Using Self-storage? Tips To Avoid Potential Moisture Damage

Moisture is one of the biggest threats to your stored items, especially in coastal areas like Capitola, CA, where humidity can sneak in year-round. If you’re using self-storage, whether for household belongings, business inventory, or seasonal gear—protecting against water damage is a must.

At JD Mini Storage, we know how important it is to keep your items safe and dry. That’s why we’ve put together this guide packed with self-storage tips to help you avoid common moisture problems.

Step 1: Choose the Right Self-storage Unit

If you haven’t rented your unit yet, this is your first chance to avoid future problems. Not all self-storage facilities offer the same level of protection against moisture, so make sure you choose carefully. Here’s what to look for:

• A clean, well-maintained property
• Solid, sealed units that keep out rain and humidity
• Units that are elevated off the ground or not prone to flooding
• Responsive, experienced staff (you want someone who knows what to look for and how to help)

Step 2: Pack Like Moisture Is a Given

Even the best self-storage units can’t protect against water damage if your items aren’t packed the right way. Think of your unit like a garage—it offers shelter, but you still need to prep your stuff for the elements. Here’s how to pack smart:

• Ditch the Cardboard Boxes – They absorb moisture and fall apart. Go for plastic bins with tight lids instead.
• Raise Items Off the Floor – Use pallets or plastic shelving to help air flow underneath.
• Never Store Anything Damp – Even a little moisture trapped in clothes or appliances can lead to mold.
• Seal Up Soft Goods – Use vacuum-sealed bags for clothing, bedding, or curtains.

This is one of the most important tips for self-storage success: prep like you’re expecting fog or drizzle.

Step 3: Use Moisture Control Tools (They’re Easy)

Once your unit is packed and organized, don’t stop there. Moisture has a sneaky way of showing up, especially in humid or coastal areas like Capitola. Adding moisture control is one of the smartest things you can do. What to use:

• Silica Gel Packets – Great for plastic bins and boxes.
• Charcoal or Moisture Absorbers – Budget-friendly and perfect for small-to-medium units.
• Portable Dehumidifier – Best for longer-term storage or higher-value items.
• Plastic Vapor Barriers – Lay them on the floor under furniture or boxes.

These tools don’t cost much, and they’ll save you from the hassle and cost of self-storage water damage.

Step 4: Visit and Check Your Unit Once in a While

Out of sight, out of mind? That’s the fastest way to miss the warning signs of moisture buildup. Checking your unit every few weeks, especially after heavy rain or high humidity, can make a big difference. Here’s what to do:

• Look for water stains or dampness along walls, ceilings, or floors
• Check inside bins or boxes for condensation or a musty smell
• Leave the unit door open for a few minutes to let it air out

Step 5: Know the Moisture Traps You Might Be Storing

Some of the most common items people store are also the ones most likely to attract or trap moisture. If you’ve got any of these, pay extra attention to how you pack them:

• Appliances – Drain them, dry them, and leave doors cracked open
• Books, Documents, or Photos – Store important documents and anything that is like paper in airtight plastic containers with desiccants
• Mattresses and Furniture – Use plastic covers, not fabric ones that hold moisture
• Leather Goods and Wood – Condition them first, and don’t let them touch the floor
• Electronics – Remove batteries and wrap tightly in dry packing materials

Step 6: Go the Extra Mile with Advanced Protection

If you’re planning long-term storage or storing things you truly care about, a little extra protection goes a long way. Here are some next-level ideas:

• Use breathable covers instead of heavy plastic tarps—let your items “breathe” while still staying dry
• Label everything and create an inventory so you can spot anything at risk
• Ask about climate-controlled storage options if you’re storing sensitive items like antiques or musical instruments
• Double up on moisture control in the rainy season

You’ve Got This, And JD Mini Storage Has Your Back

If you’ve made it this far, you clearly care about keeping your items safe and dry—and we’re here for it. At JD Mini Storage, we know how much your belongings matter. That’s why our secure self-storage units are clean, reliable, and designed to help you avoid self-storage water damage from day one.

We’ve been helping families, businesses, and students in Capitola, CA with safe and affordable self-storage solutions for over 35 years. We’re open every day, we’re local, and we care about your peace of mind. Call us today to check unit availability, get pricing, or ask your storage questions. We’re always happy to help.