Smithfield treats its own Neuse River water, and about two-thirds of its homes were built before 1980, so aging pipe is a common thread in repairs here. Plumber Raleigh NC is a free referral service, not a plumbing company. Call the number on this page to be connected with a local plumber in Smithfield.
Plumbing services in Smithfield
Smithfield has been the Johnston County seat since the General Assembly chartered it in 1777. It lies about 25 miles southeast of Raleigh in a straight line, where I-95 meets US 70 Business (Market Street) and US 301 (Brightleaf Boulevard), with the Neuse River along its edge. About 11,300 people live in town, and the 27577 ZIP takes in around 28,000.
An older town than Raleigh
Smithfield's median home was built in 1973, and roughly 65% of houses went up before 1980. Raleigh's median is 1997. In practice that means more galvanized or early copper supply lines, cast iron drains, and fixtures that have been patched more than once, especially around the Downtown Smithfield Historic District. A repair in one spot often reveals worn pipe nearby, so it helps to tell the plumber the home's age when you call.
Water and sewer at a glance
| Topic | What the town and county publish |
|---|---|
| Water | Town of Smithfield, treated at its own plant on N 2nd St from the Neuse River |
| Smithfield South | A separate district supplied by Johnston County Utilities; boundaries not described |
| Disinfection | Chloramine (2025 average 2.82 ppm) |
| Sewer | Town collection lines; treatment at Johnston County's central plant south of town |
| Service line ownership | Not published; ask the town before assuming |
The 2025 water quality report found no lead above the action level. It does note one reporting violation: the town missed the deadline for required lead service line notifications and sent them in March 2026. The full report is on the town's website if you want the details.
Backflow rules cover irrigation
Under Smithfield's cross-connection ordinance, lawn and commercial irrigation systems are among the setups that need a backflow assembly. Each one is tested when installed and at least once a year after that, by a town-approved certified tester, at the owner's cost. Failed devices must be repaired within 30 days.
Permits
Johnston County Building Inspections handles building permits and inspections for the town under contract, at 309 E. Market St (919-989-5060). The Town Planning department issues a zoning permit first.
Gas
Piedmont Natural Gas serves Johnston County, though whether a line reaches your street varies. Raleigh, by contrast, is Enbridge Gas territory. A gas odor means leave the house, then call 911 or Piedmont at 800-752-7504.
What to expect
We'll ask what's wrong and where you are, then connect you with an independent plumber who covers Smithfield and the surrounding 27577 area.
Common questions in Smithfield
Who treats Smithfield's water?
Was there a water violation in Smithfield?
Who inspects plumbing work in Smithfield?
Does my irrigation system need a backflow test in Smithfield?
Nearby cities and towns
Sources
- Smithfield, North Carolina (Wikipedia)
- Town of Smithfield 2025 Water Quality Report
- Town of Smithfield 2025 Water Quality Report (Smithfield South)
- Town of Smithfield backflow ordinance
- Town of Smithfield Planning FAQs
- Point2Homes: Smithfield demographics (housing age)
- Johnston County Public Utilities 2024 Wastewater Annual Report
- Johnston County Building Inspections
- NCUC report on natural gas service territories (2014)
- Piedmont Natural Gas safety information
Last updated: