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King County · Updated August 2026

Best Sewer Line Repair in Auburn, WA

Sewer repair fixes breaks, root intrusion, and sags in the side sewer running from your house to the city main. On the wet side you own that entire line — including under the street — and our root-heavy, wet soils are hard on old clay and concrete pipe.

$3,000–$25,000
Typical cost, spot repair to full replacement

Wet-side market range — get itemized quotes before work starts

Call sooner, not later, if:
  • Sewage smell in the yard or crawl space
  • Lowest drains backing up while upstairs runs fine
  • Recurring mainline clogs — roots almost always

Top-Rated Companies for Sewer Line Repair in Auburn

Companies whose focus matches this work are listed first, then Auburn's other top-rated plumbers. Same no-pay-to-play ranking as everywhere on Wetside Plumbing — the formula.

#1 · AUBURN

A Advanced Septic & Construction Services

4.8 rating · 2,865 Google reviews · Septic system service
1602 W Valley Hwy S, Auburn, WA 98001
✓ WA License VerifiedL&I #ADVANSS814MA · check it yourself ↗
#2 · AUBURN

Roto-Rooter Plumbing & Water Cleanup

4.8 rating · 669 Google reviews · Plumber
903 E Main St #208, Auburn, WA 98002
#3 · AUBURN

AAA Septic & Plumbing LLC.

4.8 rating · 300 Google reviews · Septic system service
32228 116th Ave SE, Auburn, WA 98092
✓ WA License VerifiedL&I #AAASESP815B5 · check it yourself ↗
#7 · AUBURN

Beacon Plumbing, Heating, Electrical & Mechanical Inc - Auburn

4.8 rating · 311 Google reviews · Plumber
918 A St SE B, Auburn, WA 98002
#8 · AUBURN

Cooper & Sons Plumbing

4.8 rating · 55 Google reviews · Plumber
33320 E Lake Holm Dr SE, Auburn, WA 98092
#11 · AUBURN

King Pro Plumbing

5.0 rating · 8 Google reviews · Plumber
31217 124th Ave SE, Auburn, WA 98092

Google Business data, 2026-08-07. See the full Auburn ranking →

Also searched as: blocked sewer pipe, broken sewer pipe, broken sewers, clogged mainline sewer, clogged sewer, clogged sewer main.

Before You Call

Sewer Line Repair: Common Questions

Should I get a camera inspection first?

Always, for anything beyond a simple clog. $150–$500, often credited toward repairs, and it turns a five-figure guess into an evidence-based decision. Get the footage itself, not a verbal summary.

Who pays if the break is under the street?

In most wet-side jurisdictions, including Seattle: you. Homeowners own the full side sewer to the main. It surprises everyone — check our sewer cost guide before you're quoted.

How do I check a company's license?

Ask for their Washington L&I contractor number and verify it at secure.lni.wa.gov/verify — active license, bond, and insurance. Listings above with a green badge are ones we've already matched to an active license in state records.

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