Commercial Subpanel installations & Replacements
Overview
Oahu Electric and Air installs and replaces commercial subpanels, distribution panels and equipment panels for businesses, warehouses and large residential buildings. Our work is clean, reliable and fully code compliant to support modern electrical loads.
​
What We Do
We handle the full scope of commercial subpanel work including new panel installations, panel replacements, load balancing, feeder upgrades, grounding and bonding improvements and equipment power distribution. Our team coordinates with your GC, building management and inspectors to keep projects moving smoothly.
​
Our Capabilities
We’re equipped for complex panel work across commercial environments. Our team handles high-amp subpanels, multi-panel configurations, heavy gear installation, load calculations, conduit reroutes and coordination for shutdowns and energization. Whether it's a small tenant panel or a large building distribution upgrade, we install systems that are organized, safe and ready for continuous operation.
Services
-
New commercial subpanel installations
-
Subpanel replacements and relocations
-
Panelboard upgrades and expansion panels
-
Feeder upgrades, resizing and rerouting
-
Load balancing and panel reorganization
-
Grounding and bonding improvements
-
Equipment power circuits and distribution
-
Conduit additions for branch circuits
-
Breaker replacements and panel labeling
-
Temporary power and shutdown coordination
-
System testing and final device trim
-
HECO and AHJ coordination for panel changes
​​How We Work With Your Team
We coordinate directly with your GC, property managers and engineers to schedule shutdowns, organize work in active spaces and keep communication clear. Our team adapts to site conditions and works efficiently to minimize downtime.
Why It Matters
Proper subpanel installation ensures safe distribution, balanced loads and reliable power for equipment. Clean layouts, correct sizing and grounded systems prevent tripping, overheating and costly electrical issues in commercial spaces.
​
​
Compliance and Coordination
All installations meet NEC requirements and local codes. We manage inspection scheduling, load calculations, labeling, testing and coordination with HECO or building engineers for energization.