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(636) 281-2200
  • We Are #1 in the #2 Business
    We proudly serve St. Charles, Warren and Lincoln counties.
  • In Business Since 1962
    Our excellent team at O’Fallon Sewer Service received an A-plus rating from the Better Business Bureau and has over 50 years of experience behind us.
  • Big or Small, Our Team Will Get The Job Done Right.
    Whether you need a drain unclogged or are having a plumbing emergency, we are the sewer service company you can trust.

Experienced Plumbers in St. Charles, Lincoln and Warren Counties, Missouri

Serving Residential and Commercial Clients


Sewer and Drain Work
We specialize in sewer, drain and plumbing work of every kind, including clogs, electric sewer cabling, leaks, drain and sewer cleaning, water heaters and much more.


Septic Tanks
O'Fallon Sewer Service is your one-stop shop for all types of septic services, including preventive maintenance, tank pumping, installation, cleaning and full-scale repair. Get your FREE estimate.


Portable Toilets
Are you planning a wedding or a special outdoor event? Is your construction project going to take a long time? No matter your situation, we have portable toilet rental options for you.

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