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Portfolio News: Complii acquires Capital Fire Doors

Complii, formerly known as Compliance Group, and a leading provider of building compliance services, has announced the acquisition of Capital Fire Doors, a London-based specialist in passive fire protection. This strategic move further enhances Complii’s building compliance offering by integrating a comprehensive suite of fire safety services and expanding its UK-wide operational reach.

Capital Fire Doors is renowned for delivering a full range of third-party accredited passive fire protection solutions. The company consistently delivers to the highest standards, on time and on budget, providing customers with peace of mind that their buildings are safe and legally compliant. Their comprehensive services cover fire door installation and repair, fully accredited fire door surveys and inspections, pre-planned fire door maintenance, fire stopping and compartmentation, steel and aluminium doors and screens, and automatic opening doors.

The company serves a diverse client base across the UK, including residential blocks, educational institutions, healthcare facilities, hotels, and commercial and industrial buildings. This includes residential, housing associations, social housing and high-rise residential buildings, along with educational sites like schools, universities, and student accommodation. The passive fire specialists also service healthcare facilities such as hospitals and care homes, secure mental health units, as well as hotels, leisure, and various commercial settings including office buildings, retail premises, and laboratories.

Capital Fire Doors will continue to operate under its current leadership, maintaining its strong commitment to client relationships. Commercial Director, Michael Fisher, and Operations Director, Nathan Cranstoun, along with the entire team, will remain in their current roles.

“This is an exciting milestone for our team and our customers. Joining Complii gives us the scale and support to grow while continuing to deliver the high standards our clients depend on. It also opens the door to an even broader range of building compliance solutions, creating a great fit and a bright future for everyone involved.

“The addition of Capital Fire Doors further strengthens Complii’s capabilities in passive fire protection at a time of rising demand for these services and growing importance for building safety and compliance. We’re delighted to welcome Michael, Nathan, and the entire Capital Fire Doors team on board

The acquisition reinforces Complii’s commitment to being a fully committed partner, dedicated to achieving shared safety goals. The integration of Capital Fire Doors will enable Complii to offer an even more comprehensive and seamlessly delivered suite of passive fire protection and compliance solutions to building owners and operators nationwide.

About Complii

Complii (formerly Compliance Group) is one of the UK’s leading providers of building safety and regulatory compliance services. Through its ‘buy and build’ strategy, the company has assembled a network of specialist businesses, delivering building compliance services across water, air, fire and electrical. Complii helps clients to reduce risk, improve safety and assure regulatory compliance in a wide range of sectors including hospitality and leisure, manufacturing, social housing and care homes, the public sector, construction, healthcare, pharmaceutical, education and retail.

About Capital Fire Doors

Capital Fire Doors, based in London, is a specialist in passive fire protection, delivering a comprehensive range of services including fire door installation, fire door surveys & inspections, fire door maintenance, and fire stopping. The company serves a diverse client base across the UK, including residential blocks, educational institutions, healthcare facilities, hotels, and commercial and industrial buildings. With a customer-first approach, Capital Fire Doors is committed to delivering the highest standards of service while building lasting relationships founded on trust and reliability.

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