Heating & Air Conditioning Las Vegas, Nevada - For over 20 years, the owners of Mr. Cool Heating & Air Conditioning offered Las Vegas residents and businesses the best quality products and services in the industry. Understanding that air conditioning repairs and replacements can be expensive, the experts at Mr. Cool are there to provide every client with the right, most cost-effective solution. Mr. Cool Heating & Air Conditioning professionals can repair and install any brand. No job is too big or too small.