FairangeSmall electrical fixes: what you can check, and when to call an electrician
Electrical work is different from plumbing: a mistake doesn't drip, it shocks or starts a fire. The Electrical Safety Foundation (ESFI) recommends having a qualified electrician do electrical work in the home. So this page sticks to the checks anyone can do safely, and when to stop and call someone. Prices come from our full guides.
When you do anything at a switch or outlet, ESFI's workbook says to turn off the breaker first and test the wires before you touch them. (ESFI electrical safety workbook (PDF))
GFCI Outlet Installation
Try it yourself: Test GFCIs monthly: ESFI, how to use and test GFCIs says to press RESET, plug in a nightlight, press TEST (the light should go off), then RESET again. Also check for a tripped GFCI elsewhere on the circuit, often in a bathroom or garage.
Call a electrician if: It won't reset, or the light stays on after TEST. ESFI says a GFCI that fails the test should be replaced.
If you hire it out: $40–$306 across the US, midpoint near $102. Full cost guide · Price it for your ZIP
Outlet / Receptacle Installation
Try it yourself: If an outlet is dead, check the breaker panel and any GFCI upstream first. ESFI's workbook explains resetting a tripped breaker: switch it fully off, then on.
Call a electrician if: The breaker trips again, the outlet is warm or scorched, or you smell burning. Those need an electrician, not a reset.
If you hire it out: $46–$511 across the US, midpoint near $161. Full cost guide · Price it for your ZIP
Ceiling Light Fixture Installation
Try it yourself: Flicker on one fixture is often the bulb. Try a new bulb rated for the fixture (and for the dimmer, if there is one).
Call a electrician if: Several lights flicker at once, the fixture is heavy, or there's no ceiling box rated for it.
If you hire it out: $56–$491 across the US, midpoint near $161. Full cost guide · Price it for your ZIP
Dimmer Switch Installation
Try it yourself: Buzzing or flicker with LED bulbs often means the dimmer and bulbs aren't a good match. Check the dimmer maker's compatible bulb list.
Call a electrician if: It's a 3-way circuit, there's no neutral in the box, or the switch plate is hot.
If you hire it out: $45–$391 across the US, midpoint near $132. Full cost guide · Price it for your ZIP
Ceiling Fan Installation
Try it yourself: A wobbly fan usually needs its blade screws tightened or a balancing kit.
Call a electrician if: You're putting a fan where there was only a light. The box has to be rated to hold a fan.
If you hire it out: $117–$822 across the US, midpoint near $343. Full cost guide · Price it for your ZIP
Smoke / CO Detector Installation (multi-unit)
Try it yourself: The U.S. Fire Administration, smoke alarms says to test smoke alarms monthly and replace the whole alarm every 10 years. A chirp usually means a low battery.
Call a electrician if: The alarms are hardwired and interconnected, or you're adding new ones that need wiring.
If you hire it out: $162–$987 across the US, midpoint near $413. Full cost guide · Price it for your ZIP
Sources: ESFI, how to use and test GFCIs · ESFI electrical safety workbook (PDF) · U.S. Fire Administration, smoke alarms. Prices are the national ranges from our guides (BLS OEWS May 2025 wages and cited parts prices). Fairange does not book contractors or sell parts.