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Top-Rated Sump pump installation pros in Sunnyvale - Updated Nov 2026

Avatar for Quality Pump Service
Quality Pump Service
4.5(
50
)
Sump Pump - Repair or Replace

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Small jobs welcome

"Quick resolution to an emergent problem due to impending bad weather and continued flooding. Sump pump replaced and connection to drain was done very efficiently."
Response time5 hrs
10 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Sump Pump or Interior Foundation Drains - Install

Serving Sunnyvale, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"My wife and I bought a house a couple years ago, and became owners of a radiant heating systems installed more than 20 years ago. Tony and Damian did a great job of understanding how my radiant heating system works, what repairs were needed/what was failing, and where upgrades were needed. They replaced the pump, both expansion tanks, and the neutralizer. Additionally, they noticed the hot water tank was installed incorrectly, and the hot and cold water connections were flipped. It's amazing the system worked, and it's nice to have a system that's correctly installed (even if it's 20 years later!). Additionally, they secured the expansion tanks to the wall (now required by code), replaced the deteriorating copper pipes connected to the neutralizer with plastic (I'm sure this is code now as well), and re-routed the overflow pipes to the outside (rather than the floor!). You can't go wrong with these guys, well done, they're true craftsmen to the trade."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
44 neighbors recently requested a quote
Avatar for Escamilla Plumbing and Rooter Inc.
Escamilla Plumbing and Rooter Inc.
5.0(
51
)
Sump Pump or Interior Foundation Drains - Install

Serving Sunnyvale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Emergency services offered

Warranties offered

"Gustavo definitely knows his trade. He not only made the installation functional, but it really looks great. Gustavo handled the electrical portion, as well as installing the water heater and recirculating pump. The price was definitely competitive and I would certainly use him again. Nice job!"
Plumbing Project
Electric Heat Pump Water Heater
Shower Valve
Shower Area Remodel
New Bidet

+167

Response time1 day
Recommended by82%of homeowners
Avatar for Jess Plumbing
Jess Plumbing
4.9(
50
)
Sump Pump or Interior Foundation Drains - Install

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"The install went smoothly. The work was thorough and they took time to review what they did and explain how to properly flush the tank to extend it’s working life. I would certainly recommend and use them again for future work."
Plumbing Project
Plumbing Project
Plumbing Project /water main
Old gate valve/ doesn’t shut off water
Installed new Zoeller sewer tank lid

+178

Response time1 day
Response rate100%
Recommended by93%of homeowners
Avatar for The Tankless Guys Plumbing Corp.
The Tankless Guys Plumbing Corp.
5.0(
13
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"I met Gert when we hired him to replace our Tankless water heater. I was so impressed with is knowledge and concern to make sure the installation was neat and clean. The piping is literally a work of art. We met with Gert and Sergio to discuss the next phase. They removed all the galvanized pipe and installed 3/4" copper with a true hot water recirculating line for Tankless recirculating pump. Before they started work, they came in and placed protective covers over the hardwood floors. Sergio and his team replaced all the cast iron drains with ABS. They even opened walls where needed to get to the old galvanized drains to the sinks. They pulled up toilets and replaced the old flanges with new ones. All that's left is the sewer line from the house to the street. We will be calling Gert and Sergio when reach that point. Gert, Sergio and the whole crew have something you do not see that often anymore. That's integrity and concern for their customer. Also very conscientious of keeping our home clean."
Give us a call today at 408-580-0031
Give us a call
give us a call
give us a call
give us a call

+5

Response time7 hrs
Response rate91%
Recommended by100%of homeowners
Allstar Plumbing Corporation
3.3(
253
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Our service for sump pump repair and improvement, led by Javier Estudillo, was prompt and, we believe, excellent (technically, we need to experience a rainy season to be sure). Javier showed before and after pictures of the work done by him and his crew and the work looks very good. Their service is not cheap but was prompt and very good. We highly recommend Allstar Plumbing Corporation for your sump pump and other plumbing needs."
 Gas Piping
 Kitchen Stoppage
 Pipe Leaks And Repairs
 Friendly Customer Reps
 Plumbing Services

+6

Response time1 day
Recommended by85%of homeowners
Avatar for Giant Plumbing, Inc.
Giant Plumbing, Inc.
4.3(
29
)
Sump Pump - Repair or Replace

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Responded very fast, and took care of a pressing issue. Great integrity and craftsmanship. Don is a nice guy eager to please his clients. Look no more, youâ ve found the plumber you need."
Giant Plumbing, Inc.
Giant Plumbing, Inc.
Giant Plumbing, Inc.
Giant Plumbing, Inc.
Giant Plumbing, Inc.

+4

Response time7 hrs
19 neighbors recently requested a quote
Recommended by75%of homeowners
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Sump Pump Installation FAQs, answered by experts

Yes, many providers offer warranties for new pumps and labor. Confirm terms before scheduling.

If your sump pump isn’t engaging, it might be clogged with dirt and debris. Check to see if the fitting lid is loose and has been letting debris in. Next, check the float and make sure it’s not obstructed by rust or gunk, which results from insufficient maintenance. Tangled wires or damaged switching systems can also stop your sump pump from engaging.

When a backflow valve fails, wastewater will flow back into your system, contaminating your drinking water. You’ll immediately notice backflow valve failure from a rotten smell and brown water coming from faucets. Get in contact with a septic pro or a plumber immediately if you suspect this has happened to you.

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.

A sewage ejector pump is necessary if you have any plumbing fixtures, such as a bathroom, laundry room, or sink, located below the level of your home's main sewer line. Standard plumbing relies on gravity to move wastewater and solid waste to the municipal sewer or septic tank. However, for fixtures located below grade (e.g., in a basement), gravity is not sufficient.

The purpose of a sewage ejector pump is to actively pump this wastewater and solid waste upward into the main sewer line. Without an ejector pump in this situation, wastewater would have no way to exit and would eventually back up, causing a sewage overflow or flooding in your basement. If all of your home's plumbing is on the main floor or higher, gravity can handle the drainage, and an ejector pump is not needed.

The Sunnyvale, 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.