Here’s something most homeowners don’t realize: you can have a brand new furnace and a perfect AC unit, and still have rooms that are too hot or too cold. The problem usually isn’t the equipment — it’s the ductwork. Your ducts are the highway system that delivers heated and cooled air to every room in your house, and if that highway has leaks, disconnections, or crushed sections, it doesn’t matter how good your HVAC equipment is.
We did a service call in Crown Point, IN, last year, where a homeowner had just spent $8,000 on a new high-efficiency furnace, but her back bedrooms were still freezing. The previous company never looked at the ducts. When we got into the crawlspace, we found a 6-inch flex duct that had completely separated from the trunk line. All that expensive heated air was blowing directly into the crawlspace. Twenty minutes of work and some mastic sealant, and those bedrooms were warm for the first time in years.
According to the Department of Energy, the average home loses 20-30% of conditioned air through duct leaks. In older homes around Crown Point and Lake of the Four Seasons — especially ones built in the 70s and 80s — we’ve measured losses as high as 40%. That’s nearly half your heating and cooling dollars going into your walls and ceilings.
If you’re experiencing severe airflow problems or a sudden loss of heating or cooling in part of your home, our team can diagnose the issue and prevent further strain on your HVAC system.
Most ductwork issues can be fixed with professional sealing. We use mastic sealant and metal tape (not the duct tape you buy at the hardware store — ironically, that stuff is terrible for actual ducts). We seal joints, connections, and any gaps or holes in the duct system. If sections of ductwork are crushed, rusted through, or insulation has deteriorated, those sections get replaced.
Full duct replacement is sometimes needed in homes where the original ductwork was poorly designed or where renovations changed the layout of the house, but nobody updated the duct system to match. We’ll always try the less expensive repair first and only recommend replacement when it’s genuinely needed.
Leaky ducts don’t just waste energy — they pull in dust, insulation fibers, and whatever else is floating around your crawlspace or attic. If anyone in your household deals with allergies or asthma, duct sealing can make a real difference in air quality.
Crown Point’s humidity levels fluctuate significantly between seasons. When ductwork runs through unconditioned spaces like crawlspaces or attics, leaks can pull in humid summer air or dry winter air, making your HVAC system work harder to maintain comfortable humidity levels indoors. Proper duct sealing helps your system control both temperature and moisture more effectively.
If duct damage is contributing to system failure during peak heating or cooling season, remember we provide 24/7 emergency services throughout Crown Point and Northwest Indiana to restore comfort quickly.
Call All American HVAC at 219-600-3120 to schedule a ductwork inspection. We serve Crown Point, Saint John, Cedar Lake, Lowell, Dyer, Schererville, Winfield, and Lake of the Four Seasons.
Think your ducts are leaking? Call 219-600-3120 for an inspection.
Common signs include uneven temperatures between rooms, high energy bills, dusty air when the system runs, and whistling or rattling noises from ductwork. We can perform a professional inspection to measure actual air loss.
You can seal accessible sections with proper mastic sealant and metal tape, but most leaks occur in areas homeowners can’t reach, like crawlspaces, attics, and inside walls. Professional duct sealing ensures all problem areas are addressed.
Costs vary based on the extent of damage and accessibility. Simple sealing of accessible joints is relatively inexpensive, while replacing sections of ductwork in hard-to-reach areas costs more. We provide upfront pricing after inspecting your system.
Yes. The Department of Energy estimates that homes lose 20-30% of conditioned air through duct leaks. Sealing those leaks means more heated and cooled air reaches your living spaces instead of heating or cooling your crawlspace.
Metal ductwork can last 20-30 years or longer if properly maintained. Flexible ductwork typically lasts 15-25 years. Ducts in unconditioned spaces may deteriorate faster due to temperature extremes and moisture exposure.
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