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.
Sewer Services From Ongaro & Sons Since 1932
At Ongaro & Sons, we offer comprehensive sewer services throughout Marin, Sonoma, and Napa counties, as well as neighboring Northern California 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 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
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.
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 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
Why Choose Ongaro & Sons?
Since 1932, homeowners in Marin, Sonoma, and Napa counties have trusted Ongaro & Sons for honest, high-quality plumbing work. We bring decades of experience, friendly customer service, and the latest tools to every job.
Our technicians are NATE-certified HVAC experts and PHCC-certified plumbing technicians. We ensure they undergo continuous education and training to stay abreast of the latest industry standards and technologies.
Schedule Your Sewer Service Today
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 cities across Northern California like Santa Rosa, Napa, and San Rafael, offering quick response times and no-surprise pricing. Our family-owned business is committed to delivering long-term sewer solutions that protect your home and your peace of mind.
Call us today at 415-741-2820 or request services online to schedule a consultation. Let us handle the dirty work—so you can enjoy a cleaner, safer home.
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—dry P-traps, cracked vent lines, or broken seals can allow gases to escape indoors.