Description Bel-Aire Mechanical, an Arizona corporation, was formed in September of 1986. We are a full service Mechanical HVAC and Plumbing Contractor. Bel-Aire Mechanical is the largest Mechanical/Plumbing Contractor in the State of Arizona. We take pride in constructing quality projects on time and within budget while exceeding our client’s expectations. Our diversity makes no project either too small or too large for our experienced teams to execute the work in an open and trusting atmosphere. Due to our extensive amount of experience, we thoroughly understand the stringent requirements and rigorous standards that must be absolutely adhered to for the highest levels of quality and acceptance necessary for any project.