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Plumbers in Diamond Bar, CA

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Service Pros

    CP
    Claremont, CA·

    All Plumbing

    "The experience I had with Complete Plumbing & Rooter was to tell them I got a plumber to do the job, but after talking to Paul, he was very professional and explained what set their company apart when it comes to Water Heaters Installations. They set me two men to do the job, and it was done in 1-1/2 Hour. I would highly recommend them."

    150C80B5A1F5F96F16E3B5E21A34DF2A0D3FE7FCA9DA0F32080F579812D941B4 2. in November 2025

    Pro Bright Construction Inc Logo

    Plumbing, Flood services, Additions , and 1 more

    "Gus at Pro Bright went above and beyond on a Sunday to detect and repair our master bedroom ceiling leak. With water to the house turned off at the street we were desperate to find a contractor who could respond right away. Other contractors offered appointments Monday or Tuesday. Gus responded that he could be here in 2 hours to repair the leaking pipe, but could have Jeff, his water mitigation project manager here within 30 minutes to assess the water damage. These guys were both so professional. They shared the process, timeline and costs, and were prepared to start right away. They promptly moved my disabled husband and his adjustable bed to another room away from the work area assuring his comfort and safety. Gus repaired the overhead leak and turned the water back on. Jeff scheduled the water mitigation process to begin first thing Monday morning. We are especially grateful for the kindness these 2 professionals showed us in our time of need."

    BD5D26C365A20ADB97FBFAF2BD668D7F95AF49BD04D8FF35A4A4FA12B9FA7028 8. in December 2025

    The Handy Juan - Unlicensed Contractor Logo
    Lake Alsenor, CA·

    Plumbing Installations & Repairs, Handyman Services, Interior and Exterior Painting Solutions , and 1 more

    "Very professional in and out with the work , makes it look easy , humble very respectable, knowledgeable in like craft ,my go to handyman! "The project was top notch. Not only did they consistently show up on time, but they finished the project early and were willing to reschedule the final walkthrough multiple times to accommodate our schedule. Final project turned out great!""

    Blanca A. in December 2022

    MH
    West Hills, CA·

    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

    Echo Plumbing Logo
    Fontana, CA·

    Plumbing

    "Very satisfied, on time ,"

    James L. in May 2024

    Taylor's Plumbing Logo
    La Habra, CA·

    Plumbing

    "I was extremely pleased with this company. John Taylor, the owner, does the work himself. He is very accommodating to my requests and schedule. Highly, highly recommended."

    Jane R. in September 2016

    JRC Plumbing -Unlicensed Contractor Logo
    La Habra, CA·

    Plumbing, I do a lot of different plumbing jobs, my expertly is unclogging any drain in your house or business., Plumbing , and 3 more

    "Is very patiently working on our sink issue. Appreciated that he explained everything that he was doing and why it needed to be done and answered all of our concerns. If we ever have this issue again, I wouldn’t hesistate to contact your company."

    9B90295825AA9D31E5BD10ADD837D8D0488CB1B0D23BF797FBF8FB11D4B7457A B. in June 2025

    ZP
    Valencia, CA·

    faucets, Drain Clog Clearage

    "Responsive, friendly and did great work!"

    Louanne S. in May 2021

    GP

    In business since 1939

    Corona, CA·

    About us: "Established in 1939, we do residential HVAC and plumbing the right way, not the easy way. At Goettl, we are total home comfort solution providers, enhancing the quality of life in the communities we serve. As Sadie Certified professionals, equipped with cutting-edge tools and technology, we deliver a superior customer experience, one home at a time."

    HP
    Monrovia, CA·

    Remodeling

    "Perfect job. Happy with results. Kept the place clean during the process and that was a blessing. Personable company!"

    VALERIE H. in November 2020

    HS

    pipeline, sewer sanitation, Plumbing

    "Work professionally, pumping up septic with their promotion price. Just be patient when waiting for arrival."

    Margaret C. in June 2024

    Cruz Plumbing and Rooter Services Logo
    Upland, CA·

    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

    JM's Royal Flush & Rooting - Unlicensed Contactor Logo
    Glendora, CA·

    "Jeffery did a great job with installation of 3 toilets and other plumbing work. I just wish I could find him again, his contact number changed 😔."

    Candy B. in November 2024

    Austin Hill Plumbing Logo

    In business since 2022

    San Dimas, CA·

    Plumbing Service and Repairs

    About us: "We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Austin Hill Plumbing strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction."

    RE

    Plumbing and gas, Whole house filtration, All leaks (underground, in wall, in slab) , and 2 more

    "The project was top notch and saved me hundreds off what another plumber's estimate. Anthony showed up on time and accommodated our schedule. I would definitely use his company again."

    P W. in October 2023

    So-Cal 1 Plumbing & Rooter Logo
    Fullerton, CA·

    Plumbing, Emergency Plumbing, Modern Plumbing , and 3 more

    "Great service and work from Miguel and team. I would hire them again. What originally was a slow draining sewer line turned into a root infested backup. Miguel was able to scope the drain and visualize the root of the problem. They were prepared to start digging and had the tools and supplies on the truck to get the job completed. He clearly explained the discovery, repair, and installation process as well as potential other root intrusion spots. After the dig, the soil and grass was replaced and can hardly tell that any work was done. They also cleaned the dirt/mud on the concrete walk way. Thank you Miguel and team for the great work."

