Need a recommendation for for good but reasonable Central A/C company that can figure out what is causing 2 of my ducks to have a bad smell each year. It's not a dead animal, the smell is sort of an over pollinated bitter smell. My A/C guys have replaced the ducts each time this happens at the start of the season. I can not keep paying to have this done. The problem needs to be found and solved permanently. Hoping someone can come by tonight or tomorrow. Very upset right now. This has happened every season for the past 4 years with brand new unit and ducts. It affects two rooms only in the house. I'm in Huntington/ West Hills thank you.