A drain that keeps backing up - especially if multiple fixtures are affected - often points to a main-line clog from grease, scale, or roots. Standard drain cleaning runs $200 to $500; recurring issues may need hydro jetting ($350 to $1,500+) and a camera inspection to find the cause.
Likely causes
| Cause | What's happening |
|---|---|
| Main-line clog | Affects multiple fixtures at once. |
| Grease or scale buildup | Narrows the pipe over time. |
| Root intrusion | Roots enter older lines and trap debris. |
- Sewage backing up into the home
- Multiple drains overflowing
If anyone is in danger, or you smell gas, leave the home and call 911 or your utility immediately.
Frequently asked questions
What causes drain keeps backing up?+
Several issues can produce this symptom, from simple maintenance items to component failure. The likely causes table on this page lists what each cause looks like so you can describe the problem accurately when you request quotes.
Should I call someone right away?+
Call promptly if you see active water, no cooling during Arizona summer heat, burning smells, or repeated breaker trips. Otherwise, gather details and compare two written quotes before approving repairs.
Can PlumbAirAZ diagnose the problem?+
PlumbAirAZ is an Arizona plumbing and HVAC pricing and referral marketplace, not a contractor. We publish local price ranges and route your quote request to independent licensed service providers who contact you directly.
Related pages
Page Summary
- Topic
- Drain Keeps Backing Up
- Location
- Arizona
- Best for
- Homeowners diagnosing the issue
- Primary action
- Request a professional diagnosis
- Related services
- See related pages
- Last reviewed
- June 2026
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Last reviewed: June 2026
PlumbAirAZ.com is a pricing, education, and referral marketplace. We do not perform the work unless expressly stated. Your request may be shared with or sold to independent HVAC, plumbing, or home service providers that may contact you about your project.