A home electrical inspection checklist covers the service panel, wiring, outlets, switches, GFCI and AFCI protection, grounding, smoke alarms, and outdoor circuits. The goal is to find fire and shock risks before they cause harm.

This guide shows what to check, which signs matter, what you can safely do yourself, and when to call a licensed electrician.

What Should Be Included in a Home Electrical Inspection?

A home electrical inspection is a safety review of every part of the system that brings power into your house and spreads it to each room. A good inspection looks at the full path of electricity, from the utility meter to the last outlet.

A complete inspection includes:

  • Service entrance and meter: the point where utility power enters the home
  • Main service panel: breakers, fuses, labels, and signs of heat
  • Branch circuit wiring: the cables that feed outlets, lights, and appliances
  • Outlets and switches: condition, grounding, and correct wiring
  • Safety devices: GFCI outlets, AFCI breakers, and smoke and carbon monoxide alarms
  • Grounding and bonding: the paths that carry fault current away safely
  • Outdoor and garage circuits: weatherproof covers and moisture protection

Home Electrical Inspection Checklist: What to Look For

Use this checklist as a guide for each part of the home. The table lists what to check and what counts as a red flag.

Area

What to Check

Red Flag

Service panel

Breaker labels, panel cover, breaker size

Rust, burn marks, double-tapped breakers, missing labels

Wiring

Cable type and insulation condition

Cracked insulation, exposed copper, spliced wires outside a box

Outlets

Tight fit, grounding, cover plates

Loose plugs, warm plates, two prong outlets

Switches

Smooth action, no heat

Buzzing, hot switch plate, flickering

GFCI outlets

Test and reset buttons work

No trip when tested

AFCI breakers

Test button trips the breaker

No trip, or breaker missing in required rooms

Lighting

Fixture condition, bulb wattage

Scorched sockets, bulbs above the fixture rating

Smoke and CO alarms

Working on each level and near bedrooms

Dead battery, expired unit

Outdoor circuits

Weatherproof covers, GFCI protection

Cracked boxes, exposed wire

Extension cords

Used only for short term needs

Cords run under rugs or used as permanent wiring

Two terms help here.

A GFCI (ground fault circuit interrupter) cuts power fast when current leaks, which protects people from shock.

An AFCI (arc fault circuit interrupter) shuts off power when it detects a dangerous arc in damaged wiring, which helps prevent fires.

Signs of Electrical Problems to Look for During an Inspection

Some problems show up long before a failure. Watch for these warning signs:

  • Frequent tripped breakers or blown fuses. A circuit that trips often is overloaded or faulty.
  • Flickering or dimming lights. This can point to loose connections or an overloaded circuit.
  • Burning smell. A hot, plastic smell near an outlet or panel needs attention right away.
  • Warm or discolored outlets and switch plates. Heat means resistance, and resistance means risk.
  • Buzzing, humming, or crackling sounds. These often come from loose wires or arcing.
  • Mild shocks from outlets or appliances. This can mean poor grounding or a wiring fault.
  • Outlets that do not hold plugs. Worn contacts can overheat.
  • Aluminum or cloth covered wiring. Both are older types that need a professional review.

If you notice a burning smell, sparks, or smoke, turn off the power at the main breaker if it is safe to reach and call an electrician. For active smoke or fire, call emergency services.

Electrical Safety Checks Homeowners Can Do Themselves

You can do a basic walkthrough without opening any panel or touching wiring. Follow these steps:

1. Test GFCI outlets. Press the test button. The outlet should cut power. Press reset to restore it. Do this monthly.

2. Test smoke and CO alarms. Press the test button on every unit and replace batteries as needed.

3. Check every outlet and switch. Look for cracks, scorch marks, loose plates, and heat. Plugs should fit snugly.

4. Inspect cords and power strips. Replace any with frays, cuts, or bent prongs. Do not daisy chain power strips.

5. Check bulb wattage. Match each bulb to the fixture's maximum rating.

6. Look at the panel from the outside. Make sure the area is clear, and the breaker labels are easy to read.

7. Check outdoor outlets. Covers should close tightly, and the outlets should be GFCI protected.

8. Review appliance use. Space heaters, microwaves, and air fryers should not share a crowded circuit.

Safety note: Never remove the panel cover, touch bare wires, or open a wall box unless you are a trained electrician. Panels hold live parts even when the main breaker is off.

