Get matched with top septic tank pros in Weldon Spring, MO

Weldon Spring homeowners rate septic tank pros in our network

4.5

(41 reviews)

Top-rated septic tank pros.

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

Select your specific project to find the pro for you.

Verified Reviews for Septic Tank Service pros in Weldon Spring, MO

*The Angi rating for Septic Tank Service companies in Weldon Spring, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

*The HomeAdvisor rating for Septic Tank Service companies in Weldon Spring, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

Last update on January 21, 2026

Find Septic tank pros in Weldon Spring

Avatar for Mission Septic and Drain LLC
Mission Septic and Drain LLC
5.0(
5
)

Serving Weldon Spring, 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
Request Quote
Avatar for HS Sewer and Drain
HS Sewer and Drain
4.9(
7
)

Serving Weldon Spring, 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
Request Quote
SET PLUMBING, LLC
5.0(
6
)

Serving Weldon Spring, 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 time9 hrs
Response rate95%
Request Quote
Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,676
)

Serving Weldon Spring, MO and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"I had to pay an $85 service call fee (on top of monthly Choice Home Warranty subscription) to have a guy literally look at the outside of the tank and tell me it was just the burner."
Recommended by82%of homeowners
Request Quote
CHCS Construction Services & Property Management
5.0(
6
)

Serving Weldon Spring, 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
Request Quote
Avatar for Summit Power Systems, LLC
Summit Power Systems, LLC
4.1(
12
)

Serving Weldon Spring, 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
Request Quote
Showing 1-10 of 21
Septic Tanks questions, answered by experts

The best times of year to pump or empty a septic tank are spring and fall. Many professionals recommend spring because the ground has thawed, making the tank easier to access, and any snowmelt or rainfall can aid in proper drainage. Pumping before summer is also ideal to avoid conflicts with vacations or outdoor gatherings.

Fall is another great option, as contractors may be less busy than in the spring. Servicing the tank in late fall or early spring can also reduce the risk of overflow from extra precipitation during winter and spring.

While summer is a possibility, winter is generally not recommended. The ground is often frozen, which can make it difficult to access the tank, and the waste inside may also be frozen.

Needing to pump the tank as soon as it “looks” full is a common myth about septic systems, as wastewater will eventually drain into the leach field. Instead, it’s better to determine how many solids have accumulated. A septic maintenance technician near you can test this to find out whether pumping is necessary.

They can if they’re not installed correctly or if the caps or covers were dislodged by a lawn mower or other yard equipment. This is why it pays to hire a reputable septic tank company that’s experienced in septic tank installation and maintenance. You should also check caps and covers often to see that they’re in place and take measures to tighten or secure them, provided it is safe to do so.

Your septic tank naturally contains the beneficial bacteria it needs to function, so you typically don't need to add more. However, if you wish to replenish the bacteria, you can use natural methods. For example, you can add three overripe tomatoes to your garbage disposal or flush 1/4 ounce of active yeast down the toilet every three months. While store-bought septic enzymes and chemicals are available, many experts consider them unnecessary and potentially harmful. The most effective way to maintain a healthy bacteria population is to avoid using chemical drain cleaners, which can kill the good bacteria in your system.

There is no standard depth for burying a septic tank; they are typically buried anywhere from 4 inches to 4 feet underground. The final depth depends on several factors, including the depth of your main sewer line, the height of the bedrock, soil type, local regulations, and the property's landscape. If you plan to grow grass or plants over the tank, a depth of at least 4 to 6 inches is recommended. Deeper tanks can be more difficult to locate, but a septic professional can help find it for you.

The Weldon Spring, MO homeowners’ guide to septic tank services

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

See all articles