Sewer Drain Full Line Replacement

Construction worker inspecting large underground pipes in a trench.
01/22/2026|South Texas Piping|

Signs You Need Sewer Line Replacement

  • Frequent drain clogs in your home or business
  • Consistently slow drainage or water backing up in sinks, showers, or toilets
  • Water holding in the sewer or drain lines, indicating poor flow

Common Causes of Sewer Line Damage

  • Tree roots entering and obstructing the sewer or drain lines (root intrusion)
  • Collapse of the sewer line due to age, wear, or material failure
  • Ground shifting or settling, causing the sewer line to move or develop “bellies” that hold water and debris
  • Improper installation of drain lines, which can create low spots where waste accumulates

Inspection Recommendations

If you notice persistent drainage problems or water retention in your lines, it is important to schedule a professional sewer inspection. Early detection can prevent more severe issues and costly repairs down the line.

Replacement Process Details

  • Sewer line replacement projects typically take 1–4 business days, depending on the depth and length of the line, as well as the complexity of the job.
  • If the damaged line is located beneath a building, tunnel excavation may be required to access and replace the pipe.
  • All new replacement lines are installed using durable Schedule 40 PVC piping. For tunnel jobs, proper hangers are used, and lines are set at a quarter-inch per foot slope to ensure proper drainage and minimize future blockages.
  • Obstacles such as driveways, patios, large tree roots, and concrete removal can increase the time and cost of the project.
  • We offer project financing options to help you get started quickly.

Cost Estimates

  • Typical sewer line replacement projects range from $3,000 to $10,000 or more, with an average cost around $5,800 (parts and labor included).
  • Deeper or more complex jobs, such as those involving 100 feet or more of piping, can range from $3,750 up to $70,000, depending on accessibility and site conditions.

Alternative Solutions for Kitchen Lines

Kitchen drain lines often experience issues due to grease buildup, especially in older homes with cast iron piping. As an alternative to full replacement, we can reroute the kitchen main line or perform a tunnel excavation to replace only the affected section. These options provide flexibility and can address specific problem areas without replacing the entire drain system.