How to Store Holiday Decorations Without Attracting Pests

Protect your decorations by inspecting everything before storage, using sealed plastic containers instead of cardboard, keeping humidity below 50 percent, and closing any structural gaps wider than a quarter inch in attics, basements, or garages. In my years inspecting homes, those steps have prevented most rodent and insect activity that homeowners discover when they pull their decorations out the following season.

Holiday decorations sit untouched for long stretches, so they become predictable shelter for rodents and insects. Mice slip through quarter inch openings along rooflines or garage door seals, then settle into warm storage areas where cardboard and fabric supply easy nesting material. They also chew scented candles and anything with food residue, which explains why homeowners sometimes find smudges or gnawing on ornament boxes.

Silverfish focus on humidity. Damp basements and poorly ventilated attics let moisture settle into cardboard, paper ornaments, and old tissue paper, which gives these insects exactly what they need to feed and hide. Cockroaches use the folds and flutes of cardboard as long term harborage, and spiders build webs in the same conditions because undisturbed storage offers a reliable place to hunt.

Artificial greenery creates its own issues. Webbing or egg sacs often stay tucked into branch joints. When temperatures rise in spring, those eggs hatch unnoticed, and that is usually when people see unwanted insects drifting out of storage the next winter.

A short inspection reduces most of the problems I see in late fall. Homeowners often put everything away quickly, but even a deliberate sweep through each item makes a noticeable difference the next year.

Take artificial greenery outside and shake it so hidden insects fall away. Look at branch joints and wreath bases for silk threads or egg sacs. Check fabric items for irregular holes or fine debris that indicates clothes moths. Clean ornaments and watch for pepper like specks or small droppings that signal roaches or mice. Make sure each item is dry before you store it because trapped moisture leads to mold, booklice, and springtails.

Cardboard is the weak point in most storage rooms. It absorbs moisture and breaks down under attic heat, and rodents go through it with little effort. Sealed containers change the entire equation and fit well within Integrated Pest Management because you are eliminating access rather than reacting to pests after they arrive.

Hard sided plastic bins with locking lids are the most reliable option. Gasketed lids work well in humid basements because they keep moisture from entering. Clear bins help you monitor contents without repeatedly opening them. For ornament wrapping, acid free tissue or cotton cloth is the better choice since newspaper and old tissue paper soften in humidity and attract silverfish.

The space itself matters as much as the containers. IPM always starts with exclusion, sanitation, and environmental management, and a storage room follows the same logic.

Seal any opening a quarter inch wide or larger around pipes, vents, eaves, and sill plates. That standard comes straight from NPMA recommendations, and it holds up in the field. Keep humidity below 50 percent with a dehumidifier when needed, especially in older basements where moisture drifts in around foundation lines. Improve airflow and lighting so spiders and roaches have fewer quiet pockets to occupy. Clear clutter, elevate bins off the floor, and avoid stacking them against insulation.

Many homeowners tell me they cleaned the attic and still heard mice. The problem usually comes down to an overlooked entry point, often near the garage header or a small seam under the eaves. The moment temperatures drop, that is where rodents head first.

This approach also parallels guidance in the Pests.org resource Why Pests Invade Homes When Temperatures Drop which outlines how seasonal activity shifts insects and rodents indoors.

Wash and dry stockings, tree skirts, and soft ornaments so no organic residue remains. Clothes moths avoid clean and dry material stored in sealed containers, especially when humidity stays below 50 percent.

Rodents respond strongly to scent cues. Candles and wax melts trigger the same behavior I see with stored food, so place them in their own sealed bin away from textiles or delicate ornaments.

Food based décor always attracts pests. Extension services across the country give the same advice because mice, beetles, and pantry moths find these materials long after the holidays end.

Pack artificial greenery in sealed containers or heavy duty zippered bags. Secure loose glitter or flocking because those particles settle in the bottom of boxes and draw insects over time.

Avoid newspaper and aged tissue paper. They break down in storage and encourage silverfish. Use acid free tissue or cotton cloth for stable long term protection when you wrap fragile ornaments.

Twice a year works well: once in early fall and once before the decorating season. That timing lines up with rodent activity changes and humidity shifts in most of the country.

Look for droppings, gnaw marks, shredded insulation, or insect frass. Clean any glitter, wax, or potpourri residue on bins. Confirm humidity control devices are still functioning. Examine exterior access points whenever weather changes because wood expands and contracts around those areas.

Silverfish remain active anywhere humidity stays above 50 percent. If you continue finding them in bins, improve ventilation or add steady dehumidification.

Call a professional if you discover active rodent nesting, hear noises in attic spaces, or find cockroach activity in storage rooms. Structural vulnerabilities, such as failing soffits or gaps around sill plates, also warrant an inspection. Many homeowners pair annual maintenance with preventive exclusion, which keeps infestations from gaining momentum in older homes.

Similar prevention measures appear in the Pests.org guide How to Keep Rodents and Insects Away from Your Furnace which applies the same exclusion and sanitation principles to utility spaces.

Data placeholder: Pests.org’s 2024 homeowner survey found that 37 percent of respondents reported mouse activity in attic storage areas during winter.