Meet team Balkan! Balkan Sewer And Water Main is the largest family owned sewer and water main company in New York City. We are licensed, bonded, and insured. Experience the ‘Balkan Difference‘. Learn more about Balkan company history, view our checklist & comparison, read the President’s message, our FAQ, and check for employment opportunities. For all your sub-surface plumbing needs in Manhattan, Brooklyn, Queens, or the Bronx, contact Balkan Sewer And Water Main today. Get our exclusive Ten Year Unconditional Guarantee*.