Do I Need Plant Insurance for My Own Equipment?
No law makes you insure your own plant. You need it once the machines you own are worth more than you could replace out of cash flow, and once a main contractor starts asking for evidence of cover.
Owned plant cover is the property section of a tradesman insurance package, and it is the only part that pays you rather than someone else.
This guide covers what counts as plant, how a claim is actually settled, the security conditions attached to the cover, and where owned plant ends and hired-in plant begins.
Insure your own plant once it’s worth more than you could replace out of cash flow, or as soon as a main contractor asks for evidence of cover. Check whether your policy settles new for old or on an indemnity basis, because that changes what a claim actually pays out. Meeting the security conditions in your policy, such as approved locks and trackers, matters as much as the sum insured.
Compare plant and tools cover before you add new equipment.
- What counts as plant rather than tools?
- Is plant insurance for your own equipment a legal requirement?
- How will the insurer settle a claim, new for old or indemnity?
- How do you set the sum insured on owned plant?
- What security conditions does the policy impose?
- What is excluded from owned plant cover?
- Where does owned plant stop and hired-in plant begin?
- How do you cut the cost of plant cover?
- Frequently asked questions (FAQs)
What counts as plant rather than tools?
Plant is machinery scheduled by item, make, model and serial number. Tools are hand and power tools covered as a group up to a single total, with a cap on any one item.
The value and scheduling line
Most insurers draw the line by value and by whether the item can be identified individually. A generator with a serial plate gets scheduled, a cordless impact driver does not.
Money.co.uk publishes tools quotes at £13.43, £26.86 and £80.56 a month for £2,500, £5,000 and £10,000 of cover, drawn from Superscript data between October and December 2024. Those are tools figures, not plant figures.
Where the two covers overlap
Mid-sized kit sits in the grey area. A carpenter with a site saw and a dust extractor may find both insurers willing to write it either way.
Ask which section the item sits in before you buy, not after a theft. The excess and the settlement basis often differ between the two.
Why the label matters at claim stage
Tools sections usually carry a single-item cap, commonly a few hundred pounds. A £4,000 machine insured inside a tools limit can settle for a fraction of its value.
Scheduled plant has no such cap because each item carries its own stated value. The paperwork is more work up front and far less argument later.
| Tools cover | Owned plant cover | Hired-in plant cover | |
| What it insures | Hand and power tools | Machines your business owns | Machines you rent from a hire firm |
| How items are listed | A total limit, plus a single-item cap | Scheduled by make, model and serial | Scheduled or a blanket hire limit |
| Who is paid | You | You | The hire company, through you |
| Basis of the claim | Your own loss | Your own loss | Your contractual liability |
| Typical trigger to buy | A van full of kit | Owning a machine you cannot replace quickly | A hire agreement that makes you liable |
Is plant insurance for your own equipment a legal requirement?
No. Unlike employers’ liability, no statute forces you to insure machines you own, so the pressure comes from contracts and from your own balance sheet instead.
No statute makes you buy it
Employers’ liability is the compulsory cover for tradespeople, and public liability is compulsory only through contracts. Owned plant is a commercial judgement from start to finish.
The ABI found in January 2026 that 28% of UK sole traders hold no insurance at all, with median spend among the insured running £250 to £499 a year.
The contracts that insist on it
Main contractors, local authorities and housing providers routinely require plant and equipment cover alongside liability limits. A builder on a framework will be asked for the schedule, not just the certificate.
Machines financed on hire purchase or lease usually carry an insurance obligation in the finance agreement as well. Read that clause before you decide you can self-insure.
How will the insurer settle a claim, new for old or indemnity?
This is the single most claim-relevant line in a plant policy. New-for-old replaces the machine, indemnity pays what the old one was worth, and the gap between them can be most of the value.
Reinstatement on newer machines
Reinstatement cover, often written as new-for-old, replaces a destroyed machine with an equivalent new one. Insurers usually restrict it to plant below a stated age.
Where reinstatement applies, the sum insured has to be the current new list price. Insure it at what you paid five years ago and the settlement follows the lower figure.
Indemnity and depreciation on older machines
Indemnity settlement pays market value at the moment of loss, with deductions for age, hours and condition. On a ten-year-old excavator that can be a small fraction of replacement cost.
That difference decides whether a total loss puts you back on site or off it. It is the same logic that sits behind how much cover a trade business really needs.
The age limit most wordings carry
Look for the age cut-off in the wording, commonly expressed in years from first registration or manufacture. Older plant drops to indemnity automatically on renewal.
Nobody writes to tell you when a machine crosses that line. Check it at each renewal against the dates on your schedule.
| Settlement basis | What you receive | Typically applies to | The risk to you |
| Reinstatement, new for old | A new equivalent machine | Newer plant within the insurer’s age limit | The sum insured must track current new prices |
| Indemnity, market value | Second-hand value less depreciation | Older plant past the age limit | A total loss may not fund a replacement |
| Repair | Cost of putting the machine right | Damage short of a write-off | Betterment arguments and downtime are yours |
How do you set the sum insured on owned plant?
Schedule each machine at what it would cost to buy today, then set an unspecified items limit for everything too small to list. Guessing low is the most expensive shortcut in the policy.
Scheduling each machine
The schedule wants make, model, year, serial or PIN number and value. Keep it as a live document rather than something typed once at inception.
A gardener adding a ride-on mower in March needs it on the schedule in March, not at renewal in October.