What Should a Professional Electrical Inspection Include?

A licensed electrician goes beyond what the eye can see. The inspection normally includes:

  • Removing the panel cover to check breaker size, wire gauge, connections, and signs of overheating
  • Measuring voltage at outlets and the panel with a multimeter
  • Testing every GFCI and AFCI device
  • Checking grounding and bonding at the panel and water pipes
  • Reviewing wiring in the attic, basement, crawl space, and garage
  • Confirming that circuit loads match the service size, such as 100 amp or 200 amp
  • Using tools like a circuit tracer or a thermal imaging camera to find hot spots
  • Comparing the work to the current National Electrical Code (NEC) and local rules

You should receive a written report that lists what passed, what needs repair, and which items are urgent. Ask for photos of any defects.

When Should You Get a Home Electrical Inspection?

The Electrical Safety Foundation International recommends inspections when you buy a home and when a home is more than 40 years old. Book an inspection in these cases:

  • Before buying or selling a house
  • After moving into a new home
  • When the home is 40 years old or more
  • After a major renovation or addition
  • After a flood, fire, or storm damage
  • When you add large loads, such as an EV charger, hot tub, or heat pump
  • When breakers trip often, lights flicker, or outlets feel warm
  • Before you renew or change a homeowner's insurance policy that asks for proof

How Much Does a Home Electrical Inspection Cost?

In the United States, most home electrical inspections fall between about $150 and $500. Pricing sources vary, and one national data set puts the typical range at $217 to $663 with an average near $389. Costs depend on where you live and how much the inspector needs to test.

Type of Inspection

Typical Cost

Electrical panel inspection

$109 to $228

Outdoor electrical system

$137 to $318

Whole house wiring inspection

$219 to $488

Full inspection of a large or older home

Often higher, so request a quote

What changes the price:

  • Home size and number of circuits
  • Age of the wiring and panel
  • Access to attic, crawl space, and basement
  • Extra testing, such as thermal imaging
  • Whether you want a written report for a sale or insurance

Repairs are a separate cost. Always ask what the quote covers before you book.

What Happens If an Electrical Inspection Finds a Problem?

A failed item does not always mean a big bill. Here is what usually happens:

1. You get a report. The inspector sorts findings by urgency, such as safety hazards, code issues, and minor fixes.

2. Urgent hazards come first. Items like scorched wiring, a faulty panel, or missing grounding should be fixed quickly.

3. You get repair quotes. Ask for written estimates from licensed electricians. Compare scope, not only price.

4. A permit may be needed. Panel upgrades, new circuits, and rewiring often require permits and a follow up check by the local authority.

5. You schedule a re inspection. After repairs, confirm the work passed.

If you are buying a home, use the report to ask the seller for repairs or a price credit.

DIY Electrical Inspection vs. Professional Inspection

A homeowner walkthrough helps you catch obvious issues between visits. It cannot replace a professional review, because most defects hide behind walls and inside panels.

Factor

DIY Check

Professional Inspection

Cost

Low, often a few dollars for a tester

Typically $150 to $500

Scope

Visible items only

Panel, wiring, grounding, and load review

Tools

Outlet tester, eyes, ears

Multimeter, circuit tracer, thermal camera

Code review

No

Yes

Written report

No

Yes

Risk

Shock if you open panels or boxes

Handled by a trained, licensed worker

Use both. Do a simple check every few months, and hire a professional for a full review at the right times.

