Self Storage Insurance in the UK: What It Covers, What It Costs, and When You Don’t Need It
Almost every self storage facility in the UK will not let you move in until your belongings are insured, and most will sell you that insurance at the counter. This guide explains what the cover actually does, what it costs per £1,000 in 2026, where home insurance falls short, and how Stackt’s collection service removes the question altogether by including cover up to £100 per item in the price. Last checked 8 October 2026.
Key takeaways
- Storage insurance is not required by law, but operators make it a condition of the contract. You can usually bring your own policy if you show proof.
- In-house facility cover typically costs £1–£3 per £1,000 of declared value per month; specialist insurers are usually cheaper. Over a year that is often £60–£180 on top of the unit.
- Home contents insurance may cover items "temporarily removed" for a short period and a small percentage of the sum insured, often excluding theft without forced entry.
- Check the single-item limit and the exclusions (damp, pests, cash, jewellery) before you decide how much cover to buy.
- Stackt includes £100 per item (£10,000 total) with every plan; £200 per item costs £0.13 per item per week and £500 per item costs £0.25.
Do you need insurance for self storage in the UK?
Legally, no. Practically, yes. The standard UK self storage licence agreement (most operators use a version of the Self Storage Association template) makes the customer responsible for insuring the goods and requires cover to be in place for the whole period. Facilities enforce this at move-in: you either buy their cover, declared in bands of £1,000, or hand over a schedule from your own insurer showing the storage address, the sum insured and the dates.
The operator’s own cover is the path of least resistance, which is why it is where most people overpay. It is also why insurance is one of the costs that make the advertised unit price misleading; our storage costs guide breaks down the full monthly bill.
What self storage insurance costs in 2026
Prices are quoted per £1,000 of cover per month, and the sum you declare is meant to be the replacement value of everything in the unit, not what you paid for it. These are typical ranges we see across London facilities and the main specialist insurers; individual quotes vary with the facility, the postcode and the sum insured.
| Option | Typical cost | What you get | Watch out for |
|---|---|---|---|
| Facility in-house cover | £1–£3 per £1,000 per month (so £5,000 ≈ £5–£15/month) | Fire, theft with forced entry, flood, storm; sold at move-in in £1,000 bands | Minimum declared value often £1,000–£2,000; single-item limits; price rises with the unit |
| Specialist storage insurer | From around £1 per £1,000 per month, small minimum premium | Same perils, often a higher single-item limit, monthly rolling | You must send the schedule to the facility; some operators refuse third-party cover |
| Home contents extension | Sometimes free, sometimes a premium increase | "Contents temporarily removed": often 10–15% of the contents sum insured for 30–90 days | Theft usually needs forced entry; long-term storage is commonly excluded |
| Stackt storage with collection | Included: £100 per item, £10,000 total. Optional £0.13/item/week for £200 per item, £0.25/item/week for £500 per item | Cover from collection to delivery back, items photographed and listed at pick-up | Per-item limits apply; choose the tier at checkout for high-value pieces |
Over a typical six-month stay, facility cover on £5,000 of belongings adds roughly £30–£90 to the bill; on £10,000 it is £60–£180. That is why the headline “from £X a week” on a unit is rarely the price you pay.
What a storage policy covers, and what it does not
The core perils are the same across facility cover, specialist policies and Stackt’s included protection: fire, lightning, explosion, storm, flood, escape of water, theft involving forced entry, and impact or collapse of the building. Beyond that the differences are in the exclusions and limits, which is where claims get refused.
Common exclusions
- Gradual damage: damp, mould, mildew, rust and warping that develop over time rather than from one event.
- Vermin, moth and insect damage (which is why we pack clothes the way our clothes storage guide describes).
- Cash, bank cards, jewellery, watches, furs and documents above small limits, usually £100–£500.
- Items the facility prohibits: fuel, paint and chemicals, perishable food, plants, animals, firearms.
- Theft without visible forced entry, and anything left outside the locked unit or in a shared corridor.
- Business stock held for sale, unless the policy is a business storage policy.
Limits that matter more than the headline sum
Every policy has a single-item limit. A £10,000 policy with a £500 single-item limit pays £500 for a £2,000 sofa. Specialist insurers and some facilities let you schedule individual high-value items for an extra premium; Stackt handles the same need with its Extended Optimum and Extended Maximum tiers, chosen per item when you book.
How much cover do you actually need?
Insurers pay on an indemnity or replacement basis. Indemnity means today’s second-hand value; replacement (“new for old”) means the cost of buying the same item new. Most facility cover is replacement value, so declare what it would cost to replace the contents from new, not what you would get for them on a marketplace.
- Walk through the items with a notes app and photograph each one. A free room-by-room list is on our home inventory tool.
- Price the big items new: sofa, bed, mattress, TV, bike, appliances. Then add a sensible figure for boxes of books, kitchenware and clothes; £100–£200 per box is realistic.
- Under-declaring is the classic mistake. If you insure £3,000 of belongings for £1,000, most policies apply "average" and pay only a third of any claim.
- Revisit the figure if you add items later; cover is per declared value at the time of the loss, not at move-in.
