Serving O Fallon, MO and surrounding areas
Approved
In business since 1999
Free estimates
Emergency services offered
"Did a great job replacing my water heater and was about 30% cheaper than the other bids I got."
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
In business since 2003
Free estimates
Emergency services offered
"This was a complex retrofit tankless water heater installation and out of 30+ companies called and solicited for this project, Brett and Dunn's HVAC was the only company to 1) entertain performing the installation correctly (gas line sizing and calculations), 2) had prior experiencing working with tankless heaters, and 3) took the time to work with me on a long list of specifications. These are bulletproof systems if the installation is done correctly and Dunn/Brett took the time to ensure the install was on point and everything went smoothly. They also installed a softener and filtration system. Everything went well from bid to install and I highly recommend Brett and Dunn's - will use again as I could not be more pleased!"
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"Remove electric water heater and install a new high efficiency gas water heater."
+10
Serving O Fallon, MO and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Received a prompt response when contacted to set up a time. Timothy showed up on time, completed repairs, and we have had no issues with any of his work. Did a great job at a competitive price. I would definitely use him again or recommend him!"
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Warranties offered
"Wonderful customer service! Came early on a Sunday to look at hot water heater. Replacement installed on Monday in a couple of hours tops. Will definitely be using again for all our future plumbing needs."
Serving O Fallon, MO and surrounding areas
Approved
In business since 2000
Credit card accepted
Offers commercial services
"Cody was professional and the install was done in a timely manner"
+1
Serving O Fallon, MO and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"The technician was honest and said that the water heater is in good working condition not needing any repairs or replacement We were told the opposite by another company!!! They have indicated that it needs replacement!!"
+7
Serving O Fallon, MO and surrounding areas
Approved
In business since 2025
"Had parker’s plumbing come out to replace my tub and surround and he did it in one day! jacob was a very personable and knowledgeable plumber! will call and use again!"
Serving O Fallon, MO and surrounding areas
Approved
In business since 2020
Credit card accepted
Customers say: Quick response
"Great experience. Phil Smith, the owner, is professional, and explains each step of his work. I use him every year for my annual HVAC check-ups and you should too!"
+17
From average costs to expert advice, get all the answers you need to get your job done.
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