Raleigh ductwork cleaning, sealing & repair
Need a ductwork cleaning, sealing & repair in Raleigh? You've got two real options: roll the dice on a Yelp listing, or call a shop that's been working in your zip code for a while. We're the second one. Most of our work comes from neighbors of past customers. That's the only marketing we trust.
Sample job
Last spring we got a call from a homeowner near the north Raleigh. Upstairs always 6-8° hotter than downstairs. Diagnosis: crushed flex duct in attic and 30% leakage. We replaced damaged section, sealed remaining ducts, added zone damper, temperature differential dropped to 1-2°, ran the test, and were out the door in under 90 minutes. Total: $496 including parts.
What this service includes
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.
Raleigh-area patterns we see
Older Raleigh neighborhoods often have galvanized service lines or clay sewer laterals from the original build. Different prep, different tools.
Most of our Raleigh ductwork cleaning, sealing & repair jobs come from older neighborhoods, where the housing stock just has more failure points.
Ballpark numbers
For ductwork cleaning, sealing & repair jobs in the Raleigh area:
- Duct leak test (blower door + duct blaster): $260 – $415
- Mastic duct sealing (whole house): $780 – $1,655
- Aeroseal injection: $1,290 – $2,575
- Damaged duct section replacement: $315 – $1,105
- Full duct system redesign + replace: $3,130 – $9,015