I called Tropical asking for a service call to fix my furnace humidifier, which I said probably needed replacing, as I had replaced the solenoid and it still wouldn't work. I agreed to the $150 fee for the service call assuming at the cost that the technician would be able to fix or replace the unit, with parts costs being extra of course. The technician arrived as scheduled and spent ten minutes inspecting the humidifier only to tell me that it needed to be replaced, a fact that I told them when I initially called. The technician then took my Visa number and told me that he would send me a quote for the cost of a new unit plus installation. I received the quote as promised a few days later for $850 plus tax. The total cost, including the "service call" was over $1000! So I went on Amazon and bought a new Lennox (Aprilaire) humidifier for $200 and installed it myself. I hope that this review will help others and I strongly recommend doing your homework and calling several other companies before committing to any fees. Finally, I asked to speak to management about what I felt was an excessive fee for a 15 minute service call and was promised a call back, but that did not happen.