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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

To keep your septic tank healthy, be careful of what you flush and be conservative with water usage, as even flushing too much water down the drain can throw off the septic system’s delicate balance. Never flush anything but human waste and toilet paper down your toilet, and be sure to have the tank inspected and pumped every two to five years, depending on the size of your household and your water usage.

Leach lines are commonly made of PVC pipe, and they’re placed into trenches filled with gravel and sand, which help treat the wastewater. The PVC pipes are perforated, or drilled with small holes, so the wastewater can drain out of the pipes and into the surrounding material, which eventually leads to the aquifer.

Common problems include low water pressure, no water, and strange noises. Regular maintenance prevents many issues.

It is not normal to smell your septic outside and indicates a problem such as an unsealed manhole or access lid, a clogged septic line, a faulty vent stack, or the need for a septic tank pumping. If sewage is leaking from your septic system, it can be hazardous to you, your family, pets, and the surrounding environment. You can troubleshoot the issue yourself, or contact a septic tank pro who can resolve the issue quickly.

The average cost to replace a septic tank or install a new system is typically around $7,350, with a broader average range of $5,000 to $12,000. However, total project costs can vary widely, from $5,000 to as much as $22,500. Key factors influencing the price include the size and type of the septic system, the tank material, and the size of your house.

It's important to distinguish between the cost of the tank itself and the cost of the entire system installation, which is significantly more. For the tank alone, costs vary by size:

  • A tank for a one-bedroom house typically costs $500 to $900.

  • A 1,000-gallon tank, suitable for most one- to three-bedroom homes, costs between $900 and $1,500.

  • A tank for a five- or six-bedroom home generally costs $1,200 to $1,600.

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.