Get matched with top tankless water heater installers in O Fallon, MO

"I called Hosack on a Thursday morning because my water heater had died, and because of their great Angi reviews. They had a plumber, Kent, at my house before noon. Kent was fantastic ... great work, extremely knowledgeable, and VERY customer oriented. I'm extremely happy with Hosack's responsiveness, quality of work and attention to detail. Going forward, they (and I hope Kent!) are my plumbers of choice. I highly recommend!"

"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!"

"Steve arrived on time, quickly diagnosed the problem with the water heater, gave me options to fix/replace without trying to steer me to one option or the other, and answered my questions. I opted for replacement and he got the appointment set up for the next day so we wouldn't be without hot water any longer than necessary."

"Remove electric water heater and install a new high efficiency gas water heater."

"Cody was professional and the install was done in a timely manner"

"Awesome. Showed up on time. Courteous. Clean. Of the several company reps that I spoke with Austine Ambassador Plumbing) gave me the most confidence. I will definitely work with them again!"

"I had a 15 year old system that was nearing the end of its life span. During the quote process, they gave me options based on what was hoping to spend. The quote they provided for a higher efficiency system made the decision pretty easy. The install team was extremely professional and I couldnâ t be happier with my new HVAC system."

"Seems I was spending a ridiculous amount of money on electricity because my central unit was not operating correctly. I now have flowing cold air."

"They called me first thing in the morning and John was there before 10. Then they worked it out that they were able to install my new water heater that day, within a few hours. They were courteousness and very professional. I was very impressed with the entire experience."

"Jacob did a fabulous job replacing my water heater! He was professional and timely!"