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TRUSTED BY DIAMOND BAR, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon1.6k+
    Verified toilet services reviews

Top-Rated Toilet pros in Diamond Bar - Updated Nov 2026

Avatar for J I G Plumbing
J I G Plumbing
4.9(
98
)
Drain Clog or Blockage - Clear

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

40 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearFaucets, Fixtures and Pipes - Repair or Replace - For Business

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"The technician arrived at the start of the 2 hour window. On time! Very professional. Explained options for dealing with my toilet leak. I chose to replace the toilet and gave him guidlines for the new toilet. He went to Home Depot, acquired the toilet returned promptly and installed it in a timely manner. After which he broke down and explained the itemized charges. After paying for the work thru my credit card, I received an e-mail summary right away...One major concern that I had in hiring Western Rooter & Plumbing was that their technicians had been vaccinated for Covid 19. I had been referred to Western earlier this year by my condo HOA for a common area leak repair in my unit. I was assured by the dispatcher that the technician coming to my condo was vaccinated against Covid. So when I had this toilet leak problem 6 months later that I had to pay for, out of a multitude of plumbing companies, I went back to Western Rooter & Plumbing after receiving the same assurance."
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%
10 neighbors recently requested a quote
Avatar for SoCal Plumbing & Rooter, Inc.
SoCal Plumbing & Rooter, Inc.
4.7(
286
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - Clear

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Johnny was on time, came fully prepared, friendly, and had a great attitude. Ignore those expensive "smell good" plumber commercials! Replaced 2 toilet flanges and reset both toilets for a third less than competitor's quote! I'm not looking forward to more plumbing problems in this 60 year old house, but I now know who to call!"
Response time4 hrs
13 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for The Sewer Boyz Inc
The Sewer Boyz Inc
5.0(
18
)
Drain Clog or Blockage - Clear

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Jonathan was a great hire. He came and worked with my schedule and came on a quick short notice. He came for a clogged toilet and swapped my garbage disposal. The next day we clogged the toilet again and he came back within an hour to fix it again for no charge. Pricing is very reasonable and is much lower than other plumbers. I wouldn’t hesitate to hire him again. I plan to have my pipes looked at with a camera because I can’t have this keep happening."
70 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 - Clear

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Danshop just fixed my main sewer line, and I couldnt be happier with the outcome! Throughout, their crew demonstrated efficiency, expertise, and professionalism. Now that my sewage line is in excellent shape, Im really pleased with Danshops assistance. For any plumbing needs, especially large repairs like this one, I highly recommend Danshop."
Root & Fencing Footings Removal
Footings & Root Pullout
Footing Pull out
Repair P Trap
Repair P Trap

+16

Response time1 day
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for So-Cal 1 Plumbing & Rooter
So-Cal 1 Plumbing & Rooter
5.0(
41
)
Drain Clog or Blockage - Clear

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Emergency services offered

"Very grateful for Fed! My Momâ s house had an issue with water not draining properly. Called Fed for a quote; he showed up the next morning and got to work on the issue right away. He was working by himself for awhile since it was Sunday, and had to dig through tons of rocks and roots since the land in our area are filled with stones. There were roots in the sewer line as well as buildup in the pipes; the pipes were so clogged that there was barely what seemed to be 1/8th or so of the pipe where the outgoing water/waste could flow through. He replaced parts of the line with pipes which roots would not be able to penetrate through, which gave us peace of mind as there are a lot of trees in our area. Fed and his team also added a sewer access and he replaced the filters in the toilet tanks as well. Thank you so much for helping us resolve this huge plumbing issue! Fed was honest, reliable, and friendly. Would highly recommend!"
repair
full house redrain
full house redrain
full house redrain
sewer repair

+27

Response time4 hrs
Response rate99%
1 neighbors recently requested a quote
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Toilets FAQs, answered by experts

If your toilet won’t stop running, you might have a bad fill valve. This may be the case if the valve has calcium or debris buildup, is cracked, or shows visible signs of wear and tear. A bad fill valve may also be the culprit if you’ve already checked the flapper and chain and adjusted the fill height to no avail.

First, check that you have cut off the water supply to your toilet. This is a project that can only be done safely if running water cannot reach your toilet fixture. If you're seeing water trickle out after you've confirmed that the water supply is shut off, you can probably rest assured that what you're seeing isn't a problem. It's common for leftover water to spill out when you're removing your toilet's fill valve. If something goes wrong while you're working on your toilet, you'll need to look at your home's policy to see if your homeowner insurance covers water damage.

While you shouldn’t increase the flow of your low-flow toilet by adjusting the water level in the toilet bowl set by the manufacturer, you can make the flow as efficient as possible by ensuring the rim jets under the rim are unobstructed. To do this, use a mirror to look under the rim and scrub them with a toothbrush or a small wire to clear any debris stuck in the holes. You can also watch for leaks, make sure the internal components are in good shape, and replace them if necessary.

Yes, you can install a basement bathroom without breaking concrete by using an upflush toilet system, which includes a macerator pump. These systems sit on top of the concrete floor, so you don't have to drill into it to install plumbing. The macerator pump breaks up waste until it is soft enough to pass through a discharge pipe to the main sewage line. This method saves you time and money by bypassing the need to break concrete to connect drain pipes.

Hiring an emergency plumber is expensive because of the urgency and inconvenience, but there are a few things you can do to help keep costs down:

  • Minimize water damage by shutting off your water main 

  • Clean up pooling water immediately to reduce damage and mold growth

  • Avoid using fixtures if you have a clog or septic system backup

  • Verify that your plumber is licensed before hiring

  • Call a few plumbers for estimates if you can afford a short delay in getting service

The Diamond Bar, CA homeowners’ guide to toilet services

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