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Find Septic system installers and replacers in Modesto

Avatar for Mainline Plumbing Inc.
Mainline Plumbing Inc.
4.5(
210
)

Serving Modesto, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

"Miguel did a great job - he was experienced, knowledgeable, trouble-shooted accurately and knew what had to be done and did it. Will have them replace my water heater when that time comes. Thanks Miguel!!!"
Plumbing Repairs
Leak Detection
Toilet Services
Water Treatment
Water Line Services

+4

Response time8 hrs
4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mainline Plumbing, Inc.
Mainline Plumbing, Inc.
4.5(
182
)

Serving Modesto, CA and surrounding areas

In business since 2001

Emergency services offered

Warranties offered

"Trey called ahead and arrived at the time he said he would. He was personable, friendly, and professional. He cleaned and flushed my water heater, as I requested. He explained what he would do, and explained what he was doing as he did it. I was very pleased with his work. I would use Mainline Plumbing again without hesitation."
Shower / Tub Remodel
Shower/ Tub Remodel
Shower / Tub Remodel
Shower / Tub Remodel
Bath Tub

+17

Response time4 hrs
Recommended by93%of homeowners
Avatar for Herman Landscaping and Sprinkler Services
Herman Landscaping and Sprinkler Services
4.3(
24
)

Serving Modesto, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"German came shortly after I had several large trees stump grinned, during our last major storms. His prices were more reasonable in comparison with other landscapers and he did an amazing job. He used a bobcat to remove the wood chips, debris, installed a new irrigation system, and installed a new raised concrete barrier. This was a lot of work and I’m pleased with German’s work. He also fixed a sprinkler section that I trouble with prior to the storm. He’s very knowledgeable and reasonable."
Landscaping installation, bark,rocks, grass and irrigation system
Trex Deck
Grass installation
Landscaping design and project
Synthetic grass

+89

Response time1 day
Response rate100%
Recommended by95%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Modesto, CA and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
Additional Photos
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+2

Recommended by65%of homeowners
Iron Valley Plumbing
5.0(
3
)

Serving Modesto, CA and surrounding areas

In business since 2017

Free estimates

At Iron Valley Plumbing, we are dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. With over 15 years of industry experience.We specialize in commercial services. We take pride in the attention to detail put into each of the projects we're involved with. We are known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

Response time30 mins
Recommended by100%of homeowners
Avatar for Platinum Dirt Worx, LLC
Platinum Dirt Worx, LLC
5.0(
2
)

Serving Modesto, CA and surrounding areas

In business since 2021

Free estimates

Credit card accepted

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!\n

Response time12 hrs
Recommended by100%of homeowners
Avatar for Soulier Sanitation
Soulier Sanitation
New to Angi

Serving Modesto, CA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

With years of experience in the excavation industry, we are the experts you need to take care of your home or business. We handle all of your septic and excavation needs with great care. We will treat your home as we would treat our own. Give Soulier Sanitation a call today, we look forward to working with you!

Response time2 hrs
Response rate95%
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FAQs for septic system installation and replacement projects in Modesto, CA

The smallest standard septic system uses a 500-gallon tank, which costs between $875 and $1,150 installed. This size works well for single-occupant dwellings with minimal wastewater production. However, many local regulations specify minimum tank sizes, so check with your building department before committing to this compact option. Some jurisdictions require at least 750 gallons regardless of home size to ensure adequate waste processing capacity.

The installation timeline varies based on site conditions, permit processing, and contractor schedules. The process includes obtaining permits, conducting soil tests, excavation, tank placement, leach field construction, and final connections. Weather conditions, soil challenges, and inspection scheduling can all affect the overall timeline. It's wise to begin planning well in advance of when you need the system operational.

The most economical approach is to install a conventional anaerobic system with a plastic tank. To minimize costs while maintaining legality, obtain multiple quotes from licensed installers, consider scheduling during their slower seasons, and handle basic site preparation yourself. Never skip permits or required testing to save money—illegal installations can result in significant fines and mandatory removal, ultimately costing far more than doing it right initially.

Regular pumping helps prevent system failures and extends operational life. Most small systems require pumping every three to five years, though frequency depends on household size and usage patterns. Pumping services cost between $290 and $530, making this maintenance expense relatively minor compared to potential repair costs ranging from $500 to $2,600 for neglected systems. Establishing a regular maintenance schedule based on your installer's recommendations helps avoid costly emergency services.

The Modesto, CA homeowners’ guide to septic system installations and replacements

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