History of National


National’s Building Early 1920's

The accounts of National Building Services & Maintenance, Inc. cover a wide spectrum of businesses and industries including but not limited to: office buildings, medical facilities and clinics, industrial plants, oil refineries, retail centers, financial institutions, and computer facilities. National will also customize services to accommodate the needs of the customer.

We do not forget our humble roots and honor those pioneers by continuing their legacy of providing quality service and proudly serving Southeast Louisiana for over 100 years.

LOCALLY OWNED & OPERATED SINCE 1910History of National Building

In 1910, two immigrants from the Ukraine, Daniel Kurica and John Zazulak settled in New Orleans and saw a need for a window cleaning company. They were so proud of their new nationality that they named their new company National Window Cleaning. They even painted all of their vehicles and equipment red, white, and blue. Their company survived the Great Depression and two World Wars.

With the help of their two sons, Philip Kurica and John Zazulak Jr. the company grew and prospered. National Window Cleaning began to offer more services in addition to window cleaning, so Philip and John Jr. decided to form National Building Services and Maintenance, Inc in 1962 with emphasis on commercial janitorial service. In 1973, John Zazulak decided to retire and sold his interest in National to Walter Kattengell Jr. In 1986, National Window Cleaning merged its operation completely into National Building Services and that makes National the oldest continuing operating cleaning service in the South. Through all the years of operation, there has only been four presidents of National. Daniel Kurica, Philip Kurica, Water Kattengell and upon Mr. Kattengells death in 2015, his son Donald Kattengell became president.

National is the only cleaning service where the top two offices have more than 90 years in the cleaning industry, all with National. National also has workers who have been with the company 20, 30 and even 40 years.

It is this commitment that sets National apart from the other cleaning service companies. We pride ourselves on being large enough to handle any cleaning need and small enough to know you! Just like in 1910, National is still locally family owned and operated.


1940's -1980's 1024 Bienville


National American Bank Building

Untangling the Flag