How to Insulate Around Wall Outlets
Knowing how to insulate around the electrical outlets in your home can not only help to save energy but can also save you money by minimizing the loss of heat and air conditioning. The process is simplified by the availability of pre-insulated plates with gaskets already attached, or if you prefer, you can make your own foam inserts to attach to the backside of the existing plate, and you can use either traditional fiberglass insulation or spray-in insulation to fill in the holes around the outlet boxes. Does this Spark an idea?
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Things You'll Need
- Light or blow dryer
- Screwdriver
- Insulation
- Spray-in insulation
- Drywall compound
- Caulk
Instructions
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1
Shut off the power to the outlet. It is best to shut it off at the main panel. Use a small appliance (like a light or blow dryer) or a circuit tester to be sure the power is off.
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2
Remove the cover plate with a screwdriver. Inspect the area around the outlet box to assess whether or not you can add insulation.
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3
Insert small pieces of insulation (or foam) around the outlet box. You may need to push it in with a screwdriver to get it to fit. Be careful; do not force the insulation into the gaps, or you may damage interior wiring. You can also use expandable spray-in insulation if preferred. Never add insulation inside the outlet box (where the wires and outlet are).
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4
Check for cracks in the wall around the outlet. Patch with drywall compound, or apply a thin line of caulk in the crack or hole and smooth with a damp rag. (You may need to sand the drywall compound before reinstalling the plate.)
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5
Attach the pre-cut foam inserts or gaskets to the back of the cover plate (if the old cover will be reused). Affix as recommended by the manufacturer or, for self-made foam inserts, use a thin coat of basic white household glue such as Elmer's. Avoid the use of volatile glues.
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6
Reinstall the old cover plate or install a new pre-insulated one. Secure in place with the screw. Turn the power back on.
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Tips & Warnings
Pre-cut your own foam inserts before starting.
Consider insulating your wall switches as well.
Never work on an outlet unless you are sure the power is off.
Wear gloves and a mask if using regular insulation.
