Get matched with top tankless water heater repair pros in Ontario, CA

"Did a $59 consult only. Turned out the cost of repairing the old heater was almost as much as a new one, so we got a new one, and handled the install ourselves. Luis B was great, knowledgeable, friendly, didn't try to upcharge just to sell a heater, which we appreciated. Gave us an honest evaluation, several options, and was right on time. I will say, though, that the company failed to call me when he was on his way... not a big deal. All in all a good experience."

"The repair guy came within the estimated time and resolved my water heater issue, no charge."

"very helpful and explained the process of fixing my leak"

"I bought a hot water heater to replace the one that calcified due to Anaheim water. Technicians : Marty, Parker and Shane were excellent. I would recommend this company RT Olsen Plumbing Heating and Air Conditioning. They took out my old water heater and halled it away. The new water heater was installed with no problems. I Gave this company and there excellent crew 5 Star"

"They took out my old ratty water heater, and replaced it with a new shiny one. Great deal for $1,800. Even swept up the water heater closet and left it cleaner than before he came. Would use again."

"They showed up as scheduled. Work hard to do and excellent installation of a new hot water heater. When I called them about water pressure issues they came in 15 minutes to resolve."

"My water heater wasn't heating the water. Serviceman taught me how to light the pilot. He was very polite and helpful. I was very impressed with the service he provided."

"On call for emergency repairs, very reliable and knowledgeable."

"Prompt service — Daniel came out the same day to perform routine maintenance on my tankless water heater. He was professional, efficient, and explained everything clearly. He also gave me helpful guidance about planning and budgeting for a future replacement, which made the process feel much less stressful. I appreciated the transparency!"

"Mike was great! He was friendly and knowledgeable. He let me know all the options for replacing my water heater and did the work quickly and neatly. Will definitely be calling him again!"