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

Find Septic tank pros in Cottleville

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
Avatar for Summit Power Systems, LLC
Summit Power Systems, LLC
4.1(
12
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Cottleville, MO and surrounding areas

In business since 1980

Emergency services offered

Credit card accepted

Summit Power Systems, LLC, is a family owned and operated business. With over 30 years of experience we are your go to company for anything dealing in generator install or repairs. There is no project too big or too small. Give us call today for a complimentary estimate.

St Louis Hill Generator
Chicago, IL Generator
Chicago, IL 60 kW
Wentsville, Missouri
Wentsville, Missouri 80 kW Generac

+18

Response time5 hrs
Response rate95%
Recommended by90%of homeowners
Showing 1-10 of 22
Septic Tanks questions, answered by experts

Ensuring you have adequate space for your engineered septic system is crucial. You’ll need to reserve approximately 900 square feet for a three-bedroom home’s system. However, the type of soil you have, soil absorption rate, the size of your home, climate, and local zoning code will impact the actual amount of space you need.

Septic tanks can clog if they aren’t pumped every few years since solid waste accumulates inside of them. Your tank might also clog if you have a habit of flushing anything other than human waste or toilet paper. Items like diapers, baby wipes, paper towels, cat litter, and personal hygiene products should never go down your pipes.

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.

Well water is often assumed to be hard because of its high mineral content. Hard water can lead to mineral build-up in your pipes and appliances. You can manage hard water by installing a whole-house filter system. These systems can help extend the life of your water-reliant appliances like your hot water tank and dishwasher. 

There are a lot of issues that can cause a septic tank to collapse. Those include failing to regularly pump or service it every three to five years, placing too much weight atop the system—by parking your car on top of it or because of a heavy snow buildup for instance—or because of structural damage done by overgrown tree roots.

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.