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TRUSTED BY MANDEVILLE, LA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon59
    Verified septic tank services reviews

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

Avatar for Thigpen Septic Tank Service
Thigpen Septic Tank Service
4.7(
55
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mandeville, LA and surrounding areas

Credit card accepted

"Noticed we were starting to have issues with our septic tank. Gave Thigpen a call and set up an appointment for the next day. They were here on time and completed the job quickly. No trying to talk me into any other services I didn't need, no bs, just straight up honest work. Will definitely hire again when the time comes."
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Truck & Jerrys
Truck door & Jerrys
Truck
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+5

Recommended by96%of homeowners
Avatar for Jim's Service Inc
Jim's Service Inc
4.6(
79
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mandeville, LA and surrounding areas

In business since 1977

Free estimates

"Somehow rain water was flooding into my septic tank causing it to backup into the house - yuck!  Jim came out after 9:30 p.m. on a Sunday to rod the sewer out to the septic tank and scheduled a day to come out the following week to inspect and replace the main sewer line if needed (they were working a major construction job and that was the earliest that he was available).
The following Saturday when the forecast called for heavy rains late afternoon - Jim called me and came out with another plumber and apprentice to dig up and replace the main sewer line in advance of  the heavy rainfall.  
Needless to say, it worked and there was no flooding at all during the rainstorm - we even flushed toilets and my daughter took a shower, but no backup and all the drains worked flawlessly!"
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+2

Recommended by90%of homeowners
Emergency Rooter llc
4.5(
11
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mandeville, LA and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Great experience working with Jacob, listening to the issue, quickly diagnosing and confirming what work needed to be performed to resolve both the clogged drain and leaky piping underneath the sink and explaining the process all along. He promptly cleared the line using the hydro-jet and replaced the galvanized piping with PVC including the install of a new cleanout valve. Afterwards, he cleaned up the work area not leaving a mess which is appreciated. The price was reasonable considering the circumstances and he was very efficient. I will not hesitate to call them again if I have another plumbing issue and would recommend them for plumbing services."
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+8

Recommended by81%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mandeville, LA and surrounding areas

In business since 1971

Credit card accepted

"The technician emptied the freezer, which was in the basement, to work on the part that needed repair. Then he neglected to put anything back into the freezer, including a turkey I had bought for Christmas and a rack of ribs. Two days after he left, I went out of town for two weeks. The turkey actually exploded and spewed its liquid all over everything, which had to be discarded. I let AHS know and they couldn't even bother to call me or follow up on this. I'm considering not renewing my contract with them because of the quality (or lack thereof) of many of the providers they send."
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+2

Recommended by65%of homeowners
Avatar for Cooper Unlimited
Cooper Unlimited
5.0(
1
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mandeville, LA and surrounding areas

In business since 2019

Free estimates

Credit card accepted

Cooper Unlimited: Your Partner in Precision and Performance\n\nAt Cooper Unlimited, we are a leading provider of comprehensive land management and construction services, dedicated to delivering excellence in every project we undertake. With a strong focus on precision, performance, and customer satisfaction, we have established ourselves as a trusted partner for clients across Louisiana and beyond.\n\nNew Construction Land Clearing and Preparation\nTree Removal Services\nSeptic Tank Installation\nHeavy Equipment Operations\n\nWhy Choose Us?\nExperience and Expertise\nCommitment to Quality \nSafety First\nCustomer Satisfaction\n\nGet in Touch\n\nWhether you're planning a new construction project, need land management services, or require heavy equipment operations, Cooper Unlimited is here to help. Contact us today to discuss your project needs and discover how we can bring your vision to life with precision and performance. Let us be your partner in success.\n\nCooper Unlimited - Precision, Performance, Excellence.

After
Excavating Project
After
Excavating Project
After

+21

Response time8 hrs
Response rate100%
Septic Tanks FAQs, answered by experts

A septic tank riser features a base ring that you need to install flush to the opening of the septic tank. After thoroughly cleaning the opening of the tank, fit the base ring over the opening and use a butyl sealant rope to create an airtight seal with the tank’s rim. Cut the riser rings to the appropriate height and stack them on the base ring. Then, install the riser lid. This task might be taken on by an experienced DIYer, but you should always call a septic tank professional if you are unsure of your skills.

How to size a well pressure tank is determined by three factors: flow rate, or how many gallons per minute your well pump produces; minimum runtime; and pressure switch setting. Most pressure tanks have a pressure switch operating at 20/40, 30/50, and 40/60—the first number is the pressure needed for the pump to turn on, and the second number is the pressure needed for the pump to switch off. Most homeowners relying on well water require a water pressure tank ranging from 20 to 80 gallons. 

To determine the right size for your submersible well pump, find your well depth, water demand, and well casing diameter. The pump should match your well's specifications and meet or exceed your drawdown and pressure requirements. 

For precise sizing, make sure to research the different well pump sizes, consult the manufacturer's recommendations, or seek guidance from a professional well pump installer.

Good news: You’ll naturally increase the bacteria in your septic tank simply by using it. If you want to encourage more good bacteria growth, stop using products and household cleaners that kill bacteria, such as bleach and harsh chemicals. Never flush antibiotics, and make sure only water and waste go down the tube—not paper products, feminine hygiene products, or diapers.

Most home wells start at 100 feet, and many go as deep as 200 or 300 feet. 

It takes quite a lot of water to meet the demands of showers, toilets, faucets, and appliances like dishwashers and laundry machines, and shallow wells struggle to provide this amount quickly. If you anticipate having high water usage in the future, it’s often better to drill slightly deeper and give yourself a bit more water storage than you need.

The Mandeville, LA homeowners’ guide to septic tank services

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