Construction, structural and architectural works after acceptance, carried out on an operational facility

Operating Data Center facilities require not only ongoing maintenance but also supervised construction work after the facility is commissioned. Planned maintenance, equipment replacements, changes to the installation layout, tenant modifications, and local upgrades create the need for safe execution of civil, structural, and architectural works in a live environment.

Larget supports technical maintenance, modernization, and live work in data center facilities by implementing CSA (civil, structural, and architectural) works in an operational facility. We work at the intersection of structures, building envelope, access zones, maintenance routes, and the physical requirements resulting from MEP installation modernization. From inventory and design support, through delivery, logistics, and assembly, we deliver ready-to-build packages complete with QA/QC, as-built documentation, and clear handover to FM and operations teams.

Typical scopes of work

• repair and restoration work resulting from technical maintenance
• modernization works in technical rooms, service areas and operational spaces
• changes to the layout of technical corridors and Data Hall interfaces
• new passages, openings and local structural modifications required by maintenance or upgrade
• replacement or modification of partitions, ceilings, panels and separation zones
• improved access to inspections, service and safe maintenance routes
• security and retention solutions in plant zones and electrical rooms
• fast ranges carried out in service windows and under strict rules of work on an active facility

What we deliverWe prepare implementation packages tailored to the constraints of an active campus, access policies, and maintenance requirements performed in a live environment.

Construction and building works

• secondary structures, supports, frames and local reinforcements
• platforms, walkways, service passages and service structures
• modifications of sandwich panels, internal partitions, technical ceilings and built-ins
• local repairs of building partitions, joints and finishes

Installation penetrations and fire interfaces

• Cable and pipe penetration solutions, including pedestals, covers and Roxtec systems where required
• fireproof seals and compartmentation details in accordance with the facility's requirements
• moisture protection and sealing at critical points

Support for plantation zones and areas requiring protection

• drip trays and retention solutions for oil, water or glycol risk zones
• protective barriers and separation zones around chillers, CRAH/CRAC units and generators
• Airflow control support elements where required, including air curtains, canopies and circulation walls

Security and controlled access zones

• mesh partitions, cages, access control posts and modular housings
• modifications and extensions tailored to the operational system and maintenance routes

How We Conduct Work in an Active Facility: Maintaining and modernizing a live data center requires discipline, predictability, and clear interface management. Our approach includes:

• precise definition of the scope, products and collection points
• planning access, transport routes, permit-to-work requirements and safe implementation
• sequencing work according to service windows, outage plan and operational constraints
• documented QA/QC, updated as-built documentation and complete handover to FM and operations
• inventory, model verification or 3D scanning / reverse engineering where necessary to confirm the existing condition before prefabrication or assembly

What does an investor, developer or user of a facility receive?

• ready-to-install packages and components with clearly defined interfaces
• documentation consistent with facility standards, including QA/QC and traceability records where required
• complete information for safe operation, maintenance and further changes
• practical engineering support to help reduce rework and control the risk of downtime