4.6 
3k+ *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 June 25, 2025
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."
+3
Serving O Fallon, MO and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Tim at Ambassador Plumbing was very professional, courteous and solved and repaired our problem quickly! Definitely recommend!"
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
"Glen was great. As a local building code official and Inspector I I can tell you that these guys do it right and they use top notch materials. Could not have had a better experience with this plumbing company. Hoffman plumbing works on commission but these guys (Hosack) do not. You'll get a flat price that is much less than Hoffmans padded estimates."
+3
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Credit card accepted
"Called Express service plumbing to fix a couple PVC waste pipes that were broke as well as running new lines to a mudroom sink. They came out the next day and had it knocked out in a couple hours. They were very professional and courteous. I’ve already recommended Express Service to a couple friends that were looking for a plumber."
Serving O Fallon, MO and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Mike was very professional and friendly. He works diligently and takes pride in a job well done. He has done other plumbing issues in my home"
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
"The company was Professional and the plumber was friendly and listened to all my concerns. Dwayne explained everything he was doing and his findings to me."
+9
Serving O Fallon, MO and surrounding areas
Approved
In business since 2012
Free estimates
Warranties offered
"We hired MH Construction for a kitchen renovation, and we are thrilled with their work! Mike and his team were excellent from start to finish. Mike kept in regular contact with us throughout the process, answering our questions and working out the design. He and his team were amazingly efficient, often getting more completed each day than weâ d anticipated, and they were polite, professional, and always kept the work area clean and safe. They also went the extra mile and conscientiously fixed unexpected issues they found, including several smaller electrical and plumbing glitches. Best of all, we couldnâ t be happier with the end product: our kitchen is beautiful and more functional than ever. Weâ ll recommend MH Construction to all of our friends, and weâ d be delighted to hire them again in the future!"
+196
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