Sound of Joy

Johnstone Supply is a wholesale distributor serving professional HVACR contractors. Johnstone has the largest selection of equipment and genuine OEM parts in the industry. We have replacements for nearly every major brand and an extensive cross reference that makes sourcing hard-to-find parts easy. Johnstone Supply: Making it Easier to do Business.

Created in 1999, SafeT Systems is a provider of a variety of security systems to area homes and businesses. Based in Knoxville, Tenn., it provides security through a host of devices, such as electronic products and systems, including fire alarms, surveillance cameras, access control, electronic locks, custom home theater and audio-video systems. One of the largest electronic systems firms, the company carters to the residential sector with media wiring systems such as lighting systems, house audio, home theaters, etc. The commercial division s services include fire alarms, fire suppression, surveillance cameras, closed circuit television systems, communications systems and security systems. SafeT Systems has associations with National Fire Protection Association (NFPA), Tennessee Burglar & Fire Alarm Association (TBFAA), Homebuilders Association of Greater Knoxville, Better Business Bureau (BBB) and many more organizations.