4.6 
3.1k+ *The Angi rating for Plumbing companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.
*The HomeAdvisor rating for Plumbing companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.
Last update on July 16, 2026
Serving O Fallon, MO and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Great, Tim was very professional,!I would hire him again for any plumbing work, and would highly Ambassador Plumbing to anybody who need plumbing work."
Serving O Fallon, MO and surrounding areas
Approved
In business since 1987
Emergency services offered
Warranties offered
"Called today for a non-emergency service (no water leaks at the moment). I scheduled an appointment for the following week. A couple hours later they called and said they could come today. Jason arrived a few minutes later. He was very friendly and professional. He reviewed the damage from the leak (we had turned off the water). He was able to quickly determine the likely cause. After making the fix he double checked to ensure the problem was fixed. I really appreciated his expertise and ability to ensure the fix worked. I also appreciated his friendly demeanor.
I have used Kirkwood Plumbing before and they will be the first for me to call.
"
+3
Serving O Fallon, MO and surrounding areas
Approved (Corporate)
In business since 1935
Free estimates
Emergency services offered
"It was expensive but fine. The plumber was very nice."
+1
Serving O Fallon, MO and surrounding areas
Approved
In business since 2006
Emergency services offered
Warranties offered
"I did not contact SC Hosack Plumbing at all, so I know NOTHING of their skills, services or cost."
+3
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!"
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Warranties offered
"Eric did a great job and was very fun to work with. The new sink looks great and everything is working smoothly. Highly recommend Go Time Plumbing Services."
Serving O Fallon, MO and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"My plumber was very knowledgeable and helpful."
+7
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Emergency services offered
Warranties offered
"My Pro was absolutely fantastic. Not only did he take care of my clogged sink, his "sink side manner" displayed respect, knowledge, and professionalism. He also left me with information on how to clear my drain naturally. Zoom Drain is now my go to company for plumbing."
+9
Serving O Fallon, MO and surrounding areas
Approved
In business since 2012
Free estimates
Warranties offered
"Showed up when they said and completed kitchen remodeling plumbing as required by code."
+196
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Credit card accepted
"The people on the phone and the workers that worked at my house were fantastic. Damien and Ernest were the installer's top rate people. Jack, their license plumber was polite and funny. The only person we didn't care for was Keith He only stopped by to look at what was going on. He was a little rude to my wife and Made her feel Like she was second class in her own home. We Were very shocked by that. We would definitely recommend Jacuzzi to our friends."
+15
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