Yes, power tools and machinery can be stored safely in a self storage unit, as long as the unit is dry, secure, and set up the right way. The right conditions protect equipment from rust, damage, and theft, while keeping it ready to use the moment the next job starts.
For businesses that rely on expensive tools and machinery, storage isn’t just about finding space. It’s about protecting equipment that’s often too valuable, and too essential, to leave sitting in a van or a corner of the workshop.

What Makes a Storage Unit Safe for Power Tools and Machinery
Not every storage space is suitable for tools and equipment. A few features make the biggest difference:
Dry, ventilated conditions that reduce the risk of condensation building up inside the unit. Secure access, such as gated entry, CCTV, and an individually locked unit. A solid, level base, so equipment isn’t sitting directly on damp ground. Enough room to store items properly, rather than stacking everything against the walls.
Getting these basics right does most of the work in keeping tools and machinery in good condition.
Protecting Tools From Rust and Moisture Damage
Rust is one of the biggest risks to metal tools and machinery in storage. Insulated and ventilated units help reduce the temperature swings and condensation that cause moisture to build up inside a unit over time.
A few habits help too. Keep tools off the floor where possible, store them in cases or boxes rather than loose, and wipe down metal surfaces before putting anything into storage. Small steps like these go a long way toward preventing rust between uses.
Keeping Batteries and Power Equipment in Good Condition
Cordless tools bring their own consideration: batteries. Extreme heat or cold can affect battery performance and lifespan over time, so it’s worth avoiding units that aren’t insulated if you’re storing a lot of battery-powered equipment. Storing batteries partially charged, rather than fully depleted, for long stretches also helps preserve their condition.
Storing Heavier Machinery Safely
Larger machinery needs a bit more planning. Drive-up access makes a real difference here, since it lets you load and unload directly without carrying heavy equipment through corridors or doorways.
Inside the unit, position heavier items so they’re stable and won’t tip, and leave clear walkways so you can move around safely when loading or retrieving equipment. It’s a small habit that saves time and reduces the risk of damage or injury.
Security Considerations for Valuable Equipment
Power tools and machinery are common targets for theft, so security matters as much as protection from the elements. Look for a storage site with CCTV coverage, gated or coded access, and individually locked units rather than shared or open storage areas.
It’s also worth checking whether your business insurance covers tools and equipment kept off-site, since storage providers don’t automatically insure the contents of a unit.
A Few Tips for Storing Power Tools and Machinery Long Term
Before placing equipment in storage, clean it thoroughly to remove dust, debris, and any damp materials that could lead to damage over time. Keep blades, attachments, and accessories separate, with clear labels to make them easy to locate, and group tools by project or trade for quicker access.
For more useful tips, see How to Organise a Storage Unit for Maximum Efficiency, especially when arranging equipment for long-term storage. If machinery will remain unused for several months, check on it occasionally and run it briefly to help keep its moving parts working freely.
Final Thoughts
Storing power tools and machinery is safe, and often a smarter option than leaving equipment in a van, garage, or crowded workshop, as long as the unit is dry, secure, and organized properly. The right storage setup protects your investment and keeps everything ready for the next job.
At Wow Storage, our drive-up units across London and Hertfordshire are insulated, ventilated, and fitted with power and lighting, with CCTV and secure access on every site. It’s a practical way to keep tools and machinery protected between projects.
Frequently Asked Questions
Yes. As long as the unit is dry and well-maintained, power tools can be stored for as long as your business needs, whether that’s a few weeks between jobs or an ongoing arrangement.
It can, if the unit isn’t insulated or ventilated. Choosing a unit designed to reduce condensation, and keeping tools off the floor, helps prevent rust and moisture damage.
Yes, though extreme temperatures can affect battery performance over time. An insulated unit and storing batteries partially charged both help preserve battery life.
Good ones do. Look for CCTV, gated or coded access, and individually locked units, rather than shared storage spaces.
In most cases, yes. Drive-up access makes loading and unloading heavier machinery much easier, and there’s usually enough space to store it securely alongside other equipment.