Tankless Water Heaters in Kernersville, NC

What happens after you call

The call connects you with an independent plumber who covers Kernersville. Expect a few questions first: is this a new installation or a repair, what fuel the current heater uses, how many bathrooms the house has and where the heater sits. For a repair, any error code on the display is worth reading off. For a new unit, the plumber will usually want to see the gas meter, the current vent and the electrical outlet near the heater before giving a firm price.

Once you agree on the work, the plumber files for the permit, sets the date and handles the inspection. Removing the old tank and draining it are normally part of the job.

Cost factors

• Gas supply. Tankless burners need far more gas at full fire than a tank, so the line may need to be larger.
• Vent path. A garage wall exit is simpler than a run through a finished attic.
• Location change. Moving the heater from an interior closet to a garage adds piping.
• Efficiency level. Condensing units cost more but need a condensate drain and allow plastic venting.
• Repair parts. Flame sensors, igniters and flow sensors vary widely in price by brand.

Kernersville specifics

Kernersville handles its own building, mechanical and plumbing permits through the Town's Development Services Division, with applications and inspection requests made through its ViewPoint online portal. It is not one of the towns served by Winston-Salem's Inspections Division, so a contractor used to pulling city permits files with the Town instead.

Census survey figures give Kernersville a median build year of 1995, with about 26% of homes from before 1980. Newer houses often have garages and accessible attics that make venting straightforward; the older homes around the South Main Street Historic District may take more planning.

Water comes from the Winston-Salem/Forsyth County system, whose 2025 report lists average hardness of 17.5 ppm, which is soft. That means slower scale buildup than on hard water, though periodic flushing still matters. Forsyth County is fully inside Piedmont Natural Gas territory, but mains don't reach every street.

Before the plumber arrives

• Clear a path to the heater, gas meter and electrical panel
• Note the old heater's age from the label if you can find it
• Write down any error code and when it appears
• Count the showers and appliances that might run at the same time