Whole-house water softeners treat all faucets, showers and appliances. These systems eliminate the accumulation of the scale all over the plumbing and enhance the quality of water in the house. Prices vary based on system capacity, brand, and type. The water softener cost will vary, on average, between $ 800 and $ 3,000, plus additional expenses for professional installation. Although the initial cost may be higher than the small point-of-use systems, the overall advantages are high in the long-term. Homeowners have longer life of the appliances, less energy expenses and less maintenance in the long run. In addition, soft water in the house enhances laundry, dishwashing, and personal care. All these factors make investing in a whole-house water softener to be very efficient when it comes to deciding on the cost-effectiveness of such a system in terms of convenience and financial benefits during the lifetime of the system.