Tankless water heater replacement in Lotus typically ranges from $2,500 to $4,500, depending on the unit size, installation complexity, and any necessary electrical or gas line modifications. The higher upfront cost compared to traditional tanks is offset by energy savings of 20-30% annually.California’s permit requirements and labor costs affect the total investment, but most homeowners recover the difference within 3-5 years through lower energy bills. We provide upfront estimates with no hidden fees, so you know exactly what to expect before we start work.