Our Story

Dedicated to your home comfort since 1970. The roots of McCarthy’s One Hour couldn’t be more humble. In fact, John McCarthy Sr. was let go in 1970 from his first job with a small air conditioner repair company – for refusing to overcharge a customer.

What would McCarthy do next? He turned to his wife Mary Kay and his visiting mother-in-law for a suggestion: “You’re a smart guy John,” his mother-in-law said. “Why not start your own business?”

John took the advice. Armed with only $200 in working capital and an old rusty truck he purchased from his banker, he set out to serve the heating, air conditioning and overall home comfort needs of Omaha residents.

Success would be a challenge, but John wasn’t alone in his efforts. Mary Kay was with him every step of the way, taking phone calls and setting appointments to keep her husband busy. Together, they worked long hours, paid careful attention to details, and followed a simple motto that remains a focal point of the company today: “Urgency and accountability: every detail is important, and it’s everybody’s job to get it right.”

Their dedication and hard work paid off. After 37 years of growth and several company acquisitions, McCarthy’s One Hour is the leading heating and cooling company in the Omaha area. John McCarthy Sr. still plays an integral role in the company’s management and direction. Mary Kay is no longer the manager of the call center, however is still a important part of the company! The company is made up of over 35 employees all in the Omaha service area.