Wind-driven dust and grit in return trunks
Why it happens here
Hillcrest sits higher than most of American Fork, and the wind exposure here pushes fine grit through every gap in the duct system. Return trunks collect the most because they pull air from every room. Homes on the west side of the neighborhood see this worst.
Our approach
We run a duct inspection camera through the trunk first, then use a negative air machine and HEPA vacuum to pull the grit out. After cleaning, we seal the gaps with mastic and foil tape so the dust has fewer ways back in. That is why our Hillcrest cleanings last longer.