Indoor air quality
Help your home breathe better.
Start with moisture, air flow, and the source of the problem.
Your questions, answered
Why is my house humid?
Water leaks, poor air flow, and equipment issues can add moisture. Tell a pro where and when you notice it. Fix the cause rather than covering it up.
What do filters do?
Filters catch some particles. Ask which filter fits your system and how often to check it. A filter alone does not fix a water leak or a mold problem.
Who evaluates moisture or mold concerns?
An HVAC pro can check the HVAC system. In Texas, mold assessment and mold cleanup have separate regulated roles. Use the Texas verification guide to check the right role. Routine mold testing is not always needed.
Your next three steps
1Look for a leak or moisture source.
2Ask which kind of professional you need.
3Check the right Texas credential.
Editorial guidance · Updated October 12, 2026 · Sources & scope