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Best sump pump installation pros near Diamond Bar, CA

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TRUSTED BY DIAMOND BAR, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified sump pump installation services reviews

Top-Rated Sump pump installation pros in Diamond Bar - Updated Nov 2026

Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Sump Pump or Interior Foundation Drains - Install

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"This is the 5th or 6th time Western Rooter and Plumbing does a plumbing job in my house over past 10 years. They installed softwater tank, replaced waterheater, fixed plumbing, and more. Always excellent"
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%
7 neighbors recently requested a quote
Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
36
)
Sump Pump or Interior Foundation Drains - Install

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"I Called to get an in person quote for a tankless water heater flush and left this job with a whole house filter and a fridge connection. When Michael first arrived we inspected the tankless unit and tested the water to conclude flushing was not my best option. He then walked me through my options for home filters and we decided on a Halo system. Michael was very well educated on the subject and gave me the best value filter for my needs. He installed the unit the next day in less than a few hours and left me with a flawless work of art. I couldn't be more impressed with the professionalism he brings to this trade! I also requested to hook up a fridge and he did that in what seemed like 30 minutes. He will be the only plumber I call from now on!! Thank you Michael!!!"
Plumbing - Drain Cleaning Project
Sewer cleaned of roots and ready for lining
Prepping pipe for lining by removing massive roots
Mixing resin for liners, this resin gardens to create a solid pipe
Sewer robot in the pipe

+26

Response time9 hrs
7 neighbors recently requested a quote
Recommended by67%of homeowners
Avatar for Ace’s Plumbing Services
Ace’s Plumbing Services
5.0(
20
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"We’ve used this plumbing company multiple times across several properties and have always had a great experience. Extremely knowledgeable, professional, and quick to respond whenever we need service. It’s hard to find honest plumbers with real experience, and these guys definitely know what they’re doing. Every job has been handled efficiently and with great attention to detail. Communication is always excellent, pricing is fair, and they consistently deliver quality work. We truly appreciate having someone reliable we can count on for our properties. Highly recommend to anyone looking for a dependable and experienced plumber. Five stars all the way."
Water Heater Installation
Valve/Regulator
Tankless Heater
Copper Spot Repair
Automatic Shutoff

+2

Avatar for 1 TOM PLUMBER ANAHEIM / BREA
1 TOM PLUMBER ANAHEIM / BREA
5.0(
21
)
Sump Pump - Repair or Replace

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Response was amazing and fast. Arrived on time and kept me fully informed. Professional with complete set of moisture/ leak detection tools. Answered all our questions. Would love to recommend them."
Leak Detection
Plumbing
Sewage Cleanup
Leak Detection
Plumbing

+70

Response time8 hrs
Response rate100%
28 neighbors recently requested a quote
Avatar for Redhead Rooter, Inc.
Redhead Rooter, Inc.
4.8(
43
)
Sump Pump or Interior Foundation Drains - InstallSump Pump - Repair or Replace

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"I had a last minute need for a kitchen faucet installation and was accommodated within 3 hours of making the call. Athen arrived within the time frame I was given, assessed the work area and product then began installation immediately. Everything was installed within an hour and the area was cleaned up before he left."
Response time7 hrs
360 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for ROOTER ER & PLUMBING INC
ROOTER ER & PLUMBING INC
4.6(
24
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I recently had the pleasure of working with Anthony Fankhauser from Rooter Er & Plumbing, and I can confidently say that he is the most professional plumber I have ever encountered. Our search for a reliable plumber began about six weeks ago when Anthony came over to provide us with a free estimate for some work needed in our home. From the start, he impressed us with his prompt response to our request on Angie's List, arriving the same day and offering valuable tips to make our shower remodel efficient and cost-effective. Throughout our interactions with various plumbers, Anthony stood out by taking the time to truly understand our needs and how he could assist us best. Despite the initial consultation not resulting in immediate work, Anthony remained responsive and proactive. Fast forward six weeks, and he was once again quick to reply, reaffirming our confidence in his professionalism. On the day of the job, Anthony arrived on time and efficiently installed our new shower faucet, recommended the best option for our budget, and set the drain in record time, coordinating seamlessly with another contractor working on the floor. Not only did he go above and beyond by addressing additional plumbing issues in our home, such as resealing a leaking toilet tank and replacing faucets, but he also made trips to Home Depot on our behalf without any extra charge. Anthony's dedication to meeting our needs, even outside regular working hours, sets him apart from other contractors we've worked with during our home remodeling project. His attention to detail, professionalism, and unwavering commitment to quality work make him a standout professional in his field. I am typically critical when it comes to service providers, but I cannot fault Anthony in any way. His integrity, work ethic, and genuine care for his clients make him a truly exceptional plumber. If you are in need of a reliable plumber, I highly recommend reaching out to Anthony Fankhauser at Rooter Er & Plumbing. Whether you are in South County or in areas like Marietta, you can trust that you will receive top-notch service and expertise. Thank you, Anthony, for your outstanding work and for exceeding our expectations."
tankless water heater uo to code
storm drain
same as above
gas line install
gas line install

