Licensed Plumber Required

Sewer Line Replacement Cost in San Antonio, TX

Cast Iron – 1 Bath (Pre-1960)

The average cost of sewer line replacement in San Antonio, TX with Cast Iron pipes (1-bath, 900 sq ft) is $6,680, with most homeowners paying between $5,540 and $8,150 depending on access difficulty, permit requirements, and contractor availability.

Cost Breakdown - San Antonio, TX

Parts & Materials
$3,130
Cast Iron profile
Labor
$3,080
26.6 hrs x $98/hr
Permits & Misc
$470
permits, disposal, parts
Total Estimate
$6,680
Range: $5,540-$8,150

* Estimates based on San Antonio area labor rates ($98/hr). Actual costs vary. Get 3 quotes.

Home Profile

Pipe Material
Cast Iron
Bathrooms
1 Bath
Home Size
900 sq ft
Local Labor Rate
$98/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 San Antonio?

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

Fair range: $5,540 to $8,150

Compare Quotes from Top-Rated Plumbers via Angi

Frequently Asked Questions

How much does sewer line replacement cost in San Antonio, TX?

The average cost of sewer line replacement in San Antonio, TX is $6,680, with most homeowners paying between $5,540 and $8,150 depending on home conditions and contractor availability.

How long does sewer line replacement take?

Most sewer line replacement jobs take 26.6 hours for a 1-bathroom home with Cast Iron 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 San Antonio?

Key cost factors include pipe material (Cast Iron), home size (900 sq ft, 1 baths), local labor rates ($98/hr in San Antonio), and permit fees.

Explore Related Pages

-> Water Heater Replacement (Tank) for this home profile-> Same service in Houston, TX-> Same service in New York, NY-> Same service in Los Angeles, CA

Affiliate disclosure: Plumbing Repair IQ participates in the Amazon Associates program. Shop related products