Symptoms
- Visible gap between the wall and the edge of the switch or outlet plate
- Cracking in the drywall right at the corners of the plate
- Draft felt around the outlet in cold weather
Likely causes
- CommonStandard plate too small for an oversized cutoutOutlet boxes aren't always cut perfectly, leaving a visible gap under a standard cover.
- CommonMinor drywall cracking from installation stressCutting the drywall opening can create small stress cracks at the corners.
- PossibleWall insulation missing behind the boxExterior wall outlets without insulation behind them often feel drafty.
What to do
- Turn off power to the outlet or switch at the breaker before removing the cover plate.
- Check the size of the gap and whether a larger cover plate would hide it.
- For small cracks, apply a bit of spackle around the box opening and let dry.
- Sand smooth and touch up paint if needed.
- Replace with an oversized or padded gasket cover plate if the gap is wide.
- For drafts, add a foam outlet gasket behind the cover plate.
- Turn power back on and confirm the outlet or switch works normally.
Tools and parts
- Screwdriver
- Putty knife
Oversized cover plateSearch: “oversized outlet switch cover plate”
Outlet foam gasketSearch: “outlet draft gasket foam”
When to call a pro
Call an electrician if the gap reveals loose wiring or the outlet box itself is not securely mounted.
Safety
Use caution
Always turn off power at the breaker before removing an outlet or switch cover plate.