Where leaks show up in Kannapolis
Where the unit sits decides how urgent a leak is, and in Kannapolis that is not uniform. The mill village housing is crawlspace-dominant with genuinely restricted clearances, and we quote that access before the visit. The post-2000 subdivisions are straightforward garage and closet installs.
That matters more than the leak itself. Water escaping from a unit in a garage is an inconvenience. The same leak from an attic or an upper-floor closet is a ceiling, and it is the one case where we would rather you shut the cold inlet and call than wait for the morning rate.
- From the tank body: the unit is finished. A perforated shell cannot be patched, and anyone who says otherwise is selling you a delay.
- From the relief valve discharge: usually pressure rather than a failed valve. Put a gauge on a hose bib before replacing anything.
- From a fitting or connector: genuinely repairable, and frequently a $150 to $300 job rather than a replacement.
- Pooling with no obvious source: often condensate or the pan drain rather than the heater, which is worth establishing before anyone quotes you a tank.

What Kannapolis itself changes
The housing in Kannapolis
Kannapolis is a genuine mill-village barbell with real income behind it. 29.7% of the housing predates 1960, concentrated in the former Cannon Mills village, while 40.7% was built in 2000 or later in the newer subdivisions. Two very different jobs in one town: old tanks in old houses with tight access, and second-cycle replacements in modern garages.
The pipe era
Galvanised is a realistic possibility in the pre-1960 mill village stock and it restricts hot and cold together as it corrodes inward. The 1980s and 1990s portion carries polybutylene. Post-2000 is copper and PEX.