Sewage ejector pump replacement cost: pump swap vs. new system
A sewage ejector pump lifts waste from a bathroom, laundry or bar sink that sits below the sewer line, such as a garage-level unit or basement suite. Replacing the pump is a much smaller job than installing a new system. The figures below are national published ranges, not San Francisco quotes.
| Item | National figure | Source |
|---|---|---|
| Ejector pump replacement, average (national) | $2,300 | (Angi, Checked Oct 13, 2026) |
| Ejector pump replacement, range (national) | $630–$4,300 | (Angi, Checked Oct 13, 2026) |
| Replace existing pump (national) | $850–$3,000 | (HomeGuide, Checked Oct 13, 2026) |
| Install a new system (national) | $2,000–$5,500 | (HomeGuide, Checked Oct 13, 2026) |
| Pump unit only (national) | $150–$2,000 | (HomeGuide, Checked Oct 13, 2026) |
| Whole system with new pit and sewer line (national) | $2,500–$3,100 | (Angi, Checked Oct 13, 2026) |
Signs the pump is failing
Angi lists strange noises, a pump that cycles constantly, and dirty water coming up into a bathroom or washing machine as signs it is time for a new pump (Angi, Checked Oct 13, 2026). A high-water alarm going off, or a sewage smell near the basin, also deserves a plumber's visit. If waste is already backing up, follow our sewer backup emergency steps first and stop running water in that part of the house.
Pump problem or sewer problem?
An ejector pump only serves the fixtures below the sewer line. If drains on upper floors are slow too, or water rises in a garage floor drain, the blockage may be in the building sewer or lateral instead. A plumber can check the pump and run a camera inspection before quoting a new pump.
What changes the price
- Pump material. Angi lists average pump prices of $325 for plastic, $440 for plastic and cast iron, $525 for stainless steel and $1,100 for cast iron (Angi, Checked Oct 13, 2026).
- Capacity. Angi's table runs from about $200 for a 50 gallon-per-minute pump to $1,750 for a 190 gallon-per-minute pump (Angi, Checked Oct 13, 2026).
- Swap or new system. HomeGuide puts labor at $700 to $1,000 for a basic replacement and $1,850 to $3,500 for a new installation, because new systems mean cutting and re-pouring concrete (HomeGuide, Checked Oct 13, 2026).
- Pit and piping. Angi says replacing the whole system, including a new pit and sewer line, costs $2,500 to $3,100 (Angi, Checked Oct 13, 2026).
- Permits. Angi says to plan for local building permit fees (Angi, Checked Oct 13, 2026). In San Francisco, ask whether the plumber pulls the permit from the Department of Building Inspection.
How long a pump lasts
HomeGuide says ejector pumps last 7 to 10 years on average and can reach 20 to 30 years with regular inspections and proper use (HomeGuide, Checked Oct 13, 2026). Keeping wipes, grease and other non-flushables out of the fixtures that drain to it is the cheapest way to get there; our clog prevention guide lists what to keep out of drains.
Questions to ask before you sign
- Is this a straight pump swap, or does the basin, check valve or vent need work too?
- What pump material and capacity are you quoting, and why that size?
- Is a high-water alarm included?
- Who pulls the permit, and is the fee in the price?
- What is the written warranty on the pump and the labor?
Related costs and guides
For groundwater pumps rather than sewage, our sister site has a sump pump repair cost guide. If water is already on the floor, see what to do in a leak emergency.
FAQ
How much does it cost to replace a sewage ejector pump?
Angi puts professional ejector pump replacement at $2,300 on average nationally, with totals from $630 to $4,300 (Angi, Checked Oct 13, 2026). HomeGuide lists $850 to $3,000 for a pump replacement (HomeGuide, Checked Oct 13, 2026).
Why does a new ejector system cost so much more than a pump swap?
HomeGuide says a new installation means breaking up concrete, adding plumbing and pouring concrete again, so labor runs $1,850 to $3,500 against $700 to $1,000 for a basic replacement (HomeGuide, Checked Oct 13, 2026).
How long does a sewage ejector pump last?
HomeGuide says ejector pumps last 7 to 10 years on average, and 20 to 30 years with regular inspections and proper use (HomeGuide, Checked Oct 13, 2026).
Is an ejector pump the same as a sump pump?
No. HomeGuide explains that an ejector pump moves wastewater from a basement bathroom or laundry up to the sewer or septic tank, while a sump pump moves groundwater out of a basement to prevent flooding (HomeGuide, Checked Oct 13, 2026).
Does an ejector pump need maintenance?
Angi suggests budgeting $150 to $200 for an annual plumber inspection (Angi, Checked Oct 13, 2026). Only toilet paper should go down a toilet that drains to the pump; wipes clog it.
Sources
- Angi: How Much Does an Ejector Pump Replacement Cost? [2026 Data], updated Aug 9, 2026 (national), Checked Oct 13, 2026
- HomeGuide: How Much Does an Ejector Pump Cost? (2026) (national), Checked Oct 13, 2026
National figures come from published 2026 cost guides, not San Francisco quotes. Prices in San Francisco can be higher. Always get written quotes.