United Infrastructure
United Infrastructure is a United Kingdom construction and infrastructure-services company formed from the combination of Bullock Construction and United House's contracting business.
Last updated August 26, 2026
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Overview
United Infrastructure is a United Kingdom construction and infrastructure-services company whose immediate corporate predecessor was United Living Group. The business combines capabilities in construction, utilities, housing refurbishment, property maintenance, and related infrastructure work. Its history brings together two separate operating lineages: United House and Bullock Construction. The United House lineage began in 1964, when Geoffrey Granter founded Harp Heating. The original business installed central-heating systems in occupied council housing, and later broadened into internal refurbishment work for the Greater London Council. After Jeffrey Adams joined the company in 1981 and became Granter's joint owner, the business adopted the United House name and expanded into housebuilding and housing refurbishment. During the 1990s, it secured work associated with the Private Finance Initiative and the Decent Homes Programme, reflecting the company's growing role in public-sector housing improvement. United House also developed a property-development arm. Modern City Living was established in 1990 and was renamed United House Developments in 2008. That development operation was separated from the construction business during a 2014 restructuring. United House's roots were supported by outside investment: Lloyds Development Capital invested in the management buyout of Bullock Construction in 2008 and provided financial backing to United House in 2010. These investments helped both businesses expand before their eventual combination. On 16 September 2014, United House's contracting division, United House Ltd, was merged with Bullock Construction. Both businesses had links to Lloyds Development Capital. The combined construction company was named United Living Group, and the United Living brand was formally launched on 1 April 2015. Ian Burnett, previously Bullock Construction's chief executive, became group chief executive. United House Developments remained a separate development company under the leadership of Jeffrey Adams and Rick de Blaby. In 2019, Fastflow Group acquired United Living, bringing the construction operation together with Fastflow's utilities and property-maintenance activities. Neil Armstrong became chief executive and chairman of the enlarged group. The combination broadened the company's infrastructure remit beyond traditional building and housing work, particularly into utilities and maintenance services. The company subsequently traded under the United Living name before the United Infrastructure identity became associated with the business. Apollo Global Management completed its purchase of the company in 2023. Publicly reported financial information around January 2023 indicated that the business had recorded pre-tax losses of approximately £21 million for a second consecutive year, alongside reported revenue of approximately £437 million. Those figures are historical and should not be treated as current performance data. The company has also pursued expansion in technical infrastructure. In December 2025, it was reported that United Infrastructure had agreed to acquire John Wood Group's United Kingdom Transmission & Distribution business for £57.5 million. The proposed transaction would add engineering and installation capabilities in overhead-line and underground-cable projects to the group's existing infrastructure portfolio. Because the available reference describes the transaction as an agreement, its final completion status is not established here. Overall, United Infrastructure is best understood as a privately owned UK infrastructure-services platform formed through successive mergers, acquisitions, and business reorganisations rather than as a consumer-facing product brand.
History
United Infrastructure developed from a sequence of UK construction and infrastructure businesses. Its oldest identified predecessor was Harp Heating, founded by Geoffrey Granter in 1964 to install central heating in occupied council housing. The company later expanded into internal refurbishment work for the Greater London Council. Following Jeffrey Adams's arrival in 1981 as Granter's business partner, the company became United House and moved further into housebuilding and housing refurbishment. United House participated in public-sector housing programmes during the 1990s, including work connected with the Private Finance Initiative and the Decent Homes Programme. It also created Modern City Living in 1990 as a development division; this was renamed United House Developments in 2008. Granter retired from the business in 2008, while Steven Halbert joined the board as chairman. In the same period, Lloyds Development Capital invested in Bullock Construction through a management buyout and took a minority position supporting United House's expansion. RBS also provided bank financing to United House. A major reorganisation occurred in September 2014. United House's contracting division, United House Ltd, was combined with Bullock Construction, another LDC-backed company. The resulting construction company was named United Living Group, with Ian Burnett, formerly Bullock's chief executive, appointed group chief executive. The United Living brand launched on 1 April 2015. United House Developments was separated as a development business led by Jeffrey Adams and Rick de Blaby. Fastflow Group acquired United Living in 2019. The transaction brought together construction, utilities, and property-maintenance operations and placed the enlarged group under Neil Armstrong as chief executive and chairman. Financial reporting referenced in the company history stated that the business recorded pre-tax losses of about £21 million for a second consecutive year, with revenue of about £437 million, in reporting available in January 2023. These historical figures are included for context only and are not a current financial assessment. Apollo Global Management completed its purchase of the company in 2023. The business subsequently became associated with the United Infrastructure name, reflecting a broader infrastructure orientation. In December 2025, the company was reported to have agreed to acquire John Wood Group's UK Transmission & Distribution business for £57.5 million. The proposed acquisition was intended to add engineering and installation expertise in overhead transmission lines and underground cables. The available reference does not establish whether that transaction was ultimately completed.
