Washington ductwork cleaning, sealing & repair
Most Washington ductwork cleaning, sealing & repair jobs we see fall into 3 or 4 categories — common stuff, common fixes. Less of a mystery than the marketing makes it seem. If we can't get to you ourselves, we'll tell you who to call. Free consult either way.
What we cover
Most homes have leaky ducts losing 20-30% of conditioned air to attics and crawl spaces. Sealing the duct system is the highest-ROI HVAC improvement most homeowners can make.
We test ducts with a blower door + duct blaster, identify leaks, and seal them with mastic (better than tape long-term) or aeroseal injection.
Full duct replacement is rare — only on systems with collapsed flex-duct, severe pest damage, or major redesign needs. More common: targeted replacement of damaged sections plus sealing of the rest.
Typical investment
Duct leak test (blower door + duct blaster) runs $350 – $560. Mastic duct sealing (whole house) runs $1,060 – $2,250. Aeroseal injection runs $1,750 – $3,500. Damaged duct section replacement runs $425 – $1,500. Full duct system redesign + replace runs $4,250 – $12,250.
What's specific about Washington jobs
Washington's housing market has us seeing a lot of move-in inspections and "the previous owner did what?" calls. We sort them out.