Top-rated plumbers.

Get matched with top plumbers in O Fallon, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your plumbing project in O Fallon, MO?

Select your specific project to find the pro for you.

TRUSTED BY O FALLON, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon3k+
    Verified plumbing services reviews

Find Plumbers in O Fallon

Avatar for KIRKWOOD PLUMBING INC
KIRKWOOD PLUMBING INC
4.3(
95
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 1987

Emergency services offered

Warranties offered

"Garrett was very professional and efficient. He got the job done in a timely manner. We are very pleased with his work and will call again if we have a plumbing issue. Dee B."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

2 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Ambassador Plumbing L.L.C
Ambassador Plumbing L.L.C
5.0(
37
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"They were able to schedule my appointment the same day and had efficient and excellent service. The master plumber was knowledgeable and professional. I will definitely hire them again for any plumbing needs."
Response time1 day
Response rate99%
2 neighbors recently requested a quote
Avatar for Express Services Plumbing LLC
Express Services Plumbing LLC
5.0(
24
)

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"Outstanding Service from Express Services Plumbing! I had a fantastic experience with Express Services Plumbing. From the moment I called, their team was professional, courteous, and incredibly responsive. They quickly diagnosed the issue, explained everything clearly, and completed the work efficiently without cutting any corners. What impressed me most was their attention to detail and respect for my home—everything was left clean and in great shape. The plumber who came out was knowledgeable, honest, and clearly took pride in his work. It’s rare to find a company that combines quality service, fair pricing, and top-notch customer care like this. Highly recommend Express Services Plumbing for any plumbing needs—definitely my go-to from now on!"
Response time10 hrs
2 neighbors recently requested a quote
Recommended by4%of homeowners
Avatar for Ducky Drains LLC
Ducky Drains LLC
5.0(
36
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I cannot emphasize enough how Ducky Drains will be my choice anytime I have an issue with my plumbing. Mike was super knowledgable, quick and helpful! He’s growing his business the correct way, on his integrity. I’ve been raked over the coals by other plumbers. If you are in need of help with any plumbing problems, he’s your guy!"
Response time9 hrs
3 neighbors recently requested a quote
Avatar for Mr. Rooter Plumbing of St. Charles
Mr. Rooter Plumbing of St. Charles
4.2(
339
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The plumber was excellent. Good experience! They were the second company that I contacted. I did schedule the first just to get an estimate. Mr. Rooter came right out. They gave me what I thought was a reasonable estimate with two options. I decided on the lower cost, hopeful option and said I would wait for another quote if it was determined that I needed the much higher cost second option. Fortunately the low cost option did the trick. I was so happy and satisfied with the relatively quick work, I asked the plumber to give me a quote on something else I needed. I had that work done too. Both repairs were done to my satisfaction. I will be using them again for anymore of my plumbing needs."
Mr. Rooter of St. Louis
Mr. Rooter of St. Louis
Mr. Rooter of St. Louis
Mr. Rooter of St. Louis
Mr. Rooter of St. Louis

+7

Response time6 hrs
52 neighbors recently requested a quote
Recommended by89%of homeowners
...
Showing 1-10 of 403
Plumbing questions, answered by experts

In O'Fallon, urgent plumbing issues like burst pipes, sewer backups, or water heater failures require immediate attention, especially during cold snaps or heavy rainfall. Projects such as fixture upgrades or bathroom remodels can typically be planned for milder seasons like spring or fall. Always consider local weather, the risk of water damage, and contractor availability when prioritizing repairs or improvements.

Helpful?

Routine plumbing maintenance in MO involves flushing your water heater twice a year to combat hard water sediment. You must winterize your system before November by disconnecting outdoor hoses and insulating exposed pipes in garages or crawl spaces. Test your sump pump annually before the spring storm season. Schedule a camera inspection of your sewer lateral to catch root intrusion early in clay soils.

Helpful?

Always verify that your contractor holds a valid state license and carries adequate insurance to protect your property during MO storms. Hire professionals familiar with local codes rather than general metro standards. Your contractor must pull necessary permits for major plumbing projects, like water heater replacements. Choose experts experienced with older local infrastructure, such as cast iron drain lines and clay sewer laterals.

Helpful?

In O'Fallon, plumbing projects often interact with electrical, HVAC, and structural systems. For example, installing a new water heater or sump pump may require electrical updates, while pipe leaks can impact HVAC performance and air quality. Sewer line repairs might involve foundation work, and bathroom renovations could affect walls or flooring. Always coordinate with utility providers before starting major plumbing changes.

Helpful?

Homeowners must decide between trenchless or full excavation methods for sewer lateral repairs, which impacts yard disruption. You are responsible for ensuring your contractor pulls permits and schedules O'Fallon city inspections for significant plumbing upgrades. You must select your water heater type and fuel source. Finally, check your homeowner association rules to confirm exterior work and sump pump discharge locations comply with local regulations.

Helpful?

The O Fallon, MO homeowners’ guide to plumbing services

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