Licensed Plumber Required

Sewer Line Replacement Cost in Spokane, WA

Mixed Copper/PEX – 3 Bath

The average cost of sewer line replacement in Spokane, WA with Mixed (Copper/PEX) pipes (3-bath, 2,200 sq ft) is $6,460, with most homeowners paying between $5,360 and $7,880 depending on access difficulty, permit requirements, and contractor availability.

Cost Breakdown - Spokane, WA

Parts & Materials
$3,390
Mixed (Copper/PEX) profile
Labor
$2,710
21.2 hrs x $108/hr
Permits & Misc
$360
permits, disposal, parts
Total Estimate
$6,460
Range: $5,360-$7,880

* Estimates based on Spokane area labor rates ($108/hr). Actual costs vary. Get 3 quotes.

Home Profile

Pipe Material
Mixed (Copper/PEX)
Bathrooms
3 Bath
Home Size
2,200 sq ft
Local Labor Rate
$108/hr

Signs You Need This Service

  • !Recurring sewer backups despite repeated cleaning
  • !Sewer line over 40 years old
  • !Tree root intrusion confirmed on camera
  • !Collapsed or offset pipe sections
  • !Escalating repair costs with no lasting fix

What is Included

  • +Full camera inspection and mapping
  • +Excavate full sewer line length
  • +Remove old clay, cast iron, or Orangeburg pipe
  • +Install new PVC or HDPE sewer line
  • +Backfill and restore landscaping
  • +Permit, inspection, and city approval

Ready to Hire a Plumber in Spokane?

Use this estimate as your baseline. Get at least 3 quotes and ask each plumber to itemize parts, labor, and permits separately.

Fair range: $5,360 to $7,880

Compare Quotes from Top-Rated Plumbers via Angi

Frequently Asked Questions

How much does sewer line replacement cost in Spokane, WA?

The average cost of sewer line replacement in Spokane, WA is $6,460, with most homeowners paying between $5,360 and $7,880 depending on home conditions and contractor availability.

How long does sewer line replacement take?

Most sewer line replacement jobs take 21.2 hours for a 3-bathroom home with Mixed (Copper/PEX) pipes. Complex jobs or older homes may require additional time.

Can I do sewer line replacement myself?

This job requires a licensed plumber due to permit requirements, complexity, or safety considerations.

What affects sewer line replacement cost in Spokane?

Key cost factors include pipe material (Mixed (Copper/PEX)), home size (2,200 sq ft, 3 baths), local labor rates ($108/hr in Spokane), and permit fees.

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