How To Seal Ac Window Gap

Once you ve made your choice on what product will give the best result for you you can head on over to the hardware store and pick it up.

How to seal ac window gap. Most window air conditioners come with an accordion style flap attached to the sides to fill the open space. Step 3 examine the sash. For installation duct tape will work well and duct tape comes in a variety of colors. If the gap is deep you may need to press two pieces into the gap to fill it completely.

To fix this purchase some air conditioner foam seal at your local hardware store if there isn t any with your unit. Even extremely small gaps can leak air which reduces the efficiency of your air conditioner. Re close the window tightly. This will prevent air from flowing through the.

Then lift the window and place the seal under the lip of the window. Narrow or hard to reach gaps measure the length of gaps that are 1 8 inch thick or smaller. Press the caulk into the gap. Most window air conditioners have an expanding curtain on either side to help seal any gaps between the window frame and the air conditioner but sometimes this seal isn t perfect.

If you don t want duct tape to leave residue on your window you can put down a layer of blue masking tape to protect the surface and then duct tape to that. Tear off a length of rope caulk to match.