Trivest Forms Sentinel Dock & Door Solutions Through Acquisition of Lenworth, Pro-Door and Mar-Lin

ASSA ABLOY Acquires Sentinel Dock & Door in Canada

June 2, 2026

Industrial Services

ASSA ABLOY has acquired Sentinel Dock & Door, a Canadian commercial dock and door service company headquartered in Ontario. The acquisition is intended to strengthen ASSA ABLOY’s direct channel presence and expand its footprint across Canada within its Entrance Systems division.

Sentinel Dock & Door Solutions Acquires Door Doctor

April 8, 2025

Industrial Services

Sentinel Dock & Door Solutions, a Trivest-backed Canadian dock and door services platform, has acquired Door Doctor, a Montreal-based provider of commercial overhead door and loading-dock services. The add-on expands Sentinel's footprint into Quebec and Eastern Ontario while allowing Door Doctor to retain its brand and access Sentinel's operational resources.

Trivest Partners Acquires Besser Garage Doors

March 4, 2025

Building Products

Miami-based private equity firm Trivest Partners has partnered with Besser Garage Doors, a Santa Ana, California residential garage door services provider, to support the company’s next phase of growth. The deal pairs Trivest’s lower-middle-market investment platform with Besser’s experienced management team to accelerate expansion of service, installation, and acquisition initiatives across Southern California.

Guardian Capital Partners Forms North American Door & Dock with Acquisition of American Overhead Door & Dock

June 27, 2024

Industrial Services

Guardian Capital Partners has formed a new platform, North American Door & Dock, and completed the initial acquisition of American Overhead Door & Dock, LLC, a Levittown, Pennsylvania-based commercial door and loading-dock services provider. Guardian will scale the platform through organic investment and buy-and-build M&A to expand geographic coverage, capabilities, and infrastructure while retaining members of the Swope family management team.

Soundcore Capital Partners Forms Door & Dock Holdings with Investments in Top Notch Dock & Door, Top Notch Garage Door and Premier Overhead Doors

January 3, 2024

Industrial Services

Soundcore Capital Partners has formed Door & Dock Holdings and made initial investments in Top Notch Dock & Door, Top Notch Garage Door and Premier Overhead Doors, all based in Oakwood, Georgia. O2 Sponsor Finance provided $12 million of senior secured credit facilities to support the platform formation and these acquisitions as part of a buy-and-build strategy to expand overhead door, dock leveler and access control installation, repair and maintenance services across the Southeast.

Trivest Partners Invests in Lenworth Building Services

May 2, 2023

Industrial Services

Lenworth Building Services, a Mississauga-based provider of commercial overhead doors, loading dock equipment and industrial fans, has partnered with Miami-based private equity firm Trivest Partners. The founder will remain in an advisory role and the company will continue to be led by President Spencer Cawker as Trivest supports expansion of Lenworth’s footprint and service capabilities across Canada.