Diagnosed First
Float and check valve checked before recommending pump replacement.
Commercial Sewage & Ejector Pumps In Gaithersburg, MD
Commercial sewage and ejector pump installation, repair and maintenance across Gaithersburg and Maryland since 1993 — specified to commercial duty, with 24/7 cover when one stops.
4.9 from 2,979 Google reviews
30+ Years 30+ Years Serving Maryland
24/7 Service 24/7 Emergency Service
WSSC Licensed WSSC Licensed & Insured
Locally Owned Locally Owned and Operated
Sewage Pump Service in Gaithersburg
Commercial sewage pumps in Gaithersburg
A commercial sewage pump — also called an ejector pump — lifts waste from a property sitting below the sewer line up to meet the public system. Where a building is above the line, gravity does the work; where it is below, the pump is the only thing that does.
Mallick has served Maryland businesses since 1993, and provides installation, repair and maintenance of commercial sewage pumps in Gaithersburg and throughout the state.
Schedule Sewage Pump Service
Tell us what you need — we’ll be in touch fast.
Correct Duty
Specified to commercial duty, because residential-duty units fail early in these applications.
Emergency Cover
24/7 dispatch — a failed pump stops a business rather than inconveniencing it.
Commercial pump down and the building affected? The float fails more often than the pump.
Call (301) 804-6759Worth Knowing
How they work, and why commercial duty differs
The pump works with a storage or septic tank. Waste and wastewater are held there until the pump can move them safely up to the sewer system, which is what allows a below-grade property to function normally.
The commercial difference is duty. A pump serving a below-grade restaurant or a multi-tenant basement handles volumes and solids a residential unit never sees, and specifying a residential-duty pump into a commercial application is the single most common reason these fail early.
Project control
How a commercial pump call runs
There is a wide range of pumps on the market across residential, commercial and industrial applications, and choosing correctly for the demands of the business is most of the job.
Undersize it and the pump short-cycles itself to death while never quite keeping up. Oversize it and it cycles too infrequently to clear the tank properly. We assess the actual load and specify against it rather than against a catalogue.
Diagnosed, not assumed
Float, check valve, discharge and panel checked before the pump is condemned — most faults are not the pump.
Sized to the load
Duty and sizing assessed against the property's actual load rather than the unit that was there before.
Restored fast
Repair or replacement carried out with 24/7 dispatch where the building is affected.
Tested and scheduled
Tested under load, and maintenance scheduled so the next failure is found rather than suffered.
Worth Knowing
What usually fails, and it is rarely the pump
The faults we deal with most are a short list: pumps that will not come on, a stuck float switch, problems with the discharge piping, jammed pumps, clogs, and check valve failures.
Float switches and check valves can produce symptoms similar to pump failure. We diagnose the system first, with commercial emergency technicians available around the clock.
Why Mallick
Maryland Has Trusted Mallick For 30+ Years
WSSC-licensed and insured crews, and warranties in writing: one year on installations, 30 days on repairs. The same standard whether it is a sewage pump call at 2pm or a burst line at 2am.
Google reviews
2,979
4.9 average across Gaithersburg, Frederick and Woodbine
Customer Field Notes
What Customers Remember After The Call
4.9
2,979 Google reviews across three Maryland locations
Field note 01 · Gaithersburg, MD
“Eric and Nick did a wonderful job.”
Very thorough and provided detailed explanation of what was needed to get our garbage disposal up and running.
Abbas and Koli were great technicians.
Quickly diagnosed the issue, thoroughly explained everything, and gave me a few options to move forward. I've had great experiences working with Mallick, highly recommend.
Chrissie Schenkel · Gaithersburg, MD Abbas came to our house for an emergency repair on a Saturday.
He was courteous and kind, he didn’t rush, and he worked hard to fix our problem and thoroughly investigate. It was hard to find a plumber who could do this on a Saturday at the last minute, and we appreciated Mallick’s and Abbas’s willingness.
Raj Nayak · Gaithersburg, MD Abbas Rahimiari was exceptionally professional, looking at our two plumbing problems, describing the underlying issues, fixing one immediately and explaining options on the other. Courteous, clear and efficient. And knowledgeable.
