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TRUSTED BY HANOVER, MD HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon39
    Verified septic tank services reviews

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

Avatar for Pohlman Plumbing Inc
Pohlman Plumbing Inc
4.4(
42
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Repair - For Business

Serving Hanover, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I called Pohlman to replace my Gas water heater. I was very pleased with their service. They were very professional, came out on the same day, took the old tank with them and cleaned up well behind themselves, They finish the job in a timely manner and their price was fair. I would definitely hire them again."
Finished Shower
Finished Shower
Panoramic View
Vanity
Mid-replacement

+10

Response time8 hrs
Response rate97%
Recommended by86%of homeowners
Avatar for Heil Plumbing & Hvac
Heil Plumbing & Hvac
4.9(
238
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Hanover, MD and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"The plumber was scheduled to come on 4/23 between 1:00 and 3:00p.m. At 1:00p.m. I got a call saying that the plumber would not be able to come until 4/24 as he was delayed at a previous call. He arrived promptly at 9:00a.m. the next morning. One toilet would not flush properly. He repaired that toilet. The other toilet ran on occasion. He replaced the fill valve. On occasion it still runs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Recommended by96%of homeowners
Queen's Backhoe & Septic Service
4.8(
14
)
Septic System - Install or ReplaceSeptic System - RepairSeptic Tank - Clean or Pump Out

Serving Hanover, MD and surrounding areas

In business since 1980

Free estimates

"After contacting five other contractors to repair a septic pump, Queen was the only one to promptly respond and follow through. The tech showed up on time, completed the job and charged a reasonable fee. I will use them for ongoing maintenance and would highly recommend them. I can t say this if many contractors ... totally satisfied with their work!"
Response time4 hrs
Recommended by100%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 Hanover, MD and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"My call was returned promptly and the plumber showed up exactly on time. He was polite and fixed the problem very quickly and even gave me tips on how to avoid similar clogs in the future. This company truly cares about its customers which is a rarity these days and I will only use them for any future plumbing jobs. I highly recommend them, they are super!
"
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
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Septic Tanks FAQs, answered by experts

The main difference between a mound septic system and a conventional one is that the drain field in a mound system is built up into a mound composed of sand and gravel to increase the filtration time the wastewater sees before it is returned to the aquifer. There’s also a significant cost difference, with mound systems typically costing far more than standard septic systems.

On average, you should call a pro to pump your cesspool once per year. If you have a larger home with a lot of family members, you may need to pump more (up to six times per year). On the flip side, if you’re talking about a cesspool for a home you don’t use much or if you’re the only occupant in a home, you won’t have to pump nearly as much.

Several things can ruin a septic tank over time, including dumping harsh chemicals (like bleach and ammonia), pesticides, and paint thinners down your drain because they can kill the bacteria in your septic tank. You should also make sure to only flush waste and toilet paper in your toilet—otherwise, you could clog your system.

They can if they’re not installed correctly or if the caps or covers were dislodged by a lawn mower or other yard equipment. This is why it pays to hire a reputable septic tank company that’s experienced in septic tank installation and maintenance. You should also check caps and covers often to see that they’re in place and take measures to tighten or secure them, provided it is safe to do so.

Wells typically replenish at a rate of about five gallons per minute, but several variables can influence how quickly they refill. A deep well will take more time to replenish than a shallow one. The replenishment rate can be slowed by issues such as leaks, damage, a faulty well pump, or a clogged well screen. Other factors, such as the surrounding geology, regular precipitation, and proper maintenance, also affect the recovery rate.

The Hanover, MD homeowners’ guide to septic tank services

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