New Jersey · 14 covered places · 14 ZIP codes
Plumbers in Hunterdon County, NJ
We cover 14 cities and towns in Hunterdon County, New Jersey, across 14 ZIP codes, including Flemington, Whitehouse Station, Lebanon. About 104,000 people live in those ZIP codes. 26% of the homes were built before 1960, so galvanized pipe and old cast iron drains are common.
| Year built | Share of homes |
|---|---|
| Before 1940 | 15% |
| 1940–1959 | 11% |
| 1960–1979 | 24% |
| 1980–1999 | 37% |
| 2000 or later | 14% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Flemington | 32,002 | 20% |
| Whitehouse Station | 10,539 | 26% |
| Lebanon | 8,772 | 29% |
| Milford | 8,376 | 36% |
| Califon | 7,451 | 23% |
| Annandale | 7,391 | 14% |
| Clinton | 6,838 | 18% |
| Ringoes | 5,950 | 23% |
| Glen Gardner | 5,255 | 28% |
| Frenchtown | 4,639 | 42% |
What goes wrong in Hunterdon County homes
Oil-heated homes
30% of occupied homes here heat with fuel oil, far above the national norm. Many of them make hot water with a tankless coil inside the boiler, which runs the boiler all summer. Plumbers often replace the coil with an indirect tank or a standalone water heater when the boiler is serviced or replaced.
1980s and 90s construction and polybutylene
37% of homes were built between 1980 and 1999. Polybutylene supply pipe was installed widely in US homes from about 1978 to 1995, so houses from these years are worth checking for gray plastic pipe stamped PB2110, usually visible at the water heater or under sinks. Insurers and buyers often ask about it. See polybutylene replacement.
Pre-1960 homes: galvanized pipe and cast iron
26% of homes in Hunterdon County's covered ZIP codes were built before 1960, 15% of them before 1940. Houses that old often still have galvanized steel supply lines that rust closed from the inside, and cast iron or clay sewer pipe that cracks and lets roots in. Weak pressure at upstairs fixtures, brown water after a shutoff and slow drains are the usual clues. Typical fixes are whole-house repiping and a sewer camera inspection.
Winter freezes
50% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a cold New Jersey winter those are the lines that freeze and split. See frozen and burst pipe repair.
Common plumbing work in Hunterdon County
Other covered towns in Hunterdon County
- Annandale (1 ZIP)
- Bloomsbury (1 ZIP)
- Califon (1 ZIP)
- Clinton (1 ZIP)
- Flemington (1 ZIP)
- Frenchtown (1 ZIP)
- Glen Gardner (1 ZIP)
- High Bridge (1 ZIP)
- Lebanon (1 ZIP)
- Milford (1 ZIP)
- Oldwick (1 ZIP)
- Pottersville (1 ZIP)
- Ringoes (1 ZIP)
- Whitehouse Station (1 ZIP)
Hunterdon County plumbing FAQ
Which towns in Hunterdon County do you cover?
14 places: Annandale, Bloomsbury, Califon, Clinton, Flemington, Frenchtown, Glen Gardner, High Bridge, Lebanon, Milford, Oldwick, Pottersville, Ringoes, Whitehouse Station. Enter your ZIP code to confirm coverage for your street.
How old are homes in Hunterdon County?
Across the covered ZIP codes, Census estimates put 26% of homes as built before 1960, 24% from 1960 to 1979, 37% from 1980 to 1999 and 14% in 2000 or later.
Who licenses plumbers in Hunterdon County, NJ?
The New Jersey State Board of Examiners of Master Plumbers licenses master plumbers; check a license through the Division of Consumer Affairs.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Hunterdon County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Hunterdon County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.