Map the Operation Before Developing the Construction Phases

The contractor should begin by learning how materials, people, equipment, and information move through the existing facility. Receiving routes, production lines, storage areas, quality-control stations, maintenance spaces, employee entrances, shipping docks, and waste-handling areas should all be documented. The team should identify which activities are continuous, which can move temporarily, and which can pause only during scheduled maintenance or planned shutdown periods.

Meanwhile, production volumes may change during the year. A walkthrough during a quiet shift may not show the conditions present during peak demand, seasonal production, or major customer orders. Operations leaders can help the construction team understand when certain areas become most critical. Utility mapping is particularly important. Electrical power, compressed air, process piping, gas, water, drainage, data, ventilation, and fire protection may connect several production areas. New systems eventually need to tie into the existing facility, and those connections may require shutdowns. The project team should identify each tie-in, determine which equipment or departments it affects, and establish whether temporary service is practical.

Did you know that a short utility interruption can require much more recovery time than the shutdown itself? A production line may need to be cleaned, recalibrated, reheated, repressurized, or inspected before work resumes. The construction schedule should reflect the owner’s complete operational impact rather than only the time needed to make the physical connection. Temporary systems may reduce disruption. These can include generators, temporary compressed air, bypass piping, temporary ventilation, relocated equipment, or alternate material routes.

However, temporary work should be engineered and coordinated carefully. It must support the required capacity, safety, and quality standards without creating new risks. The physical separation between construction and production also needs attention. Dust, vibration, fumes, debris, temperature changes, and unauthorized access may affect products, equipment, employees, or regulated processes. Barriers, negative air, temporary partitions, sealed openings, dedicated access routes, and daily cleaning may be needed depending on the facility. Food, pharmaceutical, precision manufacturing, and other controlled environments may require additional procedures. Construction materials, tools, and workers may need to follow owner-specific sanitation, security, or quality requirements.

Employee circulation should remain clear and predictable. Temporary paths, relocated exits, changing parking areas, and delivery routes should be communicated before each phase begins. Construction traffic should be separated from forklifts, pedestrians, and production vehicles wherever practical. When routes must cross, schedules, spotters, barriers, and signs can help manage the conflict.

Coordinate Equipment, Utilities, and Turnover in Manageable Stages

Phasing should create completed, usable areas rather than leaving several partially finished zones open at once. One approach may involve constructing the addition first, installing new utilities and equipment, moving part of the operation into the new space, and then renovating the vacated area. Another project may require smaller weekend or night phases around existing production. The correct sequence depends on the building, equipment, business, and available space. Each phase should still define access, protection, utility status, safety controls, and turnover requirements. Equipment installation often drives the schedule. Production machinery may require foundations, pits, structural support, power, controls, compressed air, water, drainage, exhaust, or cooling. Large components may need to enter through temporary wall openings or before the building enclosure is complete. The owner, manufacturer, rigging contractor, design team, and builder should coordinate delivery dimensions, weights, lifting plans, connection points, and startup requirements.

Meanwhile, the responsibility for owner-furnished equipment should be clear. The project team needs to know who unloads it, stores it, sets it, connects it, tests it, and accepts it. A machine arriving late can delay several trades. One arriving too early may occupy valuable space or be exposed to dust and damage. 

• Utility capacity should be evaluated for both initial and future needs. The expansion may increase electrical load, ventilation, cooling, process demand, fire protection, or wastewater volume.
• Upgrades to central systems should be completed early enough to support equipment startup. A finished production area cannot operate if permanent power or process utilities are still awaiting installation.
• Quality control during construction is especially important where new work connects to existing structures and systems. Floor elevations, building joints, roof transitions, wall openings, piping tie-ins, and controls should be verified carefully. Small discrepancies can affect equipment alignment, material movement, sanitation, or maintenance access.
• Communication should occur at both the management and field levels. Weekly planning meetings can address upcoming shutdowns, deliveries, access changes, inspections, and production events.
• Daily coordination between the superintendent and plant representatives allows the team to respond when priorities shift. Manufacturing schedules can change quickly, and the construction plan needs enough flexibility to adjust without losing overall control. 
• Turnover should happen in stages. Completed areas should be inspected, cleaned, tested, and documented before the owner moves equipment or employees into them.
• Training, controls testing, utility verification, safety review, and production trials may all be needed before full operation begins.

The contractor should also prepare for work that continues after partial occupancy. Remaining construction zones need secure separation, while shared utilities, exits, and access routes remain functional. Closeout documentation should include testing records, warranties, operating information, inspection approvals, and accurate records of new and modified systems. This information supports maintenance and future expansion.

Keeley Construction has worked with manufacturers across Chicagoland and the Midwest on ground-up facilities, additions, renovations, equipment installations, and technically demanding industrial upgrades. Keeley’s approach combines preconstruction, design coordination, safety planning, full construction, and direct field leadership to keep projects moving without losing sight of the operation.

Planning an expansion or modernization at an active manufacturing plant? Contact Keeley Construction to discuss production constraints, phasing, equipment, and the construction plan required to protect uptime.