If you manage an office, retail center, restaurant or warehouse in Mesa, Gilbert, Chandler or Queen Creek, the electrical system is easy to forget until something fails. A tripped main, a dark parking lot or a failed exit sign can shut down a tenant, create a safety risk or turn up on a fire inspection.
Short answer: Commercial electrical preventive maintenance is a regular schedule of visual checks, testing and repairs that catches problems before they cause outages or hazards. It covers panels and connections, signs of overheating, exterior and parking lighting, emergency and exit lights, GFCIs, surge protection, labeling, clear panel access and rooftop HVAC disconnects.
Here’s what that looks like for a typical East Valley commercial property, and which items your staff can handle versus what needs an electrician.
Why does preventive maintenance matter for commercial properties?
Reactive repairs happen on the worst possible day: during business hours, in July or in the middle of a monsoon storm. Preventive maintenance moves that work onto your schedule. It helps you:
- Protect tenants, employees and customers from shock and fire hazards
- Reduce surprise outages that close businesses or spoil inventory
- Catch worn parts while they’re a small repair, not an emergency
- Stay ready for fire and building inspections
- Keep clear records for owners and insurance reviews
What should a commercial electrical maintenance checklist include?
Panels, switchgear and connections
- Panel directories are complete, accurate and readable
- The working space in front of panels is clear, with no storage
- No rust, water staining, scorch marks, buzzing or burning smells
- Panel covers and dead fronts are in place, with no open breaker slots
- Connections are checked and tightened by an electrician as needed
- Breakers that trip often are noted and investigated
Lighting
- Parking lot, building and walkway lights all work and come on at the right time
- Timers, photocells and lighting controls are set correctly
- Flickering, buzzing or dead fixtures are logged for repair
- Older fixtures are considered for LED retrofits
Emergency and exit lighting
- Exit signs are lit and visible
- Emergency lights come on when tested with their test buttons
- Fire codes generally call for regular functional tests, including a longer annual test. Your local fire marshal sets the specifics
- Failed batteries or units are replaced promptly, and tests are logged
GFCIs, receptacles and surge protection
- GFCI outlets in restrooms, kitchens, break rooms, rooftops and outdoors are tested with the TEST and RESET buttons
- Damaged cover plates and loose receptacles are reported
- Extension cords and power strips aren’t used as permanent wiring
- Surge protection is in place for sensitive equipment, and indicator lights are checked
Rooftop and HVAC equipment
- Rooftop HVAC disconnects are labeled, latched and weatherproof
- Conduit, fittings and covers are intact after summer heat and storms
- Any equipment that trips its breaker is checked by an electrician
How does Arizona’s climate affect commercial electrical systems?
East Valley heat is hard on electrical equipment. Rooftop units, exterior panels and conduit sit in direct sun all summer, and HVAC runs at full load for months. Monsoon storms bring lightning, wind, dust and water intrusion. Dust can build up in equipment, and rodents, birds and insects nest in warm enclosures and chew wiring. A walk-through before and after monsoon season catches most of this early.
How often should commercial electrical systems be checked?
It depends on the building, its age, its use and what your insurer and local fire code require. A simple approach is to have your own staff do the visual and test-button checks on a regular schedule, then have an electrician walk the property periodically and after any storm damage. Ask us about setting up a maintenance schedule for your property.
What can property staff do safely?
- Walk the property and note dark fixtures, damaged covers or exposed wiring
- Press TEST and RESET on GFCI outlets
- Press the test buttons on exit signs and emergency lights
- Keep panel rooms and electrical closets clear
- Keep a log of what you find and when
Staff should never remove panel covers, tighten connections or work on fixtures. Leave that to a licensed electrician.
When should I call an electrician?
Call right away if you smell burning, see sparks or smoke, or a panel, outlet or switch feels hot. Keep people away from the area, turn off the breaker only if it’s safe and dry to reach, and call 911 if there’s smoke or fire. For a power outage, check with SRP or APS first, then call us if the problem is inside your building. We answer emergency calls 24/7, and our electrical troubleshooting and repair service tracks down recurring trips and flickering.
How can Henderson’s help?
Beyond maintenance, we handle commercial tenant improvements, lighting installation and lighting controls. In Old Town Scottsdale, we completed the electrical tenant improvement for Ponderosa House, a bar and restaurant (read the wrap-up).
Serving Queen Creek and the East Valley
We work with property managers and business owners in Queen Creek, San Tan Valley, Gilbert, Mesa, Chandler, Florence, Scottsdale, Apache Junction and Gold Canyon, Sun Lakes, Tempe, Cactus Forest, Coolidge, Paradise Valley and Ahwatukee.
Frequently asked questions
What is commercial electrical preventive maintenance?
It’s a regular schedule of inspections, testing and repairs for a commercial building’s electrical system, including panels, connections, lighting, emergency lights, GFCIs and HVAC disconnects, so problems are found before they cause outages or hazards.
How often should emergency and exit lights be tested?
Fire codes generally call for regular functional tests plus a longer annual test, and testing should be logged. Your local fire marshal sets the exact requirements for your building.
Can my maintenance staff check the electrical panel?
Staff can keep the area clear, check that the directory is labeled and watch for rust, scorch marks, buzzing or burning smells. They should never remove the cover or tighten connections. That’s work for a licensed electrician.
What electrical problems are common in Arizona commercial buildings?
Heat stress on rooftop and exterior equipment, monsoon water intrusion and surges, dust buildup, pests in enclosures, failed parking lot lighting and breakers that trip under heavy summer HVAC loads.
Who should I call for a commercial electrical emergency?
If there’s smoke or fire, call 911 first. For an outage, check with SRP or APS. For burning smells, hot panels, sparking or a problem inside your building, call Randy at (480) 430-2775. We answer emergency calls 24/7.
Keep your property running
Henderson’s Electric Solutions LLC is a family-owned electrical contractor in Queen Creek, owned by Randy and Tori Henderson. Randy is our licensed electrician (ROC CR-11 #341452), and we’re bonded, insured and BBB accredited. Our CR-11 license covers both residential and commercial work. Ask us about setting up a maintenance schedule for your property.
Call Randy at (480) 430-2775 or request an estimate online. Regular hours are Monday through Friday, 6 AM to 6 PM, and we answer emergency calls 24/7. Solutions Only - No Excuses.