Home insurance vs self storage insurance
UK contents policies often include a “contents temporarily removed” clause: belongings away from the home are covered for a limited period, commonly 30 to 90 days, and up to a percentage of the sum insured, often 10 to 15 per cent. On a £40,000 contents policy that is £4,000–£6,000, which may be enough for a short stay between homes and not enough for a year of furniture storage.
The two conditions people miss are that theft usually requires forced and violent entry, and that storage “in the course of removal” is treated differently from long-term storage. If you plan to lean on home insurance, call your insurer, give them the facility address and the dates, and get the confirmation in writing; the facility will ask for it anyway.
Facility cover or your own policy: how to compare
If you are using a traditional self storage unit, compare the operator’s in-house cover against a specialist storage insurer on five lines: price per £1,000, single-item limit, excess, whether theft needs forced entry, and whether the policy is monthly rolling or fixed-term. Then check the facility accepts third-party cover before you buy it.
Do
- Ask for the policy wording, not the leaflet; the exclusions list is what you are buying.
- Match the sum insured to replacement value and update it if you add items.
- Keep the inventory and photos somewhere other than the unit.
- Ask whether the premium changes when the unit price changes; some in-house cover is a percentage.
Don’t
- Do not take the minimum band just to get through move-in and forget to raise it.
- Do not assume high-value items are covered: check the single-item limit and schedule them.
- Do not store prohibited items; a single can of paint can void the whole policy.
- Do not rely on the facility’s CCTV as cover. Security is a condition of insurance, not a substitute.
How Stackt covers your items without a separate policy
Everything above exists because self storage makes insurance the customer’s problem. With Stackt’s storage with collection, cover is part of the service from the moment our team collects to the moment we deliver back, and you do not need to shop for a policy.
- Basic cover is included with every plan and every item stored by the box: up to £100 per item and £10,000 in total, at no extra cost.
- Extended Optimum raises the limit to £200 per item (£20,000 in total) for £0.13 per item per week.
- Extended Maximum covers up to £500 per item (£25,000 in total) for £0.25 per item per week, for antiques, electronics and other high-value pieces.
- Your items are photographed and listed in your online inventory at collection, which is exactly the documentation an insurer asks for if you ever need to claim.
The cover tiers and every plan price are listed on the pricing page. To see how the all-in cost compares with a self storage unit plus insurance, read self storage prices in London.
Storage with insurance included, up to 40% OFF on longer terms
Making a claim on storage insurance
Claims on storage policies fail for the same three reasons: no proof of what was in the unit, a report made too late, and an exclusion. The process itself is short.
- Report it to the facility the day you find the damage or loss, and get their incident reference. For theft, report to the police and keep the crime reference number; insurers will not pay a theft claim without it.
- Notify the insurer within the period in the policy, usually 7–30 days, with photos, your inventory and receipts or valuations for anything over the single-item limit.
- Do not throw damaged items away until the insurer or loss adjuster has seen them or told you they do not need to.
- Keep a copy of everything you send. A payout is typically agreed within a few weeks once the proof of loss is complete.
With Stackt, the inventory and photos already exist from collection, so a claim starts from the record in your account rather than from memory.
Self storage insurance: your questions
Is insurance mandatory for self storage in the UK?
There is no law requiring it, but almost every UK self storage operator makes cover a condition of the licence agreement: you either buy their in-house cover or show proof of your own policy before you can move in. With Stackt storage with collection, basic cover up to £100 per item (£10,000 in total) is already included in the price, so there is nothing to arrange.
How much does self storage insurance cost in the UK?
Facility in-house cover is usually priced per £1,000 of declared value per month, typically £1 to £3, so £5,000 of cover costs around £5 to £15 a month on top of the unit. Specialist storage insurers tend to be at the lower end of that range with a small minimum premium. Stackt includes £100 per item as standard and charges £0.13 per item per week to raise it to £200 per item, or £0.25 per item per week for £500 per item.
Does home insurance cover items in a storage unit?
Sometimes, and only partly. Many UK contents policies cover belongings temporarily removed from the home, often capped at around 10 to 15 per cent of the contents sum insured and limited to a set period such as 30 to 90 days. Theft is frequently excluded unless there is forced entry. Check the "contents temporarily removed" or "away from home" section of your policy and ask your insurer to confirm in writing before relying on it.
What does storage insurance not cover?
Typical exclusions are wear and tear, damp and mould that develops gradually, pests, cash, jewellery and documents above small limits, items left outside a locked unit, and anything the facility prohibits (fuel, perishables, plants, animals, firearms). Most policies also apply a single-item limit, so a £3,000 bike under a £500-per-item policy is only covered to £500.
Can I use my own insurance instead of the facility’s?
Usually yes. Operators that require cover will normally accept a specialist storage policy or a home insurance extension if you provide the schedule showing the storage address, the sum insured and the dates. A few facilities only accept their own cover; ask before signing.
Do I need separate insurance with Stackt?
No. Every Stackt plan and every item stored by the box includes cover up to £100 per item and £10,000 in total. If you are storing higher-value pieces you can choose Extended Optimum (£200 per item) or Extended Maximum (£500 per item) at checkout, priced per item per week, so you only pay extra on the items that need it.
