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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

"This group is top notch, friendly and excellent. There was an issue with scheduling (for some reason they didn't get the deal I bought on the website) my wife had me call the day before the scheduled inspection (that I set up on the website) and alpha structural got back to me asap. Even though they were just notified that morning they got Dick out later that afternoon when we needed him. I was very impressed how they were able to make it right in such a short amount of time. Buying a home with potential issues (especially the foundation) is tough enough but for them making it work was a life saver. Dick our structural engineer was very knowledgeable, gave all the facts and in the end gave us piece of mind. I would definitely use them again!!"
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%
10 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%
5 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 did a great job installing a concrete walk in my side yard. They had some challenges working around our existing irrigation valves and pipes, but they took the extra time to do it right. After installing the concrete Robert found an area which was not draining fully and he put in extra time and effort to fix the problem area. Robert communicated with us during the project and was very professional. I would recommend Robert Garcia Concrete!"
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

"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 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

"i would like to thank pro flow plumbing to come and clear my kitchen sink drain. after having multiple plumbers charge me almost yearly and still have slow drainage, i called richard and he took his time to clean the drain and now back to fast working drain. very satisfied for the work received!"
Drain repair
Drain repair
Drain repair
Drain repair
Drain repair

+6

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

The best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.

If you have more significant water problems, the solution will need to be more robust:

  • For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.

  • For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.

Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.

Grinder pumps alone cost $300 on average. The average cost to install a new grinder pump is between $2,000 and $4,000, including the pump and labor. This price can also change based on the exact type of grinder pump you choose, labor costs in your area, and the power system your home currently has.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

No, you can’t drain your sump pump into your home’s sewer system. In fact, it’s against the law in many places because dumping extra water into a municipal water system can disrupt or overwhelm the treatment process. And for similar reasons, you shouldn’t discharge a sump pump into your septic system, either.

There are a few possible sump pump drainage locations, including a neighborhood storm drain, into a creek or pond, or underground. Don’t let your sump pump water go into your sewer or septic system. Ideally, your drainage spot should be on a downhill slope that’s at least 10 to 20 feet away from your home’s foundation. Before choosing a location, check your local codes and regulations.

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.