Insured weatherization contractor. We air seal rigid duct work, supply and return, plus the air handler · Drill & Fill wall cavities, overhangs, floor bays and cantilevered floors with high density cellulose · We air seal: key junctures, knee walls, 1.5 story attics spaces, valances and dropped soffits, crawl space and basements, thermal bypasses in attics, triangular divot voids above 2nd story staircase, seal and insulate cathedral ceilings, ceiling beams · Member BGBG and GHI.