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Semi-Trailer Insurance

Compare semi-trailer insurance quotes from leading Australian transport insurers. Comprehensive, third party and fleet cover for flat tops, reefers, tankers and more. Free quotes from Shielded Insurance.

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Semi-Trailer Insurance

Dedicated cover for semi-trailers of all types operating across Australia.

Semi-trailers are the workhorses behind almost every freight task in Australia - from flat tops hauling steel and timber to refrigerated vans carrying produce across state lines. A single semi-trailer can be valued from $30,000 for a basic used flat top to over $200,000 for a new refrigerated or specialised unit. Semi-trailer insurance is separate from prime mover cover and protects these assets against damage, theft and third-party claims, whether the trailer is hooked up, parked at a depot or in the care of another operator.

What Is a Semi-Trailer?
A semi-trailer is an unpowered freight trailer designed to be coupled to a prime mover via a fifth-wheel connection. The front of the trailer sits on the prime mover's turntable, while the rear rides on its own axle group. Common semi-trailer types in Australia include flat tops (general freight and building materials), curtainsiders/tautliners (palletised goods), refrigerated vans (temperature-controlled freight), drop decks (overheight loads), tankers (liquid and dry bulk), skeletal trailers (container transport) and stock crates (livestock). Leading trailer manufacturers in Australia include Vawdrey, Barker, Maxitrans, Krueger and Freighter.

What Does Semi-Trailer Insurance Cover?

  • Comprehensive Cover: Protects the trailer against accidental damage, collision, fire, theft, storm damage, vandalism and malicious acts. This includes damage while coupled to a prime mover, parked at a depot or in transit.
  • Third Party Property Damage: Covers damage the trailer causes to other vehicles, property or infrastructure - for example, if a trailer breaks free or sideswipes another vehicle.
  • Third Party Fire and Theft: A mid-tier option combining third party liability with fire and theft protection for the trailer.
  • Non-Owned Trailer Liability: Essential for operators who hook up to trailers they don't own. Covers damage to third-party trailers while in your care, custody and control.
  • Refrigeration Breakdown: For reefer trailers, specific cover for the refrigeration plant against mechanical and electrical breakdown, which can result in spoiled cargo worth tens of thousands of dollars.
  • Goods in Transit / Cargo: Protects the freight carried on the trailer against loss or damage during transit.
  • Downtime / Loss of Use: Income replacement when a trailer is off the road following an insured event.

What Affects the Cost of Semi-Trailer Insurance?
Premiums for semi-trailer insurance depend on several factors:

  • Trailer Type and Value: A new refrigerated van at $180,000 costs significantly more to insure than a used flat top valued at $40,000. Specialised trailers (tankers, low loaders) also attract higher premiums.
  • Age and Condition: Older trailers with structural wear, tyre issues or outdated braking systems may attract higher premiums or additional excess loadings.
  • Operating Use: Interstate line-haul operations generally cost more to insure than local metro work. The goods carried also matter - dangerous goods and high-value freight increase the risk profile.
  • Storage and Security: Trailers stored in secure, fenced depots with CCTV attract lower premiums than those parked on the street or at unsecured locations.
  • Claims History: A clean record over several years significantly improves premiums. Frequent claims - even minor panel damage - can accumulate and increase costs.
  • Fleet Size: Operators with multiple trailers may benefit from fleet policies offering volume discounts and simplified administration.

Pricing Guide for Semi-Trailer Insurance
As a general guide, comprehensive cover for a semi-trailer in Australia typically ranges from $1,500 to $8,000+ per year depending on the trailer type, value and operating profile. A basic used flat top may cost around $1,500-$2,500 per year, while a new refrigerated van or tanker may sit at $5,000-$8,000+. Shielded compares options from insurers including Zurich, NTI, CGU, Allianz, QBE, Hollard and Vero to find competitive cover for single trailers or full fleets.

Key Considerations for Semi-Trailer Owners

  • Separate Cover from Prime Mover: Semi-trailers require their own insurance - they are not automatically covered under a prime mover policy. Ensure each trailer is individually declared with its correct value.
  • Agreed Value vs Market Value: For newer or specialised trailers, agreed value provides certainty in the event of a total loss. Market value may be sufficient for older, commodity-type flat tops where replacement units are readily available.
  • Non-Owned Trailer Liability: If you regularly hook up to trailers belonging to freight companies or other operators, non-owned trailer liability cover is essential. Standard policies may include only limited default cover - check the sub-limit.
  • Parked Trailer Risks: Trailers parked at depots, loading docks or customer sites are vulnerable to theft, vandalism and storm damage. Ensure your policy covers trailers when unhitched and stationary, and declare storage locations accurately.
  • Modifications and Accessories: Aftermarket modifications - such as load restraint systems, mezzanine decks, side curtain upgrades or refrigeration plant replacements - should be declared and included in the sum insured.

How do you get started?

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1

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2

We compare the market.

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3

You're covered.

Pick the option that suits and we handle the paperwork.

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Cover Options

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Commercial Motor

Comprehensive, third party fire & theft, or third party property cover for your truck and trailers.

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Public Liability

Cover if your business causes injury or property damage to someone else.

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Downtime

Keep earning while your truck's off the road after an insured event.

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Marine and Cargo

Protects the goods you carry, from pickup to delivery.

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Personal Accident

Replaces your income if you're injured or sick and can't drive.

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Workers Compensation

Required cover if you employ drivers or staff.

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Types of Truck Insurance

We insure all types of trucks, trailers and commercial vehicles across Australia. Select your vehicle type to learn more.

