Frisco is one of our highest-demand markets for tankless water heater service — the city's large, newer homes commonly have Rinnai, Navien, Rheem, or A.O. Smith tankless units installed during construction, and those units need annual descaling to perform at rated efficiency in North Texas's moderately hard water.
NTMWD water at 150–180 mg/L deposits calcium carbonate on the heat exchanger's internal surfaces over time. Without annual descaling, that scale reduces heat transfer efficiency, triggers error codes, and eventually requires heat exchanger replacement — a much larger cost than the maintenance that would have prevented it. We install scale filters, perform descaling, and service tankless units of any brand and age.
