Cost guide · Sewer lines

Sewer Line Repair Cost in Spokane

As of November 6, 2026, national cost guides put sewer line replacement at $50–$250 per linear foot, or roughly $2,000–$10,000 for a typical 40-foot line. Most backups never get that far: clearing the main line runs $175–$600. These are national ranges, not Spokane quotes.

Published November 10, 2026 · Figures and rules checked against the sources listed at the end of this page.

Clear it, inspect it, then decide

Clear the blockage. Snaking the main line: $175–$600. Hydro jetting: $300–$800.
Look inside. A camera inspection, $125–$500, shows whether the pipe is sound.
Repair or replace only what is damaged. A sewer main repair runs $1,880–$3,700.

Replacement cost by length

Sewer line replacement, national ranges (read November 6, 2026)
Length	Range
10 feet	$500–$2,500
20 feet	$1,000–$5,000
40 feet	$2,000–$10,000
60 feet	$3,000–$15,000
80 feet	$4,000–$20,000

Dig or trenchless

Replacement methods, national ranges per linear foot
Method	Per foot	When it fits
Open trench	$50–$250	Collapsed or badly sagging pipe; clear ground above
Pipe bursting	$60–$200	Pipe is broken but the route is sound
Cured-in-place lining	$90–$250	Cracks and root entry in an otherwise intact pipe

What pushes the price

Depth and length of the run from the house to the connection.
What is on top: lawn is cheap to restore; a driveway, mature tree or deck is not.
How much is damaged. A single break is a spot repair, not a replacement.
Permit and inspection. Ask for these as their own line on the quote (permit basics).

Before you sign

Ask to see the camera footage and where along the line the damage is.
Get a second quote for anything priced as a full replacement.
Verify the company’s Washington plumbing contractor license with L&I (how to do it).
Ask what restoration is included: backfill, concrete, landscaping.

Sources and dates

Every figure and rule above names where it came from and the date it was read. If a source disagrees with a quote you receive, the quote wins: it reflects your house, your pipes and this week's demand. Prices are rechecked at least every six months.

City of Spokane, Business & Development, "Residential" — read November 10, 2026. Separate permits for plumbing, mechanical and electrical work; online permitting for licensed contractors; Permit Center contact.
HomeGuide, "How Much Does Sewer Line Replacement Cost? (2026)" — read November 6, 2026. Replacement per foot and by length; camera inspection; trenchless methods. National.
HomeGuide, "How Much Does Drain Cleaning Cost? (2026)" — read November 6, 2026. Main-line snaking and jetting. National.

Sewer line questions

How much does sewer line replacement cost in Spokane?

National cost guides, read November 6, 2026, put sewer line replacement at $50–$250 per linear foot, or about $2,000–$10,000 for a typical 40-foot run, averaging $6,000. These are national figures; we have not verified any Spokane contractor's prices.

Does a backup mean the line has to be replaced?

Usually not. Most backups are cleared by snaking the main line ($175–$600) or jetting it ($300–$800). Replacement comes up when a camera shows a collapsed, broken or badly offset pipe, or when the same blockage returns again and again.

What is trenchless sewer repair?

Methods that renew the pipe without digging up its full length. Pipe bursting runs $60–$200 per linear foot and cured-in-place lining $90–$250 per linear foot nationally. Whether either suits your line depends on what the camera finds.

Do I need a permit to replace a sewer line in Spokane?

Ask before work starts. The City of Spokane publishes a Side Sewer Installation Handbook, which we have not read, so we cannot say what a sewer line job needs. Ask the Permit Center at 509.625.6300 what your job needs, and ask the contractor to show the permit on the quote.