4.5 
94 *The Angi rating for Drain Pipe Installation 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 Drain Pipe Installation needs.
*The HomeAdvisor rating for Drain Pipe Installation 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 Drain Pipe Installation needs.
Last update on January 20, 2026
Serving O Fallon, MO and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Great service, spent 4 hours on install, repaired some nearby piping free of charge. Great service!"
+7
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Emergency services offered
Warranties offered
"Technician was very thorough in explaining what needed to be done to replace a sump pump and moving some of the PVC drain pipe. Everything was completed to my satisfaction and in the time estimated."
+9
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 2019
Free estimates
Emergency services offered
"Ambassador Plumbing did a great job in pin pointing the problem and fixing it. They picked up the new Moen faucet and came back the next morning to install it."
Serving O Fallon, MO and surrounding areas
Approved
In business since 2009
Warranties offered
Credit card accepted
"I want to thank Hosack Plumbing, and Kent, for getting my situation cleaned up quickly and professionally. My water heater install is perfect, my water pressure spot on thanks to the new PRV, and is ready for inspection. Kent was thorough, professional, and very clean. He noticed my mask when I answered the door and wore a kn95 mask the whole time. The life coaching advice was an added bonus. Kent's work was great and I'm very pleased with the service provided."
+2
Serving O Fallon, MO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"Craig and Ethan did a nice job replacing a drain pipe today damaged by a water main break and causing a leak into the basement . They were knowledgeable, neat, and efficient. A very good hvac company provides relysbke plumbing service too!"
+18
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 1991
Free estimates
Emergency services offered
"This is the second time I have hired Metro Lawn Sprinklers & Landscapes. The first time they installed an effective French drain system at a prior residence. At my newest residence they recently extended / relocated a downspout drainage popup emitter to be further out in my yard away from my house. The day of the work they arrived on time, reviewed the work to be done and completed the work within the time estimated and cleaned up the work area. I am very pleased with the work they did. If I need any more landscaping / drainage work, Metro will be the first company I call. I trust their integrity and their competence."
+1
Serving O Fallon, MO and surrounding areas
Approved
In business since 1974
Free estimates
Warranties offered
"Perma Jack was very responsive and willing to work with the owner of the project to complete a successful waterproofing drainage system. Perma Jack also worked in a very professional manner. I would definitely recommend this company."
+197
Serving O Fallon, MO and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"Easy to work with, courteous and cleaned up after the job was complete. Completed almost a year ago and no more water leaks and no farther inward movement of our walls. Quality work and no further problems at that end of the basement. Having water seepage at the other end and will plan to hire again to address our new problem. Best price of the four estimated I received."
+1
Serving O Fallon, MO and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Leon was great. One of his guys came by a few days after the install just to check on it."
+203
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