Installing a Through-the-Wall Exhaust Fan

Exhaust fan

Here’s a question from our 7/6/2019 Today’s Homeowner Radio Show.

Kay in Colorado says, “My home was built in 1958. Vaulted ceilings, so no attic. I would like to have an exhaust fan installed in the bathroom.

The breaker box is outside of the bathroom window. What kind of contractor would I need to use? I would hope [the fan] would vent through the roof. I do have a small window above the tub, but I’m short, making it difficult for me to reach.”

We tell Kay to consider a through-the-wall exhaust fan. Kay could get in touch with an electrician to help install the fan.

Also, the addition of a humidistat would help her keep the hot and humid air out when it becomes too overbearing.

Listen above for the segment!

Read the blog from the July 6 show and listen to the full broadcast here


  1. I have the same exact situation in the downstairs in-law bathroom. Thinking about installing a thru-the-wall exhaust fan. Would this violate any building codes?

    • Hi, Susan,
      Our website reaches worldwide audiences, so it’s always important to check your local building code before attempting any project.
      This tip will come in handy for some folks, but you’re right: This will not be an option for others.
      If you live in the United States, contact your local building inspector for more information.
      Thanks for commenting!


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