Storage Unit Water Damage – Causes, Repair, and Insurance

Renting a storage unit can give you extra space and peace of mind. But what happens when water damage occurs? Leaks, flooding, and humidity can ruin valuable items, leading to mold growth and costly losses. 

Unfortunately, many renters in Grand Rapids don’t realize their stored items are vulnerable until it’s too late. The good news? With the proper precautions, you can reduce the risks. Below, we’ll explore the common causes of storage unit water damage and how to prevent them.

Common Causes of Storage Unit Water Damage

Water damage in a storage unit can happen for several reasons, but these are the most common: 

• Leaky Roofs: A damaged or aging roof can allow water to seep into storage units during heavy rain or snowmelt. 

• Flooding: Ground-level or basement units are especially vulnerable when water pools around the facility.  
• Poor Ventilation and High Humidity: Lack of air circulation can lead to condensation and encourage mold growth. 
• Burst Pipes or Plumbing Issues: Cold temperatures can cause pipes to freeze and burst, flooding storage spaces.  
• Fault or Missing Weather Seals: Worn-out door or window seals allow moisture in, creating an ongoing risk of dampness.

Addressing Water Damage Storage Unit Issues 

If you discover water damage in your storage unit, acting quickly can prevent further loss and save more belongings.

Immediate Steps 

Immediately remove all affected items from the unit. Even if only a portion of your belongings appears wet, moisture can spread and cause further damage over time. Once cleared, assess the extent of the water damage. 

Call the Professionals 

For severe water damage, professional intervention may be necessary. At Restoration 1 of Grand Rapids, we specialize in water damage cleanup, including water extraction, drying, and mold remediation.

Please don’t hesitate to call us when you experience water damage in your storage unit. We work diligently to remove all moisture and minimize the risk of long-term damage. 

Cleaning and Salvaging Belongings

Assess which of your belongings can be saved and which may need to be discarded. Fabric items should be washed and dried immediately. Wood furniture may be saved if dried and treated with anti-mold solutions. Electronics must be inspected first before they can be turned on. 

However, if mold has set in or an item is severely waterlogged, it’s often safer to dispose of it.

Navigating Insurance for Storage Unit Water Damage 

Many renters and homeowners insurance policies cover storage units, but not all include water damage. Some policies may protect against leaks from burst pipes or roof failures but exclude flooding. For extra protection, consider adding storage unit flood insurance, which specifically covers water damage from natural disasters. 

If water damage does occur, document everything. Take photos of the damage and make a list of the affected items. A professional assessment from Restoration 1 can support your claim and provide proof of damage. 

Are Storage Units Responsible for Water Damage? 

In some cases, they may be responsible — especially if poor maintenance caused the issue. Check your rental agreement, ask about liability, and see if management offers reimbursement options. 

Preventing Future Water Damage Storage Unit Issues

The practical tips below, combined with preparation, can save you from costly damage later down the line.

Use Waterproof Bins Instead of Cardboard Boxes

Cardboard deteriorates quickly when wet. Plastic bins with tight-sealing lids offer better protection. You can also use resealable plastic bags for smaller items like documents or photos. 

Keep Belongings Elevated on Pallets

Even minimal floor moisture can ruin stored items. Elevate your belongings at least six inches off the ground using pallets or shelving. 

Opt for Climate-Controlled Storage

A climate-controlled unit is a smart investment if you’re storing valuable or moisture-sensitive items. These units regulate temperature and humidity, reducing condensation and preventing mold.

Inspect Regularly for Leaks and Humidity

A quick visit to your storage unit every few weeks can help catch issues early. Check for musty smells, water stains, or condensation on walls and ceilings, and report any problems to the facility immediately.