What is involved in a whole-home humidifier installation and maintenance? Installing a humidifier is generally an easy job if you are also replacing your furnace. But you can also have a humidifier fitted to your existing heating and cooling system. Periodic cleaning and draining of the reservoir is strongly recommended to maintain the system. Freschi Service Experts can provide maintenance on the humidifier as needed, or proactively as part of our PLUS Maintenance Agreement. Call 925-384-1303 for more information about humidifier maintenance or for a free estimate on a new humidification system.