Seal HVAC Duct Leaks

Why It Matters

Duct leaks waste conditioned air into unconditioned spaces, costing you hundreds annually and making rooms uncomfortable.

Quick Guide

1. 1

   Gather your tools and materials

   You'll need: Caulk gun, Paintbrush for mastic. Materials required: Mastic sealant or foil tape.

2. 2

   Perform the seal hvac duct leaks

   Apply mastic sealant or foil tape to visible duct joints and seams that show signs of air leakage. Safety note: Wear gloves when applying mastic.

3. 3

   Verify and clean up

   Check that the work was completed correctly and clean up your workspace. If if ducts are in hard-to-reach locations or extensively damaged, consider calling a professional.

Tools & Materials