Cornerstone Inc is located in Longmont, United States on 335 1st Ave. Cornerstone Inc is rated 3 out of 5 in the category general contractorbathroom remodelercustom home builderkitchen remodeler in United States. Located in the heart of downtown Wayne, PA, Cornerstone is a husband and wife chef-owned restaurant and artisanal market. Well-known for their oyster and cheese program as well as a memorable guest experience, this 48-seat bistro features an award winning wine and craft cocktail program focused on genuine hospitality and designed to complement seasonal menus.g lunch daily and dinner Tuesday through Saturday, as well as brunch on weekends and a daily Oyster Happy Hour from 4-6pm, Cornerstone features 4 distinct dining areas. While the Bar and Lounge encourage walk-ins, reservations are accepted at the intimate, open kitchen Chef’s Counter and in the cozy Dining Room. Additionally, the Artisanal Market and Specialty Wine Shop feature thoughtfully-selected goods, accoutrements, and gift baskets as well as over 300 bottles of wine hand-picked by our Wine Director and Sommelier… be sure to ask them about the perfect pairings! Winner of Wine Spectator Award of Excellence~