Frequently Asked Questions

Questions about Semi-Trailer Insurance and General Enquiries

Is semi-trailer insurance separate from prime mover insurance?

Yes. A prime mover policy covers the cab-chassis unit, while each semi-trailer requires its own cover. They can be arranged under separate policies or combined under a fleet arrangement, but the trailer must be individually declared with its own sum insured.

How much does semi-trailer insurance cost in Australia?

Premiums vary based on trailer type and value. As a rough guide, comprehensive cover ranges from $1,500 per year for a basic used flat top to $8,000+ for a new refrigerated van or tanker. The best approach is to request a free quote from Shielded Insurance with your specific trailer details.

Do I need insurance for a trailer I don't own?

If you hook up to trailers belonging to other operators or freight companies, you should carry non-owned trailer liability cover. Without it, you could be personally liable for damage to the trailer while it is in your care, custody and control. Most prime mover policies include a basic sub-limit, but it may not be enough.

Are refrigerated trailers more expensive to insure?

Yes. Reefer trailers have higher insured values due to the refrigeration plant, and they carry additional risks including mechanical breakdown of the cooling system and potential cargo spoilage. Specific refrigeration breakdown cover is recommended in addition to standard comprehensive cover.

Is my trailer covered when it's parked and unhitched?

Yes, provided the storage location is accurately declared on your policy. Comprehensive cover protects the trailer whether it is coupled to a prime mover, parked at your depot or sitting at a customer's loading dock. Secure, fenced storage with CCTV may attract lower premiums.

What happens if my trailer is damaged while another driver is towing it?

If you own the trailer and it is damaged while being towed by another operator, your comprehensive policy should respond. However, you may also have a claim against the other operator's non-owned trailer liability cover. The specifics depend on the contractual arrangements and policy wordings involved.

Should I choose agreed value or market value for my trailer?

For newer or specialised trailers (reefers, tankers, low loaders), agreed value provides certainty and is recommended. For older, commodity-type flat tops where replacement units are readily available at known market prices, market value may be sufficient and slightly cheaper.

Which insurers cover semi-trailers in Australia?

Shielded compares quotes from specialist transport insurers including Zurich, NTI, CGU, Allianz, QBE, Vero and Hollard. Most transport-specialist insurers will cover all trailer types - flat tops, reefers, curtainsiders, tankers, drop decks and skeletal trailers - either individually or under fleet arrangements.

What type of truck insurance is available in Australia?

In Australia, truck insurance typically includes comprehensive motor cover (accidental damage, fire, theft and weather), third party property damage, public liability, cargo/marine transit cover, downtime or loss-of-use cover, and personal accident insurance. At Shielded, we tailor a combination of these options to match your operation – whether you run a single rigid truck or a fleet of prime movers and trailers.

What factors affect my truck insurance premium?

Several factors influence your premium including the type and value of your truck, your claims and driving history, the goods you carry, your operating radius (metro vs interstate), the level of excess you choose, and the cover options you select. For example, a prime mover hauling dangerous goods interstate will typically attract a higher premium than a light rigid truck doing local deliveries.

How can I get cheaper truck insurance?

You can reduce your truck insurance costs by increasing your excess, bundling multiple vehicles or cover types into one policy, maintaining a clean claims history, and using an insurance broker like Shielded to compare quotes from multiple insurers. We compare rates from Zurich, NTI, CGU, Allianz, QBE and more to find competitive pricing for your situation.

Who do I contact to make a claim?

In the event of an accident or claim, contact us at Shielded Insurance on 1800 97 98 99 or reach out to your insurer directly. We recommend notifying us as soon as possible so we can guide you through the claims process and help ensure a smooth outcome.

Do I need extra cover when towing other owners' trailers?

Yes, if you need full comprehensive coverage on a trailer you don't own, you'll need to list it on your policy. Some policies include default non-owned trailer coverage up to a certain limit (usually $50,000 to $100,000), but this typically covers liability only – not damage to the trailer itself. Talk to us about your towing arrangements so we can ensure you're properly covered.

Does truck insurance cover fire and theft?

Yes, comprehensive truck insurance policies in Australia include cover for both fire and theft as standard. Third party property damage policies do not include this – you need at least a third party fire and theft or comprehensive policy. If your truck is financed, your lender will usually require comprehensive cover.

Do I need extra cover for transporting dangerous goods?

Yes, if you're transporting dangerous goods (fuel, chemicals, gases etc.) you'll generally need specialist dangerous goods liability coverage. Limits can range significantly depending on the type of goods and the distances travelled, so it's important to discuss your specific requirements with us to ensure adequate protection.

Am I covered Australia wide?

Most truck insurance policies provide coverage across Australia, however some policies include a radius-of-operation limit based on what you declared when the policy was set up. If you travel outside your declared radius, additional excesses may apply or you may have issues at claim time. If your operations change, let us know so we can update your policy accordingly.

Which insurers does Shielded compare for truck insurance?

We compare quotes from a wide panel of Australian insurers including Zurich, NTI, HMIA, Penn, Global Transport (GT), ATL, CGU, Vero, Hollard, Allianz, and QBE. We're not limited to these – the best insurer depends on your truck type, what you carry, and how you operate. As brokers, we do the comparison work for you to find the most competitive and suitable cover.

How much does truck insurance cost in Australia?

Truck insurance premiums vary widely depending on the vehicle type and value, your claims history, the goods carried, and your operating radius. As a rough guide, a single rigid truck may cost between $2,000–$5,000 per year for comprehensive cover, while a prime mover and trailer combination could range from $5,000–$15,000 or more. The best way to get an accurate price is to request a free quote through Shielded.

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