How much do water line services typically cost?
- Diamond Bar, California Average$1,678
- Typical Range$799 - $3,731
- Low End - High End$289 - $5,500
All Plumbing
"They did a great job. Showed up on time and completed the job."
58C23B1A9B0A43F10FBC1FEF3B9A99EA1E13C7F08DA56AE3FED94D82C09FCAA8 E. in September 2025

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
Additions, Upgrades,Remodels, Water, Sewer, and Gas Re-pipes, Tankless, Tank type Water Heaters Installs or Replacements , and 1 more
"Robert went above and beyond installing our water heater. Robert tied the cooper cold and hot water pipes to a 2 x 4 so they won't rattle and when water begins to flow. He put installation around the hot water pipe which will make it more efficient in the winter. Robert also took the time to explain the various features of the Bradford White Water Heater. Overall, Robert takes his time to make sure that the install is done all up to code."
NEIL M. in December 2024
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


Drain Clog or Blockage - Clear, Sump Pump - Install - Repair
"I would definitely recommend Hedrick and Young Plumbing. Very professional Did a great job!"
lynda M. in June 2017

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
Diamond Bar Plumbers are rated 4.8 out of 5 based on 1209 reviews of 1209 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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