if I had a dollar for every one of those duct cleaning advertisements I’ve seen online, I could afford to just get new ductwork installed every year...... must be way more complicated than my shop vac with a few extra hoses on it..up here 'air duct cleaning services' calls several times a year. Legit company,but the Do NOT CALL list means ,well, I shouldn't be called....OK after several 'not interesteds' I say sure, sounds great...they drive all the way from Toronto(1 hr) knock on door and I say ,sorry I'm not mr. jones......wasted fuel, time, guys, etc....they leave..hehehe.
2 months later same thing happens... you'd think THEY would block MY number....hehehe
I KNOW they'll be calling in May....hehehe....