A Smithfield plumbing inspection gives you a plumber's read on the supply lines, drains, water heater, valves and fixtures, and it can include a camera run of the sewer service. With about two-thirds of homes built before 1980, original pipe is common here. Call the number on this page to be connected with a local plumber in Smithfield.
What will a plumber look for in an older Smithfield home?
Smithfield is the historic Johnston County seat, and its housing shows it: Census survey data puts the median home at 1973, with about 65% built before 1980. In houses of that age a plumber expects some combination of galvanized steel supply lines, early copper, cast iron drains and later repairs in plastic. The inspection traces what's in the crawl space, tests shutoffs that may not have been turned in years, checks the water heater and its venting and can scope the sewer service to the Town's line.
What does the Town's water report say, and what doesn't it say?
Smithfield treats its own Neuse River water and disinfects it with chloramine. The 2025 report found no homes above the lead action level. It also lists a violation for not sending required lead service line notifications by the 2025 deadline; the notices went out in March 2026. That's a paperwork violation, not a test result, but it's a reminder that the Town has a service line inventory you can ask about for the address. Some customers are in a separate Smithfield South district supplied by Johnston County, with its own report.
Neither report tells you about the pipes inside a particular house. That's what the inspection is for.
Who handles permits and backflow here?
Johnston County Building Inspections manages building permit inspections for Smithfield under contract, and the Town's Planning department issues a zoning permit first. If a seller mentions recent plumbing work, the county office in Smithfield can tell you whether it was permitted.
Smithfield's cross-connection ordinance lists irrigation systems among the setups that need a backflow assembly. Assemblies are tested at installation and at least once a year by a town-approved certified tester, at the owner's cost, with repairs due within 30 days.
Local note
Smithfield's wastewater is collected by the Town and treated at Johnston County's central plant south of town. The private sewer service from the house to the Town's line is the owner's, and on a pre-1980 house it's the part most worth seeing on camera.
Plumbing Inspection questions in Smithfield
How can I find out what the water service line is made of?
Does the inspection cover the irrigation backflow device?
Who handles plumbing permits here, and can I ask about past work?
Should the sewer line be scoped as part of the inspection?
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