Vacant house burns in Mastic Friday, December 26, 2014. The Mastic Fire Dept. responded to this house fire at 151 Clinton Ave. at approx.. 1:40 a.m. Firefighters encountered a heavy fire condition upon their arrival and had the blaze under control in just under thirty minutes. The Brookhaven F.D. and Mastic Beach F.D.'s also responded as well as the SCPD 7th Pct., and SCPD arson investigators. The house was completely gutted.