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Best foundation drain installation pros near Ontario, CA

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Top-Rated Foundation drain installation pros in Ontario - Updated Nov 2026

Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Foundation Drainage - Install or Replace

Serving Ontario, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Alpha Structural are class acts 100%. Dick came to my house, gave us an honest estimate under what we had expected and got us on the books promptly to begin work. The foreman, Jose, was attentive and polite throughout the work. The stars of the show, Lawrence and Antonio, blew us away with their work. They gave me regular updates and got the job done, start to finish, with utmost professionalism. Little things, like pulling in my garbage cans after collection, just really made their work ethic and politeness stand out. With their stellar reputation and amazing performance, I trust this company with any foundation work I'll hopefully not need in the future! I just wish they provided more services so that I can work with them more."
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%
12 neighbors recently requested a quote
Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Sump Pump or Interior Foundation Drains - Install

Serving Ontario, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Ryan was perfectly on-time and was a plumbing scholar and a gentleman. We had a simple drain replacement under a new sink. Going to Western saved me at least another day of trying to figure out proper parts and doing the install myself, and it also saved my wife's ears from hearing my salty language."
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 Just Stamping Concrete
Just Stamping Concrete
5.0(
28
)
Concrete Foundation - Install

Serving Ontario, CA and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"I hired this company to design my backyard landscape and they did a fantastic job. The designer was creative and came up with a beautiful plan that incorporated all of my ideas. The installation process was seamless and the team was professional and efficient. I now have a backyard that I can be proud of and enjoy all year round. I highly recommend this company for anyone looking to enhance their outdoor space."
Concrete
Response time2 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Robert A. Garcia Concrete
Robert A. Garcia Concrete
4.8(
64
)
Concrete Foundation - Install

Serving Ontario, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Robert and his crew were really wonderful and did a great job with our patio! Robert was always on time and did the project in the specified amount of time and for a reasonable price. This was a big job where the original concrete patio had to be removed and a new flagstone patio installed in its place. The new patio really pulls the whole backyard together and is such a great addition! Robert was also very good about making adjustments at our request without hesitation. We will be hiring Robert in the near future for additional home improvements!"
Response time9 hrs
Response rate88%
Recommended by85%of homeowners
Avatar for Ace’s Plumbing Services
Ace’s Plumbing Services
5.0(
20
)
Sump Pump or Interior Foundation Drains - Install

Serving Ontario, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Athen did an amazing job installing my utility sink. The job turned out to be bigger than what he quoted, but he kept the same price he originally quoted me. He went above and beyond to make sure the job was custom and solid . He was professional, courteous, and friendly. Highly recommend !"
Water Heater Installation
Valve/Regulator
Tankless Heater
Copper Spot Repair
Automatic Shutoff

+2

Avatar for PRO FLOW PLUMBING AND ROOTER
PRO FLOW PLUMBING AND ROOTER
5.0(
11
)
Sump Pump or Interior Foundation Drains - Install

Serving Ontario, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

"My toilet wasn't draining properly. Richard A from Pro Flow came out and found the problem within 20 min. My main sewage line had groots from a near by tree. He removed the roots and added an apoxy to seal off the Crack."
Drain repair
Drain repair
Drain repair
Drain repair
Drain repair

+6

8 neighbors recently requested a quote
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Showing 1-10 of 460
Foundation Drain Installation FAQs, answered by experts

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

Most sump pumps come with power cords that can be plugged into an outlet, but there are options that can be hardwired into a home’s electrical system. Either way, it’s smart to have a backup power supply in case the electricity goes out during a storm. That way, the sump pump can keep running and removing water from the sump pit.

Standing water under your house can threaten its structural integrity. If water pools in your crawl space, it can damage the foundation and the structure above ground, causing wood rot, mold, and other problems. If you have a concrete foundation, standing water under your house can also make your foundation slabs crack.

The type of stormwater drainage system you need depends on your area’s storm severity and frequency. Your property’s location should also be considered, including the surrounding soil type, nearest roads, existing drainage systems, and slopes and hills. Your property’s structure, such as decks, walkways, crawl spaces, and foundation, also affects what drainage system will work the best.

French drains, sump pumps, and exterior waterproofing systems are common options. Choose one that best suits your property’s needs.

The Ontario, CA homeowners’ guide to foundation drain installation services

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