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TRUSTED BY GILROY, CA HOMEOWNERS

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    Average homeowner rating
  • Verified reviews icon19
    Verified septic tank services reviews

Top-Rated Septic tank pros in Gilroy - Updated Nov 2026

Avatar for Central Coast Engineering & Development INC
Central Coast Engineering & Development INC
5.0(
14
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Gilroy, CA and surrounding areas

Approved

In business since 2023

Free estimates

Customers say: Quality work

"I would give Austyn 100 stars if I could. He made the project go smoothly. His personality, level headedness, his problem solving skills, knowledge of his craft and the ability to work with others so appreciated. While excavating for the septic Leitchfield, I had him do other work on the property, moving earth and building a retaining wall. When he discovered a huge cavern where earth had eroded to the point of danger, he immediately ordered everything and had it fixed in a few days. He was here on time, and he stayed on the job until it was finished. Here ever day. That isn't always the case, especially when unexpected things (like a cavern) show up and the job takes longer than planned. Everything turned out perfectly, we passed the city inspections on the first try. You can't go wrong with Austyn, he is someone you can trust."
Response time1 day
2 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for TRIO Heating, Air & Plumbing
TRIO Heating, Air & Plumbing
5.0(
5
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Gilroy, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"My experience with Trio Heating and Air for my air conditioning installation was exceptional. From start to finish, they demonstrated professionalism and efficiency. The technicians arrived promptly and were well-prepared, guiding me through the process and recommending the perfect system for my home. Throughout the installation, they worked diligently, respecting my space and ensuring everything was installed correctly. Their clear communication and transparent pricing made the experience stress-free. Now, my home is consistently cool and comfortable, and I couldn't be happier with the results."
Heating & Air Conditioning Installations
Heating & AC Install
Heating & AC Install
Heating & AC Install
Heating & AC Install

+101

Response time4 hrs
Response rate93%
10 neighbors recently requested a quote
Superior Sanitation, LLC
New to Angi
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Gilroy, CA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

Superior Sanitation, LLC is your industry expert in Gilroy and the surrounding areas. We pride ourselves on our extreme professionalism, integrity, attention to detail. We only make promises that we know we will deliver on. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

Response time1 day
Avatar for Hastings Construction, Inc.
Hastings Construction, Inc.
5.0(
10
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Gilroy, CA and surrounding areas

In business since 1991

Free estimates

Offers commercial services

"Total industrial auto building renovation including concrete, electrical, HVAC, lighting, roof, etc. They did an excellent job. Always on time and on budget. They handled all of the plans, engineering and permitting. Great communication and the staff, which includes in-house design, is incredible. I am already using them on another job and would absolutely recommend them again."
Roth Septic Tank install
Septic System Installs
Septic System Installs
Septic System Installs
Septic System Installs

+17

Response time2 days
Recommended by90%of homeowners
Showing 1-10 of 30
Septic Tanks FAQs, answered by experts

Call a dedicated well and pump professional to install your new well pump. In some cases, plumbers may have the experience needed for the installation, but it’s always better to go with a specialized pro. Well and pump contractors have hundreds of hours of experience with all different types of wells and pumps. 

The bacteria already present in your septic system should be enough to break down solids in a properly maintained septic tank. However, if you’re in a DIY mood, you can try adding (well-mashed) rotten tomatoes to help the good bacteria fulfill their duty. Just make sure you give them a couple hours to work after flushing them down.

Digging a well can cost between $20 and $25,000, depending on your needs. If you’re looking to dig a well yourself, all you need is a shovel. If you’re looking to have a well drilled by a professional, you can expect to pay around $15 to $30 per foot. The total cost of drilling a well will average to $5,500.

For homes with a septic tank, harsh chemicals like those found in drain cleaner or bleach aren’t recommended. Some chemical drain cleaners can disrupt the balance of bacteria in the septic tank or damage your pipes. For homes with a septic tank, you can choose drain cleaners specifically formulated for use with septic tanks or go with a drain snake. When in doubt, make sure you know who to call for a clogged drain. 

You may notice a septic smell in your yard after it rains if groundwater is entering your septic tank and causing it to overflow. If you experience septic odors after rainfall, contact a licensed plumber. They can construct a drain to redirect rainwater away from your septic tank. 

The Gilroy, CA homeowners’ guide to septic tank services

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