Mowlem

Mowlem
Company type	Public limited company
Industry	Construction, civil engineering
Founded	1822
Founder	John Mowlem
Defunct	2006
Fate	Acquired by Carillion in 2005; brand retired; trademark acquired by BHM Construction International UK Ltd in 2024 and resumed trading
Headquarters	London, United Kingdom
Area served	United Kingdom, Australia, Asia
Key people	George Burt, Sir John Mowlem Burt, Edgar Beck (chairman and president 1961–2000)
Products	Construction services, civil engineering projects, private residential development (until 1994)
Number of employees	Approximately 300 job cuts in mid-2000s restructuring (exact number unknown)
Parent	Carillion (from 2005 to administration)

Mowlem ranked among the United Kingdom's foremost construction and civil engineering firms.

Established as John Mowlem and Co. by John Mowlem, the company initially provided services to numerous local government bodies within London. Throughout the nineteenth century, it grew steadily, undertaking distinguished projects and securing its inaugural Royal Warrant in 1902. Although briefly incorporated in 1903, it soon reverted to a partnership model managed by successive generations of the Mowlem and Burt families, including figures such as George Burt and Sir John Mowlem Burt. The firm transitioned to a public limited company by listing on the London Stock Exchange in 1924.

During the Second World War, Mowlem obtained numerous government contracts, notably contributing to the construction of Mulberry harbour units. Following the war, it expanded its regional presence through strategic acquisitions, including Rattee and Kett (1926), E. Thomas (1965), Ernest Ireland (1977), and McTay Engineering along with its shipbuilding division in the late 1970s. In 1971, it acquired a shareholding in Australian firm Barclay Brothers, eventually securing full ownership and broadening operations across Australia and Asia.

The company ventured into private residential development in 1986 by purchasing Unit Construction, achieving annual sales of approximately 1,200 homes before selling this segment to competitor Beazer in 1994 following losses exceeding £180 million during the early 1990s recession. Additionally, it divested scaffolding specialist SGB Group in the late 1990s.

A major contract was secured in 1984 through a joint venture with GEC to deliver the Docklands Light Railway (DLR), a project that proved financially rewarding over twenty years. Mowlem also disposed of HSS Hire in 1993.

Facing financial difficulties in the mid-2000s—with four profit warnings issued in 2005 and losses totaling £73.4 million—the company restructured its construction operations into three sectors: Mowlem Building, Infrastructure, and Engineering, resulting in approximately 300 job cuts. Noteworthy project setbacks included delays on both the Spinnaker Tower and Bath Spa developments.

In December 2005, competitor Carillion acquired Mowlem for £291 million. This acquisition combined two companies active in private finance initiative (PFI) ventures but introduced operational complexities for Carillion. Following integration, the Mowlem brand was retired.

In 2024, BHM Construction International UK Ltd purchased the Mowlem trademark from administrators managing Carillion’s assets and resumed trading under the historic name.

History

Founded in London by stonemason John Mowlem in 1822, John Mowlem and Co originally specialized in paving and road construction for local authorities. By the late nineteenth century, it undertook high-profile projects such as preparatory work at Westminster Abbey for Queen Victoria’s Diamond Jubilee in 1887. The company was awarded Royal Warrants by the Prince of Wales in 1902 and received further warrants in 1910 and 1920.

Managed by successive generations of the Mowlem and Burt families—including civil engineer George Mowlem Burt—the firm completed significant public works like Admiralty Arch and the Port of London Authority Building. After a brief incorporation phase in 1903, it reverted to private status before going public on the London Stock Exchange in 1924.

During World War II, Mowlem secured government contracts worth £29 million, including building Mulberry harbour units, Royal Ordnance Factory Swynnerton, tunnels, and airstrips.

The company grew regionally by acquiring firms such as Rattee and Kett (1926), E. Thomas (1965), Ernest Ireland (1977), and McTay Engineering with its shipbuilding arm (late 1970s), establishing a nationwide contracting presence.

International expansion commenced with a 40% investment in Australian contractor Barclay Brothers in 1971, eventually gaining full control under the Barclay Mowlem brand across Australia and Asia. The parent company re-registered as John Mowlem and Co. plc in 1982.

In 1986, acquisitions of scaffolding firm SGB Group and Unit Construction extended its reach into scaffolding services and private homebuilding; however, recession-related losses during the early 1990s prompted sale of its housing division to Beazer in 1994 and disposal of SGB Group by the late 1990s.

A landmark contract awarded in 1984 involved delivering London’s automated Docklands Light Railway (DLR) through a joint venture with GEC, generating substantial revenues over two decades. The company divested HSS Hire in 1993.

Financial challenges peaked mid-2000s with multiple profit warnings and significant losses leading to restructuring into three divisions—Building, Infrastructure, Engineering—and workforce reductions.

Carillion acquired Mowlem for £291 million in December 2005; both companies were engaged in PFI projects but integration proved difficult for Carillion. Subsequently, the Mowlem name was discontinued.

In 2024, BHM Construction International UK Ltd acquired rights to the Mowlem trademark from Carillion’s administrators and recommenced operations under this historic brand.

Major projects

Among the prominent undertakings by Mowlem were:

Completion of Billingsgate Fish Market in 1874
Construction of Clerkenwell Road finalized in 1878
Completion of the Smithfield Fruit Market in 1882
Building of the Imperial Institute finished in 1887
Opening of the Woolwich Ferry terminals in 1889
Completion of Liverpool Street station along with the Great Eastern Hotel in 1891
Erection of the Institution of Civil Engineers building completed in 1911
Finalization of the Admiralty Arch in 1912
Completion of the Port of London Authority Building in 1919
Construction of Bush House completed in 1923
Completion of the London Post Office Railway in 1927
Finalization of Piccadilly Circus tube station in 1928
Completion of Battersea Power Station in 1933
Production of Mulberry harbour components finished in 1943
Rebuilding work at Buckingham Palace in 1943 following wartime bombing damage
Reconstruction of the House of Commons after bomb damage, completed in 1947
Completion of the William Girling Reservoir in 1951
Construction of Hunterston A nuclear power station finalized in 1957
Completion of the Strand underpass in 1962
Building of Millbank Tower, finished in 1963
Restoration work on 10 Downing Street completed in 1963
Development of a marine terminal for a joint venture between Esso and Pappas Petroleum at Thessaloniki, completed in 1965
Installation of a new altar at Westminster Abbey in 1966
Completion of London Bridge in 1972
Finalization of the Natwest Tower in 1979
Construction of Mount Pleasant Airfield, finished in 1986
Completion of the Docklands Light Railway in 1987
Development and completion of the Manchester Metrolink system in 1991
Refurbishment work on Thames House, completed in 1994
Restoration and refurbishment of the Albert Memorial, completed by 1998
Expansion project for James Cook University Hospital, finished in 2003
Construction and completion of the Spinnaker Tower in 2005
Development and completion of the South Stand at Twickenham Stadium in 2006
Completion of the Dublin Port Tunnel also achieved in 2006

Additionally, Mowlem was responsible for developing and owning London City Airport, which was completed in 1986.

Mowlem

History

Major projects

See also

Sources