
Thomas Plumbing Inc. provides professional sewer repair and sewer line replacement for homes and businesses throughout Morgan Hill, Gilroy, San Martin, and Santa Clara County. Whether you're dealing with sewer backups, broken sewer lines, tree root intrusion, or aging pipes, our experienced plumbers are ready to help.
If multiple drains frequently back up or sewage returns into your home or business, it may indicate a damaged or blocked sewer line that requires professional repair.
When several sinks, tubs, or toilets drain slowly at the same time, the problem may be deeper within your main sewer line rather than an individual drain.
Tree roots naturally seek moisture and can invade sewer pipes through small cracks or loose joints. Left untreated, roots can cause serious blockages and pipe damage.
Persistent sewer odors inside or outside your property may indicate a cracked sewer pipe, broken sewer connection, or damaged plumbing vent that should be inspected promptly.
Wet or unusually green patches of grass may be caused by an underground sewer leak. Early repairs can help prevent additional property damage.
Older clay, cast iron, or Orangeburg sewer lines are more susceptible to cracking, corrosion, and root intrusion. Replacing aging sewer lines before they fail can help prevent costly emergencies.
Not every sewer repair requires extensive excavation. Thomas Plumbing Inc. offers traditional sewer repairs and replacement options. After inspecting your sewer line with professional camera equipment, we'll recommend the most effective and cost-efficient solution for your property.

When sewer lines are damaged by cracks, root intrusion, shifting soil, or corrosion, our experienced plumbers provide dependable repairs designed to restore proper flow and prevent future problems.
Professional sewer camera inspections allow us to accurately identify broken pipes, root intrusion, offsets, corrosion, and other underground sewer problems. This helps us recommend the most effective repair solution for your property.
If you're buying or selling a home, Thomas Plumbing Inc. also provides NASSCO-certified lateral sewer inspections. These inspections help identify defects in private sewer laterals and meet the requirements of many local real estate transactions. Learn more on our NASSCO Certified Sewer Inspections page.
Traditional sewer repair involves excavating the affected section of the sewer line to repair or replace damaged pipe. This method is often the best solution when sewer lines have collapsed, significant sections are severely damaged, or trenchless methods are not appropriate. While excavation may require restoring landscaping, driveways, or concrete, it provides full access to the damaged pipe and can be the most effective long-term solution in certain situations.
Every sewer repair begins with a professional sewer camera inspection. By locating the exact cause and location of the problem, we can recommend the most effective repair method—whether that's a spot repair, trenchless solution, or complete sewer line replacement. Accurate diagnosis helps prevent unnecessary work and ensures you receive the right solution for your plumbing system.

Recurring sewer backups, multiple slow drains, sewage odors, wet areas in your yard, or frequent drain clogs can all indicate a damaged sewer line. A professional sewer camera inspection is the best way to determine the condition of your sewer system and whether repair or replacement is the right solution.
Yes. Tree roots naturally seek moisture and often enter sewer pipes through small cracks or loose joints. Over time, root intrusion can restrict flow, cause recurring backups, and even break the pipe. Early detection and repair can help prevent more extensive damage.
Sewer lines can be damaged by tree roots, aging pipes, shifting soil, corrosion, cracks, or collapsed sections. A sewer camera inspection can help determine the condition of the line.
We inspect the sewer line and evaluate the location and extent of the damage. Our plumbers can then explain the findings and recommend the appropriate repair or replacement.
Every project is different depending on the length of the sewer line, soil conditions, access, and repair method. After inspecting your sewer system, we'll provide a clear explanation of the recommended work and an estimated project timeline.
Yes. Thomas Plumbing Inc. uses professional sewer camera inspection equipment to accurately locate blockages, root intrusion, broken pipes, offsets, corrosion, and other underground sewer problems. Camera inspections help us recommend the most effective repair solution while avoiding unnecessary excavation.
Founded by Arthur Thomas in 1958, Thomas Plumbing Inc. has proudly served Morgan Hill and Santa Clara County for more than 65 years. Today, we're still family-owned and operated, delivering the same honest, dependable service our customers have trusted for generations.
Three generations of plumbing experience allow us to accurately diagnose sewer problems, recommend practical repair options, and deliver long-lasting solutions tailored to your property's needs.
We use professional sewer camera inspections to propose efficient, accurate, and minimally invasive sewer solutions whenever appropriate.
Every sewer system is different. We explain your repair options clearly and recommend the solution that's best for your property—not simply the most expensive one.
From single-family homes and apartment complexes to restaurants, retail centers, offices, and commercial facilities, we provide dependable sewer repair and replacement services throughout Morgan Hill and Santa Clara County.
Our licensed plumbing professionals are committed to quality workmanship, clear communication, and exceptional customer service on every sewer repair and replacement project.
License #356040 • Family-Owned Since 1958 • Serving Morgan Hill & Santa Clara County
Whether you're dealing with recurring sewer backups, damaged sewer lines, tree root intrusion, or aging pipes, Thomas Plumbing Inc. provides dependable sewer line repair and replacement. We’ll evaluate the problem, explain your options, and recommend the best solution to restore your plumbing system and protect your property.
Family-Owned Since 1958 • Third-Generation Plumbing Company • Traditional & Trenchless Sewer Repair • Residential & Commercial Services
Call Thomas Plumbing Inc. Today
(408) 778-4340
Thomas Plumbing Inc
16305 Vineyard Blvd Suite A, Morgan Hill, CA, USA