Sewer Ejector Pump Installation in Annapolis, MD
When a basement bathroom, laundry, or utility sink sits below the level of your building drain, gravity can't move the waste — a sewer ejector pump has to lift it. Heidler sizes, installs, and services them across Anne Arundel County.
Lifting Waste From Below the Sewer Line
Every home's drainage runs downhill to the building drain and out to the sewer lateral. Fixtures installed below that line — a basement bathroom, a laundry, a wet bar, a utility sink in a finished lower level — have nowhere to drain to. A sewer ejector pump solves it: waste collects in a sealed basin, and when the float rises the pump lifts it up to the gravity line where it can leave the house normally.
It is not a sump pump, and the two get confused constantly. A sump pump moves clean groundwater out of a pit to keep your basement dry. An ejector pump moves sewage, which means it needs a sealed basin, a vent, a check valve, and a pump built to pass solids. Installing the wrong one — or an undersized one — produces exactly the problems people call us about: odor in a finished basement, a pump that short-cycles itself to death, or waste that backs up into the fixture it was supposed to serve.
Most of our ejector work comes with a basement finish, an in-law suite, or a below-grade addition, which is why it usually gets designed alongside the drain line excavation rather than after it. If you're planning a lower-level bathroom, the question of whether gravity reaches your building drain is the first thing to settle — it changes the design and the budget more than the fixtures do.
What a Properly Installed System Includes
A correct installation is a system, not just a pump. The basin has to be sized for the fixture load and sealed gas-tight, because it holds sewage in a room people use. It needs a vent so the basin can breathe without pushing odor into the house. It needs a check valve so what gets pumped up doesn't drain straight back down, and a shutoff so the thing can be serviced without draining the basin by hand. We install it as a system and test it under real load before we leave.
We also service and replace pumps that were installed by someone else, and a good proportion of our calls are systems that were never quite right — an unsealed lid, a missing or improperly tied vent, no check valve, or a pump undersized for the bathroom that was eventually built on it. If yours smells, runs constantly, or has an alarm you've learned to ignore, it's worth having looked at before it fails outright.
- Basins sized for the actual fixture load
- Sealed basin and proper venting — no basement odor
- Check valve and service shutoff included
- Solids-handling pumps, not repurposed sump pumps
- Alarm systems that warn before the backup
- Existing systems diagnosed, serviced, and replaced
Family owned since 1947
79 Years Serving Annapolis Homes
Heidler, Inc. has been the name Annapolis and Anne Arundel County families trust since 1947 — three generations of the same family, doing the job right and standing behind it. Call during office hours and you reach a real person, not a phone tree. When we quote, it's a flat rate you approve up front. And every technician we send is background-checked and drug-tested, so you always feel safe with us in your home.
The Plumber Protects the Health of the Nation
- 4.7★
- 988 reviews
- 3
- generations, family owned
- Licensed
- & fully insured
- Vetted
- background-checked techs
Know the warning signs
When to Call for Sewer Ejector Pump Installation
Sewage Smell in a Finished Basement
UrgentAn ejector basin should be sealed and vented. Odor in the room means the lid, the seal, or the vent isn't doing its job — and that's a gas you're breathing.
The Pump Runs Constantly or Won't Shut Off
UrgentA pump cycling far more than the fixtures justify usually has a failed check valve sending the same waste back down, or a float that's no longer reading the basin correctly.
The Basement Fixture Backs Up
UrgentWhen the lower-level toilet or shower backs up while the rest of the house drains normally, the ejector system — not the sewer line — is the thing that failed.
You're Finishing a Basement
Whether gravity reaches your building drain decides the entire design of a lower-level bathroom. Settle it before the framing, not after.
How it works
Straightforward From Call to Cleanup
Establish the Grade
We locate the building drain and its invert depth to confirm whether gravity can reach it at all, because that determines whether you need a pump in the first place.
Size the Basin and Pump
We size for the fixtures the system will actually serve and the height it has to lift, rather than fitting whatever unit is on the truck.
Install as a Sealed System
Basin set and sealed, discharge run with a check valve and service shutoff, vent tied in properly, alarm wired where it belongs.
Test Under Real Load
We run the fixtures and watch the system perform through full cycles before signing off, and walk you through what maintenance it needs.
The Heidler difference
Why Annapolis Trusts Heidler
We Size It for Your Fixtures
Undersized ejector pumps are the single most common cause of the problems we get called back to fix on other people's installs.
Sealed and Vented Properly
A basin in a finished room has to be gas-tight and correctly vented. That's not an upgrade — it's the difference between a system and a hazard.
Serving Annapolis Since 1947
Three generations of Anne Arundel County basements, including plenty near the water where below-grade drainage is never straightforward.
We Fix Other People's Installs
If yours smells, cycles, or alarms, we'll diagnose what's actually wrong rather than defaulting to a full replacement.
The Plumber Protects the Health of the Nation
Questions?
Sewer Ejector Pump Installation FAQs
What's the difference between a sump pump and a sewer ejector pump?
A [sump pump](/sump-pumps) removes clean groundwater from a pit to keep the basement dry. A sewer ejector pump lifts sewage from below-grade fixtures up to your gravity drain line, which means it needs a sealed basin, a vent, a check valve, and a pump designed to pass solids. They are not interchangeable, and using one where the other belongs causes odor, failures, and backups.
Can I put a full bathroom in my basement?
Usually, yes — the question is whether the existing building drain sits low enough for gravity to reach it. Where it does, you drain conventionally. Where it doesn't, an ejector system is the standard answer. We establish which one applies early, because it changes the design and the cost significantly. See [drain line excavation](/drain-line-excavation) for the buried side of that work.
How long does a sewer ejector pump last?
It depends heavily on how hard it works and how well it was installed. A properly sized pump serving a lightly used guest bath lives far longer than an undersized one running a full basement apartment. What shortens them reliably is short-cycling from a failed check valve, and wipes or hygiene products that a solids pump was never meant to pass.
Why does my basement smell even though the pump works?
Almost always the seal or the vent. An ejector basin holds sewage, so the lid has to be gas-tight and the basin has to be vented so it can breathe without pushing air into the room. A cracked lid gasket, a loose bolt-down, or a vent that was never properly tied in will produce odor from a system that otherwise pumps perfectly.
Do I need an alarm on the system?
We recommend one on every install. An ejector failure in a finished basement is a sewage backup into a living space, and the alarm is what gives you warning while it's still a service call rather than a restoration job. It's a small part of the cost of the system.
Where we work
Sewer Ejector Pump Installation Across Anne Arundel County
Need Sewer Ejector Pump Installation? We've Fixed It Since 1947.
Flat-rate pricing, our own Annapolis office on the phone, and technicians you can trust in your home. Call now or schedule online.