High Energy Bills from Duct Leaks - Clean Air Miami

High Energy Bills from Duct Leaks

Part of our Aeroseal Duct Sealing services

If your Florida energy bills keep climbing despite a working AC, leaky ductwork is often the culprit. The average home loses about 20–30% of conditioned air through duct leaks—air you’ve paid to cool that escapes into the attic before reaching living spaces. Clean Air Miami quantifies leakage with testing, then uses Aeroseal to seal ducts from the inside so you see verified before-and-after results—not a vague “your ducts might be leaky” sales pitch.

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Warning Signs

  • Energy bills steadily increasing over time
  • AC runs constantly but house stays warm
  • Some rooms never get comfortable
  • Higher bills than similar-sized neighbor homes
  • Utility company reports higher-than-average usage
  • AC system seems to work harder than it should
  • Visible dust around supply vents
  • Hot attic air smell when the system runs

Common Causes

  • Gaps and disconnections at duct joints
  • Deteriorated duct tape or mastic sealant
  • Rodent or pest damage to flex duct
  • Poor original installation with unsealed connections
  • Ducts damaged during other home repairs
  • Age-related degradation of duct materials

Why Immediate Action Matters

Every dollar of conditioned air that leaks into your attic is wasted money—and in Florida, cooling is a major share of home energy costs. A 25% duct leak rate means you’re effectively paying to cool the attic. Aeroseal typically reduces measurable duct leakage by up to about 90% when leaks are accessible to the sealant process.

Our Approach to High Energy Bills from Duct Leaks

We perform duct leakage testing to show how much air your system loses, then seal leaks from the inside with Aeroseal—usually without tearing open walls or ceilings. Decision guide: (1) High bills + uneven rooms → leak test first; (2) Confirmed high leakage → Aeroseal with before/after report; (3) Bills high but ducts seal well → look at insulation, thermostat strategy, or equipment sizing (we’ll say so); (4) Musty ducts or allergy flare when AC runs → pair energy work with mold/IAQ assessment. You get numbers and next steps, not a one-size upsell.

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