Sewer Line Repair & Replacement
Sewer Line Services in Marin, Sonoma & Napa County
Your home’s sewer line is one of the most important parts of your plumbing system, responsible for safely transporting wastewater away from your home. When problems occur, they can disrupt your daily life and lead to costly damage. That’s why it’s essential to work with a reliable plumbing company that understands how to handle sewer systems with expertise and care.
At Ongaro & Sons, we offer comprehensive sewer services throughout Marin, Sonoma, and Napa counties, as well as neighboring the North Bay communities. Whether you’re dealing with a damaged line, planning to sell your home, or need a routine inspection, our certified plumbing professionals are here to help.
Sewer Line Inspections for Home Sales
If you’re buying or selling a home, a sewer line inspection is a smart investment. Sewer problems aren’t always visible during a standard home inspection, but if left undetected, they can lead to major repair bills.
Our plumbers use advanced video camera equipment to inspect your home’s sewer line from the inside. We look for issues such as cracks, root intrusions, corrosion, or sagging pipes (known as bellies). With a detailed report and video footage, we give you peace of mind before closing day.
Why schedule a sewer inspection before a home sale?
- Avoid unexpected repairs after purchase
- Provide buyers with transparent documentation
- Help sellers price their homes appropriately
Sewer Line Maintenance
Routine sewer maintenance helps prevent major issues down the line. At Ongaro & Sons, we offer preventative cleaning and inspection services to keep your pipes clear and functional.
Over time, tree roots, grease buildup, or debris can clog or damage sewer lines. With regular maintenance, we can spot minor problems before they become emergencies, saving you money and stress.
Benefits of sewer line maintenance:
- Reduce the risk of backups and blockages
- Extend the lifespan of your sewer system
- Improve system efficiency and reliability
Sewer Line Repair
Not all sewer problems require full replacement. Our licensed plumbers are equipped to perform fast, cost-effective sewer line repairs for issues such as joint leaks, small cracks, or partial clogs.
We use precision diagnostics to pinpoint the exact location and cause of the problem. Then, we apply the right repair strategy, whether it’s patching, relining, or replacing a damaged section.
Our sewer repair process includes:
- Video camera diagnostics
- Minimal digging with trenchless technology (when applicable)
- High-quality materials and expert craftsmanship
Sewer Line Replacement
Some sewer lines are beyond repair due to age, corrosion, or extensive damage. In those cases, sewer line replacement is the safest and most effective solution.
We offer both traditional and trenchless replacement methods, depending on the condition of your system and the layout of your property. Our trenchless options minimize disruption to your yard, driveway, and landscaping while providing a durable, long-term fix.
Signs you may need sewer line replacement:
- Frequent clogs or slow drains
- Persistent sewer odors around your home
- Wet, sunken patches in your yard
- Cracked or collapsed pipe sections
Schedule Your Sewer Line Service
Whether you’re planning a home sale, tackling a sewer line issue, or just looking to keep your plumbing in top shape, Ongaro & Sons is here to help. We proudly serve Sonoma, Marin, and Napa counties, including Santa Rosa, Napa, San Rafael, and surrounding cities. Call us now at 415-741-2820 or book your appointment online for fast, reliable sewer service you can trust.
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 Marin, Sonoma and Napa County. 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.
Licensed, Insured, Background-Checked
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, with no surprises.
Since 1932
Why Ongaro & Sons for Sewer Line Service
Sewer lateral work has a licence requirement most homeowners never think to check.
Schedule Service →C-42 sanitation system, which the work actually requires
Santa Rosa requires a Class A or C-42 contractor for sewer lateral plumbing. Ongaro & Sons holds C-42, so the job is inside our licence rather than subcontracted.
Camera inspection first, every time
Roots, a bellied section, a failed joint and a collapse all present as a slow drain. Only a camera tells you which one you have and how far along the run it sits.
Trenchless options assessed properly
Pipe bursting and lining avoid opening the full length. Conditions decide whether they apply, and we will say when they do not.
Locating before digging
Depth and route are established before excavation, which is what keeps the work off your driveway where possible.
Permits and the record that follows the house
Lateral work is permitted and inspected. Ongaro & Sons has worked in these counties since 1932.
Discount
Membership
Ongaro Maintenance Plans
Annual maintenance on your home systems provides safeguards and comfort to you and your family. Members get priority scheduling, discounts, and proactive checkups that catch problems early.
Member Discounts
5% off every repair and replacement, all year long.
Peace of Mind
Proactive checkups catch issues before they become big problems.
Courtesy Reminders
We call you to schedule: never miss a seasonal service.
Value That Lasts
With Ongaro & Sons, you’re investing in quality, integrity, and service that stands the test of time. Explore our current promotions and see the difference real value makes for your HVAC, plumbing, and electrical needs.
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Read MoreFrequently Asked Questions
Can sewer odors enter my home?
Yes, dry P-traps, cracked vent lines, or broken seals can allow gases to escape indoors.
Do I need permits for sewer line installation?
Yes, permits and inspections are required to ensure code compliance and public safety.
How often should I inspect my sewer line?
Have your line inspected with a camera every 1–2 years, especially if your home is older or surrounded by trees.
What causes sewer backups?
Common causes include tree roots, grease buildup, damaged pipes, and flushing inappropriate items.
What materials are used in modern sewer line replacement?
Durable options like PVC or HDPE are commonly used for their longevity and resistance to corrosion or root intrusion.