After having manufactured equipment in Pittsburgh for a number of years, he began to construct facilities and plants east of the city where homes for his employees were built.

In 1889, the air brake manufacturing facility was moved to Wilmerding, Pennsylvania, and the company's general office building was built there in 1890.

[7] An entity known as "LeTourneau-Westinghouse" sold a range of innovative products, including scrapers, cranes and bulldozers until 1967, when it shortened its name to "Wabco".

In 1889, the Air Brake plant was moved to Wilmerding, Pennsylvania, a small farming town located 14 miles (23 km) outside of Pittsburgh.

Socialism was strong in Wilmerding, and it was thought to be “The Ideal Town” for the company because of its location immediately adjacent to the Pennsylvania Railroad and its mainly blue-collar inhabitants.

In the 1890s, the Air Brake Company employed 3,000 citizens from the surrounding Pittsburgh area, but the bulk of its workforce consisted of the firm's employees lived in the vicinity of Wilmerding.

By 1905, over two million freight, passenger, mail, baggage, and express cars and 89,000 locomotives were equipped with Westinghouse Air Brakes.

This was not surprising, given that Wilmerding was a one-industry town, and thus unprofitable periods translated directly into a lower standard of living in the area.

Additionally, WA&B catered to its workers who lost their ability to work, by providing an early form of a disability insurance plan.

[15] The only performing segment of its construction and mining division, the Haulpak truck range, were re-branded by Dresser and continued to trade.

[16] The other, now known as WABCO Holdings, designs and manufactures control systems for commercial road vehicles, including air brakes, and is headquartered in Bern, Switzerland.

The United States Department of Justice stipulated that WABCO's North American heavy-vehicle steering components business (chiefly R.H. Sheppard Company, as acquired in 2017), had to be sold in order to preserve competition in this field.