Air Duct Cleaning in Baton Rouge?

Will likely get better responses if you move this post to the Home & Garden board.

Flexible ducts or rigid? If flexible, the ducts are just replaced, not cleaned. Rigid ducts can be cleaned, but I don’t have a recommendation. But I’ll be following this post as I’d like to hear responses and recommendations from those that may have had their rigid ducts cleaned.

If I recall correctly one poster who was a career HVAC tech has stated if the rigid duct work is old, like 20+ years, in his opinion it might be better to replace it vs cleaning.