Gordon Schatz · Gaithersburg, MD I had a wonderful experience with Billy.
He was amazing and he was able to fix my issue with no concerns! 10/10! Thank you Billy.
Mia Barker · Gaithersburg, MD Excellent service and support from William Clem and Malick Plumbing.
Had a pinhole leak in a water service line. Found and fixed the problem … thanks so much.
Daryle Seckar · Gaithersburg, MD Roberto and Adelson were great to work with, efficient, and answered all questions. Top service and repair of water heater!
Jonathan Daly · Gaithersburg, MD
Fred and Luka were great!
They took the time to find the issue as well as helping me get opinions on future concerns as a new homeowner! Real experts and will work with them again!
Elijah Wadsworth · Woodbine, MD Abbas and Koli were fantastic.
They quickly identified and resolved our issue, and did a check to ensure there were no other sleeping issues. They were a pleasure to work with, respectful, and kind.
Kelley Barnaby · Gaithersburg, MD I received great service from both Ikem and CJ today.
They quickly identified the leak and fixed the issue. They also did a great job replacing some valves that needed replacing. They were very experienced and efficient. I have used Mallick several times and have always been pleased with their service.
Melissa Cavuto · Gaithersburg, MD Abbas and Erick were professional, knowledgeable and kind.
They inspected and guided me to make safe choices with my range that had a gas leak.
Andrea Huerta · Gaithersburg, MD Abbas and Bryan installed my new water heater.
There was a leak in my furnace and they fixed it also! The job was perfect. They had to install vents that were well done. They left no trace and the house was completely clean. The new water heater works like a charm. HIGHLY RECOMMEND this team and Mallick.
Janet · Gaithersburg, MD Kyle was so helpful in helping my husband and I fix the water pressure in our house. Kyle was very well versed and experienced, providing great options for future improvements to water filtering. I would highly recommend his services to anybody struggling with plumbing issues.
Azusena Herrera Tapia · Gaithersburg, MD
Every quote above comes directly from Mallick’s current Google Business Profile record.
Read more customer storiesCommon Questions
Sewage Pump Questions, Answered
Still Stuck?
Talk To A Plumber
(301) 804-6759Someone picks up 24/7 — nights, weekends, and holidays included.
What does a commercial sewage pump do?
A commercial sewage pump, or ejector pump, lifts waste from a property below the sewer line up to the public system. It works with a storage or septic tank that holds waste until the pump can move it, which is what lets a below-grade property operate normally.
What problems do you see most often?
Failure to start, stuck float switches, discharge problems, jams, clogs and check valve faults. We diagnose the system before recommending work.
How is a commercial pump different from a residential one?
Duty. Commercial applications handle volumes and solids a residential unit never encounters, and fitting a residential-duty pump into a commercial setting is the most common reason they fail early. We specify against the actual load rather than a catalogue.
Do you provide emergency cover for these?
Yes — technicians are on call 24 hours a day, seven days a week for commercial plumbing emergencies. A failed sewage pump stops a business rather than inconveniencing it, so it is dispatched rather than booked.
Where We Work
Sewage Pump Service Across Maryland
Bethesda Rockville Silver Spring Germantown Potomac Olney Clarksburg Damascus Chevy Chase North Potomac Frederick Woodbine Columbia Ellicott City Aspen Hill Boyds Burtonsville Darnestown North Bethesda Poolesville Takoma Park Wheaton–Glenmont White Oak Green Valley Linganore Washington, DC College Park
Related Services
Commercial Sewers Commercial sewer cleaning, inspection, repair, replacement and maintenance across Gaithersburg and Maryland — sequenced to get the property trading again first and do the permanent repair second.
Residential Sewage Pumps Sewage pump installation, replacement, repair and maintenance for homes and businesses across Gaithersburg and Maryland — sized to the fixtures they serve, for any property sitting below the sewer main.
Grinder Pumps Grinder pump installation, repair, maintenance and replacement on commercial and residential units across Gaithersburg and the surrounding areas — for any property sitting below the sewer line.
Commercial Plumbing Commercial plumbing for restaurants, retail, offices and multi-unit buildings across Gaithersburg and Montgomery County — grease traps, backflow prevention, storm drainage, commercial water heaters and 24/7 emergency response.