OikoSystems,LLC Welcome to OikoSystems, LLC! We are a family of contractors; Greek contractors to be exact! Our name comes from the Greek word “Οίκος” which means dwelling or home. It’s pronounced ee-kos. We want your “Οίκος”to be a place of peace, joy and just the way you want it! Call OikoSystems home improvement today (571) 451-3792!