Tankless Water Heaters in Apex, NC

What's different about Apex

Apex has some of the newest housing in Wake County. The median home was built in 2008 and fewer than 4% were built before 1980, per Census survey data. Most houses have a garage or exterior wall close to the existing heater, which keeps vent runs short. Homes in the downtown historic district are the exception and can need more planning.

Water quality works in your favor. Apex water comes from Jordan Lake through the Cary/Apex treatment plant, and the Town's 2024 report describes it as moderately soft at about 1.9 grains per gallon. Scale builds slowly at that level, though annual descaling is still a good habit.

The permit rule is stricter than in many nearby towns. Apex Building Inspections and Permitting says a permit is required for any water heater replacement, even like-for-like, and the work must be done by a qualified contractor rather than the homeowner. The plumber you're connected with can handle it.

Gas comes from Enbridge Gas North Carolina, formerly PSNC, where it's available on your street.

Condensing or non-condensing

When to call

• Your original builder-grade tank is 10 or more years old
• The family has outgrown a 40- or 50-gallon tank
• An existing tankless unit shows a code or won't ignite
• Hot water turns cold for a few seconds mid-shower
• You're finishing a basement or adding a bath

Planning around the calendar

Apex switches from chloramine to chlorine for several weeks each spring, which doesn't affect a water heater but can change how the water smells at the tap. The season that matters more is winter: colder incoming water means a tankless unit delivers fewer gallons per minute at full temperature, so sizing should be based on January water. Because a permit and inspection are required here, start before your tank fails rather than after. If you ever smell gas, go outside and call 911 or Enbridge Gas North Carolina.