Your sewer line moves the wastewater from inside your home to an outdoor sewer main. The last thing you want is for your sewer line to fail, possibly leading to costly damage to your lawn and home.
Whether you need a sewer line repair or even a replacement, Ongaro & Sons can help. Our licensed plumbers specialize in professional sewer line installation services in Marin, Sonoma, and Napa counties, as well as all surrounding Northern California communities.
Protect your property from a damaged sewer line. Give Ongaro & Sons a call today at 415-741-2820 for a plumbing consultation.
Sewer Line Installation Services in Northern California
An incorrectly installed sewer line can lead to serious issues like frequent drain clogs and sewage backups.
As Northern California’s premier plumbing company, we know how critical proper sewer line installation—and ongoing service—are to the long-term health of your plumbing system.
Whether you’re building a new home or upgrading an aging sewer system, Ongaro & Sons is the team to trust. Serving homes and businesses since 1932, we bring decades of expertise and a reputation for getting the job done right the first time.
When Do You Need a New Sewer Line?
There are several situations where a new sewer line installation may be necessary:
If you're building a new home or an addition that requires plumbing, a sewer line must be installed to connect the property to the municipal sewer system. Professional installation ensures proper slope, flow, and compliance with local building codes—setting the foundation for a reliable plumbing system from day one.
Your Comfort, Our Priority
Ongaro & Sons is your trusted heating, cooling, plumbing, electrical, and solar expert—specializing in reliable maintenance and repair services that keep your home running efficiently year-round.
Our certified technicians deliver unmatched expertise with fast, friendly service across Northern California. From HVAC tune-ups to plumbing repairs and electrical upgrades or solar solutions, we focus on energy-efficient performance and long-term comfort. Count on us to maintain the systems that power your home and keep your environment just the way you like it.
PHCC- and NATE-Certified Experts
Our technicians are licensed, experienced, and trained to service all makes and models.
Locally Owned and Operated
Serving the Napa, Marin, and Sonoma communities with personalized, hometown service.
Reliable Repairs
We respond quickly and get the job done right the first time—no surprises.
Our Installation Process
At Ongaro & Sons, we begin every project with a detailed site evaluation and sewer line inspection. We’ll walk you through every step of the process—from selecting the right materials to securing permits and ensuring code compliance. Our team uses proven installation methods to minimize disruption to your property while ensuring long-lasting results.
Depending on your property and needs, we may recommend:
Traditional Excavation for full line replacement
Trenchless Installation Methods, such as pipe bursting or pipe lining, for a faster and less invasive solution
To make your project even more manageable, we offer flexible financing options (on approved credit), helping you complete the work you need without straining your budget.
How to Maintain Your Drain and Sewer Line System
Maintenance is key to ensuring your drain and sewer lines work efficiently for many years.
At Ongaro & Sons, we offer hydro jetting and drain cleaning services to remove a buildup of residue and grime, clear blockages, and support ideal sewer line efficiency and performance.
Be proactive—don’t wait for a problem to arise with your drain or sewer line. Schedule routine plumbing and sewer line maintenance services to reduce the risk of major problems like clogs and sewage backup.
If you suspect an issue with your plumbing or sewer line, be sure to have our PHCC-certified plumbers perform a sewer line inspection so we can diagnose and repair problems before they have an opportunity to progress.
Call Ongaro & Sons for Top-Quality Sewer Line Installation
If you need a new sewer line, don’t trust the job to just anyone. Whether you’re building a new home, upgrading an aging system, or replacing a damaged line, our licensed plumbers deliver dependable solutions you can trust. Choose a local team with over 90 years of experience delivering exceptional plumbing services.
Local Knowledge: We understand the plumbing challenges specific to Northern California—like aging infrastructure, soil conditions, and municipal code requirements.
Certified and Experienced: Our licensed and PHCC-certified plumbers have the skill and training to handle complex installations with precision.
Upfront, Honest Pricing: No hidden fees. No surprises.
Clean, Respectful Workmanship: We treat your home as if it were our own.
We proudly serve homeowners across Marin, Sonoma, and Napa counties, including Corte Madera, Kenwood, Two Rock, Cloverdale, and the surrounding communities of Northern California. Call Ongaro & Sons today at 415-741-2820 or [schedule online] for a consultation. We’ll help you get your sewer system up and running the right way.
5%
Member Discount
Ongaro Maintenance Plans
Annual maintenance on your home systems provides safeguards and comfort to you and your family. Neglecting your routine checkups can potentially put everyone at risk.
With these annual visits, our experienced technicians use the latest technology to help find unsafe problems before they can become bigger problems.
Maintenance Plan Benefits
Member benefit of 5% discount on repairs and replacements.
Proactive maintenance identifies and addresses issues before they become big problems.
Courtesy reminder calls for scheduled services and appointments.
Special Offers
Enjoy our seasonal promotions and save on your next service.
Limited-time offers—don’t miss out!
Free MacBook Air
With HVAC Upgrade*
$700 Off
Hydro Jet Sewer Cleaning*
FREE
Camera Inspection*
$69
HVAC System Diagnostic*
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Frequently Asked Questions
Yes—permits and inspections are required to ensure code compliance and public safety.