Every one to two years for most properties, and annually if you have mature trees near the sewer lateral, pipe older than about 40 years, or any history of backups. Also schedule one before buying a home — always.
What Sets the Interval
- Trees over the line. The dominant factor in established Albuquerque neighborhoods. Roots seek the moisture in a lateral and enter at joints and cracks. Annual scoping is reasonable here.
- Pipe age and material. Cast iron and clay — standard in homes built before 1980 — corrode and separate. Orangeburg (bituminous fiber pipe, used mid-century) fails outright and should be scoped and planned for replacement.
- Backup history. If it has happened, the cause is still there unless it was addressed.
- Recent work nearby. Excavation, new construction, or utility work close to the line can shift or damage it.
- Commercial use, which warrants more frequent inspection.
Always Scope Before Buying
This deserves emphasis. A standard home inspection does not include the sewer lateral — it is buried, and inspectors do not scope it. A failing line is a five-figure repair that becomes the buyer’s the day they close. On any Albuquerque home built before 1980, a sewer scope is among the highest-value inspections available, and it is inexpensive relative to what it can reveal.
What Regular Scoping Buys You
It turns a sewer replacement from an emergency into a plan. Root intrusion caught early can be managed with scheduled hydrojetting. A developing crack can get a spot repair instead of a full line replacement. And a line you know is failing lets you budget and schedule rather than reacting to sewage in a bathtub on a holiday weekend.
Between Inspections
Watch for gurgling, multiple slow fixtures, sewer odor, and unusually green or soggy patches in the yard along the line’s path. Any of those warrants a scope regardless of when the last one was.
Contact B. Carlson in Albuquerque and Santa Fe.
