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TRUSTED BY DIAMOND BAR, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified plumbing services reviews

Verified Reviews for Plumbing pros in Diamond Bar, CA

*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

Find Plumbers in Diamond Bar

Avatar for J I G Plumbing
J I G Plumbing
4.9(
98
)
Water Heater - Install or ReplaceDrain Clog or Blockage - ClearSewer Main - Install, Replace or Repair+6 more

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"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."
Completed Install
Preparing new install
Completed Install
Completed Install
Completed Install

+8

19 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
171
)
Faucets, Fixtures and Pipes - Repair or ReplaceGas PipingWater Main - Install, Replace or Repair+18 more

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!"
Ruben installs a new drainage system under a customers home. Working in a crawl space is rough, but we do what is needed.
Backing up? Got roots? Blast those roots out with a Hydro Jetter! We use a wart hog nozzle that combines controlled rotation with a unique 8 jet cutting configuration optimized for removing roots. It’s better with a jetter! Call us! We got this! ??
Sewer Line Camera
No drain clog too big or small, Western Rooter covers them all! Justin clearing a Kitchen sink back-up after the Memorial holiday.
HALO 5 whole house water filtration system.

+542

Response time12 hrs
Response rate100%
21 neighbors recently requested a quote
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Avatar for MVP Plumbing, Inc.
MVP Plumbing, Inc.
4.7(
669
)
Drain Line Breakage - Camera LocateGas PipingSewer Main - Clear+5 more

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..."
MVP Plumbing, Inc
MVP Plumbing, Inc
MVP Plumbing, Inc
MVP Plumbing, Inc
Response time4 hrs
Response rate96%
Recommended by97%of homeowners
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Avatar for SoCal Plumbing & Rooter, Inc.
SoCal Plumbing & Rooter, Inc.
4.7(
285
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearWater Heater - Install or Replace+5 more

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"We had a plumber blow us off for three days. Socal plumbing was here and done within 2 hours. Nice guys, clean and fast."
Response time4 hrs
32 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for RJ'S PLUMBING CHAMPS CORP
RJ'S PLUMBING CHAMPS CORP
4.7(
31
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+4 more

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!"
Response time5 hrs
Response rate96%
7 neighbors recently requested a quote
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Avatar for AMZ Plumbing, Inc.
AMZ Plumbing, Inc.
4.9(
43
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+2 more

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.

My jobs
My jobs
1 neighbors recently requested a quote
Recommended by70%of homeowners
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Avatar for Dan Shop LLC
Dan Shop LLC
4.9(
16
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessFaucets, Fixtures and Pipes - Repair or Replace

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 ."
Root & Fencing Footings Removal
Footings & Root Pullout
Footing Pull out
Repair P Trap
Repair P Trap

+16

Response time1 day
6 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Do It Right Plumbers, Inc.
Do It Right Plumbers, Inc.
4.1(
600
)
Faucets, Fixtures and Pipes - Repair or ReplaceWater Heater - Install or ReplaceDrain Clog or Blockage - Clear+14 more

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."
OUR WORK
OUR WORK
OUR WORK
OUR WORK
OUR WORK

+1

Response time8 hrs
190 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for Kahuna Comfort Plumbing Heating & Air
Kahuna Comfort Plumbing Heating & Air
4.6(
372
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearSewer Main - Clear+3 more

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."
Roots
Roots
Clean out
Liner
Two way clean out

+9

Response time30 mins
412 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for RT Olson Plumbing, Heating and Air Conditioning
RT Olson Plumbing, Heating and Air Conditioning
4.5(
217
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearDrain Line Breakage - Camera Locate+8 more

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!"
New AC Installation
Tankless water heater
New Thermostat
Shower head system installation
Helping customer with new water filtration system

+57

Response time9 hrs
2 neighbors recently requested a quote
Recommended by90%of homeowners
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Showing 1-10 of 948
Plumbing questions, answered by experts

Homeowners make a major mistake by skipping the required permit process for plumbing, which creates serious complications during property sales. Residents also ignore existing scale buildup from hard water, causing new fixtures to fail prematurely. Another error involves installing non-compliant fixtures that violate CA water efficiency standards. Finally, modifying gas lines without a licensed professional poses extreme safety risks.

Helpful?

Diamond Bar experiences a semi-arid climate with intense dry spells and heavy winter rains. Drought conditions trigger mandatory water restrictions, shaping what outdoor plumbing you can install. The region's expansive clay soils shift during dry periods, putting severe stress on underground sewer lines. Additionally, hard water accelerates scale buildup inside pipes, requiring frequent maintenance for plumbing systems across CA.

Helpful?

A variety of certified specialists handle plumbing in Diamond Bar. General contractors manage large remodels by coordinating licensed subcontractors. Sewer and drain specialists inspect aging clay pipes using video cameras. Landscape contractors install outdoor irrigation systems and test backflow prevention devices. For new construction, fire sprinkler contractors ensure your home meets strict safety codes with proper indoor fire suppression systems.

Helpful?

Start by locating your main water shutoff valve near the front of your property. For slow drains, use a standard plunger or drain snake. Avoid harsh chemical cleaners, as they damage older pipes common in Diamond Bar. You can safely replace internal toilet components or faucet washers yourself. Stop immediately and call a local professional if you smell gas while addressing water heater plumbing.

Helpful?

Review your homeowner association rules to confirm any restrictions on visible exterior modifications. Always verify that your chosen contractor holds an active license for plumbing in CA. Call the underground service alert line two days before digging to prevent severe hazards. Finally, check local water district guidelines to ensure your new fixtures meet all mandatory efficiency and backflow prevention standards.

Helpful?

The Diamond Bar, CA homeowners’ guide to plumbing services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles