Who is responsible for sewer line repair? It depends on where the problem occurs. In Tempe, the city is responsible for the maintenance and repair of the water system, but homeowners are responsible for any maintenance, repairs, or work needed on the sewer lateral lines that connect your home to the city’s public sewer main.
So, if it’s a city’s sewer line, it’s their problem. Anything from the main to your home is your responsibility, even if it goes underneath sidewalks or is part of the street where your pipes connect to the city line.
Public vs Private Sewer Lines
Sewer systems are divided into two sections, and understanding the difference is key to knowing who is responsible for main sewer line issues.
City Responsibility: The Main Sewer Line
The main sewer line runs beneath public streets and is maintained by the city. This is the larger system that collects wastewater from you and your neighbors and transports it to a treatment facility.
The city is responsible for:
- Maintaining the main sewer system
- Clearing blockages within public infrastructure
- Repairing or replacing municipal sewer lines
If you’re asking who is responsible for main sewer line problems, this is what you’re likely referring to. It’s the connections, the lateral lines, that you’re responsible for.
Homeowner Responsibility: The Sewer Lateral
The sewer lateral is the pipe that connects your home to the city’s main line. This line typically runs from your house, under your yard or slab foundation, and connects to the public system near the street.
Homeowners are responsible for:
- Clearing clogs within the lateral line
- Repairing damage or breaks
- Replacing the sewer line if it fails
In Tempe, this responsibility extends all the way to the connection point at the city system, even beyond the property line up to where it connects to the main sewer system.
Common Sewer Problems Homeowners Are Responsible For
In the Phoenix area, we often see sewer issues because of:
- Tree roots in pipes: Roots can enter small cracks and expand inside the pipe
- Pipe corrosion: Older sewer pipe systems that deteriorate over time
- Cracks from soil movement: Shifting desert soil can stress and misalign pipes
- Grease and debris buildup: Gradual accumulation can restrict flow
- Collapsed or sagging sections: Structural failure that disrupts proper drainage
How to Tell If It’s Your Responsibility or the City’s
While you will want to get a professional diagnosis, here’s a typical breakdown of who is responsible for sewer line repair.
| Situation | Likely Responsibility |
| Issue affecting only your home | Homeowner (sewer lateral) |
| Multiple drains in your home backing up | Homeowner (lateral or connection point) |
| Sewer smell in house or near foundation | Homeowner (lateral) |
| Wet spots or sinking areas in your yard | Homeowner (underground pipe damage) |
| Multiple homes on your street affected | City (main sewer line) |
| Reports of sewer issues in your neighborhood | City (public system problem) |
| Problem located beyond connection point in street | City (main line) |
How to Confirm Who Is Responsible
Misidentifying the problem can lead to delays, unnecessary excavation, or spending money on the wrong solution. That is why accurate diagnosis is critical before any work begins. The most reliable way to determine responsibility is through a sewer camera inspection.
This process allows a technician to:
- Locate the exact position of the problem.
- Assess the condition of the pipe.
- Determine whether the issue is in the lateral or main line.
The Bottom Line
In Tempe, most sewer issues that affect your home are your responsibility because they occur within the sewer lateral, not the city’s main line. Factors like an aging cast iron sewer pipe, shifting desert soil, and mineral buildup from hard water all contribute to problems developing in these private lines over time.
With decades of experience serving Tempe and the greater Phoenix area, George Brazil Plumbing & Electrical understands how local conditions impact sewer systems and how to accurately pinpoint the source of the problem. Our highly trained technicians focus on clear diagnosis so you know exactly what you are dealing with before repair work begins.
Schedule service with George Brazil to determine exactly who is responsible for the repair before you move forward with costly work.