Established in the heart of Brooklyn in 1992, Apple Core has been the leader of outdoor lobby panels and indoor apartment units. We specialize in stainless steel and brass custom lobby panels. Our custom lobby panels and units are vandal and weather resistant. Our equipment is made from the highest quality of stainless steel and brass on the market. Our systems range from 1 family homes to multi-dwelling units. Anyone can install our systems from home owners to electricians to landlords.