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High Humidity in NJ Homes During Summer: HVAC Fixes That Work

If your home feels sticky even with the AC running, humidity is the problem. Here are the most effective HVAC fixes for North NJ homes.

April 21, 2026By Air2Cool Heating & Coolinghigh humidity NJ · indoor comfort · Morris County

If your home feels sticky even though the AC is on, humidity is the issue. In North NJ, older homes and basements hold moisture, and standard AC alone is not always enough.

Why humidity stays high

  • Oversized AC that cools too fast and shuts off
  • Dirty evaporator coil that cannot remove moisture
  • Leaky ductwork pulling humid air from attics or basements
  • No dedicated whole-home dehumidifier

What you can do

  • Replace the air filter and make sure airflow is strong
  • Schedule a professional tune-up to clean coils
  • Consider a whole-home dehumidifier for persistent issues

When to call Air2Cool

  • Indoor humidity stays above 55 percent
  • You see condensation on windows or ductwork
  • Mold or musty odors appear during summer

We can test humidity and recommend the right fix. Call (201) 787-5657 or request service.

Also see: Preventative Maintenance

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Air2Cool serves Morris County and North NJ. 24/7 emergency service, licensed and insured.