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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

Find Plumbers in Diamond Bar

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

"I used HomeAdvisor to get 3 quotes for a gas pipe run that was approximately 65 feet for a fire pit and teed off for a future gas grill. I had a total of 4 quotes, one from my regular plumber that I have used for about 4 years and the 3 from Home Advisor. MVP Plumbing not only gave me the best quote but were also very detailed on what and how they were going to accomplish the job. No questions were left unanswered and Cesar was very detailed whenever I asked any questions. These guys are top notch when it comes to service and I am so happy with MVP Plumbing that from here on out I will be calling them from any plumbing service! Great Job MVP Plumbing!"
MVP Plumbing, Inc
MVP Plumbing, Inc
MVP Plumbing, Inc
MVP Plumbing, Inc
Response time4 hrs
Response rate96%
Recommended by97%of homeowners
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%
16 neighbors recently requested a quote
Avatar for Dan Shop LLC
Dan Shop LLC
4.9(
16
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"This young man is living proof that you should not judge a book by itâ s cover . When he first arrived to my site I assumed he would be inexperienced because of how young he looks , but man was i wrong . . Heâ s one talented guy. Great work ethicâ s and knows just how to get the job done right . I had him dig all my trenches for my plumbing lines and he did a nice job grading everything. I litterally just had to come in and shade the trench with some sand . He also knows a lot about plumbing . I had some plumbers out on my job and it turns out the guy i hired to grade my trenches was a better plumber then the plumbers i hired to plumb!! 5 stars . Will definitely be calling him back out on the next one ."
Root & Fencing Footings Removal
Footings & Root Pullout
Footing Pull out
Repair P Trap
Repair P Trap

+16

Response time1 day
5 neighbors recently requested a quote
Recommended by92%of homeowners
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

"Do it Right Plumber is the best plumber I experienced so far. Their technician Mr. Dakota Dulmage is so knowledgeable, reliable and responsible. Their efficiency to my project is another reason I highly recommend this plumber to my friends. I sure will hire this professional plumber for all my future plumbing projects."
OUR WORK
OUR WORK
OUR WORK
OUR WORK
OUR WORK

+1

Response time8 hrs
249 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Kahuna Comfort Plumbing Heating & Air
Kahuna Comfort Plumbing Heating & Air
4.6(
376
)
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

"HomeX technician Eddie replaced a broken water shut off valve in the bathroom & installed a replacement kitchen faucet. He was knowledgeable, friendly, efficient & responded to my emergency call within the hour. The HomeX office & dispatcher were very friendly & helpful. This is the second time HomeX has come to my rescue to take care of my plumbing problems. I will definitely call them next time I need a plumber."
Roots
Roots
Clean out
Liner
Two way clean out

+9

Response time30 mins
392 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Rapid Rescue Rooter & Plumbing
Rapid Rescue Rooter & Plumbing
5.0(
13
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+22 more

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"We’ve had so many plumbing projects over the years and have always used Rapid Rescue. They have replaced our water heater, completely plumbed two bathrooms & worked on the house mainline as well as the gas line and hooking up the water lines for the washer & dryer. They are honest, reliable and affordable. The work they have done has been top notch and it lasts. I highly recommend Wes and Rapid Rescue for all of your plumbing needs."
Old plumbing
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel

+18

Recommended by76%of homeowners
Avatar for A2Z Plumbing
A2Z Plumbing
5.0(
13
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Install - For Business+1 more

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2019

Credit card accepted

Offers commercial services

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

project photos
10 neighbors recently requested a quote
Recommended by84%of homeowners
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Showing 1-10 of 960
Plumbing questions, answered by experts

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?

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?

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?

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?

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?

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.