Get matched with top tankless water heater repair pros in Diamond Bar, 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."

"The plumber spent a lot of time just trying to figure out the source of the hidden leak. He had a lot of patience. The quality of work was good as was the price. I would definitely hire them again."

"Job went great! Bob gave me a very competitive estimate for the Re-Pipe and went the extra mile in recommending materials for the walk on shower I had discussed with him. I accepted his bid and the work was scheduled: replace the main water line from the meter to the house, Re-Pipe all hot and cold water lines inside the home, demo the existing master tub & shower and replace with walk in shower, repair all drywall and ceiling access points and texture as required. Job went great! The main line and Re-Pipe were done in the 4 days promised. The on-site supervisor, Rudy, was awesome and made sure everything was done perfectly. The walk in shower was delayed a day due to shopping damages to the product, but was quickly resolved by the crew as they tracked down an available replacement. A few unexpected problems came up but were quickly resolved to my complete satisfaction. I will keep their name handy for any future plumbing needs."

"Ruben came over and replaced our water heater this morning. Great guy, great service! We highly recommend Empire Plumbing."

"They called us quickly and got a plumber out within a few days. Super thorough - tested all pipes and water sources to diagnose the problem. They were able to perform maintenance on most bathrooms the same day and improve the water temperature in our showers. Gave helpful, non-biased advice on potential further plumbing improvements. We will likely call this company again for any and all future plumbing needs."

"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!"

"Wesley was fantastic! We were hoping to be able to extend the gas line from the fireplace to the stove but the piping was too small there to accommodate the stove we purchased. While he said it could be done, and was significantly less expensive, it may not be able to provide the 'power' the stove required. We chose to do it the right way, not the 'cheap' way, pricing was still reasonable for the amount of work that needed to be done. Highly recommended!!"

"They did a nice job and very fair on cost. I replaced a hot water heater so not the most complex job, but I recommend them."