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Best septic tank pros near Hannibal, MO

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

Jamison Plumbing & Home Services LLC
4.8(
13
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Hannibal, MO and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"We bought a house recently. The inspection report called for installation of an expansion tank and lengthened drip leg on the HW heater. Jamison Plumbing had installed the new HW tank several months before for the original home owner. Jason called the City of Liberty to determine the exact code requirements. He called back and agreed to the additional work at no charge. He was able to make the changes in a timely manner. His crew called to say they would be later than planned because of an unexpected delay at the preceding job site. We appreciated his willingness to finish the installation according to code and to cover the additional materials and time. It was a great way to be welcomed into a new community.
"
Recommended by92%of homeowners
Rardo's Excavation
5.0(
2
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Hannibal, MO and surrounding areas

In business since 2019

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction! \n

Response time7 hrs
Recommended by100%of homeowners
JONES SEPTIC SERVICE - Home Facebook
New to Angi
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic Tank - Clean or Pump Out+1 more

Serving Hannibal, MO and surrounding areas

In business since 1985

Free estimates

Credit card accepted

We offer only the best in quality workmanship and professional courtesy. We specialize in all phases of commercial and residential landscaping. We are committed quality work and outstanding results & are strongly involved in local community activities. We look forward to working with you! \n \n

Avatar for Moores Excavation and Grading LLC
Moores Excavation and Grading LLC
New to Angi
Septic System - Install or Replace

Serving Hannibal, MO and surrounding areas

Free estimates

Small jobs welcome

Moore’s Excavation and Grading provides expert excavation and grading services for all types of construction projects. Whether you're building a new home, renovating an existing structure, or handling any other residential construction, we’ve got you covered. Our services include:\n\nSite Preparation: Grading for foundations, basements, and driveways.\n\nUtility Work: Excavation for utility trenches, waterline repairs, and installation.\n\nSeptic Solutions: Septic system repair and installation.\n\nLand Alteration: Residential site work, land clearing, and leveling.\n\nGeneral Dirt Work: Custom solutions for any excavation or grading needs—big or small.\n\nNo job is too big or small for Moore’s Excavation and Grading. With years of experience in residential construction, we deliver precise, efficient, and reliable results for your project.

Septic Tanks FAQs, answered by experts

There are three layers of wastewater in a septic tank: scum (solid waste that floats to the top of the wastewater), liquid (the relatively clean liquid wastewater in between the two other layers), and sludge (solid waste that falls to the bottom of the wastewater). The buildup of sludge is one of the main reasons septic tanks need to be pumped. If the tank is more than 1/3 of the way full with a combination of sludge and scum, it’s time to call a pro for pumping.

Drilled wells have a pipe sticking up that’s covered in a plastic or metal casing. On the other hand, a dug well will look like a big hole in the ground and is more similar to what you’d see in a fantasy or Western movie. If you want to be sure, contact the city for documentation on your property’s construction and excavation history. 

The bacteria already present in your septic system should be enough to break down solids in a properly maintained septic tank. However, if you’re in a DIY mood, you can try adding (well-mashed) rotten tomatoes to help the good bacteria fulfill their duty. Just make sure you give them a couple hours to work after flushing them down.

Septic tanks come in multiple shapes, sizes, and materials. However, they’re often round or rectangular in shape and made from concrete, fiberglass, or plastic. There’s a range of septic tank sizes, with the average model measuring 30 to 40 square feet and holding 1,000 to 1,500 gallons of waste.

Although cesspits may be necessary depending on your main sewage system access or nearby soil quality, they carry a few drawbacks. Cesspools require regular emptying and have relatively high maintenance and pumping costs. Certain areas also disallow the use of cesspools and may require you to cover the cost of existing cesspools to be converted into septic tanks.

The Hannibal, MO homeowners’ guide to septic tank services

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