
Precision engineering and turnkey installation for commercial refrigeration, cold storage, and HVAC systems. Whether upgrading aging, inefficient units or executing complete tenant improvements, we deliver code-compliant, energy-efficient mechanical installations tailored to your facility’s demands.
Seamless changeouts for commercial walk-in coolers, freezers, rooftop package units, and split systems with minimal disruption to your daily operations.
High-efficiency equipment installations engineered to meet strict Title 24, EPA, and regional environmental standards while drastically reducing operational utility costs.
Comprehensive mechanical installations for restaurants, supermarkets, cold storage facilities, and commercial tenant improvement (TI) build-outs from blueprint to startup.

Turnkey commercial refrigeration installations tailored to your facility’s layout and cooling load. From custom walk-in coolers and freezers to multi-door display cases and line equipment, our certified technicians ensure precise piping, seamless electrical integration, and optimal startup performance.

Fast, efficient changeouts for aging condensing units, evaporators, and complete refrigeration systems. We minimize business downtime by swapping out outdated, inefficient equipment with modern, energy-efficient units engineered to lower operating costs and prevent critical breakdowns.

Custom thermal solutions engineered for demanding commercial and industrial environments. We design, service, and optimize high-capacity chillers, blast freezers, process cooling systems, and cold storage facilities to maintain precise temperature integrity and meet strict food safety standards.

End-to-end mechanical engineering and turnkey installation built around your facility's operational load. From blueprint layout and load calculation to equipment rigging and precision piping, we deliver fully compliant, high-efficiency refrigeration systems on schedule.

Fast changeouts for aging condensing units, compressor racks, evaporators, and cooling towers with zero unnecessary operational disruption. We swap out failing equipment for modern, low-GWP compliant systems that lower utility costs and prevent catastrophic product loss.

Comprehensive project management for multi-door commercial build-outs, supermarket tenant improvements (TI), and large-scale industrial warehouse expansions. Our certified contractors handle permitting, mechanical integration, electrical hookups, and final startup testing.

Strategic facility assessments and energy audits to identify cooling inefficiencies, mechanical risks, and code compliance gaps. We provide facility managers and business owners with actionable ROI projections, equipment lifecycle analysis, and customized capital replacement plans.

Cost-effective equipment upgrades that extend system lifespan without requiring full teardowns. We upgrade outdated systems with high-efficiency ECM fan motors, smart defrost controls, low-GWP refrigerant retrofits, and LED lighting to slash monthly overhead and meet Title 24 standards.
If your unit is over 10–12 years old, requires frequent refrigerant top-offs, suffers from recurring compressor failures, or uses phased-out refrigerants, replacement is typically more cost-effective than continuous repairs. A new high-efficiency system significantly lowers monthly utility bills and prevents catastrophic inventory loss.
Most standard direct changeouts (such as rooftop package units, split-system condensers, or evaporator coils) take between 1 to 2 days. Complete custom walk-in installations or multi-system cold storage projects generally require 3 to 7 business days, depending on mechanical piping, structural adjustments, and permitting.
. All mechanical installations are fully compliant with California Title 24 energy standards, regional building codes, and EPA/CARB refrigerant regulations. We engineer each system with compliant low-GWP refrigerants and energy-efficient controls to guarantee pass-rate compliance.
A full replacement involves removing the entire assembly—including condensing units, piping, evaporators, and insulated panels—and installing all-new hardware. A retrofit preserves intact structural components (like the walk-in box or duct framework) while upgrading mechanicals, compressors, ECM motors, and defrost controls to improve energy efficiency at a lower upfront cost.
Modern commercial refrigeration and HVAC systems equipped with ECM fan motors, variable-speed compressors, and smart electronic expansion valves (EEVs) consume up to 30–40% less electricity than older shaded-pole and fixed-speed units, providing an immediate reduction in monthly operating overhead.
We handle the complete, EPA-certified decommissioning of your equipment. Our certified technicians safely recover and log all regulated refrigerants in compliance with EPA Section 608 guidelines, followed by responsible mechanical recycling and disposal of the old metal condensing units, coils, and cabinetry.
Every installation follows a rigorous commissioning checklist before handover. Our technicians perform a deep triple evacuation/vacuum test, precision refrigerant charging, superheat and subcooling verification, electrical voltage and amp-draw monitoring, airflow balancing, and safety cut-out testing to ensure factory-spec performance from day one.
PSI Refrigeration Inc. is a fully bonded, licensed, and certified commercial contractor(CA License #1102379, C-38 classification). Our certified service fleet targets high-volume commercial properties, restaurants, ghost kitchens, and facility management networks throughout Los Angeles County, San Fernando Valley, San Gabriel Valley and Orange County.
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