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If your air conditioner is running but the house still feels damp and sticky, the system is cooling the air without pulling enough moisture out of it. In Greater Houston, the cause we find most often is a system that was oversized by a previous installer. It cools the house so fast that it shuts off before it can wring the humidity out. The good news is that the fix usually starts with a few inexpensive checks, not a new system. At Spring Branch AC, we've been diagnosing humidity problems in Gulf Coast homes since 1956. Over those decades we've opened up plenty of systems that other companies wanted to replace, only to find the real issue was a clogged drain line, a low refrigerant charge, or equipment sized wrong for the home. This guide walks through what's actually causing the dampness, what you can check yourself, and when it's time to bring in a technician.

Why Is My House So Humid With the AC Running? (Houston, TX)

June 16, 2026/

If your air conditioner is running but the house still feels damp and sticky, the system is cooling the air...

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