A plumbing inspection reviews the water service from the meter, the supply piping, drains and vents, the water heater, fixtures and, with a camera, the sewer lateral. In San Diego the owner maintains the water system from the meter and the lateral up to the property line, so their condition is the owner's concern. Call the number on this page to be connected with a local plumber in San Diego who can inspect the home and explain what they find.

Why age matters in San Diego
The median home in the city was built around 1979, and roughly half were built before 1980, based on ACS data compiled by point2homes. Older dense communities around Balboa Park, such as Hillcrest and North Park, can still have galvanized supply lines, cast iron drains and aging sewer laterals. Newer tracts are more often slab-on-grade, where pipes run under the floor out of sight, while many older houses sit over a crawl space that a plumber can actually get into.
Items on a typical inspection
- Main shutoff and the service line from the meter, including material and condition.
- Static water pressure and the pressure regulator, if one is installed.
- Exposed supply lines, angle stops and signs of corrosion or pinhole leaks.
- Water heater age, venting, relief valve, drain pan and sediment.
- Drain flow at each fixture, plus gurgling or sewer odor.
- Toilets, faucets and tub or shower valves.
- Hose bibs, irrigation and any backflow device outside.
Where the owner's responsibility starts
The City of San Diego says the property owner maintains the water system from the meter onward; the City side is before the meter. For sewer, the owner repairs the lateral between the house and the property line. A camera run down the lateral is the practical way to spot roots, offsets or broken pipe before closing on an older house. On the public side, the City's water quality report states its service line inventory did not identify any lead in the system, though that finding does not cover piping inside a home.
Clues from hard water and salt air
City plant water averages around 14 grains per gallon of hardness, so scale shows up in nearly every San Diego inspection. Crusty aerators, stiff shower valves and a rumbling tank heater say a lot about the hidden plumbing. Near the beach, salt air corrodes hose bibs, exterior valves and outdoor water heaters, which are worth a close look.
Times to book one
- Before buying a home, especially one built before 1980.
- Before a kitchen or bathroom remodel.
- After a water bill that jumps for no clear reason.
- When several drains slow down at once.
Cost factors
Price depends on the size of the home, the number of bathrooms and fixtures, whether a sewer camera is added, and how much piping can be reached from the crawl space, attic or garage.
Plumbing Inspection questions from San Diego homeowners
Who maintains the sewer lateral on a San Diego property?
Where does my responsibility for the water line begin?
Should I add a sewer camera inspection?
Can an inspection find a slab leak?
Related plumbing services in San Diego
Helpful guides
Plumbing Inspection in nearby cities and towns
San Diego County
Sources
- San Diego housing by year built (point2homes, ACS data)
- City of San Diego: Plumbing information (property owner responsibility for water and sewer lines)
- City of San Diego: Plumbing information (sewer laterals and the Sewer Emergency Line)
- City of San Diego Public Utilities: Annual Drinking Water Quality Report
- City of San Diego Drinking Water Quality Report (water hardness, about 13.8-14.2 grains per gallon from City plants)
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