If you can hear the exhaust fan vibrating, they should be able to attach it with vibration isolation mounts. They’re not expensive.
If it’s the actual air movement that you hear, they could attach an exhaust silencer wherever it’s venting. The silencer might be a few feet long. If there isn’t room for that, they could also use an elbow silencer. Either option should be less than $1k.
dkm7093 t1_jdxqn4h wrote
Reply to Loud ventilation exhaust from restaurant - what can I do? by Playful_Statement_71
If you can hear the exhaust fan vibrating, they should be able to attach it with vibration isolation mounts. They’re not expensive.
If it’s the actual air movement that you hear, they could attach an exhaust silencer wherever it’s venting. The silencer might be a few feet long. If there isn’t room for that, they could also use an elbow silencer. Either option should be less than $1k.