Greater Houston, TX
Sewer line replacement cost in Greater Houston
607,678 homes across Harris County, Fort Bend County, Montgomery County were built before 1975, about 25% of the housing stock. Those are the homes on cast iron, clay, concrete, and Orangeburg lines that fail.
Why sewer lines fail here
Soil. Expansive Gulf Coast clay that swells when wet and shrinks in drought. That movement shears joints and separates lines from the house.
What's in the ground. Cast iron under slab in homes built before the mid 1970s, clay tile in the pre-war neighborhoods, PVC afterward.
Home sales. Buyers of pre-1980 homes inside the Loop and in the first-ring suburbs routinely order a sewer camera inspection alongside the general inspection.
Insurance. Texas homeowner policies typically exclude sewer line failure unless a service line endorsement was purchased, so most replacements are paid out of pocket.
Specialist availability in Greater Houston is not confirmed yet. You can still get a free explanation of your report, and you can request local help so we can tell you if a participating specialist becomes available.
Pre-1975 housing by county
Cities in Greater Houston
Common questions
How much does sewer line replacement cost in Greater Houston?
Most full replacements in Greater Houston land between $6,000 to $15,000 for trenchless lining and $5,000 to $25,000 for dig-and-replace, depending on length, depth, and what the line runs under. Spot repairs run $1,500 to $4,500.
Why do sewer lines fail in Greater Houston?
Expansive Gulf Coast clay that swells when wet and shrinks in drought. That movement shears joints and separates lines from the house.
What kind of pipe is under homes in Greater Houston?
Cast iron under slab in homes built before the mid 1970s, clay tile in the pre-war neighborhoods, PVC afterward.
Do buyers get sewer inspections in Greater Houston?
Buyers of pre-1980 homes inside the Loop and in the first-ring suburbs routinely order a sewer camera inspection alongside the general inspection.
Will my insurance pay for it?
Texas homeowner policies typically exclude sewer line failure unless a service line endorsement was purchased, so most replacements are paid out of pocket.