general contractor, commercial construction, commercial build-out, tenant improvements, industrial construction, construction management, building work, tenant build-outs, office construction, new construction, office buildings, petroleum c-stores, car wash construction, c-store, warehouse construction, ada compliance and construction, convenience store construction, convenience stores, chicago, illinois, school building construction, maintenance, design build construction, classroom renovation work, receiving and loading dock expansions and repairs, agc contractor, bagc contractor, site feasibility studies, project management, demolition and renovation, build outs, build-out