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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon267
    Verified foundation drain installation services reviews

Top-Rated Foundation drain installation pros in Los Osos - Updated Nov 2026

Avatar for 4G's Plumbing
4G's Plumbing
4.7(
36
)
Sump Pump or Interior Foundation Drains - Install

Serving Los Osos, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"The job was done well. The repairman was very nice. He completed the work in a timely manner and left the bathroom spotless. I have already recommended 4G’s Plumbing to the Manager of my Mobile home park and my next door neighbor. I will definitely use this company for any future plumbing needs"
Logo
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11 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Wighton's Electric, Plumbing, Heating, and Air
Wighton's Electric, Plumbing, Heating, and Air
4.4(
80
)
Sump Pump or Interior Foundation Drains - Install

Serving Los Osos, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1953

Free estimates

Emergency services offered

"The job was done quickly. The plumber installed a new garbage disposal, fixed the sink faucet issue another plumber said was unfixable, and repaired a toilet. He was polite, efficient and cleaned up after himself thoroughly."
Install brand new, high efficiency units with mount.
Installing brand new and high efficiency units
Install brand new, high efficiency units with mount.
Installing brand new and high efficiency units
Installing brand new and high efficiency units

+14

Response time1 day
Response rate100%
32 neighbors recently requested a quote
Avatar for Shofar Landscape Contracting
Shofar Landscape Contracting
5.0(
13
)
Concrete Foundation - Install

Serving Los Osos, CA and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"I have people asking all the time for the contractor's # They Poured a 90' long by 24" high wall, counter sunk 90 MPH posts (it is Lompoc) then installed a perfect overlapping fence! VERY, VERY Happy. Highly recommend!"
Response time1 day
Response rate87%
3 neighbors recently requested a quote
Avatar for PAYTON'S PLUMBING
PAYTON'S PLUMBING
5.0(
6
)
Sump Pump or Interior Foundation Drains - Install

Serving Los Osos, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Tyler of Payton’s Plumbing did a fantastic job. He did what he said he would do promptly and efficiently. We would highly recommend him. Yesterday we had a leaking water heater and today we have a new water heater. Couldn’t ask for better service at a reasonable price."
Response time11 hrs
Response rate90%
Recommended by20%of homeowners
On site plumbing & septic
4.5(
8
)
Sump Pump or Interior Foundation Drains - Install

Serving Los Osos, CA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

In Business Since 2024\nPAYTON'S PLUMBING We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n\nC-36 Plumbing\n#: 1125955\nEXP: 9/30/2026

2 neighbors recently requested a quote
Recommended by28%of homeowners
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Foundation Drain Installation FAQs, answered by experts

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.

You should take care of any sign of water in your basement, whether it’s dampness after heavy rain or puddles of water on the floor. Besides potentially causing a health hazard, the moisture can damage your home’s structure and foundation. Furthermore, mold can grow quickly and spread throughout the rest of your home. With mold remediation costs ranging between $1,200 and $3,400, it’s best to avoid mold issues by fixing the leak.

A sump pump battery backup can typically run for 6 to 24 hours. The factors that affect its runtime include the battery capacity and pump usage. 

When purchasing your backup system, take these factors into consideration to determine which system is best for your home. If you live in an area with frequent and long-lasting power outages, consider a longer-lasting backup battery.

A sump pump is one of the most common ways to get excess moisture out of your home, but it’s not the only way. If your home doesn't have a sump pump, other options to get excess water out of the basement include trash pumps, submersible pumps, service pumps, and hand-crank pumps. However, it’s worth calling a pro in to assess your situation and potentially install a sump pump for you.

Your sump pump will discharge water through a discharge line or pipe. The discharge line should be placed at least 10–20 feet from the foundation to avoid any issues.

The Los Osos, 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.