+6

Response time11 hrs
Response rate94%
5 neighbors recently requested a quote
Avatar for Sweetwater Plumbing Industries, Inc.
Sweetwater Plumbing Industries, Inc.
4.0(
620
)
Sump Pump - Repair or Replace

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Very prompt response within 30 minutes of my call. The plumber was polite and professional. The price was quoted without hesitation. The installation was up to code, clean, and without delay. I recommend Sweetwater Plumbing to everyone!!"
Water Heater Installation
Plumbing Services
Water Heater
Plumbing Services
On Time Service

+36

Response time3 hrs
20 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Accurate Electric, Plumbing, Heating and Air
Accurate Electric, Plumbing, Heating and Air
4.5(
15
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"The owner Jeff reacted promptly, was extremely courteous and flexible. We decided on a time and materials formula for pricing. Pricing was fair but not cheap. Work was done timely and professionally. Will keep his number handy for future projects!"
Jeff Seale - Owner
Albert Aragon - Dispatch
Cheri Fortner - Operations Manager
Dan Hartman - Journeyman Plumber
Eric Bribiesca - Comfort Advisor

+24

58 neighbors recently requested a quote
Recommended by69%of homeowners
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Sump Pump Installation FAQs, answered by experts

Installing a battery backup for your sump pump is recommended, particularly if you live in an area with frequent power outages or severe rainstorms. A sump pump requires electricity to function, and a battery backup ensures it can continue to move water out of your home if the power goes out, providing crucial protection against flooding. Additionally, frequent power outages can create electrical surges that might damage the sump pump's motor. A battery backup system offers an additional layer of protection, ensuring your basement stays dry.

The life span of a water pump ranges from five to 15 years on average. Regular maintenance can extend its life. If you notice significant drops in performance, strange noises, or frequent malfunctions, consider a water pump or well pump replacement. Always get in touch with a professional if you're concerned about yCan I install a water pump myself?our pump's condition.

Several indicators suggest it's time for a sump pump replacement. A key factor is age; if the pump is over 10 years old, its lifespan is likely ending. Performance issues are also clear signs, such as the pump running constantly, cycling on and off frequently, making unusual noises or vibrations, or failing to function at all. A faulty or burnt-out motor is another definite sign a replacement is needed. Additionally, if you notice any signs of incorrect installation, the pump should be replaced. For a definitive diagnosis, a vetted plumber can assess the pump and confirm whether a replacement is necessary.

First, you can try unplugging the two sump pump cords, one for the motor and one for the float switch, then plugging them back in to reset the sump pump. You can also reset the sump pump by turning it off and back on at the breaker. Many sump pumps have a reset button, which you can press and hold for a few seconds to reset the device.

The difference between an ejector pump and a sump pump lies in their purpose and design—an ejector pump functions to remove liquid gray water and soft solid sewage waste from your home. If you have a laundry room or bathroom in your basement, an ejector pump for your sewage tank prevents sewage from backing up in your washing machine or bathroom’s drains.

A sump pump is designed to remove excess groundwater that may enter your home, either due to flooding or periods of heavy rain.

The Diamond Bar, CA homeowners’ guide to sump pump installation services

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