How Much Are Leaky Ducts Costing You?
According to the U.S. Department of Energy, the typical home with a forced-air HVAC system loses 20–30% of its conditioned air through duct leaks. In Lake Buena Vista's extreme cooling climate — where you may run your AC 10–11 months a year — that's a massive ongoing expense. A home spending $250/month on cooling could be losing $50–$75 per month straight into the attic.
Beyond the financial cost, leaky ducts create uneven temperatures throughout the home, force your AC to run longer cycles (increasing wear), and can draw in attic air loaded with dust, insulation particles, and humidity — degrading your indoor air quality.
Warning Signs of Duct Leaks
- Hot spots or rooms that won't cool — especially bedrooms far from the air handler
- Uneven airflow — some vents blow strongly while others barely move air
- Higher than expected electric bills despite normal AC operation
- Dusty homes even with regular cleaning — attic dust is being drawn in through leaks
- AC runs constantly but never reaches the thermostat setpoint
- Visible disconnected or collapsed flex duct in the attic
- Musty or hot air smell from vents — attic air infiltrating the duct system
Ductwork Issues We Commonly Find in Central Florida Homes
Florida's attics are brutal environments — temperatures regularly exceed 130–150°F in summer. This extreme heat degrades duct materials faster than in any other climate. The most common ductwork problems we find in Lake Buena Vista-area homes include:
- Disconnected flex duct sections — flex duct joints pulled apart by animal activity, improper installation, or thermal expansion/contraction
- Collapsed or kinked flex duct — flexible ductwork that has sagged, kinked, or been walked on in the attic, restricting airflow
- Deteriorated duct tape — standard gray duct tape (ironically, not rated for HVAC use) fails in attic heat; proper mastic sealant is required
- Unsealed plenum connections — connections at the air handler where significant air loss occurs
- Undersized or poorly designed duct runs — original builder-grade duct systems that don't deliver adequate airflow to all areas of the home
- Damaged or missing duct insulation — bare duct metal in a 140°F attic absorbs massive heat before air reaches the vents
Our Ductwork Repair Services
We address ductwork issues comprehensively — not just patching symptoms but identifying the root cause and repairing it properly:
- Duct leak sealing with mastic — mastic is the industry standard for permanent, durable duct sealing. It remains flexible through thermal cycles and never cracks like tape
- Flex duct reconnection and securing — properly reconnecting and securing disconnected sections with approved clamps and mastic
- Flex duct section replacement — removing damaged, kinked, or deteriorated sections and installing new R-8 insulated flex duct
- Airflow rebalancing — adjusting dampers and duct sizing to improve even distribution throughout the home
- Full duct system replacement — when the existing duct layout is fundamentally flawed or ductwork is beyond economical repair
- Duct insulation upgrade — wrapping or replacing duct insulation to minimize heat gain in the attic
Pricing — Ductwork Repair & Sealing
Every ductwork repair quote includes an attic inspection to identify all issues upfront. We don't make multiple trips to bill additional work — we tell you everything that needs to be addressed in one honest assessment.