Excel Mechanical, Inc. was established in Tucson, AZ in 1986. We started off with only Heating and Cooling. The Plumbing divi ... sion was added in 2000, and now in 2015 we are please to add GreenSeal - a DuctSealing product by AeroSeal. Our Vision To be Southern Arizona’s #1 choice for Heating, Air Conditioning, Plumbing, Solar and More, through a commitment to quality, respect, ethics, and our community. Our Mission To provide a long-lasting relationship with the commercial and residential communities through quality Sales, Service and Installation, utilizing our highly trained employees and up-to-date technologies. We “EXCEL” for You! read more