American Standard Companies
American Standard Companies was a United States-based diversified manufacturer of plumbing fixtures, HVAC systems, and commercial-vehicle control equipment that was separated into successor businesses between 2007 and 2008.
Last updated August 26, 2026
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Overview
American Standard Companies was a diversified American industrial manufacturer whose principal activities were plumbing fixtures, heating, ventilation and air-conditioning equipment, and automotive or commercial-vehicle control systems. Its corporate lineage began in 1929, when the American Radiator Company, founded in 1892, merged with the Standard Sanitary Manufacturing Company, founded in 1875. The resulting enterprise was named American Radiator and Standard Sanitary Corporation and combined two established building-equipment businesses: one associated primarily with radiators and heating equipment and the other with plumbing and sanitary products. The group expanded beyond its original product base through acquisitions and portfolio changes. In 1929 it acquired Kewanee Boiler Company, retaining that business until the early 1970s. In 1968 it purchased earthmoving and mining equipment activities from the Westinghouse Air Brake Company, although those assets were later divested in 1984. The same year, American Standard acquired Trane, an HVAC manufacturer that subsequently became central to the group’s identity and ultimately provided the name for the company’s post-separation successor. The company simplified its name to American Standard in 1967, reflecting the broader use of that name across both its plumbing and heating operations. In 1999 it acquired control of the United Kingdom-based plumbing-fixture company Armitage Shanks and the Italian sanitaryware company Ceramica Dolomite from Blue Circle Industries. These transactions strengthened its international plumbing portfolio and added established regional brands to the group. By the 2000s, American Standard Companies operated three major divisions with materially different customers and industry exposures. The plumbing division supplied bathroom fixtures and related products for residential, commercial, and institutional construction. The Trane business served building owners, contractors, and industrial customers with heating and air-conditioning systems. The automotive division supplied control and braking-related systems to commercial-vehicle manufacturers and other transportation-equipment customers. This structure gave the company international scale but also linked its performance to construction, building investment, housing activity, and vehicle production. On February 1, 2007, the company announced a plan to separate its three divisions. The automotive business was spun off as WABCO Vehicle Control Systems. The plumbing-fixtures business was sold to Bain Capital for $1.745 billion, after which its regional operations were reorganized under different ownership arrangements. In North America, the business operated as American Standard Brands, while other activities were associated with Ideal Standard or transferred to later owners, including Sun Capital and Lixil Group. The remaining HVAC business adopted the Trane name. Ingersoll Rand agreed to acquire Trane in December 2007, and the transaction closed on June 5, 2008. These transactions ended American Standard Companies as an independent diversified public company. The American Standard name continued in plumbing products through successor ownership, while Trane and WABCO continued as separate business identities. The historical corporation should therefore be distinguished from American Standard Brands, Trane Technologies, WABCO, and other successor companies that later carried parts of its businesses or brand portfolio.
History
American Standard Companies originated in the consolidation of two established American manufacturers. In 1929, the American Radiator Company and the Standard Sanitary Manufacturing Company merged to form the American Radiator and Standard Sanitary Corporation. The former had roots in heating equipment, while the latter had roots in plumbing and sanitary products. The combination created a substantial building-products enterprise with complementary activities in heating and plumbing. The company also acquired Kewanee Boiler Company in 1929 and retained it until the early 1970s. The group’s name and portfolio changed over the following decades. Although the plumbing business continued to use the Standard label for many years, the corporation adopted the name American Standard Corporation in 1967. The American Standard name was then used across both its heating and plumbing activities. In 1968, the company expanded into transportation and heavy equipment by acquiring earthmoving and mining product activities from the Westinghouse Air Brake Company. Those assets were later divested in 1984. A major strategic development occurred in 1984, when the group acquired Trane, a manufacturer of heating and air-conditioning equipment. Trane eventually became the central identity of the company’s remaining business after the later separation. The group also expanded its plumbing operations internationally. In 1999, it purchased control of Armitage Shanks in the United Kingdom and Ceramica Dolomite in Italy from Blue Circle Industries. These companies added regional plumbing and sanitaryware capabilities to American Standard’s portfolio. During its final phase, the company was organized around three principal divisions: plumbing fixtures, HVAC systems, and automotive or commercial-vehicle control equipment. The plumbing division served residential, commercial, and institutional construction. The HVAC division, centered on Trane, supplied systems for building heating and air conditioning. The automotive division supplied control systems and related equipment to commercial-vehicle manufacturers. The businesses were commercially distinct, and their separation became the basis of the company’s final restructuring. On February 1, 2007, American Standard Companies announced that it would break up the group. The automotive division was spun off as WABCO Vehicle Control Systems. The plumbing-fixtures division was sold to Bain Capital for $1.745 billion. Subsequent ownership arrangements divided or transferred regional operations: the North American and Asian businesses were sold to Sun Capital and Lixil Group respectively, while European and Latin American activities continued under Ideal Standard. The transaction also allowed the North American plumbing business to use the American Standard name through American Standard Brands. The remaining company adopted the Trane name. Ingersoll Rand announced an agreement to acquire Trane on December 17, 2007, and completed the acquisition on June 5, 2008. Ingersoll Rand later changed its corporate name to Trane Technologies. The former American Standard Companies entity consequently ceased to exist as an independent diversified operating company. Its legacy survives through successor businesses and brands, but those successors should not be treated as the same corporate entity.
