When you rent a storage unit, your facility will almost certainly require you to have insurance in place. At that point, many people wonder: can I just use my existing home contents policy, or do I have to buy something new? The answer depends on what your policy actually says — and whether the facility will accept it.
What your storage facility is actually asking for
Most UK storage operators require two things: that you hold valid insurance covering the contents of your unit, and that you can provide a certificate of insurance as proof. That second point is where things often go wrong.
A certificate of insurance is a specific document showing the policy details, the insured address (your storage unit), and the cover in force. Some home contents insurers can produce a document like this for off-site storage; many cannot — at least not without a phone call, a wait, and sometimes an additional premium.
With a cover4storage policy, your certificate is issued the moment you complete your purchase. You can download it immediately and take it straight to your facility.
Home contents insurance: what it usually covers in storage
The starting point for most people is their existing home contents policy. Home insurance is designed to protect belongings at your home address. Cover for belongings elsewhere — in a storage unit, at a hotel, in a car — is typically a secondary consideration.
When it comes to self-storage specifically, policies fall into three categories:
- No cover at all. The policy excludes belongings held in storage. Common on budget or basic policies.
- Partial cover. Usually capped at around 10% of your total contents sum insured, and restricted to a subset of events. A £40,000 contents policy might extend £4,000 of cover to a storage unit — which may be well short of the full value stored.
- Full off-site cover. Some higher-end policies do extend fully to storage, but often with conditions around the type of facility (purpose-built, alarmed, CCTV).
Watch out for partial cover. Even where your home policy does extend to storage, the sub-limit is often much lower than the value you're actually storing. If you're underinsured and make a claim, you'll only receive a proportion of your loss.
Three questions to ask your home insurer
Before assuming your home contents policy covers your storage unit, get clear answers to these:
- Does the policy cover belongings stored off-site in a self-storage unit? Get this confirmed in writing, not just verbally.
- What is the maximum amount payable for off-site storage? Is it a flat limit or a percentage of your total sum insured?
- Can you provide a certificate of insurance for the storage unit? This is what your facility will ask for — confirm your insurer can produce one in the right format.
If the answers are satisfactory on all three, your home policy may be sufficient. If any answer is uncertain or unhelpful, a dedicated storage policy is the simpler route.
Can my facility require me to use their insurance?
No. Your facility can require you to hold valid insurance as a condition of rental — but they cannot require you to buy it from them. You are entitled to arrange cover from any FCA-regulated insurer.
Some facilities may push back when you present an independent certificate. If this happens, simply ask them to confirm whether they accept FCA-regulated policies — which they must. cover4storage policies are accepted at all major UK storage operators.
What about business insurance?
If you're storing business stock, tools, or equipment, your commercial insurance may or may not extend to off-site storage. Many business policies do include a "goods in transit" or "property away from premises" extension, but the terms vary significantly between insurers and policy types.
The same questions apply: check the limit, check the covered events, and check whether a certificate can be issued. cover4storage also offers cover for business contents — select Business/Commercial Possessions at quote stage and machinery, stock, and tools are included, provided you can supply proof of purchase for any commercial items claimed.
The case for a dedicated policy
A dedicated self-storage insurance policy removes the ambiguity entirely. You know exactly what's covered, to what limit, and you have a certificate immediately. For most people, it works out cheaper than they expect — from £16.50 a year — and often cheaper than what a home contents extension would cost for the same level of protection.
There's also a practical benefit: if you move your belongings to a different qualifying facility at any point, your cover4storage policy moves with you. A home contents extension tied to a specific address would need updating each time.
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If your existing policy doesn't stack up, see how dedicated storage unit insurance compares.