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King County · Updated August 2026

Best Sewer Line Repair in Redmond, 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 Redmond

Same no-pay-to-play ranking as everywhere on Wetside Plumbing — the formula.

#1 · REDMOND

Ballard Heating, Air Conditioning & Electrical

5.0 rating · 71 Google reviews · HVAC contractor
14953 NE 95th St, Redmond, WA 98052
#2 · REDMOND

Water Restoration Pros

5.0 rating · 41 Google reviews · Water damage restoration service
15352 NE 96th Pl C6, Redmond, WA 98052
#3 · REDMOND

1STBATH INC - Bathroom Remodeling

5.0 rating · 34 Google reviews · Bathroom remodeler
17525 NE 40th St, Redmond, WA 98052
✓ WA License VerifiedL&I #1STBAI*755M9 · check it yourself ↗
#4 · REDMOND

Halo Plumbing

5.0 rating · 24 Google reviews · Plumber
23525 NE Novelty Hill Rd Ste 11, Redmond, WA 98053
#5 · REDMOND

Home Comfort Alliance - Redmond

4.8 rating · 1,999 Google reviews · HVAC contractor
9680 153rd Ave NE, Redmond, WA 98052
#6 · REDMOND

Westgate Plumbing Services

4.9 rating · 28 Google reviews · Plumber
15809 Bear Creek Pkwy #305, Redmond, WA 98052
#8 · REDMOND

Anson Plumbing & Heating

4.9 rating · 9 Google reviews · Plumber
4142 148th Ave NE H10, Redmond, WA 98052
#9 · REDMOND

Tub Cove Inc

4.7 rating · 81 Google reviews · Bathroom remodeler
2797 152nd Ave NE Bldg 7, Redmond, WA 98052
#10 · REDMOND

Redmond Plumbing Solutions

5.0 rating · 2 Google reviews · Plumber
15946 Redmond Wy ste 204, Redmond, WA 98052
#11 · REDMOND

Aldo Plumbing Redmond, WA

4.5 rating · 8 Google reviews · Plumber
20409 NE Novelty Hill Rd, Redmond, WA 98053
#12 · REDMOND

Bishop Plumbing Services

3.7 rating · 6 Google reviews · Plumber
6001 140th Ave NE, Redmond, WA 98052

Google Business data, 2026-08-07. See the full Redmond 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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