Johnstone Supply Store in PROVIDENCE webmaster1 May 15, 2021 Categories: HVAC WholesalersAddress 50 NIANTIC AVENUEPROVIDENCE, RI 2907USAContact Phone: (401) 946-9444Contact Store Review Store Your Name * Your Email * ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ Your Review *