How to Install Anti-Vibration Pads Under an Air Conditioner

Anti-vibration pads cut down on the noise that an air conditioning unit makes, as well as cushion the vibrations that the unit creates that resonate throughout the structure.
Slab- and rooftop-mounted air conditioners are often the guilty culprits behind the creation of structural vibration and noise throughout a house or building. Enlist the help of an assistant to install anti-vibration pads, and reduce the transfer of vibration from the air conditioning unit to the floors, walls and ceilings inside the structure.

Step 1

Lean a ladder against the exterior wall, and climb up onto the roof, or access the roof through an interior staircase, to reach the rooftop air conditioner, if necessary. Wipe the roof or slab surface around the condenser dry and clean, using a rag. The condenser is the part of the air conditioning unit that sits outside.

Step 2

Lift up one edge of the air conditioner's condenser unit, or instruct your assistant to do so. Place one anti-vibration pad underneath the raised corner. Lower the condenser edge so that it rests securely on the anti-vibration pad.

Step 3

Repeat this process on each of the four corners of the condenser.

Step 4

Push the condenser gently, to make sure it doesn't move and is stable upon the pads. Adjust the condenser edges, if necessary, so that they all sit securely atop the pads.

Things You Will Need

  • Ladder
  • Rag
  • 4 anti-vibration pads

About the Author

Christopher John has been a freelance journalist since 2003. He has written for regional newspapers such as "The Metro Forum" and the "West Tennessee Examiner." John has a Bachelor of Arts in journalism from Memphis State University.