Electrical tenant-improvement bids often miss the same categories because drawings and landlord criteria do not answer every field question. The obvious branch wiring and device counts get priced. The risk sits in the coordination items: existing panel capacity, feeder pathways, service upgrade assumptions, transformer exposure, metering requirements, lighting controls, low-voltage boundaries, fire alarm interfaces, temporary power, permitting allowances, and after-hours access.
The first common gap is existing electrical condition. A plan can show new devices without proving that the existing panel, feeder, electrical room, or utility service can support the final tenant load. That does not mean an estimator should make a design decision. It means the bid should state what is assumed and what is excluded until the responsible design and utility information is available.
The second gap is equipment responsibility. Restaurants, clinics, retail back-of-house spaces, warehouse tenants, and light-industrial users often bring equipment that changes the electrical conversation. Dedicated circuits, disconnects, GFCI requirements, rough-in details, final connections, controls interfaces, and vendor equipment coordination can sit between the electrical drawings, food-service drawings, mechanical equipment schedules, and tenant-provided equipment lists. If that boundary is not named, it can turn into an unpriced obligation.
The third gap is systems coordination. Lighting controls, emergency lighting, fire alarm interfaces, access control, data rough-ins, security, audio/visual, signage, and low-voltage pathways are often split between trades or vendors. The electrical bid should make clear whether it includes conduit only, boxes only, power only, terminations, devices, programming, testing support, or none of those items.
The fourth gap is schedule and access. Occupied spaces, malls, healthcare spaces, restaurants, and operating warehouses can force after-hours work, phased shutdowns, temporary power, lifts, protection, and cleanup that do not show up in a clean quantity takeoff. Those items are scope and production issues that need to be visible in the estimate. If those assumptions are buried, the low bid may only be low because it left the production risk unnamed.
MeTiger's view is simple: a cleaner tenant improvement bid is not just a lower number. It is a number with assumptions that can survive review. This commentary is budgetary estimating context only and does not provide design directives, code interpretations, load calculations, or permit documents. For early range context, compare the budgetary $/sqft note with the calculator.