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How to Check for Mold Growth On Seasonal Decorations

When it’s time to unpack your seasonal decorations, take a moment to inspect them for mold. Many homeowners store décor in basements, garages, or attics – spaces where moisture and humidity can easily lead to mold growth. Checking for signs of mold before bringing these items indoors helps protect your home and indoor air quality.

It’s very important to note that mold removal is not a DIY job. Please do not attempt to clean mold yourself; this includes using bleach to try to remove it. DAI Restore’s licensed and certified staff of technicians are trained to follow industry guidelines for safe and effective mold remediation.

1. Inspect Items Before Bringing Them Inside

Start by opening boxes outdoors or in a well-ventilated area. Avoid unpacking indoors and inspect your decor for:

  • Fuzzy white, green, or black spots on fabric or cardboard
  • Discoloration or stains on ornaments, wreaths, or garland
  • Warped wood or musty residue on surfaces

If you find visible mold, do not clean and reuse the item. It’s safest to dispose of it to prevent spores from spreading. Mold remediation requires controlled cleaning and a professional plan to stop cross-contamination.

2. Smell for Musty Odors

Mold doesn’t always appear visually. A musty or earthy smell is a strong indicator that mold is present in your storage container or on your decorations. If you notice an odor, check each item carefully and discard anything that seems affected.

3. Check the Storage Environment

The condition of your storage space can reveal how easily mold might develop. Inspect your space for:

  • Moisture or leaks, especially in basements, attics, or garages
  • Condensation on walls or storage bins
  • Humidity levels above 60%

Pro tip: Use airtight plastic bins instead of cardboard boxes, and consider adding desiccant packs or using a dehumidifier to control moisture. Proper storage is key to preventing mold growth.

The image shows the interior of a wooden structure, with visible beams and joists and a surface that appears to be heavily stained and discolored.

4. Clean Before Displaying

Before decorating, wipe down items with a mild detergent and warm water. For fabric decor, use a HEPA-filter vacuum to remove dust, spores, and allergens that can build up during storage.

5. Call a Professional for Mold Concerns

If you find mold growth in your home, or if your basement or attic has a persistent musty odor, contact a certified mold remediation company. Professional inspection ensures that hidden mold is located and safely removed.


DAI Restore provides mold inspection and remediation services in Rhode Island, Southern Massachusetts, and Eastern Connecticut. Our team identifies the source of moisture, removes mold at the root, and helps prevent it from coming back. If you suspect mold in your home or storage areas, schedule a professional mold inspection with DAI Restore. Call us today! 

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