Top-rated septic tank pros.

Best septic tank pros near Cottleville, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your septic tank service project in Cottleville, MO?

Select your specific project to find the pro for you.

TRUSTED BY COTTLEVILLE, MO HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon42
    Verified septic tank services reviews

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

Avatar for Mission Septic and Drain LLC
Mission Septic and Drain LLC
5.0(
5
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Cottleville, MO and surrounding areas

In business since 2023

Emergency services offered

Small jobs welcome

Mission Septic and Drain, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Response time9 hrs
Recommended by80%of homeowners
Avatar for HS Sewer and Drain
HS Sewer and Drain
4.9(
7
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Cottleville, MO and surrounding areas

In business since 2011

Free estimates

Emergency services offered

HS Sewer and Drain is proud to provide homeowners, realtors, and commercial businesses with quality plumbing service since 2011! With years of experience, our service professionals have the knowledge, tools, and resources to handle all of your sewer and septic needs! Whether your problem arises during the day, at night, on a weekend, or even over the holidays, you can rest assured that HS Sewer & Drain will arrive and get your plumbing back in order. From septic systems to sewer mains, we can do it all in a safe and timely manner. If your plumbing is clogging up your time then don't try and figure it out yourself- let the pros give you a hand! Give us a call today!

New riser and lid
Exposing buried lid
100' sewer line replacement
100' Sewer Line Replacement
Finished Grade

+19

Response time30 mins
Recommended by100%of homeowners
SET PLUMBING, LLC
5.0(
6
)
Septic System - Install or Replace

Serving Cottleville, MO and surrounding areas

In business since 2025

Offers commercial services

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

Response time10 hrs
Response rate100%
CHCS Construction Services & Property Management
5.0(
6
)
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Cottleville, MO and surrounding areas

In business since 2015

Free estimates

Emergency services offered

We take great pride our experience, expertise, quality and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

Response time2 days
Response rate97%
Recommended by60%of homeowners
Showing 1-10 of 22
Septic Tanks FAQs, answered by experts

Costs depend on tank accessibility, size, and local rates. Regular service serves as preventive care, averting costly emergency repairs or system replacements.

The dimensions of a 500-gallon concrete septic tank can vary from manufacturer to manufacturer, but the tank is large enough to handle the wastewater of a small home with up to one bedroom. Keep in mind that some states have a minimum septic tank size, and this often starts at 750 gallons. A 500-gallon septic tank may be too small to meet local regulations.

If your leach field becomes clogged or saturated, it can cause several problems with your home's septic system. The clog can cause sewage to back up into your home, leading to unpleasant odors and mess. A backed-up septic system can be a health hazard, particularly if the sewage starts to leach into the ground surrounding the leach field.

There are several ways to fix a saturated drain field, including cleaning out your septic tank, adding enzymes and additives to your drain system, and installing a larger septic system.

Signs that your well is dry include a decrease in water pressure, strange odors coming from faucets, cloudy, bubbly, or discolored water, and water that’s warmer than normal. Signs that your well pump is bad are similar, but you may also notice higher-than-average electric bills, strange clicking sounds, and faucets that spit or sputter.

A septic system's lifespan typically ranges from 15 to 40 years, with a common average of 20 to 30 years. The longevity heavily depends on the tank's material, maintenance diligence, and usage habits. With proper care, lifespans can reach the upper end of this range.

Lifespan by Tank Material:

  • Concrete: 20 to 40 years

  • Plastic or Fiberglass: 30 to 40 years

  • Steel: 15 to 20 years

To maximize your system's lifespan, follow these maintenance best practices:

  • Regular Pumping and Inspections: Have the tank pumped every three to five years and schedule professional inspections regularly.

  • Mindful Usage: Only flush human waste and toilet paper. Avoid putting items like cat litter, paper towels, cigarette butts, fats, grease, oils, or coffee grounds down your drains.

  • Avoid Chemicals: Do not pour harsh chemicals into the system.

  • Water Conservation: Reduce the amount of wastewater your system has to process.

  • Protect the Drain Field: Avoid driving or building heavy structures over the drain field area.

The Cottleville, MO homeowners’ guide to septic tank services

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