How much does trenchless sewer line replacement cost per foot?

Trenchless sewer line replacement is priced per foot only after a camera inspection verifies your pipe’s condition and access, because costs vary by method and site needs. The biggest cost driver is the repair approach—CIPP lining versus full trenchless replacement—followed by how much pipe must be renewed. Additional variation comes from whether the line needs cleaning or spot fixes first and how easily we can create access points. We routinely perform this work in the greater Seattle area and provide a Straight Forward Price before approved work begins. Ask about our Free Sewer Inspection when a cleanout is accessible.

Typical per-foot pricing depends on:

• Length to be lined or replaced
• Trenchless method selected (CIPP lining vs trenchless replacement)
• Prep work such as hydro jetting or obstruction removal
• Number and location of access points

Book a camera inspection to confirm scope and receive a per-foot estimate you can approve before work starts.

Updated: 2026-10-10

Need help in Seattle, WA? Call (425) 451-2444 or book online. “Chris and Aaron came to assist me with clogged sewer line and drain back-up issues... They were both knowledgeable, kind and personable and did a great job!” — Kim MacLeod