Ductwork Cleaning, Sealing & Repair in Los Angeles, CA
When something goes wrong with your ductwork cleaning, sealing & repair in Los Angeles, you need someone who can be there fast. Most of our work comes from neighbors of past customers. That's the only marketing we trust.
Talk to a tech: (800) 555-3072
Sample job
Property manager call, Los Angeles-area duplex. Both units had upstairs always 6-8° hotter than downstairs. We pulled the system apart and found crushed flex duct in attic and 30% leakage. Replaced damaged section, sealed remaining ducts, added zone damper, temperature differential dropped to 1-2° on the same trip — both tenants happy. $275.
Scope of work
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.
Local context for Los Angeles
From downtown Los Angeles to the outer subdivisions, we cover the metro on standard pricing. No travel surcharge inside the service radius.
Most of our Los Angeles ductwork cleaning, sealing & repair jobs come from older neighborhoods, where the housing stock just has more failure points.
Typical investment
For ductwork cleaning, sealing & repair jobs in the Los Angeles area:
- Duct leak test (blower door + duct blaster): $350 – $560
- Mastic duct sealing (whole house): $1,060 – $2,250
- Aeroseal injection: $1,750 – $3,500
- Damaged duct section replacement: $425 – $1,500
- Full duct system redesign + replace: $4,250 – $12,250