How Much Does Sewer Line Replacement Cost in Colorado? (2026 Guide)

If you own a home in Arvada, Golden, or Westminster, CO, discovering you need a sewer line replacement can be incredibly stressful. Beyond the plumbing disruption, the immediate concern is: "How much is this going to cost?"

In Colorado, the cost to replace a sewer lateral line generally ranges from $4,500 to $15,000. The final price varies based on the depth of the line, pipe length, location, and the replacement method used (traditional trenching vs. trenchless no-dig methods).

Traditional Trenching vs. Trenchless Replacement Costs

Traditional excavation involves digging up your entire yard, lawn, or even your driveway. The pipe replacement itself costs around $80 to $150 per linear foot, but homeowners often face thousands of dollars in restoration costs to rebuild landscaping, patios, or concrete afterward.

Trenchless replacement (like pipe bursting or cured-in-place pipe lining) ranges from $100 to $200 per linear foot. While the upfront cost may seem slightly higher, trenchless eliminates 90% of landscape destruction, making it much more cost-effective overall.

Key Factors that Impact Sewer Replacement Cost in Colorado

• Depth of the Sewer Line: Many older homes in historic Arvada have deep lines, requiring more safety shoring and labor.
• Location under Concrete: If the pipe runs under driveways or public sidewalks, concrete cutting and municipal permits add to the total.
• Tree Root Intrusion: Heavily rooted pipes may require extensive cleaning and prep work before they can be lined or burst.

For an accurate, fixed-price quote, we recommend scheduling an HD sewer camera inspection. This determines exactly what needs to be replaced, avoiding unexpected upcharges.