1. How much does it cost to clean the ducts in my home? We can provide a free online estimate. Count up the number of outlets and inlets in your home. Then go to the Online Estimate Page. 2. Is it safe? Will it make a mess? Power Vac using a truck-mounted, high-volume vacuum, assures you that nothing is discharged into your home. 3. Is it effective? Do you get everything out of the ducts? Short of removing the duct system and washing each piece individually, our system is the most effective at removing the accumulated dust and debris in your system. 4. How long does it take? An average home takes around 4 hours. We believe a good job can't be done in less time. 5. Can future contamination be avoided? Yes. With properly installed and maintained filters, your system should stay clean for many years to come. 6. How can I tell if my system is dirty? There are a few ways of determining this. Is there a great deal of dust in the air? Are there streaks of dirt on your outlet grilles? Is there a moldy or musty smell in you home?