PTSG Acquires IDSL from LDC in Strategic Deal

Premier Technical Services Group (PTSG) has finalized the acquisition of Integrated Doorset Solutions Group (IDSL), a prominent provider of compliance-driven fire door solutions. This strategic move marks the exit of private equity firm LDC, which held a stake in IDSL for two years, during which the company experienced substantial expansion. IDSL, headquartered in Mansfield, offers a comprehensive suite of services including manufacturing, inspection, and maintenance for fire doors, serving critical sectors such as healthcare, education, and property development.

Under LDC's stewardship, IDSL significantly enhanced its operational capabilities and market reach. The investment facilitated organic growth initiatives and supported two key acquisitions: Hartland Fire in November 2024 and Fire Doors Rite in January 2026. These strategic additions bolstered IDSL's scale, diversified its client base, and integrated complementary expertise, particularly within its inspection and maintenance divisions. The company also invested heavily in its workforce, technology, and infrastructure, including the establishment of a new 20,000 sq. ft manufacturing facility.

The financial performance of IDSL during the partnership with LDC was robust. The company reported a 73% surge in revenue, reaching £60 million, and nearly tripled its EBITDA to £14 million. Headcount also saw a considerable increase, growing by 70% from 286 to 485 employees. This growth trajectory underscores the effectiveness of LDC's strategy in supporting management teams to accelerate development through both internal investment and targeted M&A. The transaction was overseen by David Bains, Partner and Head of East Midlands and East of England at LDC, and Portfolio Director Andrew Holman.

IDSL's commitment to sustainability and corporate responsibility was also a focus during the LDC partnership. The company achieved ISO 14064 accreditation for carbon measurement, implemented a fleet emissions reduction program, and enhanced waste management processes. Maintaining its FSC certification further demonstrated its dedication to using sustainably sourced timber in its products. These ESG advancements align with increasing market demand for environmentally conscious business practices within the construction and building services sectors.

The acquisition by PTSG is expected to provide IDSL with a robust platform for its next phase of growth. PTSG, backed by Warburg Pincus and Macquarie Capital, plans to leverage its operational expertise and proven business model to further accelerate IDSL's development. The integration aims to preserve IDSL's specialized knowledge, customer-centric approach, and entrepreneurial spirit, ensuring continuity while capitalizing on new opportunities. This move is consistent with PTSG's strategy of consolidating its position in the fire safety and compliance services market, a sector experiencing steady demand driven by stringent regulatory requirements and a heightened focus on building safety.

LDC's successful exit from IDSL highlights its active role and expertise within the business services sector. Over the past decade, LDC has deployed £671 million across 16 businesses in this segment, demonstrating a consistent track record of value creation. IDSL's CEO, Ash Malhan, expressed confidence in the future, stating, "We’re looking forward to accelerating our growth as part of PTSG and continuing to deliver the highest standards of fire safety compliance." The transaction was supported by advisory services from KPMG, CIL, BDO, Brown Jacobson, and Dains for IDSL, and Dean Street Advisors and RSM for PTSG.