Tankless Water Heaters

Prestige Plumbing installs Navien tankless systems for $4,909 and Rinnai for $5,075, flat-rate. Converting from a tank, which adds gas line sizing, venting, and condensate work, runs $5,735. A tank holds 50 gallons and quits. A tankless unit heats on demand: back-to-back showers, the dishwasher, and the washer at once, for as long as you like.

Is tankless worth it?

Honest answer: not for everyone. The math works when your household outruns the tank, your tank is due for replacement anyway, or you want the garage space back. A tankless unit runs 20-plus years against 8 to 12 for a tank, so one tankless outlives two tanks while it stops reheating 50 gallons around the clock. If your current tank is young and keeps up, keep it. Matt will tell you which camp you're in before quoting a dime.

Own one already? Flush it yearly

Lowcountry hard water scales up heat exchangers, and skipping the annual descale voids most manufacturer warranties. The annual flush costs less than the heat exchanger it protects; the table below has the number. Error codes or cold-water sandwiches? A diagnostic visit names the problem fast. Pair the unit with whole-house filtration and scale stops being your problem at all.