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TRUSTED BY DIAMOND BAR, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon34
    Verified drain pipe installations reviews

Top-Rated Drain pipe installers in Diamond Bar - Updated Nov 2026

Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Basement Drainage Channels - InstallSump Pump or Interior Foundation Drains - Install

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Western Rooter to the rescue again! I had a small underground leak which appeared to be due to a bad sprinkler valve. A sprinkler repair company determined that it was not a bad sprinkler valve and thought it was due to a leak in the main water line. Daniel and Alex dug down to find that the leak was coming from a very old (at least 36 years) broken pvc line. After much testing and head scratching to try to figure out where the water was coming from, they decided to "chase the pipe." After much digging, they found that the very old broken pvc pipe was hooked up to a sprinkler valve that was buried 18 inches underground that had not been capped--only turned off. Roots from a nearby tree had opened the valve which caused the leak--crazy! The current sprinkler system has been the same one since we moved into the house in 1988. It took 36 years for the underground leak to occur!"
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%
9 neighbors recently requested a quote
Avatar for ROOTER ER & PLUMBING INC
ROOTER ER & PLUMBING INC
4.6(
24
)
Sump Pump or Interior Foundation Drains - Install

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Anthony has done a wonderful job replacing my bathtub pipes at an extremely great low price. I highly recommend Rotor ER & Plumbing Inc. I panicked because I saw water on my downstairs ceiling because my bathtub upstairs was leaking showing the rectangular water print on my downstairs ceiling. I quickly called ER & Plumbing Inc. and Anthony came out immediately (same day witihin 30 min) and quickly assessed the problem. The pipes under the tub had a huge leak on a fairly new home (6 yrs old). The pipes were to large for the area under the tub which caused the pipes to crack. I am disabled and needed to soak my fractured back. Anthony showed up the next day with new pipes and all of his equipment and fixed the pipes the same day. Wonderful job and at a reasonable price. Very friendly and polite to. If ever I need plumbing again I will definitely call them and highly recommend them. Thank you Anthony and Phillip you guys are great!!!! ;-)"
tankless water heater uo to code
storm drain
same as above
gas line install
gas line install

+6

Response time11 hrs
Response rate94%
4 neighbors recently requested a quote
Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Foundation Drainage - Install or ReplaceBasement Drainage Channels - Install

Serving Diamond Bar, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Excellently well! Sandy helped me coordinate the inspection expediently. We were on a tight timeline and she pulled some strings so we could get the inspection done in time. Our inspector/structural engineer, Erinn, was personable, thorough, knowledgeable and timely. I highly recommend him and Alpha Structural!"
Basement Addition
Basement Expansion
Caisson Supported Retaining Wall
Cantilevered Deck Design Build
Deck Expansion and Slope Failure with Retaining Wall

+323

Response time10 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
3.5(
176
)
Sump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Diamond Bar, CA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Warranties offered

"Angel and Andrew did a great job on raising the concrete on my patio. One side was sinking which caused the other side to lift up. They were able to even out the cement so now it looks great. Thank you for working so hard to fix it."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time11 hrs
91 neighbors recently requested a quote
Recommended by38%of homeowners
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Drain Pipe Installation FAQs, answered by experts

Anything from debris, rust, ice, and even poor installation can cause clogs in your plumbing vents. Some signs of a clog include slow drains, gurgling sounds in drains and toilets, and bad odors. The bad odors are the most concerning, as these can include methane and hydrogen sulfide. Contact a plumber to come take a look if you notice any of these signs.

To unclog the drain pipe, remove the machine's drain hose from the pipe or sink drain, being careful to contain any water in it. Next, use a plunger for sink drains or a plumbing snake for a wall drain. Test the repair by pouring a small amount of water into the pipe before trying it with a laundry load.

Knowing the signs can alert you to a clogged drain line. Clogs cause slow drainage or cause no drainage (if there’s a complete blockage). You may also notice foul odors, gurgling noises, water backing up in other appliances on the same line, or a poorly flushing toilet. If you experience any of these issues and think your line might be clogged, call a plumber.

You can drain a hot tub very quickly by using a submersible pump rather than the hose-sized drain at the bottom exterior of the tub. A pump can move up to 30 gallons per minute, draining your hot tub in no time. Using the regular drain can take up to two hours.

Chemical drain cleaners can work to clear clogs in pipes, but their use should be approached with caution. These harsh chemicals can damage pipes over time, and they can also harm the environment. Use them sparingly and consider alternative methods such as using a plunger or a drain snake. If you have concerns about a persistent clog, it's best to consult a professional who can safely and effectively address the issue without causing further damage to your plumbing system.

The Diamond Bar, CA homeowners’ guide to drain pipe installations

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