What does professional air sealing actually do?
Air sealing services in Chico identify and close hidden gaps in your attic, crawl space, and walls where outside air enters and conditioned air escapes — most single-family homes are sealed in one day using spray foam, caulk, and rigid foam materials applied at penetrations, rim joists, and the attic floor.
Most homeowners do not realize how much air moves through gaps they never see — around electrical outlets, along the tops of walls, and where pipes and wires pass through ceilings. These gaps force your HVAC system to run longer cycles and can allow wildfire smoke to infiltrate even when every window and door is shut.
Air sealing works best when combined with insulation. Think of it this way: insulation is the blanket, and air sealing is what closes the holes in it. For Chico homes with existing attic insulation that still runs high energy bills, unsealed air gaps are usually the reason — and addressing them is often the highest-return improvement available.