Common Electrical Inspection Issues in Older Homes

Older houses were built for lighter power use. Today, homes run computers, large appliances, and chargers all day. These are the problems inspectors find most often:

Issue

Why It Matters

Knob and tube wiring

Found in homes built before the 1950s. The cloth insulation wears out and can overheat when covered by attic insulation.

Aluminum branch wiring

Used in some homes from the 1960s and 1970s. Connections can loosen and overheat.

Fuse boxes

Often too small for modern loads, and people sometimes use a larger fuse than the circuit allows.

Two prong outlets

No ground path, so surge protection and shock protection suffer.

Known problem panels

Some older brands, such as Federal Pacific and Zinsco panels, have a record of breakers that fail to trip.

Undersized service

A 60 amp or 100 amp service may not handle a modern home.

Overloaded circuits

Too many devices on one old circuit leads to tripping and heat.

Missing GFCI and AFCI protection

Older homes often lack the protection that current code requires.

Many of these are not an emergency on day one, but they raise risk over time. An electrician can tell you what to fix now and what to plan for later.

Home Electrical Inspection Checklist Before Buying a House

Order an electrical inspection during the due diligence window, along with the general home inspection. Use this list:

  • Ask for the age of the home, panel, and any rewiring, and request permits for past electrical work
  • Confirm the service size fits the home and your expected use
  • Check the panel brand, age, and condition for scorching, rust, and double tapped breakers
  • Look for visible wiring types, such as cloth covered, knob and tube, or aluminum
  • Test GFCI outlets in kitchens, bathrooms, garages, basements, and outdoors
  • Check for AFCI protection in bedrooms and living areas, where required
  • Count outlets per room and look for extension cords used as permanent wiring
  • Review smoke and CO alarms on every level
  • Inspect the attic, basement, and crawl space for loose or unprotected wiring
  • Check any detached garage, shed, pool, or hot tub circuits
  • Get a written report and repair estimates before you close

If the report finds major issues, you can negotiate repairs, ask for a credit, or walk away within your contract terms.

Final Thoughts

A home electrical inspection checklist helps you spot warning signs early and plan repairs before they become dangers. Check outlets, alarms, and GFCI devices on your own every few months. Hire a licensed electrician when you buy a home, when the house is over 40 years old, or when you notice heat, buzzing, or frequent tripped breakers. A small inspection fee can prevent costly damage and protect your family.

FAQs

How Long Does A Home Electrical Inspection Take?

Most inspections take one to three hours. Larger or older homes, or those with several panels, can take longer.

Do I Need To Be Home During The Inspection?

It helps. The electrician may need access to rooms, the attic, and the panel, and you can ask questions about the findings on the spot.

How Often Should A Home Electrical System Be Inspected?

Inspect when you buy a home, when the home is over 40 years old, and after major work or storm damage. Some experts suggest a check every 10 years for older homes.

What Is The Difference Between A Home Inspection And An Electrical Inspection?

A general home inspector reviews the whole house, including a basic look at the electrical system. An electrical inspection is done by a licensed electrician and goes deeper into the panel, wiring, and code compliance.

Can I Fail An Electrical Inspection?

Yes. An inspection fails when it finds code violations or safety hazards, such as missing GFCI protection or damaged wiring. You fix the issues and schedule a re inspection.

Is A Home Electrical Inspection Required When Selling A House?

Requirements depend on your state, city, and the buyer's contract. Many sales do not require one, but buyers often ask for it. Check local rules with your agent.

What Are The Most Common Causes Of Electrical Fires In Homes?

Common causes include overloaded circuits, damaged or old wiring, loose connections, faulty outlets, and misused extension cords or space heaters.

Does Homeowner's Insurance Cover Electrical Repairs?

Policies often cover sudden damage, such as a fire, but not wear and tear or code upgrades. Read your policy and ask your insurer.

Should I Upgrade My Panel After An Inspection?

Upgrade if the panel is a known problem model, shows damage, or cannot handle your load. An electrician can size a new panel and handle permits.