The unspecified items limit
Smaller machines are usually covered under an unspecified items limit with a per-item cap. Anything above the cap has to be named individually.
Check the cap figure rather than assuming it. A £1,000 per-item limit does not cover a £3,000 compactor just because the overall limit is high.
What under-insurance costs you
If the total sum insured falls short, the insurer can apply average and scale the payment down in proportion. Insure two-thirds of your plant value and you carry a third of every claim.
Average applies to partial losses as well as total ones. It is not a penalty reserved for the worst day.
What security conditions does the policy impose?
Plant theft drives the rating, so the cover comes with conditions: immobilisation, keys removed, secure storage and often tracking or CESAR marking above a value threshold.
Immobilisers, trackers and cesar marking
CESAR marking gives a machine a registered, tamper-evident identity that police and auction houses can check. Many insurers require it on plant above a stated value, and most rate it favourably.
Telematics trackers do the same job after the event. Recovery rates are the reason underwriters care about both.
Compounds, keys and overnight storage
Expect conditions on where plant is left overnight: a locked compound, a fenced site, or chained to a fixed object. Keys left in the machine will void most theft claims outright.
Kit stored in a van at home falls under different rules again, and van insurance rarely fills the gap because contents limits are low.
Why theft conditions are enforced hard
There is no official government figure for tool and plant theft. The best available survey, from Simply Business across 645 tradespeople in March 2026, put 51% as affected with an average claim of £2,646, which is why commercial van cover and site security are looked at together.
Meet the conditions and the claim is routine. Miss one and the insurer has a clean reason to decline.
| Security condition | What the insurer expects | Effect on the policy |
| Immobilisation | Keys removed and the machine immobilised when unattended | Theft claims commonly declined without it |
| Secure storage | Locked compound, fenced site or chained to a fixed object overnight | Often a condition precedent to theft cover |
| CESAR marking | Registered marking on plant above a stated value | Frequently required, usually rated favourably |
| Tracking | Telematics fitted to higher-value machines | Improves recovery and can reduce the premium |
| Records | Serial numbers, photographs and purchase invoices kept | Speeds settlement and proves ownership |
What is excluded from owned plant cover?
Wear and tear, mechanical and electrical breakdown, overloading and use by untrained operators are the standard exclusions. Damage caused by neglect sits alongside them.
Breakdown and wear
A hydraulic ram that fails through age is a maintenance cost, not an insured loss. Breakdown cover is a separate extension where an insurer offers it at all.
The same applies to gradual deterioration, corrosion and component fatigue. Insurance answers sudden and unexpected events.
Untrained operators and overloading
Running a machine beyond its rated capacity, or letting an untrained operator use it, will usually void a claim. HSE construction guidance sets the competence expectations that policy wordings rely on.
Statutory inspection regimes matter too. Lifting equipment records and thorough examinations are checked after a loss, in the same way an electrician expects test certificates to be checked.
Where does owned plant stop and hired-in plant begin?
Ownership decides it. Owned plant insures your asset and pays you, while hired-in plant insures the liability your hire contract creates and pays what you owe the owner.
Who holds the insurable interest
You cannot insure a hired machine as owned plant, because the loss is not yours to suffer. The hire company owns it and you owe them for it.
Standard UK plant hire conditions make the hirer responsible for loss or damage from whatever cause, fair wear and tear excepted, so the exposure is real even when nothing was your fault.
Why contractors often need both
Owning a core fleet and hiring the peaks is the normal pattern. Two sections, two limits, and neither one absorbs the other.
Set the hired-in limit from the largest combination of machines you will have on hire at once. Set the owned limit from your asset register, then check both against your public liability limit.
How do you cut the cost of plant cover?
Security and claims record do most of the work. Everything else is a trade between excess, limit and how much risk you keep yourself.
Security that underwriters actually rate
Compound storage, CESAR marking, trackers and hydraulic immobilisers all move the rating. Photograph the setup and send it in with the proposal.
Where plant lives in a vehicle overnight, upgraded locks and a bolted tool vault help. Choosing the right commercial vehicle insurer is part of the same conversation.
Excess, limits and claims record
A higher voluntary excess reduces the premium and moves small losses onto you. Trade risk still sets the baseline, and SimplyQuote’s own cost guide puts tradesman premiums between £200 and £1,200 a year across the trades.
Premiums for cover taken wholly and exclusively for the business are an allowable expense against profits under HMRC expenses guidance. That reduces the net cost of insuring properly.
Frequently Asked Questions (FAQs)
No. Employers’ liability is the only compulsory trade cover, alongside third-party motor insurance for any vehicle used on the road.
Insuring your own machines is a commercial decision driven by contracts and replacement cost. Nothing in law forces it.
Tools are covered as a group up to a total limit with a cap on any single item. Plant is scheduled individually by make, model and serial number, with no single-item cap.
Only if reinstatement cover applies and the machine is within the insurer’s age limit. Older plant usually settles on an indemnity basis, at market value less depreciation.
The insurer can apply average and reduce the settlement in proportion to the shortfall. It applies to partial losses as well as total ones.
Higher-value items are scheduled individually. Smaller kit sits under an unspecified items limit with a per-item cap you should check rather than assume.
Usually not. Most wordings make immobilisation, key removal and secure overnight storage conditions of the theft cover.
No. Hired plant is a separate section because you are insuring a contractual liability to the owner rather than your own asset.
Insurance taken out wholly and exclusively for the business is an allowable expense against your profits. Personal cover is not.