This is one of the most common and expensive misunderstandings Repipe Solutions Inc sees with Greater Houston homeowners. When the sewer backs up between your house and the city main, most people assume the city handles it. Most people are wrong. Here’s how sewer line ownership actually works in Houston.
Your Home’s Sewer System Has Three Main Parts
1. The drain, waste, and vent (DWV) system inside your home. You own it completely. This is the network of pipes behind your walls and under your floors that drains all your fixtures.
2. The sewer lateral (or service line). This is the pipe that runs from the exterior wall of your house to the connection point at the city’s main sewer line in the street. You own this too, including the portion that runs under public property like the sidewalk, curb, and street.
3. The city main. The large pipe running under the street that collects waste from multiple homes. The City of Houston or your MUD district owns this and is responsible for maintenance.
The Surprising Part
Even the portion of your sewer line in Houston that runs under the city street is your financial responsibility. If a tree root invades the pipe 5 feet from the city main, 35 feet from your house, under the middle of the asphalt road — that’s your repair bill, including the cost of cutting and replacing the street.
Why This Matters for Repair Costs
A sewer lateral repair in your front yard might cost $2,500 to $6,000. The exact same repair under the street can cost $8,000 to $25,000 because you’re paying for pavement cut, traffic control, permits, and restoration.
How to Protect Yourself
First, confirm the location of your cleanout. Second, consider sewer line insurance available through HomeServe, Service Line Warranties of America, and some homeowner’s insurance riders. Third, get a camera inspection of the full lateral before buying any older Houston home — this should be part of every home inspection in neighborhoods built before 1990.
What the City WILL Do
Clear blockages in the main itself, respond to raw sewage surfacing in public right of way, and investigate complaints about smell or back-up in multiple homes on the same block.
What the City WON’T Do
Touch your lateral for any reason, even if the problem is 2 feet from the connection to the main, even if the blockage is caused by city infrastructure failure, even if the main has collapsed.
We Handle It for You
Repipe Solutions Inc handles sewer lateral repair throughout the Greater Houston Area with camera diagnostics, trenchless repair options, and fixed-price quotes. Call us today at 832-662-4288.