- 2008
Trane acquisition completed
[1]Ingersoll Rand completed its acquisition of Trane on June 5, ending the independent corporate existence of American Standard Companies.
- 2007
Three-way corporate separation announced
[1]The automotive, plumbing, and HVAC divisions were placed on separate corporate paths through a spin-off, sale, and renaming of the remaining business.
- 1999
International plumbing expansion
[1]The company acquired control of Armitage Shanks and Ceramica Dolomite from Blue Circle Industries.
- 1984
Acquisition of Trane
[1]American Standard acquired HVAC manufacturer Trane, which later became the identity of the company’s remaining business.
- 1968
Expansion into earthmoving and mining equipment
[1]The group acquired earthmoving and mining product activities from the Westinghouse Air Brake Company.
- 1967
Name simplified to American Standard
[1]The corporation adopted the American Standard name, which was subsequently used across its plumbing and heating activities.
- 1929
Formation through merger
[1]American Radiator Company and Standard Sanitary Manufacturing Company merged to create American Radiator and Standard Sanitary Corporation.
- 1929
Kewanee Boiler acquisition
[1]The newly formed group acquired Kewanee Boiler Company and retained the business until the early 1970s.
Products and positioning
A diversified industrial manufacturer serving building-equipment, plumbing, HVAC, and commercial-vehicle markets.
Building equipment
Plumbing fixtures and sanitaryware
The plumbing division produced bathroom fixtures, sanitaryware, plumbing products, and related installation equipment for residential, commercial, and institutional buildings. Its portfolio included businesses operating under established regional names such as Standard Sanitary, Armitage Shanks, and Ceramica Dolomite. After the 2007 sale, the North American business continued under the American Standard Brands name, while other regional operations followed separate ownership and branding arrangements.
Heating, ventilation and air conditioning
Trane HVAC systems
The Trane division supplied heating and air-conditioning equipment and systems for buildings and related commercial applications. It became the principal identity of the business left after the automotive and plumbing divisions were separated. The remaining Trane-centered company was acquired by Ingersoll Rand in 2008 and later became part of the corporate lineage of Trane Technologies.
Automotive components
Commercial-vehicle control systems
The automotive division supplied control, braking, and related systems primarily for trucks, buses, and other commercial vehicles. It served vehicle manufacturers and transportation-equipment customers rather than selling complete vehicles to consumers. In the 2007 restructuring, the division was spun off as WABCO Vehicle Control Systems.
Boilers and heating equipment · 1929
Kewanee boilers
Kewanee Boiler Company represented an early expansion of the group’s heating-equipment portfolio. American Standard acquired the business in 1929 and retained it until the early 1970s.
Heavy equipment · 1968
Earthmoving and mining equipment
The company briefly held earthmoving and mining equipment activities acquired from the Westinghouse Air Brake Company in 1968. These operations were later divested in 1984 and were not part of the group’s final business structure.
Brand decisions
2007
Separate the three operating divisionsStrategyBackground
American Standard Companies operated businesses in plumbing, HVAC, and commercial-vehicle controls, each with different customers, markets, and capital requirements.
Action taken
The company announced that the automotive division would be spun off, the plumbing division sold to Bain Capital, and the remaining business renamed Trane.
Aftermath
The restructuring ended the company’s diversified public-company structure. WABCO became independent, the plumbing business continued through successor owners including American Standard Brands, and the remaining Trane business was acquired by Ingersoll Rand.
2007
Sale of plumbing-fixtures division to Bain CapitalM&ABackground
The plumbing division was one of the company’s three principal operating units and included established North American, European, and Asian businesses.
Action taken
American Standard Companies sold the division to Bain Capital for $1.745 billion.
Aftermath
The regional businesses were subsequently reorganized under different ownership arrangements, with the American Standard name continuing in North American plumbing operations.
Sale price. $1.745 billion (2007)
2007
Agreement to acquire TraneM&ABackground
After the automotive and plumbing businesses were separated, the remaining company was centered on the Trane HVAC division.
Action taken
Ingersoll Rand announced an agreement to acquire Trane on December 17, 2007.
Aftermath
The transaction closed on June 5, 2008, and the former American Standard Companies business became part of Ingersoll Rand’s operations.
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