- 2025
Transmission and distribution acquisition agreement reported
[1]United Infrastructure was reported to have agreed to acquire John Wood Group's UK Transmission & Distribution business.
- 2023
Apollo completed acquisition
[1]Apollo Global Management completed the purchase of the company.
- 2019
Acquired by Fastflow Group
[1]Fastflow Group acquired United Living and combined its construction, utilities, and property-maintenance businesses.
- 2015
United Living Group brand launched
[1]The new brand formally launched on 1 April.
- 2014
United House and Bullock Construction combined
[1]The contracting businesses merged during a United House Group restructuring, creating United Living Group.
- 2008
Modern City Living rebranded
[1]The development division was renamed United House Developments; Geoffrey Granter also retired from the business.
- 1990
Modern City Living established
[1]United House created a development division that later became United House Developments.
- 1981
Harp Heating became United House
[1]After Jeffrey Adams joined Geoffrey Granter as joint owner, the business adopted the United House name and expanded into housebuilding and refurbishment.
- 1964
Harp Heating founded
[1]Geoffrey Granter founded Harp Heating to install central heating in occupied council housing.
Products and positioning
A UK infrastructure and construction-services platform serving housing, utilities, property-maintenance, and technical transmission-and-distribution markets.
Construction
Construction services
The company's core construction activities derive from United House and Bullock Construction. They include building and refurbishment work, with a particular historical connection to housing and public-sector improvement programmes.
Housing services · 1964
Housing refurbishment
Housing refurbishment originated in the occupied-council-housing work of Harp Heating and later expanded through United House. The activity includes improvement and maintenance-oriented work associated with residential properties.
Utilities · 2019
Utilities infrastructure
Following the Fastflow acquisition, the group incorporated utilities capabilities alongside construction and property maintenance. The available sources identify utilities as a principal part of the combined operating platform.
Infrastructure engineering · 2025
Transmission and distribution engineering
The reported 2025 agreement to acquire John Wood Group's UK Transmission & Distribution business was intended to add engineering and installation work for overhead lines and underground cables. Completion is not confirmed in the available material.
Brand decisions
2025
Agree to acquire UK Transmission & Distribution businessM&ABackground
United Infrastructure sought to expand its technical infrastructure capabilities in electricity transmission and distribution.
Action taken
The company agreed to acquire John Wood Group's UK Transmission & Distribution business for £57.5 million.
Aftermath
The proposed deal would add overhead-line and underground-cable engineering and installation capabilities; completion is not confirmed in the available reference.
Purchase price. £57.5 million (December 2025 announced agreement)
2023
Apollo acquisitionM&ABackground
The company changed ownership after operating under the United Living identity and following its combination with Fastflow.
Action taken
Apollo Global Management completed the purchase of the company.
Aftermath
The business became associated with the United Infrastructure name and continued as a private infrastructure-services company.
2019
Acquire United Living through Fastflow GroupM&ABackground
Fastflow Group sought to combine construction, utilities, and property-maintenance activities.
Action taken
Fastflow Group acquired United Living and placed the enlarged group under Neil Armstrong as chief executive and chairman.
Aftermath
The transaction broadened the operating platform beyond construction and housing work into utilities and maintenance.
2015
Launch the United Living Group identityStrategyBackground
The 2014 merger created a new combined construction company that required a unified market identity.
Action taken
United Living Group was launched as the brand for the merged construction operation.
Aftermath
The business continued developing across construction, utilities, and property maintenance before later ownership changes.
2014
Combine United House Ltd with Bullock ConstructionM&ABackground
Both contracting businesses had investment links to Lloyds Development Capital and were brought together during a restructuring of United House Group.
Action taken
The companies formed a new construction business named United Living Group, while United House Developments became a separate development company.
Aftermath
The United Living brand launched in April 2015, creating the immediate predecessor to United Infrastructure.
Recent events
- 2025
United Infrastructure agreed to acquire John Wood Group's UK Transmission & Distribution business[1]
M&A
The reported agreement would add overhead-line and underground-cable engineering and installation capabilities to United Infrastructure's portfolio.
- 2023
Apollo Global Management completed purchase of the company[1]
M&A
Apollo Global Management completed its acquisition of the company, which had previously operated under the United Living identity.
- 2019
Fastflow Group acquired United Living[1]
M&A · Leadership change
Fastflow Group acquired United Living and combined its construction, utilities, and property-maintenance activities.
- 2015
United Living Group brand launched[1]
Product launch
The newly combined construction company introduced the United Living Group brand.
- 2014
United House contracting business merged with Bullock Construction[1]
M&A
A restructuring combined United House Ltd with Bullock Construction to create the construction business that became United Living Group.
Sources1 sources
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