Top-rated septic tank pros.

Best septic tank pros near Mandeville, LA

Enter your zip and get matched with up to 5 pros

Need a pro for your septic tank service project in Mandeville, LA?

Select your specific project to find the pro for you.

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."
Truck
Truck & Jerrys
Truck door & Jerrys
Truck
Additional Photos

+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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Recommended by81%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

Getting well water tested costs $100 to $350 if done by a pro. You can also buy DIY test kits for $20 to $100, but professional tests are more reliable. You can get a comprehensive well inspection, which includes advanced water testing, for $700 to $750, which you should do yearly anyway.

The easiest thing you can do to prolong the life of your septic system is to adopt septic-safe practices. This includes not flushing non-biodegradable items, chemicals, or excessive grease down drains and scheduling regular septic tank pumping to prevent buildup. It’s also important to fix plumbing leaks promptly and to practice water conservation to avoid overloading the system. To maintain your drain field, avoid heavy vehicle traffic and plant shallow-rooted vegetation in the area. Most importantly, invest in routine inspections and maintenance to detect and address issues early.

The ideal depth of a septic drain field is 18 to 36 inches below the surface. The trenches must be deep enough to allow proper wastewater distribution and filtration while remaining shallow enough for oxygen to reach the soil, promoting bacterial activity that helps break down contaminants. In areas with high groundwater or poor drainage, shallower systems like mound drain fields may be required.

Pump the tank every 3-5 years, avoid flushing non-degradable items, and address leaks promptly to extend system life.

Baking soda does very little to nothing for a septic tank, but it can help unclog a drain or clean out a garbage disposal. Rotten tomatoes and yeast are the best ways to increase the bacteria in your septic tank naturally. You can add these to your system once every three months.

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.