Cologne/Hürth, May 19, 2026: BLOK exclusively advised B&O Service on the acquisition of LGI Immobilien Service.

B&O Service is a family-owned company headquartered in Bad Aibling, Upper Bavaria, with more than 2,100 employees across approximately 30 locations throughout Germany. Its business activities are exclusively focused on the residential housing sector and cover both the full range of residential modernization services as well as the maintenance of housing stock. Currently, the company maintains more than 640,000 apartments annually and renovates more than 6,500 apartments each year.

As part of the strategic expansion of its residential modernization business in North Rhine-Westphalia, B&O Service decided to strengthen its regional presence through a long-term partnership with LGI Immobilien Service. At the same time, the transaction also successfully addressed the seller’s succession planning.

LGI Immobilien Service is a well-established company in the Cologne/Hürth region, with more than 18 years of experience in modernization and refurbishment services for residential housing stock. The company is managed by the seller together with his two sons, who will remain with the business for the long term following the transaction and, together with B&O Service, will continue to strengthen the residential modernization business.

BLOK supported the transaction as exclusive M&A advisor to B&O Service throughout the entire process — from structured preparation and the initial introductory discussions to the organization and coordination of the due diligence process, as well as the final negotiations and successful closing.

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