Sewage ejector pump service in Saint Paul, MN
When a basement bathroom or laundry sits below the sewer line, a sewage ejector pump lifts the waste up and out. If it stops, those drains back up fast. We repair, replace and service them.
- Phone answered 24/7
- Saint Paul office on E 7th Street

Tell us what you see and hear. We explain the visit and the likely cost on the phone. (651) 215-2087
The short answer
A sewage ejector pump sits in a sealed basin below basement fixtures and pumps waste up to the main sewer line. When it fails, basement drains back up and the room smells. We diagnose the float, motor, check valve and vent, clear clogs, and repair or replace the pump. Typical Saint Paul repairs run $287 to $593, and full replacements cost more.
When sewage ejector pump service cannot wait
Sewage smell near the basement bathroom
A cracked lid seal, dry vent or failing gasket lets sewer gas into the room. The odor usually shows up before any backup does.
Basement toilet or shower draining slowly
If upstairs drains are fine but the basement ones are sluggish, the ejector may be clogged or struggling to empty the basin.
The alarm is going off
A high-water alarm means the basin is filling without being pumped out. Stop using basement fixtures until it's fixed.
Pump runs constantly
A stuck float or a check valve letting waste fall back can keep the motor running, which burns it out quickly.
Water around the basin lid
Wet floor near the lid points to a basin that overflowed or a seal that failed. Avoid contact with the water.
Gurgling or loud clunks
Unusual noise on each cycle can mean a worn impeller, a slamming check valve or a vent problem.
How a sewage ejector differs from a sump pump
A sump pump moves clear groundwater out of the house. A sewage ejector moves toilet waste, shower water and laundry water up into the main sewer line. Because it handles solids, an ejector has a stronger motor, a larger outlet, and a sealed basin with a gas-tight lid and a vent pipe to the roof or an approved vent connection.
They're not interchangeable. A sump pump in a sewage basin will clog and fail, and an open sump pit can't legally hold sewage. If you're not sure which pit is which, the sealed lid with pipes and a vent coming out of it is the ejector.
Some basement bathrooms use an up-flush toilet instead, a compact unit that sits behind or under the toilet and macerates waste before pumping it. Those serve one or two fixtures well, but they work harder and need gentler use than a full ejector basin. We service both and can tell you which one is in your basement.
How we handle sewage ejector pump service once we arrive
Stop the flow
We ask you to stop using basement fixtures, cut power to the pump, and check for any sewage outside the basin.
Open the basin safely
We remove the sealed lid with ventilation in place and pump down the basin so we can see the equipment.
Diagnose the fault
We test the float, switch and motor, and inspect the impeller, check valve and vent connection.
Clear or repair
We remove clogs, clean the float, replace failed parts, or pull the pump if it needs replacement.
Reseal the basin
New gaskets go on the lid and penetrations so sewer gas stays inside where it belongs.
Test with real fixtures
We flush, run the shower or washer, and watch the pump cycle and shut off before we leave.
What sewage ejector pump service costs in Saint Paul
Typical Saint Paul ranges for ejector pump work. We confirm the price after we've opened the basin and found the problem.
| Job | Typical range |
|---|---|
| Clear a clogged ejector and testIncludes pump-down and cleaning | $287 to $593 |
| Float, switch or check valve replacementPlus lid gasket if needed | $247 to $517 |
| Ejector pump replacementStandard or grinder pump | $1,170 to $2,290 |
| High-water alarm installationAudible alarm with float | $187 to $343 |
What moves the price
- Pump type (standard ejector or grinder) and horsepower
- How much the basin needs to be cleaned out
- Vent condition and access to it
- After-hours or weekend timing
- Basin location in a finished room
Typical Saint Paul ranges. We confirm your price after we see the job and before work starts. See every price on one page.

What usually breaks inside an ejector basin
Most ejector calls come down to a handful of causes. The pump itself is tough, but it lives in a harsh place, and anything flushed down a basement toilet ends up in the basin with it. Floats get fouled with grease, and items that shouldn't be flushed wrap around the impeller.
The vent matters too. If the vent pipe is blocked or was never installed right, the basin can't breathe, drains gurgle and the pump struggles. We check the vent on every service call.
