Duct Cleaning & Sealing in North Miami, FL. Three Free Quotes from Vetted Pros.

Common duct cleaning & sealing issues in North Miami

• Disconnected flex ducts in 1970s Pinecrest attics after rodent activity or A/C tech traffic on rafters.
• Compressed flex runs in low-clearance Hialeah hip-roof attics, dropping CFM 25 to 40 percent below design.
• Rusted metal trunk seams in 1960s Coral Gables homes leaking conditioned air into the attic.
• In North Miami specifically, oleta river salt intrusion plus tidal flooding in 33181 mean condenser pads should sit on a minimum 8-inch raised concrete plinth or a galvanized hurricane stand, and that pattern shapes how duct cleaning & sealing calls get scoped and which contractors fit the work.

How we vet Duct Cleaning & Sealing pros in North Miami

Our 5-step screening for Duct Cleaning & Sealing contractors serving North Miami, FL. This is the bar a HVAC pro has to clear before we route any quote request to them in North Miami.

1. 1

   Verify the Florida CMC license at the state source

   Pull the contractor's Florida CMC number and verify it's active and qualifier-matched at the state licensing portal. Any pro routing quotes to North Miami (33161) must carry an active license; a lapsed or qualifier-mismatched license is the single most common red flag we filter at intake.

2. 2

   Pull a current Certificate of Insurance

   Ask for a COI naming you as Certificate Holder, with $1M general liability minimum. The COI must be emailed by the agent directly, not a photo of a card. We refresh COIs annually for every HVAC pro on our network serving Keystone Point and Sans Souci Estates.

3. 3

   Read Google reviews, filter for the last 12 months

   4.5 stars with 50+ reviews is the floor we use. Filter for reviews mentioning North Miami or nearby Sans Souci Estates so you see the recent local pattern, not a 5-year-old reputation from elsewhere in the metro. Patterns of "didn't return calls" or "left job unfinished" across 3+ reviews predict the same outcome.

4. 4

   Confirm trade-specific certifications for Duct Cleaning & Sealing

   EPA Section 608 Universal for refrigerant, NATE Core for diagnostics. R-454B handling certifications are increasingly relevant as 2025 systems ship. A pro working North Miami routes who can't name their certifications by acronym usually doesn't carry them.

5. 5

   Verify permit-pull history in North Miami

   Every HVAC job over the local trigger threshold requires a permit. Miami-Dade County publishes residential permit pulls in its open-data portal; cross-reference the contractor against pulls near FIU Biscayne Bay Campus. A pro with zero permits pulled in the 33168 corridor over the last 90 days is likely skipping them, which costs you on resale and insurance claims.

The full 9-point vetting methodology lives at vetting-standards.

Pricing context for North Miami

$485–$4,200

Duct cleaning $485 to $980 for typical 1,500 to 2,200 sq ft home. Aeroseal duct sealing $1,800 to $3,200. Combined cleaning plus Aeroseal package $2,400 to $4,200.