With a Caller ID of Air Duct it has to be another air duct cleaning scam. Blocked

No doubt the same scumbag that was calling three months ago from 925-239-8124

12/22 called. No message left.

Called ID says only Walnut Creek. Air duct cleaning scam - claims to be reminding us that it's time for our annual cleaning. Even insisted I was wrong when I assured them they had never been here before. Our nephew put our system in 10 years ago and no outside company has ever serviced it, so these people are total liars. Avoid them like the plague.