Electrical systems are the backbone of every commercial property, powering lighting, HVAC, life safety, communications, and tenant operations. An undetected electrical deficiency can trigger arc faults, service interruptions, code violations, and catastrophic fire loss. A commercial electrical inspection gives buyers, owners, and lenders a clear picture of system condition, capacity, code compliance posture, and near-term capital exposure. Core Building Inspections performs commercial electrical inspections throughout the Philadelphia metro area and across PA, NJ, NY, and DE.
Our inspections follow a systematic, standards-referenced approach aligned with CCPIA, ICC, and ASTM guidelines. We evaluate the full electrical distribution chain, from the service entrance and main disconnect through switchgear, panelboards, branch circuitry, grounding and bonding systems, emergency power, and life-safety components. Each inspection is scoped to the property type, building age, service capacity, and purpose of the evaluation.
Whether you are acquiring a commercial property, planning capital improvements, or evaluating electrical condition as part of a broader due diligence effort, our commercial electrical inspection delivers the documentation and insight you need to make confident, informed decisions.
Electrical systems in commercial buildings operate at higher voltages, carry heavier loads, and serve more complex distribution networks than residential wiring. A commercial property may have three-phase power, multiple transformer banks, high-amperage switchgear, dedicated emergency circuits, and dozens of panelboards spread across floors and mechanical rooms. The failure modes are different, the consequences are more severe, and the capital costs of repair or replacement are significantly higher.
Commercial electrical inspection identifies aging infrastructure, overloaded circuits, deteriorated components, improper modifications, and conditions that increase fire risk or reduce system reliability. For buyers, it quantifies the cost of bringing the electrical system to an acceptable standard. For owners, it supports maintenance planning and helps prioritize upgrades before failures occur. For lenders, it documents electrical system condition at the time of financing and reduces risk exposure.
NFPA 70B, which became a full standard in 2023, establishes condition-based inspection intervals for commercial electrical equipment. Panelboards and switchboards in good condition require visual inspection and testing every 60 months. Equipment showing signs of deterioration requires attention every 12 months. Power transformers need visual inspection at least annually regardless of condition, and infrared thermography scans are recommended every 6 to 12 months for all electrical equipment.
Beyond scheduled maintenance inspections, commercial electrical systems should be evaluated at every property transaction, before any major renovation or change of use, after any electrical incident (arc flash, equipment failure, surge event), and after significant storm activity that may have affected service entrance equipment or exterior components. For properties in the Philadelphia metro area and across PA, NJ, and DE, seasonal exposure to lightning, high winds, and ice loading makes periodic electrical evaluation especially important.
The most important distinction in a commercial electrical inspection is not what is inspected but who is performing the inspection and what their incentives are. An electrical contractor who performs inspections also sells upgrades, rewiring, and panel replacements. Their assessment is not independent, and their business model creates an inherent financial interest in recommending more work, not less.
Core Building Inspections is not an electrical contractor. We do not sell electrical repairs, upgrades, panel replacements, or maintenance contracts. Our only deliverable is an objective, documented evaluation of electrical system condition. This independence matters most in three scenarios: pre-purchase due diligence, where the buyer needs an unbiased condition opinion before committing capital; insurance and liability situations, where all parties need a neutral technical assessment; and capital planning, where the owner needs to know what to budget for over the next one to five years without the influence of a contractor’s sales pipeline.
As CCPIA, ICC, and ASTM-credentialed inspectors, we bring professional accountability and standards-driven methodology without the conflict of interest that arises when the inspector who identifies deficiencies is also the contractor who profits from correcting them.
We evaluate the service drop or lateral, meter socket enclosures, service entrance conductors, and main disconnecting means. Service amperage rating, conductor condition, and evidence of overheating, corrosion, or physical damage are documented. The service entrance is the foundation of the building’s electrical system, and deficiencies here affect everything downstream.
Switchgear, switchboards, and main distribution panels are inspected for physical condition, labeling, accessibility, and working clearance compliance. The National Electrical Code requires a minimum of 30 inches wide, 36 inches deep, and 78 inches high of clear working space in front of all electrical equipment. Restricted access and missing clearances are among the most common commercial electrical deficiencies.
