4 Creative Ways to Reduce HVAC Noise at Home

June 17, 2022
Soundproof HVAC in Marion, NC

Besides playing a critical role in your home, the HVAC system has noise challenges. It’s common for the heating unit to carry the noise from one room to another. Ductwork and vents are the paths that noise travels in your house. However, with the following HVAC soundproofing strategies, you can enjoy your silence and a good night’s sleep.

1. Line Ductwork Interiors

Lining the interior of the ductwork with acoustical insulation is an effective way to muffle the noise that comes from the HVAC system. The most common type of material used for this project is fiberglass, which is available in pre-cut lengths that make it easy to install. Remember, ductwork is typically made of metal, so you’ll need to use a brush or roller designed for this type of surface. Next, apply the acoustic insulation to the ductwork starting at the furthest point from the furnace.

2. Seal Ductwork Connections

Sealing the connections between pieces of ductwork is essential for keeping noise from escaping. You can use mastic, which is a sticky, tar-like substance, or foil tape to make the seals. Apply the mastic or foil tape around the joints and seams, being sure to smooth it out, so there are no air gaps. This will help to reflect sound into the ductwork and prevent it from entering your living space.

3. Install Sound Dampening Fans

Your HVAC system likely has several fans that help to circulate air throughout the ductwork. These fans can be a source of noise, so it’s essential to ensure they’re properly insulated. You can purchase sound-dampening covers for the fans or insulation specifically designed for this purpose. Follow the manufacturer’s instructions for installation, being careful not to damage the fan blades.

4. Install a Sound Barrier Fence

If the outdoor unit of your HVAC system is located close to your property line, you may want to consider installing a sound barrier fence. This can be a simple wood fence or a more elaborate metal one. The important thing is that it’s tall enough and dense enough to deflect noise away from your property.


Excessive HVAC noise can have some irritating effects and may lead to a poor night’s sleep. That’s why you need to work with us for HVAC soundproofing services. We offer a full range of heating and air services, including installation, maintenance, and repairs. Contact Morris Heating & Cooling for more information.