Trusted San Mateo Sewer Ejector Pump Repair & Installation

In San Mateo, any bathroom, laundry, or fixture located below the main sewer line needs a sewer ejector pump
to move wastewater up to the building drain. Gravity alone won’t do the job — which is why sealed basins,
properly sized pumps, and venting are so important. Our licensed plumbers design systems that match your
fixture load, lift height, and pipe size, so the pump cycles efficiently without short‑cycling or excessive
noise. We also ensure gas‑tight lids, check valves to prevent backflow, and code‑compliant air venting for
safety. For ADUs and basement remodels in San Mateo, our approach starts with an on‑site assessment. We
confirm clearances, electrical supply, and routing for discharge lines. Then we recommend options — from
rugged cast‑iron pumps to quieter, energy‑efficient models — and explain the trade‑offs in head pressure,
gallons‑per‑minute performance, and durability. If your existing basin is undersized or not vented correctly,
we can retrofit a new sealed basin with an external check valve and a serviceable union for future
maintenance. Every installation ends with a full system test: we run fixtures, verify pump activation, check
valve operation, and confirm air‑tight seals. Older homes in San Mateo sometimes inherit DIY ejector setups
that mix storm water or lack backwater protection. Those shortcuts create odors, premature pump failure, and
even sewer backups. We correct these issues by separating drains correctly, adding cleanouts, and using
schedule‑rated discharge piping. Where appropriate, we’ll perform a camera inspection of downstream lines to
ensure there are no hidden restrictions that would overwork your new pump. Documentation, permits, and
inspection coordination are all part of our service. Reliability matters. We stock service parts, offer 24/7
emergency support, and provide maintenance plans for San Mateo property managers and HOAs. Expect tidy work
areas, careful concrete cutting (when needed), and professional patching. We finish by reviewing operating
tips — like what not to flush, how alarms work, and when to call for service — so your system stays dependable
for years.