How much do tankless water heater repair services typically cost?
- Diamond Bar, California Average$631
- Typical Range$200 - $631
- Low End - High End$95 - $2,100
Plumbing
"Rueben, was friendly, fast and efficient. Cleared my clogging problem and all in good time. Would not hesitiate to call Empire Plumbing again. Good job Empire and Rueben, you are #1 in my book."
Lorelei S. in April 2017

HVAC NEEDS, Plumbing, Performance Air Conditioning , and 1 more
"I recently had the pleasure of working with Authority Plumbing, and I cannot recommend them highly enough. From the outset, they came to my home with a plan that demonstrated their deep understanding of plumbing challenges. Clayton, the technician assigned to my project, was exceptional. He took the time to listen to my concerns and opinions, making sure that I felt heard and valued. He explained each step, ensuring I was comfortable with the plan before proceeding. When a sub-contractor was brought on to streamline the process started making several errors, Clayton quickly took charge of the situation. They fixed these mistakes, alongside resolving my initial drainage issues, at no additional expense, was truly remarkable. The team demonstrated a genuine commitment to ensuring the work was completed to the highest standard. Thanks to their efforts, my plumbing issues have been resolved. I would not hesitate to recommend them to anyone in need of professional plumbing services."
AB684F47244A0CD28AF45256BEB426A4F6473444084C8DE5CE96E4E7803186A5 1. in October 2025
plumbing, Plumbing, 10% off for first time customers
"Very professional, always on time. Would hire them again"
Linda S. in December 2022

Residential Plumbing, Commercial Plumbing
"Great company! They will be the first I call next time I need any plumbing work done."
Richard M. in December 2019

Sewer Camera Inspections and Trenchless Sewer Repair, Certified Tankless W/H Installers - Nortiz, Navien, Rheem and Rinnai, Water Heater Repair and Installation Experts , and 2 more
"I had a break in my water main, leaking about a half-gallon per minute (720 gallons/day). By the time the water company inspector left, it was almost noon and I still had to find a plumber. Do It Right Plumbers scheduled me for immediate service, and Dakota was at my home that same afternoon. He restored the water service to my home, while bypassing the water main. This stopped the leak and allowed me and my family to go on with our day as if there was no water main problem. He explained my options and gave me exact prices. A lot of digging was needed, there were complications, and extra labor and hours were needed because the burst pipe was underneath the sidewalk. All of the dirt was shoveled on to protective tarps. When the water needed to be shut off, the down times were really brief. When everything was done, Dakota had not only replaced the water main, but also the water pressure regulator, the hose faucet, and all of the connections and valves. Then he replaced all of the dirt, re-planted the shrubs that had been removed during the job, and left the area looking as if nothing had happened. As for the final price, it was very fair, and exactly as he had quoted---not a penny more! I had a water main break before, and I remember how disruptive, expensive and stressful the last job was. Dakota really took a lot of the pain out of this latest ordeal. As hard as Dakota worked on the job, he worked equally hard to make this job as easy on me and my family as possible. If any future plumbing needs arise, I will be calling Do It Right Plumbers."
Jeff T. in October 2022
slab leaks, leak detection, water heaters , and 2 more
"The pro was very nice and did very quality work. I would highly recommend him."
Paul B. in December 2017
Plumbing and gas, Whole house filtration, All leaks (underground, in wall, in slab) , and 2 more
"Anthony Fankhauser (Owner) is an exceedingly polite individual who provided detailed information on work to be accomplished. Unfortunately, the day my septic tank was being pumped coincided with a number of issues Anthony was experiencing on another job. For that reason, my task was delayed until after 6:00 PM. When Anthony arrived late in the evening to complete the work, he performed camera inspections and explained some minor issues. There was no indication of irritation or frustration due to the issues related to his other task. This was refreshing since I sincerely expected him to vent regarding problems experienced with his other work. I seriously recommend using Anthonyâ s services if you have plumbing issues."
Wayne M. in November 2023
Concrete, Painting, Roofing , and 1 more
"We hired McCormick for a bathroom remodel, and the whole process was smooth and professional. Khaled helped us make smart choices on design and materials that worked for both our budget and style. Now, our bathroom feels like a spa every time we step in. I appreciate the quality and attention to detail. These folks definitely know what they?re doing!"
Jackson M J. in December 2024
Diamond Bar Plumbers are rated 4.8 out of 5 based on 1388 reviews of 1388 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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