Tennessee · 4 covered places · 7 ZIP codes
Plumbers in Washington County, TN
We cover 4 cities and towns in Washington County, Tennessee, across 7 ZIP codes, including Johnson City, Jonesborough, Telford. About 139,000 people live in those ZIP codes. Most homes date from 1980 to 1999, old enough that original water heaters, valves and drains are wearing out.
| Year built | Share of homes |
|---|---|
| Before 1940 | 7% |
| 1940–1959 | 12% |
| 1960–1979 | 23% |
| 1980–1999 | 30% |
| 2000 or later | 28% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Johnson City | 101,575 | 20% |
| Jonesborough | 29,247 | 15% |
| Telford | 4,720 | 9% |
| Fall Branch | 3,566 | 26% |
What goes wrong in Washington County homes
Mostly electric homes
81% of occupied homes here heat with electricity, and electric tank water heaters are the norm. Failed elements and thermostats are repairable, but tanks that leak need replacement. Heat pump water heaters are an efficient replacement where there's space and airflow.
1980s and 90s construction and polybutylene
30% 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.
Winter freezes
43% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a cold Tennessee winter those are the lines that freeze and split. See frozen and burst pipe repair.
Common plumbing work in Washington County
City pages in Washington County
Other covered towns in Washington County
- Fall Branch (1 ZIP)
- Jonesborough (1 ZIP)
- Telford (1 ZIP)
Washington County plumbing FAQ
Which towns in Washington County do you cover?
4 places: Fall Branch, Johnson City, Jonesborough, Telford. Enter your ZIP code to confirm coverage for your street.
How old are homes in Washington County?
Across the covered ZIP codes, Census estimates put 19% of homes as built before 1960, 23% from 1960 to 1979, 30% from 1980 to 1999 and 28% in 2000 or later.
Who licenses plumbers in Washington County, TN?
Tennessee's Board for Licensing Contractors licenses contractors on larger projects, and many cities and counties license plumbers locally.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Washington County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Washington County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.