I have used Amazing for furnace cleaning, air conditioning cleaning, and recent whole house humidifier installation. Each time they were prompt and accommodating in scheduling appointments. Every time the serviceman, Joel, was very thorough and courteous. He offered money saving suggestions for making my furnace and central air conditioner run more efficiently and last longer. He explained the maintenance required to make my humidifier work properly. Today I purchased a carbon monoxide detector through WBIG. I am confident that I will be satisfied again. In the past my cousin serviced my HVAC system at my old house. Since I moved further to Aurora I am happy that WBIG has found me a competent company to replace my cousin in my new home. They have also kept my costs for those services inexpensive!