Each accessible panelboard is evaluated for physical condition, evidence of overheating or corrosion, proper labeling, unfilled breaker openings, and appropriate overcurrent protection sizing. We verify that disconnect ratings do not exceed panel bus ratings, a condition that can lead to catastrophic failure during a fault event.
Proper grounding and bonding are critical to electrical safety and equipment protection. We inspect the grounding electrode system, main bonding jumper, equipment grounding conductors, and bonding connections at the service entrance and throughout the distribution system. Deficient grounding increases shock hazard, equipment damage risk, and susceptibility to lightning and surge events.
A representative sample of switches, receptacles, lighting fixtures, and wiring methods is evaluated. We document open junction boxes, open wiring splices, improper use of flexible cords as permanent wiring, painted receptacles and switches, missing or damaged faceplates, and evidence of unauthorized or non-code-compliant modifications.
Ground-fault circuit interrupter (GFCI) receptacles and circuit breakers are tested where accessible. The NEC requires GFCI protection in 15 specific commercial location types, including bathrooms, kitchens, rooftops, outdoor areas, and any location where receptacles are within six feet of a sink. Missing GFCI protection in required locations is one of the most frequently cited commercial electrical deficiencies. Arc-fault circuit interrupter (AFCI) protection is evaluated where present.
Emergency electrical systems, including transfer switches, emergency panels, and generator connections, are visually evaluated where accessible. Emergency power must be available within 10 seconds of normal power failure per NEC requirements. We document the presence and general condition of emergency power components, illuminated exit signs, and battery-backed emergency lighting at egress points.
Building-side transformers that step voltage up or down for specific distribution needs are inspected for physical condition, mounting, labeling, and accessibility. Transformer condition affects power quality and reliability throughout the systems they serve.
Commercial electrical systems vary based on building size, age, use, and utility service configuration. Our inspectors are experienced with all major commercial electrical configurations:
Each configuration has different inspection considerations, failure modes, and capital replacement implications. Our inspection approach is adapted to the specific electrical infrastructure installed in your property.
Commercial electrical deficiencies follow predictable patterns based on building age, maintenance history, and modification frequency. Common findings include:
Identifying these conditions early allows property owners and buyers to plan upgrades, negotiate pricing, and avoid costly emergency repairs or code enforcement actions.
Electrical systems are vulnerable to damage from lightning strikes, power surges, flooding, and severe weather. Post-event electrical inspections identify surge damage to distribution equipment, water intrusion into electrical rooms and panels, damage to exterior service entrance components from high winds or ice loading, and compromised grounding systems.
For properties across the Philadelphia metro area, South Jersey, and the Delaware Valley, seasonal exposure to summer lightning activity, nor’easters, and ice storms makes post-event electrical evaluation a practical necessity. Timely documentation also supports insurance claims and loss recovery.
Our standard commercial electrical inspection is a visual, non-invasive evaluation aligned with CCPIA commercial standards of practice. In some cases, the findings of a visual inspection may warrant additional diagnostic testing:
Infrared Thermography: Infrared scanning detects hot spots at connections, breakers, and conductors that indicate loose connections, overloaded circuits, or deteriorating components before they cause failure or fire. NFPA 70B recommends infrared scans every 6 to 12 months for commercial electrical equipment. Thermographic surveys are particularly valuable for aging buildings, high-demand facilities, and pre-purchase due diligence.
Power Quality Analysis: For facilities experiencing equipment malfunctions, flickering lights, or unexplained circuit trips, power quality monitoring can identify voltage sags, harmonics, transients, and load imbalances that are not detectable during a visual inspection.
Arc Flash Hazard Analysis: NFPA 70E requires employers to perform arc flash risk assessments for commercial and industrial electrical systems. While outside the scope of a standard property inspection, we identify when an arc flash study should be recommended based on system configuration, equipment age, and available fault current.
These diagnostic methods are recommended based on the specific findings of the visual evaluation and the purpose of the inspection. Our role is to identify when additional testing adds value and to clearly communicate that recommendation.
