If you've ever noticed cold air leaks while plugging something in, it might be time to insulate outlets in your home. Both electrical outlets and light switches have the potential for air leakage if not properly sealed. While the amount of air seems tiny, it can definitely add up on your energy bills.
If you’ve taken off the cover plate on the outlet switch, you've probably noticed a space in the wall where you can store a power outlet. This unused space in the exterior wall lets the airflow in from the outside with or without the cover plate attached.
One solution to leaky outlets is to use foam gaskets. These gaskets fit underneath the cover plate and extend beyond the edges to prevent airflow. Some homeowners use spray foam insulation as an alternative to gaskets.
Whether you choose spray foam or a foam outlet gasket, this is a common and affordable way to seal the gaps.
While foam does make a difference, the most efficient way to prevent warm air from moving in or out of your walls is to also seal the junction box. You can do this by using spray foam inside the empty spot behind the cover plate. Make sure to use non-expanding foam, as expanding foam can be a fire hazard.
This is only a basic guide to air seal electrical boxes at home. Always turn off the power before tinkering with your outlets, and consult a licensed electrician for guidance.
I grew up in a small town in Wyoming and married my high school sweetheart. I purchased my first home when I was 18 and immediately found a passion for real estate. One year later, I passed the Wyoming Real Estate Exam, and successfully purchased my second property! I love to help people navigate the real estate process and connect with my customers to help them achieve their real estate goals! With more than 25 years of experience in the industry – including residential, commercial, timeshare sales, and property management: I thrive on new opportunities to assist Buyers and Sellers. When not listing a property or negotiating an offer, you may find me on the beach enjoying some "Salt Life", volunteering at my child's school, and helping out in the community. Finally, I am proud to sit on the board of directors of a dedicated 501c3 foundation & help veterans, active service members, & first responders find relief from PTSD through scuba diving.
