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TRUSTED BY O FALLON, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon11
    Verified septic tank services reviews

Top-Rated Septic tank pros in O Fallon - Updated Nov 2026

Rooter-Man Plumbers
3.9(
14
)
Septic System - Install or Replace - For BusinessSeptic System - RepairSeptic System - Repair - For Business+2 more

Serving O Fallon, IL and surrounding areas

In business since 1996

Free estimates

Credit card accepted

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

Response time1 day
Recommended by92%of homeowners
Avatar for Spengler Plumbing, Heating and Cooling
Spengler Plumbing, Heating and Cooling
3.8(
75
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving O Fallon, IL and surrounding areas

In business since 1971

Emergency services offered

Credit card accepted

"Sunday night tenant calls sewer backing up in her bathtub
made several calls no answer 4th call spengler plumbing answered (dispatcher) referred me to service man
Serviceman called back I explain the circumstance's to him he states he needs 125.00$ to come to house
I gave him my credit card he charges the 125,00$ then proceeds with a sales pitch about how much cheaper a monthly fee for
their service would be, I declined.
Serviceman arrives looks over situation calls me back states it will be 701.00 to clear sewer line that has a outside house access
Tenants can not use toliets or showers serviceman is aware of the situation I am in and I tell him to proceed 
His total labor time was about an hour
will never use them again
"
Recommended by68%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 O Fallon, IL 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 Reed's 24 Hr Plumbing & Drain LLC
Reed's 24 Hr Plumbing & Drain LLC
2.8(
5
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving O Fallon, IL and surrounding areas

In business since 2005

Emergency services offered

Credit card accepted

"when I got home from work I smelled a strong odor of gas. I called Reeds 24hr Plumbing & Drain and the lady that I spoke with on the phone said she would get a technician to call me back immediately. within minutes I was contacted and the gentleman told me what to do to get the gas shut off till he arrived. I was really surprised that he said he was in the area and would be here with-in 1hr or less. He showed up in less then 30 min. He was very nice and located the leak very quickly. I was given a price before he did any work and he told me  exactly what the problem was and what he was going to do to fix it.. It took him a little less then an hour and was clean, courteous and  friendly. As he was going over the bill he asked me if I ever served in the military? I not only was pleased with this technician  but I was given a 10% discount for serving our country. Thank you Reeds plumbing for doing a great job and your prices were reasonable and to me even seemed very low. I will use your company again and recommend you to my friends and family!"
Recommended by66%of homeowners
Septic Tanks FAQs, answered by experts

To keep your septic tank healthy, be careful of what you flush and be conservative with water usage, as even flushing too much water down the drain can throw off the septic system’s delicate balance. Never flush anything but human waste and toilet paper down your toilet, and be sure to have the tank inspected and pumped every two to five years, depending on the size of your household and your water usage.

Depending on local conditions, a deep well may be a better choice than a shallow well. Deeper well depth accesses groundwater that has been naturally filtered through many layers of soil and rock. This reduces surface contaminants and may offer cleaner water, but deep wells cost more money to build and maintain. The water may be harder and have higher radioactivity, too. 

Many contractors offer warranties for parts and labor. Confirm terms before hiring.

Normally, when your well pump turns on or off, you’ll hear a small click. This isn’t anything to worry about, but it can be a problem if it’s clicking continuously. This can indicate that the well pump is short cycling—the pump continuously turns on and off.

This can wear out the motor and provide uneven water flow. If this happens, you may need to get it looked at by a well pump professional to see if you need to repair the switch or pump.

Over time, your septic tank can accumulate a buildup of sludge at the bottom of the tank. If left unpumped and uncleaned, the sludge will back up into your pipes and home, causing failure and extensive (and smelly) damage. Repairs to your septic system can be costly, which is why regular maintenance is required. It takes about 30 minutes to pump a septic tank that’s 1,250 gallons or less or 1 hour for larger varieties.

The O Fallon, IL homeowners’ guide to septic tank services

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