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24/7 Emergency Service Available 909-346-2737
Quality You Can Rely On — Every Time Expert Service. Honest Solutions. Guaranteed Results.
For over 45 years, our reputation has been built on quality and accountability. Our one-year workmanship guarantee ensures your plumbing issues stay fixed long after the job is done.

Ontario Sewer Line Repair 

Reliable Infrastructure Solutions for Ontario Homes & Businesses

Plumbing failures in Ontario require more than a simple fix; they demand an understanding of a city built on heavy industry, sprawling logistics corridors, and historic residential roots. As a major hub for the Inland Empire, Ontario’s sewer lines face unique structural pressures from heavy surface traffic and shifting ground conditions. Whether you are dealing with a backup in a historical home or managing a complex sewer network for a commercial facility, you need a team that understands the local underground landscape. At Scott McLeod Plumbing, we approach every sewer repair with practical solutions, technical skill, and the clear communication you deserve.

Property owners trust us because we bring over 45 years of experience to every job site. Our team is fully licensed, bonded, and insured, maintaining an A+ rating with the Better Business Bureau built on decades of integrity. We understand that sewer backups don't wait for business hours, which is why we offer 24/7 emergency support and same-day service when available. Our technical depth is proven by our history of handling high-scale projects for organizations like the LAPD, Chaffey College, and Southern California Edison. We provide total transparency through free inspections and upfront estimates, all backed by a one-year craftsmanship guarantee.

Dealing with a sewer backup? Call (909) 346-2737 to ask about our same-day service and request a free estimate. Se habla español.

Looking for a Career That Flows? Build Your Future With Us

Join our growing plumbing team and be part of a company that values teamwork, craftsmanship, and community.

5-Star Service, Proven Every Day

See why our commitment to quality earns lasting relationships.
    We will be happy to work with his group again for any future plumbing projects.
    “We are very pleased with the work that Brandon did replacing our toilet. The entire process of working with him was easy and pleasant. He was prompt, informative, polite, and respectful. Their pricing was also more reasonable than the other quote we got.”
    Pat N.
    I highly recommend them to anyone in need of trustworthy and skilled plumbers!
    “Scott McLeod Plumbing showed up in my time of need and truly saved the day. They were helpful, reassuring, and professional during a very challenging situation. I had previously worked with another plumbing company that left me uncomfortable with some questionable accounting practices, but Scott McLeod Plumbing completely restored my faith in both honest and quality service. From start to finish, everyone who worked on our project—Teddy, Peter, and Michael—was pleasant, professional, and respectful of our home, including our landscaping. They completed the job quickly, which was especially important since it was a time-sensitive repair, and their attention to detail and care were exceptional. I am so grateful for their expertise and kindness. Thank you, Scott McLeod Plumbing, for turning a stressful experience into a positive one.”
    Vera N.
    These guys were prompt and thorough.
    “Glad I reached out to these guys when a family friend needed help with plumbing issues that had them shutting off their water and heating water just to shower. These guys were prompt and thorough, and about $1K cheaper than another local shop (not naming names, but shame on you, we thought you’d be better). Funny enough, this company is also family-owned, just more modernized and organized, which is a huge plus!”
    Monica G.
    I appreciate the service and would recommend to anyone.
    “Contacted Scott McLeod after my Insurance sent out some bozos who quoted me $6000 to include jackhammering my floor and my shower. Scott McLeod plumbers came out, found the problem which was minimal and required no jackhammering. They were clean and professional, and I would use them again in a heartbeat Thank you for an honest job well done. I appreciate the service and would recommend to anyone. Very friendly from the time of a phone call till the service was completed. Definitely will use again. Eli was awesome.”
    Marlene S.
    We are forever grateful for you guys!!!
    “I called 20 plumbers and seen 4 and Dustin from Scott McLeod the best plumber in the world. I cant thank him enough for how much he had helped us and eased our concerns. He went above and beyond and we are a forever customer and will always always go to him with this company. He is on time, honest and awesome at anything to do with plumbing. He knows his art and we have never seen a better man to do what he does. Also wendy the receptionist is super nice too!”
    Betty S.
    I highly recommend Scott McLeod Plumbing.
    “Heads-up Rancho Cuc residents! I was a first-time customer of Scott McLeod Plumbing this week, and had the good fortune of being assigned to Joseph Alarcon. What a blessing he is....very professional, kind, efficient, and knows what he is doing. He even cleaned up the work area after completion! I was extremely satisfied with the services.”
    Judy M.
    These guys saved the day.
    “Helped out with my washing machine and were more than fair regarding pricing. They came in, did their thing and since I was working that was a blessing because I didn't have to manage it. Complete professionals.”
    Erika B.
    These guys are amazing and we will definitely be a customer for life!
    “Dustin came out to help us with our hot water going out and showed up right on time. He fixed our issue in about ten minutes and was super honest about what went wrong and how to prevent future issues.”
    Lila K.
    I am so happy to have found Scott McLeod Plumbing and will stay with them for all our future needs.
    “We had an issue with the plumbing in our master bathroom develop over the weekend. This had a sudden onset and very odd pattern. On Monday AM we called Scott McLeod Plumbing and to my surprise, they were able to send out a team a few hours later. Based on our description of what was happening, and his inspection of a few things, Teddy deduced immediately what the most likely problem was and explained to us the sequence of events that caused our problem. It was so logical and was communicated to us so clearly that we immediately felt complete trust in the solution he proposed. He was very obviously a complete expert. The cost proposal for all the work was very reasonable. He and his assistant spent the rest of the day solving our problems. It was such a pleasure having two such lovely people take care of our issues. I have used another top-rated local plumbing company in the past and although they did good work, I felt like their pricing was very high.”
    Happy Customer
Scott McLeod Plumbing Scott McLeod Plumbing

Red Flags: When to Call Us

Sewer lines often provide subtle warnings before a total collapse occurs. 

Catching these early can save thousands in restoration costs:

  • System-wide drainage lag. When sinks, toilets, and floor drain all slow down simultaneously.
  • Pneumatic gurgling. Bubbling sounds in your fixtures when a nearby appliance (like a washing machine) drains.
  • Sewer gas infiltration. Persistent foul odors in the yard or basement indicate a breach in the line.
  • Surface anomalies. Soggy, unnaturally green patches of grass or new cracks in your foundation walls.

Extending Your System’s Lifespan

Practicing proactive "drain discipline" is the most effective way to avoid the trauma of a main line backup. We advise our Ontario clients to be strict gatekeepers of their plumbing. This begins with a total ban on "flushable" wipes; these synthetic fibers do not disintegrate and are the leading cause of massive "ragging" clogs. Similarly, never pour fats, oils, or grease down the kitchen sink. They solidify into waxy "fatbergs" once they hit the cool underground pipes, effectively shrinking your sewer line’s diameter until it fully blocks.

Your landscaping also plays a critical role. Ontario’s semi-arid climate forces tree roots to travel incredible distances for moisture; a hairline crack in your sewer line is their primary target. We recommend maintaining a 10-foot "buffer zone" between large trees and your sewer lateral. If your property has mature shade trees, a biennial video pipe audit is your best defense to spot "hair roots" before shifting soil turns a minor leak into a structural collapse.

Call (909) 346-2737 or contact us online to schedule a sewer line inspection in Ontario and get a free estimate. Professional guidance from diagnosis to repair.

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Free Home Plumbing Inspection

Ensure your home's plumbing is in top shape. Get a free comprehensive plumbing inspection and water heater flush from our expert technicians.

Valid Jan 27, 2026 - Dec 31, 2026

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