4.5 
1.2k+ *The Angi rating for Plumbing companies in Diamond Bar, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.
*The HomeAdvisor rating for Plumbing companies in Diamond Bar, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.
Last update on March 14, 2025
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Plumber John from JIG Plumbing was professional, efficient, and hard-working. We were very pleased with the final result."
+8
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 1981
Free estimates
Emergency services offered
"Excellent service. The plumber, Tony, was very friendly and helpful. He went above and beyond to help restoring the plumbing I took apart myself. A thumb up! I will use the service again!"
+542
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"Leo is an Experienced plumber, He is a pro, and the service was great, The owner of this company Caesar was very helpful explaining the detail of the system and he give his recommendations..."
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"The plumbers arrived on time and were there until job was done to our satisfaction."
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
Welcome to AMZ Plumbing. We work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.
Serving Diamond Bar, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"Jose (with JRC Plumbing) did an excellent job replacing my kitchen faucet. He quickly responded to my request and was on time to the job site. He was clean and effecient (everything you hope for in a plumber inside your home)! His attention to the details (making sure the faucet was centered and no smudges) was definately appreciated. I highly recommend Jose for your next job!"
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Daniel was very helpful and knowledgeable he was able to get the job done on time and good price I would recommend him for your plumbing needs ."
+16
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2007
Emergency services offered
Warranties offered
"I purchased a water heater from Do It Right Plumbers . The tech, Chris, was on time and very thorough The installation went as smooth as could be. When the work was finished, you wouldn't have known any work had been done. It was that clean. Not only would I recommend them, but I also plan to use them in the future for my plumbing needs."
+1
Serving Diamond Bar, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"The plumber was punctual and communicated well with me."
+9
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Bob's crew was fantastic - from the testing of our water and consultation and installation of the system. Everything was transparent and pricing was great. Definitely will call Bob again for future plumbing needs. Very satisfied with his customer service and communication.Thanks Bob!"
+57
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