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Winter Mold Allergies: Why You Still Feel Sick Indoors

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Allergy season might be over, but mold is still in the air. Learn how indoor mold during the winter months could be the reason you feel sick year-round.

The leaves are gone, the pollen count is low, and you’ve closed all the windows for winter. So why are you still sneezing, coughing, or battling sinus pressure?

For many Augusta-area residents, winter isn’t a break from allergies—it’s just a shift in the cause. When you spend more time indoors and your home is sealed tight for warmth, mold can become your body’s biggest enemy.

Mold Doesn’t Take a Winter Vacation

Unlike pollen, which dies off in the cold, mold keeps growing year-round—especially inside your home. And because you’re inside more during the colder months, your exposure increases even if you don’t see any mold.

Winter conditions that support mold growth:

  • Less ventilation (closed windows and doors)
  • Condensation from heaters and humidifiers
  • Leaks from rooflines or windows after winter storms
  • Higher moisture levels in crawl spaces or attics
  • Warm air trapped in basements and behind walls

This creates the perfect setup for invisible mold to thrive in air ducts, behind drywall, or around water heaters and HVAC systems.

Common Winter Mold Allergy Symptoms

Mold allergies often mimic cold or flu symptoms, which is why so many people misdiagnose the cause. You might notice:

  • Stuffy nose or sinus pressure
  • Itchy, watery eyes
  • Sneezing or coughing
  • Shortness of breath
  • Skin irritation or rashes
  • Fatigue or brain fog

If your symptoms seem worse at home or in one specific room, that’s a strong indicator mold might be present—even if you can’t see it.

How to Know It’s Mold, Not Just Winter Dryness

Dry air can irritate your skin and nose, but it doesn’t cause allergic reactions or fatigue. If your symptoms get better when you leave the house, or worsen after turning on the heat, you may be breathing in airborne mold spores.

Mold likes to hide in:

  • HVAC vents and ductwork
  • Behind walls with plumbing
  • Under bathroom cabinets
  • Near windows with condensation
  • Inside attic insulation or crawl spaces

You won’t always smell it, and surface cleaners don’t reach airborne spores.

How EnviroPro 360 Can Help

At EnviroPro 360, we specialize in uncovering the hidden sources of mold and indoor air pollution. If you’re feeling sick and can’t find the reason, our team can help get to the root of the problem with:

  • Air quality and spore testing
  • HVAC system and duct inspections
  • Moisture detection in walls and floors
  • Post-remediation verification if cleanup has already been done

We serve Augusta, Evans, Aiken, and surrounding areas with same-day or 24-hour scheduling.

Don’t Stay Sick All Winter

Winter mold is sneaky. It hides where you don’t look and affects your health when you least expect it. If you’ve ruled out colds and pollen but still feel off, let us take a closer look.

Schedule a mold or air quality test with EnviroPro 360 today and start breathing easier this winter.

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