No one enjoys dealing with a sewer line problem on their property. Broken or clogged sewer pipes can create messy, wet, and unsanitary conditions. If your sewer line cracks or leaks, immediate attention is needed.
Ongaro & Sons specializes in professional sewer repair services to keep your plumbing system safe, sanitary, and running efficiently. Whether you’re dealing with recurring clogs, unpleasant odors, or soggy patches in your yard, our experienced technicians are ready to diagnose the issue and provide a long-lasting solution.
We use advanced diagnostic tools and trenchless repair methods whenever possible to minimize damage to your landscaping. Our team works quickly and carefully, treating your home as if it were our own.
Expert Sewer Repair Services in Northern California
We look forward to diagnosing your sewer problem and offering you the best repair, cleaning, and maintenance solutions. Ongaro & Sons provides expert service backed by decades of trusted experience, from minor repairs to full pipe restorations.
We serve homeowners throughout Marin, Sonoma, and Napa counties, along with surrounding communities of Northern California. If you suspect a problem with your sewer system, don’t wait—early repairs can prevent costly damage down the road.
Contact us for timely service to resolve your sewer issue and restore your system to top condition.
Signs Your Sewer Line Needs Repair
You can't see your sewer line fail because it runs under your property, out of view. However, plumbing fixtures and drains in your home can offer some clues about sewer damage.
For example, waste flowing from your floor drain, shower, or toilet is a warning sign that your sewer line may need repair. It is a good idea to have it inspected at least once a year.
Other signs your sewer line needs repair:
If more than one drain in your home—such as sinks, tubs, or showers—is draining slowly, it’s often a sign of a deeper issue in your main sewer line. A single slow drain might just be a localized clog, but widespread drainage problems typically point to a larger blockage or damage.
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.
Ongaro Sewer Repair Process
At Ongaro & Sons, we begin every sewer repair with a thorough, noninvasive inspection. Using a high-definition sewer camera, we feed a flexible scope through your sewer line to pinpoint the exact location and cause of the problem—whether it’s a blockage, crack, corrosion, or invasive tree roots. This step allows us to assess the extent of the damage and determine the most effective repair strategy.
Once the issue is identified, our experienced technicians will explain your options. Whenever possible, we recommend trenchless repair methods to minimize disruption to your property. Techniques like pipe lining or pipe bursting allow us to repair or replace damaged pipes without extensive excavation.
If a traditional repair is necessary, we take extra care to protect your landscaping and restore your property as neatly as possible. Throughout the process, we maintain open communication, keep the work area clean, and ensure all repairs are code-compliant and built to last.
With decades of experience and a commitment to quality craftsmanship, Ongaro & Sons ensures your sewer line is repaired efficiently, safely, and with long-term performance in mind.
Sewer Repair Options
We can diagnose the problem accurately and provide the best solution after looking at the inside of your sewer line. We offer traditional and trenchless methods for repair and replacement.
Traditional Sewer Repair Method
We excavate in your front yard to access the damaged sewer line and repipe areas that need it. This method may involve digging in your driveway or uprooting some landscaping to uncover it.
We know how stressful and inconvenient sewer problems can be. Our qualified pros complete repairs efficiently and safely. We make every effort to finish the job as quickly as possible while minimizing disturbances.
Trenchless Sewer Repair Method
The trenchless repair process is less invasive than the traditional method. We dig two holes at each end of the damaged sewer line rather than excavate your property. Repair options include pipe lining or pipe bursting techniques.
Pipe lining involves placing a lining and resin coating inside the damaged sewer line. The materials adhere to the inside of the pipe and harden within a few hours.
The trenchless pipe bursting method uses a tool that destroys the damaged sewer line as it simultaneously places a new pipe.
Prevent Sewer Repairs With Maintenance
Ongaro & Sons recommends an annual cleaning to keep waste from building up in your sewer line. We offer hydro jetting, which sends a powerful blast of water through the sewer pipe to flush sludge, grease, and other materials.
Hydro jetting is ideal for a structurally sound sewer line. We can suggest an alternative cleaning method for an older, weakened pipe that cannot withstand high-pressure water jetting.
You can help keep your sewer pipe free of clogs. Avoid putting nonflushable products in your toilet, and refrain from pouring grease down sink drains.
Ongaro & Sons offers all our customers a convenient Ongaro Maintenance Plan to handle all your maintenance efficiently and professionally. Sign up today and enjoy some peace of mind when it comes to the plumbing equipment inside your home or business.
Call the Experts for Sewer Repair
Don’t let a minor sewer issue turn into a major headache. At Ongaro & Sons, we specialize in identifying and repairing sewer line problems quickly and effectively—saving you time, money, and stress. Whether it’s a clog, root intrusion, or damaged pipe, our team uses advanced tools and proven techniques to restore your plumbing system with minimal disruption.
We’re proud to serve homeowners across Northern California with prompt, professional, and honest service. From Corte Madera, Kenwood, to Two Rock, Cloverdale, and Glen Allen, our licensed technicians are ready to assess your sewer line, explain your options, and deliver long-lasting repairs you can count on.
A plumbing problem won’t fix itself, and it only gets worse with time. Call Ongaro & Sons today at 415-741-2820 or request services online to schedule your sewer repair. We’re here to help keep your home safe, clean, and functioning smoothly.
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.