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TRUSTED BY MAYO, MD HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon56
    Verified septic tank services reviews

Top-Rated Septic tank pros in Mayo - Updated Nov 2026

Avatar for Millersville Plumbing Inc
Millersville Plumbing Inc
4.7(
257
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mayo, MD and surrounding areas

In business since 1970

Free estimates

Credit card accepted

"Arrived on time.  Had to cut out and replace cleanout plug for the septic since it had been years (decades?) since it was last removed, at no extra charge.  I was able to observe the camera screen as the inspection progressed.  Pipe was in good shape.  (I had the inspection done as a precaution before installing a patio above it.
They also located and dug out the main water supply shutoff at the street so the valve inside the house could be removed. Replaced the valve using a push-fit  fitting vice solder.  No issues so far.  
Overall they did the did the specified work for the agreed to price and I have been satisfied with the results.
"
Recommended by92%of homeowners
Avatar for Knock You Plumb Out Plumbing Inc.
Knock You Plumb Out Plumbing Inc.
4.5(
194
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mayo, MD and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"**To everyone** This is the plumber you want to call !!! Typical FANTASTIC service call from "Knock You Plumb Out Plumbing". Our family was dead in the water, plumbing wise. We could not flush a toilet. Water was rising everywhere and all drains were gurgling. John Harris (owner), and a 2-man crew arrived 30 minutes after I sent a "Help!" E-mail to him. I could not believe he got to my home so quickly. John and his crew went to work diagnosing the problem. John started removing the plug on one end of my sewer system and found that my entire sewer system was under tremendous pressure due to all of the plunging I was doing. Before he started taking any more pipes apart in the basement, he asked if I had a septic system. I told him that I did and he said that my septic tank was probably full. John went out back, took the lid off of my septic system and found that the tank was almost completely full! Thanks to John, I then knew what the problem was and it was an easy fix. I had a septic cleaning company come out within a couple hours, and my house was back to normal. Thanks again John. This was the second time in 3 months he helped me out and I could not be happier. This guy is my only plumber?forever!
"
Main sewer connection at the house
Working out of a shoring box
This particular sewer happened to be at 14' in depth.
Sediment Filter
sediment filter

+1

Recommended by95%of homeowners
Avatar for Bailey's Plumbing & Drain Services, LLC
Bailey's Plumbing & Drain Services, LLC
4.6(
18
)
Septic System - RepairSeptic System - Repair - For Business

Serving Mayo, MD and surrounding areas

In business since 2015

Free estimates

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Response time6 hrs
Recommended by94%of homeowners
AJ McDonald Co., Inc.
4.6(
12
)
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Mayo, MD and surrounding areas

In business since 1941

Free estimates

Emergency services offered

"They called me right away once I submitted the request through Home Advisor and arrived the next day. Work was done quickly. My questions were answered and they will remind me in three years to have my septic cleaned again. Can't ask for more than that! Not sure of the value for the money, did not price around."
Response time2 hrs
Response rate85%
Recommended by100%of homeowners
Avatar for BGE Home
BGE Home
4.6(
1,327
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mayo, MD and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"We needed our water heater replaced. It was somewhat complicated because we wanted to upgrade the tank in size, but we had limited room for it. There was some back and forth in finding the appropriate tank, but the salesperson and technicians were very pleasant to work with throughout the whole process. When the pipes were moved and the tank was installed, it was done efficiently and professionally. We are very happy with our experience and the final product."
Recommended by94%of homeowners
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Septic Tanks FAQs, answered by experts

Yes, a septic tank riser can replace a concrete septic tank lid. Risers are designed to replace various types of septic tank covers, including concrete, metal, and fiberglass, to provide easier access for pumping and repairs. While a plastic riser makes future access more convenient, the initial replacement can be difficult because concrete lids are very heavy, so it is a job best left to professionals. Once installed, you will need to be cautious around the riser during yard work, such as mowing, to avoid causing damage.

Yes, a bigger well pump can increase water pressure—up to a point. If you currently have a well pump of 8 GPM, you might notice a pressure boost when you go up to 10 GPM. However, overshooting significantly (going up to 15 GPM for an 8 GPM home) can strain your well system and result in things like burst pipes that can decrease your water pressure and make for costly repairs.

The purpose of a septic tank is to allow solid wastes to separate out of the wastewater using time, gravity, and other natural biological processes. If your septic tank is too small, it might be overwhelmed by solid waste and unable to accomplish this task—and if it’s far too large, there won’t be enough liquid in the tank to nurture the necessary bacteria to aid in the breakdown process.

Unfortunately, yes. If your well pump continues working when the flow of water is completely blocked, the motor will burn up. The energy has nowhere to go, thanks to the blockage, so it turns inward. The end result? A ruined well pump and a depleted bank account (once you shop for a replacement.) 

The septic installation company must follow several steps to put in a new septic system and leach field. The installer will study your property and determine the best place for the tank and leach field. The site should be away from existing structures, be free of trees, and have proper drainage and grading. Preparing the site for the tank and leach field will require significant excavation work.

The Mayo, MD homeowners’ guide to septic tank services

From average costs to expert advice, get all the answers you need to get your job done.