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How to Install a Dryer Vent That Keeps Out Pests

Cheap dryer vents with flimsy flaps break or clog up with lint and dirt, causing energy leaks and allowing access for pests. Keep them out with a dryer vent upgrade.

By the DIY experts of The Family Handyman Magazine

The new vent fits the same opening

A dryer vent with a loose or broken flapper invites drafts and mice into your house. And when clogged with lint, vents not only trap moist air but also become a fire hazard. Replace that old dryer vent with this sturdier unit that:

  • Allows easier outside access for vacuuming lint.
  • Provides a better seal to keep out vermin.
  • Saves energy by allowing waste dryer heat to radiate back into the house once the dryer’s cycle is complete.

The vent installs in 20 minutes (Photos 1 – 3). It’s available at home centers, hardware stores, and internet sites.

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Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

    • Cordless drill
    • Caulk gun
    • 4-in-1 screwdriver
    • Drill bit set
    • Shop vacuum

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

    • Dryer vent
    • Acrylic caulk
    • Galvanized screws

Comments from DIY Community Members

Share what's on your mind and see what other DIYers are thinking about.

1 - 9 of 9 comments
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September 16, 12:37 AM [GMT -5]

I have used this vent for many years works great. I saw it the other day at Minards

September 15, 11:59 PM [GMT -5]

recycle heat in winter but....what about summertime. dont think id want it then. is there something you can set/reset for that purpose?

June 07, 10:22 AM [GMT -5]

Interesting concept, the floating cup that obviously raises when the dryer is pushing warm air out, and otherwise settles down to keep unwanted things from getting into your house.

June 04, 2:25 PM [GMT -5]

You can find this dryer vent on Amazon. It's currently $15.49 with free shipping.


September 30, 10:11 AM [GMT -5]

It says these are available at local home improvement centers, etc.

Where? I don't see these anywhere


August 10, 5:40 PM [GMT -5]

Found one online and ordered it. It's a Lambro 289W Dryer Vent Closure.
Looking forward to installing it before winter. Hopefully, it will eliminate drafts and pest invasion as described. Will post comments after it's been in place for awhile.

August 10, 8:26 AM [GMT -5]

How much back pressure does this vent add to the dryer vent system?

August 09, 8:48 PM [GMT -5]

looks good but where can you find a vent like that.Nothing like that at my Home Depot or Lowes

June 07, 8:52 PM [GMT -5]

Looks like a good product.

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How to Install a Dryer Vent That Keeps Out Pests

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