Electrical system upgrades, including panel replacements, service upgrades, switchgear replacement, and rewiring, are among the most expensive capital expenditures in commercial property ownership. A well-timed commercial electrical inspection supports capital planning by identifying where the electrical system stands relative to current code, what maintenance or repairs can extend component service life, and when major upgrades should be budgeted.
Our inspection reports provide the observational data needed to support capital reserve planning, insurance discussions, and long-term ownership strategy. For properties where granular cost estimates are needed, our Cost to Cure Reporting service provides detailed financial analysis tied to specific electrical repair and upgrade items.
Electrical systems are a critical component of every Property Condition Assessment. Our commercial electrical inspection can be performed as a standalone service or as part of a broader PCA conducted in general conformance with ASTM E2018. When performed within a PCA, the electrical evaluation contributes to the overall capital needs table, remaining useful life analysis, and opinions of probable cost.
For properties where the electrical system is the primary concern, a standalone commercial electrical inspection provides focused, detailed documentation without the full scope and cost of a complete PCA.
Our commercial electrical inspection clients include commercial real estate buyers, investors, property managers, asset managers, lenders, attorneys, and building owners. Reports are structured to support acquisition due diligence, loan underwriting, capital planning, and ongoing portfolio management.
A small amount of preparation shortens inspection time and improves report quality. Before your scheduled inspection, gather any available electrical documentation: original electrical plans or one-line diagrams, panel schedules, prior inspection reports, maintenance records, and any known electrical issues or incident history. Ensure safe access to all electrical rooms, panels, and mechanical spaces.
If specific areas of concern exist, such as recurring circuit trips, flickering lights, equipment that has been de-energized, or recent tenant fit-out work, communicate those to the inspector in advance. This context allows the inspection to focus additional attention on known problem areas while still providing a complete evaluation of the accessible electrical system.
We provide commercial electrical inspections throughout the Philadelphia metropolitan area, all of New Jersey, New Castle County in Delaware, and select markets in New York. This regional footprint supports buyers, owners, and lenders working across the tri-state area and beyond.
Certified under nationally recognized commercial inspection standards to ensure consistency, accuracy, and professional accountability.
CCPIA Certified
Certified under nationally recognized commercial inspection standards to ensure consistency, accuracy, and professional accountability.
ICC Certified
Ongoing education and training aligned with current safety practices, codes, and inspection methodologies.
ASTM Member
Inspections performed in general conformance with ASTM standards, supporting due diligence and lender requirements.
Years of Experience
Extensive field experience inspecting diverse commercial properties across multiple asset types and markets.
Highly Trained
Continuous training and practical expertise focused on risk identification, system performance, and long-term planning.
No. A commercial electrical inspection evaluates system condition, safety, and functionality. It is not a code enforcement inspection performed by the authority having jurisdiction (AHJ). However, our inspection identifies conditions that may not meet current NEC requirements, which is valuable for buyers, owners, and lenders assessing risk and planning upgrades.
An independent inspector has no financial interest in selling upgrades or repairs. Core Building Inspections is not an electrical contractor. We do not perform electrical work. Our only deliverable is an objective, documented condition assessment, which means our findings are unbiased and defensible for negotiations, insurance matters, and capital planning.
The most common findings include missing GFCI protection in required locations, inadequate panel labeling, insufficient working clearance at electrical equipment, unfilled breaker openings, deteriorated service entrance components, overloaded circuits, and improper wiring modifications. Older buildings frequently have outdated equipment that no longer meets current safety standards.
Our standard inspection is visual and non-invasive. When findings suggest concealed issues such as hot connections, overloaded circuits, or power quality problems, we recommend infrared thermography, power quality analysis, or other diagnostic methods and can coordinate those specialized services.
The inspection identifies where the electrical system stands in its lifecycle, what maintenance or repairs can extend component service life, and when major upgrades such as panel replacements, service upgrades, or switchgear replacement should be budgeted. This data feeds directly into capital reserve planning and long-term ownership strategy.
