Tennessee · 4 covered places · 34 ZIP codes
Plumbers in Knox County, TN
We cover 4 cities and towns in Knox County, Tennessee, across 34 ZIP codes, including Knoxville, Powell, Farragut. About 503,000 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 | 13% |
| 1960–1979 | 24% |
| 1980–1999 | 29% |
| 2000 or later | 27% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Knoxville | 442,846 | 21% |
| Powell | 28,872 | 8% |
| Farragut | 28,237 | 3% |
| Mascot | 3,011 | 27% |
What goes wrong in Knox County homes
1980s and 90s construction and polybutylene
29% 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.
Mostly electric homes
63% 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.
Winter freezes
44% 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 Knox County
City pages in Knox County
Other covered towns in Knox County
- Farragut (1 ZIP)
- Mascot (1 ZIP)
- Powell (1 ZIP)
Knox County plumbing FAQ
Which towns in Knox County do you cover?
4 places: Farragut, Knoxville, Mascot, Powell. Enter your ZIP code to confirm coverage for your street.
How old are homes in Knox County?
Across the covered ZIP codes, Census estimates put 19% of homes as built before 1960, 24% from 1960 to 1979, 29% from 1980 to 1999 and 27% in 2000 or later.
Who licenses plumbers in Knox 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 Knox County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Knox County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.