Cost to Install a Duct Fan – 2021

| Last Updated: August 23, 2021

National Average Improvement and Repair Cost







$ 228

$ 78

Would you do this project? According to our survey, 69% of respondents preferred DIY compared to hiring a pro.

The average price to Install a Duct Fan noted above is cost data to compare a contractor’s estimate with doing it yourself.

How much does it cost to install a duct fan? The contractor cost to install a duct fan is $225 vs. doing it yourself for $78. 

What’s a duct fan, you ask? It’s a booster that works with your central heating and cooling system that draws additional air to problem areas in your house. The fan delivers warm or cool air where you need it, which is particularly useful in rooms where circulation is poor.

Since it improves the air from a central system, the fan is an alternative to adding a space heater in the winter or a window unit in the summer. By keeping a room comfortable longer, you’re conserving energy and making the most of your central system.

The unit uses two low-voltage fans to pull air out of the duct and into the room, making it a more comfortable environment. The unit needs to be near an outlet and plugged in to operate, and it requires some adjusting at the control panel in the center of the device. The fan comes in several sizes and is designed to slide into the existing vent opening in the floor or wall.

A handyman will install a 4-by-12-inch duct fan for $225, which includes the cost of the unit and installation. You can buy the fan at and install it for $78, the cost of the unit, and save 65 percent. Even if you’re new to doing it yourself, this is a no-brainer that you can easily accomplish.

The bottom line: compare the price of a contractor’s bid to install a duct fan with what it costs to do it yourself and make your decision.

Welcome! We hope you’ll find the job costs of home improvement projects useful when you’re deciding whether to do a job yourself vs. hire a contractor. We’re the authors of 20 home improvement books, most notably Home Improvement for Dummies©, Bathroom Remodeling for Dummies©, Carpentry for Dummies©, Plumbing for Dummies©, and Painting and Wallpapering for Dummies©. Our most recent book Fix It and Flip It is in its second edition. We’ve appeared as home improvement experts on television programs such as CNN, Dateline, the Today Show, HGTV and many others.