Leaks that heat rooms and raise the bill

Exactly what’s included

• check_circleA full duct pressure test or hands-on attic inspection to locate leaks before a drop of mastic goes on — we find them, we don't guess at them
• check_circleMastic sealant applied by hand at every joint, seam, and connection point — not tape alone, which peels in attic heat within a few years
• check_circleUL 181-rated foil tape over mastic on every accessible joint for a belt-and-suspenders seal built to outlast the ductwork it's on
• check_circleAir handler cabinet sealing — the largest single leak point in most systems is the cabinet itself, where return air bypasses the filter and pulls unconditioned attic air straight in
• check_circleAn airflow check at every register after sealing to confirm the rooms that were being short-changed are now receiving their full share

How the visit goes, step by step

1. 1
   Find the leaks — where is the air actually going?

   We pressurize the duct system and walk the attic. Leaks announce themselves: you can feel conditioned air moving at every gap, and on a July afternoon in a South Florida attic, the cool mist is visible against the heat. We map every problem point before we sell a single inch of mastic.

2. 2
   Seal every joint — mastic first, tape where accessible

   Mastic is a paste that stays flexible as the duct metal expands and contracts through the day. Tape alone fails at seams when the temperature swings forty degrees between the attic and the conditioned space below it. We use both on every accessible joint — no shortcuts where no one can see.

3. 3
   Seal the air handler cabinet

   Return air that bypasses the cabinet goes straight to the blower without being filtered or properly conditioned — and it pulls in heat and humidity from the attic in the process. Sealing the cabinet panels and the curb it sits on often makes a bigger difference than sealing any single duct joint.

4. 4
   Flow test at every register, then a full walk-through

   The room that was never comfortable should now be measurably different. We test every supply register, note the change, and walk you through the results. If a room still underperforms after sealing, we'll tell you honestly whether it's a duct-sizing issue, a distance problem, or something sealing alone can't fix — not every uncomfortable room has the same root cause.

Real South Florida examples

The kind of situations we handle every week.

What drives the price (and why)

• tuneTotal accessible duct length and attic configuration — a vented attic with standing room is faster than a flat roof with two feet of crawl space above the drywall
• tuneNumber of leak points — a system with a few failed collar joints is a different scope than one with original 1980s construction throughout the entire trunk and branch network
• tuneWhether any duct sections need reattachment or partial replacement before sealing — a flex section that has slipped off its collar has to be reconnected first, not just sealed over
• tuneCommercial versus residential: commercial systems with more trunk lines, branch takeoffs, and rooftop handlers require more time, materials, and coordination around business hours

You always see the price and approve it before we start. Site ranges are not bids.