How can I store my car seat safely?

Storing a child’s car seat might seem simple, but the environment you keep it in can make a huge difference to its safety and longevity. Car seats contain materials that can be damaged by damp, mould, heat, cold, and pests. Once a seat has been compromised, it may no longer perform properly in a collision, even if the damage is not immediately obvious.

Whether you are keeping a spare seat between uses, storing a seat for your next baby, or putting a high back booster away for a few months, safe storage is essential.

Why storage matters

Car seats are made from a combination of energy-absorbing foam, plastics, webbing, metal components, and fabrics. These materials are designed to withstand crash forces, not mould growth, extreme temperatures, or prolonged UV exposure.

Poor storage can lead to:

• Mould or mildew within fabrics, foam, harness webbing, and the shell

• Weakened plastic caused by temperature extremes

• Degradation of harness and buckle components

• Damage from rodents or insects

• Warping, cracking, or fading from direct sunlight

Unfortunately, mould is particularly serious. There are no cleaning products strong enough to remove mould fully that are also safe for car seat materials. If mould develops, the seat must be scrapped, not cleaned.

The safest way to store your car seat

DO:

• Store in a temperature-regulated room such as a spare room, cupboard, or inside wardrobe space

• Keep the seat away from damp or moisture, including windowsills, conservatories, or areas prone to condensation

• Ensure the seat is clean and fully dry before storing to prevent mould growth

• Secure it safely if storing off the floor, such as on shelving, to avoid accidental falls

• Use silica gel bags to help absorb moisture within the storage area

• Check the seat regularly for signs of damp, mould, or pests

DON’T:

• Do not store in attics, lofts, cellars, or sheds, which are often damp and experience extreme temperatures

• Avoid garages, as they are prone to moisture and pests

• Avoid any location with insects or rodents, such as outhouses or utility areas with gaps

• Do not leave the seat in direct sunlight, which can fade and weaken materials over time

Tips and tricks for the best storage

• Store the seat in a bag, ideally inside its original box

• Double-bagging or vacuum-sealing can add extra protection

• Remove food or crumbs before storing, as these attract insects and can cause mould

• If storing in a vehicle, avoid leaving it there long term. Cars experience rapid temperature changes and moisture build-up, both of which damage seats.

What about long-term storage for the next baby?

If you are planning to reuse a seat for a future child, safe storage is even more important. Keep all manuals and accessories together, label the seat clearly, and check its expiry date. When you bring the seat out of storage, inspect everything thoroughly before use, including harness webbing, buckles, EPS foam, shell condition, and fabric integrity. If there is any sign of mould, pest damage, cracking, or deterioration, the seat can no longer be used.

FAQs

Can I store my car seat in the garage if it looks clean and dry?

It’s not recommended. Garages experience big temperature swings, higher humidity, and are more prone to insects and rodents. Even if it looks dry, conditions can change quickly and damage can occur long before it becomes visible.

What if I don’t have room to store the seat anywhere except a garage, attic, or similar space?

If you must store the seat in a less-than-ideal location, take every possible measure to reduce risk: double-bag the seat (or vacuum seal it), add silica gel packs inside the outer bag, keep it off the floor, and check it regularly. However, this type of storage always carries a higher risk of mould or damage. Consider asking trusted friends or family whether they have dry, temperature-regulated space available. A spare cupboard or spare bedroom in a relative’s home is far safer for long-term storage than a damp garage or loft.

How should I store accessories?

Keep everything together in a labelled bag or inside the original box so nothing goes missing. Make sure all parts are dry before packing away. If your seat has removable inserts, store them loose rather than compressed to help maintain their shape.