On The Spot Air have served thousands of homes just like yours from roof-top systems to ground units in the valley for over 15 years. Like you, we understand how valuable customer services,affordability and efficiency response is to our clients.  We have been working in Air Conditioning, Heating and Air Purification for over 15 years. This company was started to ensure that only the best customer service and products go out to our fellow residents of the Southern Nevada.