BrightSpark Electric Presents

The Complete Home Electrical Safety Inspection Checklist

Your step-by-step guide to identifying common hazards before calling a pro

This checklist helps Portland homeowners spot electrical red flags like overloaded panels, outdated wiring, and missing safety devices. Use it to prepare for BrightSpark Electric’s free in-home inspection—or to prioritize repairs on your own.

☑ Complete Checklist

Electrical Panel & Main Service

☐Locate the main breaker and verify it is clearly labeled with the service amperage (100A, 150A, 200A).
☐Check for any signs of rust, corrosion, or water stains inside or around the panel enclosure.
☐Inspect for double-tapped breakers (two wires under one terminal screw) – this is a fire hazard.
☐Confirm all breaker handles are firmly in the ON or OFF position, with no loose or wobbly breakers.
☐Look for aluminum branch circuit wires connected directly to the panel bus; these require anti-oxidant compound or special rated terminals.
☐Ensure the panel cover is securely fastened and that no gaps allow dust or debris inside.

Outlets, Switches & GFCI/AFCI Protection

☐Test every GFCI outlet (kitchen, bathroom, garage, exterior) by pressing the TEST button – the RESET button should pop out.
☐Press the RESET button and verify the outlet regains power and the indicator light (if any) turns on.
☐Check for AFCI protection in all bedroom, living room, and family room outlets – look for a marked breaker or test button on the outlet face.
☐Use a plug-in outlet tester to confirm correct wiring: hot/neutral reversed, open ground, or missing ground must be flagged.
☐Inspect switch plates and outlet covers for cracks, missing screws, or discoloration that suggests heat damage.
☐Gently wiggle each outlet (with power off) to feel for loose box connections or crumbling drywall that could cause arcing.

Wiring, Cables & Connections

☐Expose any junction boxes in the attic, crawlspace, or basement – verify they have a tight cover and are not buried in insulation.
☐Look for rodent gnaw marks, frayed insulation, or exposed copper on any visible NM-B (Romex) or older cloth‑covered wiring.
☐Check that all wire splices are inside a rated junction box (never splices unsupported in the wall).
☐Identify any knob-and-tube wiring (hollow ceramic knobs, cloth-covered conductors) – common in pre-1940 Portland homes and a major fire risk.
☐Confirm that all outdoor wiring is rated for wet locations (UF-B cable or conduit) and that underground feeder splices are sealed in a weatherproof box.
☐Inspect flexible metal conduit (Greenfield) for signs of rust or corrosion, especially in basements or near water heaters.

Emergency & Safety Systems

☐Test ground rod or ground plate connection – check for a visible copper wire from the main panel to a rod driven into the earth.
☐Verify that the entire house has non‑metallic sheathed cable (NM) or properly installed metallic conduit – no exposed open splices.
☐Check for a working smoke/CO detector on every level and within 15 feet of all sleeping rooms; confirm it is hardwired with battery backup.
☐Ensure arc‑flash hazard labels are present on the main panel and any subpanel if required by code (NFPA 70E).
☐Identify any temporary wiring (extension cords used as permanent wiring) – this is a code violation that must be removed.
☐Confirm that the service entrance cable (from weather head to meter base) is not damaged, sagging, or touching tree branches.

Exterior & Specialty (EV, Solar, Surge)

☐Inspect all outdoor receptacles for weatherproof covers (in‑use/tar‑like covers) that remain closed when not plugged in.
☐Verify that any EV charger wiring is rated for the charger’s amperage (typically 40A or 50A) and that the breaker is sized correctly.
☐Check for a whole‑house surge protector at the main panel – if absent, note that lightning strikes can damage electronics even without a direct hit.
☐Examine all flexible cords on tools, holiday lights, and landscape lighting for cuts, missing ground prongs, or improper gauge (too small for load).
☐Look for bonding and grounding connections at the gas pipe and water main – a solid copper wire should connect to the pipe within 5 feet of entering the house.

💡 Pro Tips from the Experts

💡 Don't Ignore a Warm Switch Plate

A warm switch or outlet could mean a loose connection behind the wall — turn off the breaker and call a licensed electrician immediately.

💡 GFCI Reset Is Not Enough

After pressing TEST, wait at least 60 seconds before pressing RESET; if the GFCI trips again under normal load, it may be failing and needs replacement.

💡 Aluminum Wiring Requires Special Attention

Homes built between 1965 and 1972 often have aluminum wiring. Never use standard copper‑rated outlets — use approved CO/ALR devices or add pigtails with anti‑oxidant.

💡 Your Panel Should Not Be Warm to the Touch

If the main panel feels hot, the system may be overloaded or a connection is arcing downstream. Have a load calculation done before adding any new circuits.

💡 Extension Cords Are Not Permanent Wiring

If you need an extension cord for more than 90 days, install a new outlet instead. Taping cords under rugs or through walls creates a serious fire hazard.

💡 Older Portland Homes Need a Service Upgrade

Many pre‑1960 homes in Portland still have 60‑amp service and cloth‑covered wiring. Upgrading to 200‑amp service not only improves safety but also supports modern appliances and EV charging.

This guide is for informational purposes. Always consult a licensed electrical contractor before performing any repairs or modifications to your home’s electrical system.