    C74DB3546EE5C57C63F5CF31C7AA5E9AD6078DB5243BB2CAF29B9FD78BAB6957 B. in December 2025

    RP

    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

    American Standard Logo
    Grand Prairie, TX·

    Bathroom Remodel

    "The professional was very knowledgeable. Help my mother, 74 years old selected the appropriate style for my Mother's needs."

    Stacey H. in December 2020

    EP
    Ontario, CA·

    Plumbing

    "Ruben was so professional he did a great job answered all my questions and made my nightmare go away when he fixed my sink .. Would refer this company & specifically this young man to all my neibors, family & friends.. ty again Rueben & Empire plumbing..."

    Cynthia G. in October 2017

    AP

    "After getting different quotations from different construction companies, even Home depot, AGL gives us reasonable pricing options. They did such a good job on remodeling two of my bathrooms we had a special request canceling a door and opening another, and the outcome was amazing. We went from having one bathroom and a half to two full bathrooms. After seeing the amazing job that they did with the bathroom we decided to also remodeling our kitchen with them it was the best decision."

    01C6F71E12FE3E8FF59B9B25576C427E36A6F8980A0A91C2F6BEEEF5ADD0EC52 8. in December 2025

    B.LA.C Rooter Service-Unlicensed Contractor Logo
    Los Angeles, CA·

    Plumbing

    "Ivan and derrik kept me informed all the way through the project. 60 ft. of sewer line Perfect job."

    JERRY R. in June 2020

    BEHRCO, Inc. Logo
    Placentia, CA·

    Repair and maintenance, Custom shower and bathroom design and remodel., Walk-n Tub and Shower sale and installation. , and 1 more

    "Great guy... Nice job...fair price.... Can't ask for much more.... Did a sink install that required trimming our granite countertop. Made it a priority to keep the work area clean. Very satisfied ."

    A K. in August 2015

    American Standard Walk-In Tubs Logo
    Grand Prairie, TX·

    Walk-In Tubs, Walk-In Shower, ADA Shower

    "Very professionally completed my walk-in shower with safety bars, pull down seat, etc. Friendly, great on cleanup, and determined to satisfy customer."

    Gloria S. in February 2023

    FM

    "I couldnâ t be happier with the work and communication by Wilson. I would happily hire him again and will recommend him and Flow Master to others."

    Lisa H. in October 2023

    Reliable Plumbing & Rooter Logo
    Brea, CA·

    Plumbing Service and Repair Experts, Water Heater Install Replace and Repair Specialists

    "I am Very Pleased with this company ! They got it done the same day I called and their work was excellent , very efficient and knowledgeable. I was pleased with the price. If I need any more work done, I will definitely be calling them back."

    Linda M. in November 2024

Showing 1-25 of 38 results

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HomeAdvisor Community Rating

Overall Rating:

Diamond Bar Plumbers are rated 4.8 out of 5 based on 2321 reviews of 2321 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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Recent Job Requests for Plumbers in Diamond Bar, CA

  • Project Location: Diamond Bar, CA
    Date: 01/30/24
    Are you updating a shower or a bathtub?: Shower
    Covered by Insurance: No
    Are you considering changing the floorplan of your bathroom?: Yes
    Which of the following will you need moved or installed in your bathroom remodel? (Check all that apply): Shower/bath
    Comment: Would like to gut The bathroom and start over new shower in the corner new toilet new to sink countertop with cabinets new flooring and painting
  • Project Location: Diamond Bar, CA
    Date: 01/30/24
    Location: Home
    Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
  • Project Location: Diamond Bar, CA
    Date: 01/30/24
    Are you updating a shower or a bathtub?: Shower
    Covered by Insurance: No
    Which of the following will you need moved or installed in your bathroom remodel? (Check all that apply): Shower/bath
    Comment: Replace drain pipe. Replace shower enclosure
  • Project Location: Diamond Bar, CA
    Date: 01/30/24
    Location: Home
    Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
  • Project Location: Diamond Bar, CA
    Date: 01/24/24
    Type of Water Heater: Storage tank
    Type of heat source : Natural gas
    Comment: Have purchased a 40 gallon water heater from lowe's and need to have new heater installed and old heater hauled away.
  • Project Location: Diamond Bar, CA
    Date: 01/21/24
    Location: Home
    What kind of water heater do you want repaired?: Tankless
    What is the heat source for the water heater?: Natural gas
    Comment: Takagi tankless water heater Model No. AT-K4U-OS-N . Water is not hot at all. Tried to reset several times but would not be able to get the ignition to turn on.
  • Project Location: Diamond Bar, CA
    Date: 01/17/24
    Type of Water Heater: Storage tank
    Type of heat source : Natural gas
  • Project Location: Diamond Bar, CA
    Date: 01/12/24
    Covered by Insurance: No
    Which of the following will you need moved or installed in your bathroom remodel? (Check all that apply): Toilet

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