many alarms have a silence button; press it, then cut back on water use. Check that the pump's breaker has not tripped. If the alarm comes back on after a few hours, the pump, float switch or control panel may have failed and needs service. Do not open the pump chamber yourself, since it contains wastewater and electrical equipment.

What to expect when the truck arrives

Expect the technician to start at the tank, not inside the house. Pumping usually relieves the backup right away, and the crew will then look for the cause: a clog, a broken part or a field that is no longer draining. Ask them to explain what they found before any larger repair is scheduled.

Avoiding another septic emergency

Regular pumping, an effluent filter cleaned at each visit, and care about what goes down the drains prevent most emergencies. Fix leaking toilets and faucets, keep roof water away from the tank and field, and know where your tank lid is so a crew can reach it quickly if something does go wrong.

What to ask an emergency septic company

Ask when they can be there and what the trip will cost, including any after-hours or weekend fee. Ask if they will pump the tank and look for the cause on the same visit, and whether they can handle a repair if one is needed. Confirm they serve your address before they head out.

Emergency septic help around St. Charles

Septic emergencies in St. Charles and nearby towns such as St. Peters, Bridgeton, Maryland Heights are often handled by the same local companies that do routine pumping, and many keep a truck available after hours. When you call, give the address, describe what is backing up and mention any alarm so they bring the right equipment.

Local conditions behind septic emergencies in St. Charles

Most mapped soils near St. Charles are rated very limited for septic absorption, so a drain field that is already working hard can back up quickly when something else goes wrong. May is usually the wettest month in St. Charles, and backups tend to rise when the ground stays soaked. About 2 months below freezing each year also bring the risk of frozen lines, especially in shallow pipes or homes left empty.

Local conditions in St. Charles that affect emergency septic service

Among the mapped soils within about two miles of central St. Charles, the USDA soil survey rates 93% as very limited for septic absorption fields, 7% as somewhat limited and 0% as not limited. The most common drainage class is well drained. Soils like these often call for careful system design, such as a larger drain field, a mound or another engineered system, and a site evaluation before any new installation or replacement.

St. Charles averages about 42 inches of precipitation a year, and May is usually the wettest month. Average temperatures stay below freezing for about 2 months a year, with January averaging 29°F, so tank lids and shallow lines benefit from a layer of snow or mulch rather than being cleared bare.

Sources: USDA NRCS Soil Survey (SSURGO), Soil Data Access; NASA POWER long-term climatology. Soil ratings describe mapped soil types near the city center and do not replace a site evaluation of your property.

What the soil around St. Charles means for emergency septic service

By drainage class, the USDA soil survey maps the land around St. Charles as 46% well drained, 28% somewhat poorly drained, 19% moderately well drained, 7% very poorly drained. Backups and wet spots are most common after heavy rain, and with 35% of the soil poorly drained the ground here can stay saturated for days, so it helps to know where your tank lid and cleanout are before you need them.

Source: USDA NRCS Soil Survey (SSURGO), Soil Data Access

Septic companies near St. Charles

These are the septic companies in our directory closest to St. Charles, with straight-line distance. Call any of them directly, or send one request and we will pass it to the best match.

Veterans Environmental Service, Bridgeton, MO, 5.4 mi
Sweenco LLC, Wentzville, MO, 14.4 mi
Bailey Sewer & Water, Granite City, IL, 20.0 mi
A1 Sewage Disposal, Fieldon, IL, 20.7 mi
Simpson Excavating, Fieldon, IL, 22.1 mi
J L Nash's Sanitation & Sewer, Jerseyville, IL, 22.1 mi

Emergency Septic Service in nearby towns

We also cover emergency septic service in these towns near St. Charles:

St. Peters, 4.9 mi
Bridgeton, 5.5 mi
Maryland Heights, 5.9 mi
Hazelwood, 6.4 mi
Cottleville, 8.3 mi
St. Ann, 8.4 mi

About St. Charles, MO

St. Charles is in St. Charles County, Missouri. About 71,800 people live there, across 25.2 square miles of land (about 2,849 per square mile).

Emergency Septic Service questions in St. Charles

Can I flush the toilet during a septic backup?: No. Every flush adds water that has nowhere to go. Hold off on all water use until a septic company has found and fixed the problem.
Will pumping the tank fix a backup?: Often it gets the house draining again, but it may not fix the cause. If the drain field or a pump has failed, the tank will refill and the problem will return, so ask for a diagnosis along with the pumping.
Should I call a plumber or a septic company?: If only one fixture is slow, a plumber may clear the clog. If several drains are slow or backing up, or there is an alarm or odor near the tank, call a septic company.
Does fixing a septic emergency need a permit?: Pumping and small repairs usually do not. Larger repairs and drain field or tank replacement often do. Check with the St. Charles County health department, or ask the septic company to handle permits for you.