Johnson Supply 13255-B Murphy Road Stafford TX 77477 was founded in 1953 and has grown to become one of the leading HVACR wholesale supply houses in Texas and Louisiana. AREAS SERVED: Johnson Supply operates 24 HVACR supply houses throughout Texas and Louisiana. BRANDS CARRIED: Johnson Supply carries name brand HVAC supplies fromADP Allied APCO Armstong Air Bacharach Bard Bell & Gossett Bohn Bosch Bristol Broan Century Chandler Cooper Copeland Ducane DuroDyne Dwyer EMI Erie Fieldpiece Fluke Friedrich Glasfoss Hart & Cooley Honeywell ICM Johnson Controls Harris Klein Lau Lennox Inficon Little Giant MagicAire Magic-Pak Malco Mars Mitsubishi Ninco Nu-Calgon Mueller Rectorseal Reznor Supco Sporlan Tecumseh White Rodgers and many more.