Can Rodents Damage Wiring and Equipment in Commercial Buildings?

We haven’t seen a rat, but suspect something is damaging our equipment. Can rodents chew through electrical wiring?

Yes, rodents cause severe damage to wiring and equipment in commercial buildings. Rats and mice have front teeth that grow constantly. To keep them worn down, they gnaw on hard objects every day. In commercial spaces, they chew through plastic conduit, rubber casing, and network cables inside walls and drop ceilings.

Unchecked rodent damage to wiring creates major fire and safety hazards. When a rodent-chewed electrical wire is left bare, it can trigger short circuits. It can also cause sudden power outages. In fact, rodent chewing electrical wires are the causes of many unexplained commercial structure fires each year. Rodents can also ruin HVAC units, security systems, server cords, and factory machines. These breakdowns lead to costly downtime and lost revenue.

In North Carolina and South Carolina, commercial property managers must follow strict building and fire safety codes. Fire marshals and health inspectors can issue citations if pest hazards threaten a building. Insurance providers may also deny fire claims if problems stem from neglected pests.

Common warning signs include:

• Flickering lights, tripped breakers, or unexpected network failures.
• Plastic shavings, chewed insulation, and shredded paper near utility panels.
• Dark grease marks and droppings along pipe runs and wire tracks.
• Damaged motor belts or cooling unit controls.

Commercial rodent exclusion is your best defense. Sealing small gaps and establishing routine inspections will protect your building's wiring, expensive equipment, and bottom line.