O’Fallon Plumbing Services

Premium Plumbing Installations, Repairs, and More for Customers in O’Fallon, Florissant, and Chesterfield

A clean, safe, and comfortable home is one with a functional indoor plumbing system. So when your home plumbing system is malfunctioning, outdated, or just not enough to support your family, Armstrong Plumbing is here to provide you with the products and services you need to get things back on track.

With over 30 years of experience, we’re your go-to professionals for top-tier plumbing services in O’Fallon, Florissant, Chesterfield, and the surrounding areas. Our family-owned and operated business is committed to providing premium plumbing installations, repairs, and everything in between, ensuring your home runs smoothly and efficiently.

At Armstrong Plumbing, you get more than just a service. We offer an experience that prioritizes your comfort, satisfaction, and peace of mind. Our extensive range of services, from water heater services and drain cleaning to backflow prevention and testing, is designed to cater to every aspect of your plumbing needs. We’re not just fixing your plumbing issues — we’re your trusted partners for a future of worry-free plumbing.

Request same-day plumbing services in O’Fallon or any of the surrounding areas by calling Armstrong Plumbing at (636) 538-5179!

Why Choose Armstrong Plumbing?

  • 100% Satisfaction Guarantee
    We're confident you'll be happy with our services, we guarantee it!
  • Immediate, Same-Day Service
    Get a plumber out fast with our same-day appointments.
  • Backed by a Warranty
    Talk to our team about our plumbing services warranty.
  • Emergency Services Available
    Don't sit around and wait for a plumber. We're here for you!

Don’t Let Plumbing Issues Be Ignored

Small plumbing issues may not seem like much, but if not addressed ASAP, those little things you’ve learned to live with can evolve into major problems that disrupt your daily routine. Watch out for the early warning signs of a plumbing issue and know what plumbing services team to call to get your plumbing system back under control.

Call our plumbing services team if you notice:

  • An unexplained increase in your water bills: A sudden spike in your water bills could indicate a hidden leak or inefficient plumbing fixtures.
  • Persistently dripping faucets or running toilets: These seemingly minor problems can waste significant amounts of water over time and may indicate deeper issues.
  • Slow-draining sinks, showers, or tubs: Slow drains can suggest clogged pipes or issues further within your plumbing system.
  • Frequent backups or blockages: Frequent drain backups might signal a serious issue, such as tree root intrusion in your sewer line.
  • Foul odors: Persistent unpleasant smells can indicate blocked or damaged pipes or sewer lines.
  • Visible water stains or damage: Brown spots on ceilings or walls, or warped flooring can be a sign of a hidden leak.
  • Reduced water pressure: Sudden low water pressure throughout your home could indicate a broken water line or a problem with your water heater.
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Hear From Our Happy Customers! Five-Star Reviews & Testimonials
  • "Armstrong Plumbing was courteous, professional, on time, and did good work. We had a list of repairs in our initial request but then ended up with a new leak before they came. They fixed our leak and the rest of the list as well in one visit."
    Kimberly S.
  • "Armstrong Plumbing is a very reliable, honest, plumbing service company in the St. Louis area. I’ve used them for 10 years. They are super responsive whenever I have a problem and I’ve never had to wait more than 24 hours for a service call."
    Scott L.
  • "Armstrong Plumbing has been the greatest help! We are thankful for the hard work they did digging and replacing our sewer lateral. These are some of the hardest-working and caring guys. Definitely recommend!"
    Katlyn S.
  • "We had to repipe our house from grey piping to copper. Armstrong Plumbing offered a fair price for the upgrade. Very pleased with the work and very impressed with the cleanup. We would recommend their services to anyone."
    Jefferey M.
  • "One of the most professional contractors I’ve ever dealt with. They came in and got the job done without making a mess or damaging anything. If you use Armstrong, you will get a code-compliant water heater installation."
    Kurt D.
  • "

    Had our main valve replaced today. Armstrong walked me through the fix and then tested it. They ensure full transparency and satisfaction including pricing upfront. Very professional and knowledgeable team.

    Michael B.
  • "Armstrong Plumbing is the absolute best. We purchased a remodeled home that had some issues with the plumbing and Armstrong has fixed everything. They always make sure to get us on the schedule and are always so professional."
    Sydney S.
  • "Armstrong Plumbing is our new go-to plumbing company. We will definitely use them again in the future. Very pleased with their courteous & knowledgeable employees and feel so very fortunate to have found them."
    Cheryl P.
Proudly Serving O'Fallon & Surrounding Areas

Some of the areas we service include:

  • Chesterfield
  • Florissant
  • Franklin County
  • Jefferson County
  • Lincoln County
  • O'Fallon
  • Saint Charles
  • Saint Peters
  • St. Charles County
  • St. Louis
  • St. Louis County

We Always Check Our Work

At Armstrong Plumbing, our commitment to thoroughness and effectiveness is at the heart of everything we do. We don’t just deliver services — we create solutions that stand the test of time. 

Our team of dedicated professionals takes the time to meticulously inspect and address your plumbing needs. This lets us deliver more targeted solutions that are more likely to yield long-lasting results and identify any additional issues that may contribute to or result from the issues you’re experiencing.

We understand the importance of post-service inspections. Once we complete a job, our experts conduct a thorough examination to ensure that everything is in optimal working order before we leave your home. And our Preferred Customers can expect to receive another follow-up inspection, where our team will check how our work is standing up to daily use.

To request an appointment with Armstrong Plumbing, call (636) 538-5179 or reach out to our team online. We proudly offer our expert plumbing services to customers in O’Fallon, Florissant, Chesterfield, and all of the surrounding areas!

Contact Armstrong Plumbing Today

If It's Plumbing, We Do It!
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