Home Repair Decoded

Are GFCI Outlets Required in a Garage?

Short answerUnder the National Electrical Code, garage receptacles have required GFCI protection since 1978, according to CPSC. The code typically applies only to new construction and major renovations, so an older garage may not have them. NFPA says your home should have them in the garage anyway. Local codes can differ, so ask an electrician.

What this costs

Our national estimates, not quotes.
OptionJobLowHigh
ReplaceOutlet Replacement$100$330

When each location was added

CPSC's fact sheet, Pub. 099 from September 2010, lists these National Electrical Code dates. Its list stops at 2005, and later code editions may add locations. Your home may have been built before them.

What it means for your house

CPSC says the code typically applies only to new construction and major renovations, so we read that as generally not forcing you to update an older garage on its own. Still, NFPA's safety checklist says your home should have GFCIs in the garage. Local adoption varies, and we didn't read later code editions, so your electrician or building department can tell you what applies.

How to tell if you have them

NC State Extension says to look for test and reset buttons on the outlet face, and that GFCI breakers are labeled at the panel. CPSC says a GFCI breaker protects every outlet on the circuit it supplies, so a plain outlet may be protected too. CPSC says to test at least monthly.

Adding one

A qualified electrician can add GFCI protection, says CPSC. If you'll be running a freezer or a garage door opener, we recommend asking about it, because we expect an unexpected trip could leave you with a spoiled freezer. We didn't find an official rule on that for every code edition.

GFCI Won't Reset? Why It Happens and What to Do

Common questions

Do I need GFCI outlets in my kitchen or bathroom?
CPSC lists bathrooms since 1975 and kitchens since 1987 in the code. Older homes may not have them, but NFPA says your home should have them in both places.
Does a garage door opener outlet need a GFCI?
Code treatment has changed by edition, and we didn't confirm it for yours. Ask a licensed electrician or your building department.

Related questions

Last verified 2026-11-04

Sources

General information, not professional advice. Conditions, codes and prices vary. Turn off power, gas or water before any work, and hire a licensed professional when in doubt. Cost figures are our estimates, not quotes.