- Wipes, paper towels and hygiene products jamming the impeller
- Grease and soap scum coating the float so it can't rise
- A worn check valve letting waste fall back into the basin
- Failed lid gaskets or seals around pipe penetrations
- A tripped breaker or GFCI that leaves the pump without power
Safety first when a basement ejector backs up
Sewage carries bacteria, so avoid contact with any water that came from the basin or the basement drains. Keep kids and pets out of the area, and don't run water anywhere in the house that drains to the basement fixtures. If water reached outlets or cords, leave the breaker off.
Don't open a sealed ejector basin yourself. The lid holds back sewer gas, and the pump is wired for wet conditions. Call (651) 215-2087 and tell us what you're seeing. We'll walk you through what's safe to do while we're on the way, including shutting down the fixtures that feed the basin.
When it's time to replace the ejector pump
If the motor is burned out, the pump has failed more than once in a short time, or the housing is cracked, a replacement is usually the better spend. Ejector pumps come in different horsepower ratings and with or without grinder blades. We match the new pump to the fixtures it serves and how high it has to lift waste to reach the sewer.
Replacement is a good time to swap the check valve, add a union for easy service, replace a tired lid gasket and install a high-water alarm if there isn't one. We use pumps from makers like Zoeller and Liberty Pumps, chosen for the job rather than the cheapest option on the shelf.
Ejector pumps in Saint Paul basement bathrooms and laundries
Many Saint Paul homes have a sewer line that leaves the house a few feet above the basement floor. That's common in older houses in Frogtown, Merriam Park and the West Seventh area, where basements were finished decades after the houses were built. Any toilet, shower or laundry added down there has to be pumped up, and that pump has often been running for years without anyone thinking about it.
In newer suburbs like Eagan and Inver Grove Heights, a lot of walkout and lookout basements came with roughed-in ejector basins from the builder. Some were finished later with whatever pump was handy. We see ejectors that are undersized for the fixtures on them, missing alarms, or vented in ways that cause drains to gurgle.
Where we do sewage ejector pump service
Saint Paul and the surrounding east metro. These are the busiest ZIP codes on our board; the full list has 55 neighborhoods, cities and counties.
Questions about sewage ejector pump service
What can I safely flush into a basement toilet with a sewage ejector?
Only toilet paper and human waste. Wipes, even ones labeled flushable, paper towels, dental floss and hygiene products wrap around the impeller and jam the pump. Grease poured down a basement sink also coats the float. Keeping those out of the basin prevents most ejector failures we see.
How long does a sewage ejector pump usually last in a Saint Paul home?
Many last ten years or more with reasonable use. Basins that get wipes or grease, or pumps that run constantly due to a bad check valve, fail sooner. If yours is older and starting to struggle, a planned replacement is easier than an emergency one on a Saturday night.
Why does my basement bathroom smell like sewer gas near the ejector basin?
Usually a lid gasket has failed, a penetration seal is cracked, or the vent pipe is blocked. A floor drain with a dry trap nearby can also be the source. We check the basin seals and vent first, then the traps around it, so the odor gets fixed instead of covered up.
Can I keep using my basement fixtures while the ejector alarm is sounding?
No. The alarm means the basin is near full and not being pumped out. Every flush or shower adds to it until it overflows onto the floor. Stop using those fixtures, keep upstairs water use light, and call us. Upstairs fixtures that drain by gravity are usually still fine.
Jobs that often go with sewage ejector pump service
Brands we work on in Saint Paul homes
- Kohler
- Moen
- Delta
- American Standard
- Rheem
- A. O. Smith
- Bradford White
- Navien
- Rinnai
- InSinkErator
- Zoeller
- Liberty Pumps
- Watts
- Weil-McLain
Call the Saint Paul office, day or night
A real person picks up at any hour. Tell us what you are seeing, and we will tell you what happens next and roughly what it costs.
(651) 215-2087- Phone
- Answered 24 hours a day, 7 days a week
- Office
- 289 E 7th Street, Saint Paul, MN 55101
- Headquarters
- 50666 229th Ave, Bemidji, MN 56601
- Coverage
- Saint Paul and the east metro, see all areas