What Is Comprehensive Car Insurance?
Comprehensive car insurance is the highest level of cover available in the UK, protecting your own vehicle as well as other people, their vehicles, and their property, even if the accident is your fault.
It sits above third-party only and third-party, fire and theft in the cover hierarchy. Despite the name, comprehensive doesn’t mean everything is included; each insurer defines what’s covered slightly differently.
This guide explains what comprehensive car insurance covers, what it doesn’t, how it compares to other levels, and why it’s often cheaper than you’d expect.
Comprehensive is the highest level of car insurance but often the cheapest, because drivers who choose it tend to be lower risk.
Get a car insurance quote to see how comprehensive cover compares for you.
- What does comprehensive car insurance cover?
- How does comprehensive compare to other cover levels?
- Is comprehensive car insurance more expensive?
- What isn’t covered by a comprehensive policy?
- Which add-ons are worth getting with comprehensive cover?
- How do you choose the right comprehensive policy?
- Frequently asked questions (FAQs)
What does comprehensive car insurance cover?
Comprehensive insurance covers damage to your own car, other people’s vehicles and property, and a range of risks including fire, theft, and vandalism, even when the accident is your fault.
It’s the broadest form of motor insurance available. While the exact inclusions vary by provider, most comprehensive policies share the same core protections.
Damage to your own vehicle
If you hit another car, clip a bollard, or reverse into a wall, comprehensive cover pays for the repairs to your own vehicle. Neither third-party only nor third-party, fire and theft covers this.
This is the single biggest reason most drivers choose comprehensive. Without it, any damage you cause to your own car comes out of your own pocket.
Third-party damage and injury
Like all UK motor insurance, comprehensive covers damage you cause to other vehicles, property, and people. This is the legal minimum required by law.
The Road Traffic Act 1988 requires every driver to hold at least third-party cover. Comprehensive includes this as standard, plus everything above it.
Fire, theft and vandalism
Your car is covered if it’s stolen, set on fire, or deliberately damaged by someone else. Third-party, fire and theft covers the first two of these, but only comprehensive adds vandalism.
If your car is keyed in a car park or has a wing mirror snapped off overnight, comprehensive is the only level that pays out.
Windscreen and glass damage
Most comprehensive policies include windscreen repair or replacement as standard, though some insurers treat it as a separate add-on with its own excess.
A stone chip repair often carries no excess at all, or a small one of up to £10. A full windscreen replacement usually has a higher excess of £75 to £150.
| What’s typically covered | What’s typically NOT covered |
| Accidental damage to your own car | Wear and tear or mechanical breakdown |
| Damage to third-party vehicles and property | Deliberate damage or reckless driving |
| Fire, theft and attempted theft | Undeclared vehicle modifications |
| Vandalism and malicious damage | Personal belongings (unless added) |
| Windscreen repair and replacement | Breakdown recovery (unless added) |
| Personal injury to you and passengers | Driving other cars (check your policy) |
How does comprehensive compare to other cover levels?
Comprehensive covers everything that third-party only and third-party, fire and theft cover, plus damage to your own vehicle, vandalism, and windscreen repairs.
The three cover levels form a hierarchy. Each step up adds protection without removing anything from the level below.
Third-party only
The legal minimum. It covers damage you cause to other people, vehicles, and property, but nothing else. Your own car is completely unprotected.
Third-party only is often chosen by young drivers or those with older, low-value cars. However, it’s frequently the most expensive option (see pricing below).
Third-party, fire and theft
Adds cover for your car if it’s stolen or damaged by fire. It does not cover accidental damage to your own vehicle.
This middle option is less common than it used to be. Many drivers find fully comprehensive cover costs a similar amount or less, making TPFT hard to justify.
| Cover level | Your car’s damage | Fire & theft | Windscreen | Vandalism | Typical cost |
| Third-party only | No | No | No | No | £1,343 |
| Third-party, fire & theft | No | Yes | No | No | £1,013 |
| Comprehensive | Yes | Yes | Yes | Yes | £606 |
Source: Compare the Market, based on 51% of customers who compared quotes in December 2025.
Is comprehensive car insurance more expensive?
No. Comprehensive car insurance is often the cheapest of the three cover levels because drivers who choose it tend to be lower risk in the eyes of insurers.
This catches most people off guard. The pricing data above shows comprehensive at £606 versus £1,343 for third-party only. That’s less than half the price for more than double the cover.
Why comprehensive can cost less than third-party
Insurers price risk, not cover level. Drivers who choose third-party only tend to be younger, less experienced, or driving older vehicles in higher-risk areas. That statistical profile pushes TPO premiums up.
Meanwhile, drivers who choose comprehensive tend to be more established, with longer driving histories and lower claims frequency. Even first-car buyers can find comprehensive cheaper once they compare quotes.
What affects the cost of your premium
Your age, postcode, vehicle, driving history, and insurance group all feed into your premium. A 25-year-old in central London pays more than a 45-year-old in rural Devon, regardless of cover level.
Voluntary excess, annual mileage, and where you park overnight also make a difference. The ABI confirms that parking location affects claims patterns; industry data shows drivers who park on a driveway pay significantly less than those who park on the street.
Related: How Is Car Insurance Calculated?
What isn’t covered by a comprehensive policy?
Comprehensive insurance does not cover wear and tear, mechanical breakdown, deliberate damage, or any modifications you haven’t declared to your insurer.
The word “comprehensive” is misleading. It’s the highest level of motor insurance, but it’s not unlimited cover. Several common scenarios fall outside the policy.
Wear and tear and mechanical breakdown
Standard policies won’t pay for worn tyres, brake pads, clutch failure, or engine problems caused by age and use. These are maintenance costs, not insurable events.
If you want mechanical breakdown cover, you’ll need a separate breakdown policy or a warranty product.
Deliberate damage and undeclared modifications
Any damage you cause intentionally, or while driving recklessly, can void your claim entirely. Convicted drivers with serious offences like drink-driving may also face claim refusals.
Modifications you haven’t told your insurer about, such as aftermarket exhausts, lowered suspension, or alloy wheels, may not be covered. Always declare changes to your vehicle.
Driving other cars
Many drivers assume comprehensive cover lets them drive other people’s cars. It doesn’t, unless your policy specifically includes driving other cars (DOC) cover.
Even when DOC is included, it’s usually limited to third-party only and restricted to the policyholder (not named drivers). Always check your certificate of motor insurance before driving someone else’s car.
Related: What Is Car Insurance Excess and How Does It Work?
Which add-ons are worth getting with comprehensive cover?
Breakdown cover, motor legal protection, and no-claims bonus protection are the three add-ons most drivers find valuable. Whether you need them depends on your circumstances.
Some comprehensive policies bundle these in. Others charge extra. Check what’s included before paying for something you already have.
Breakdown cover
Covers roadside assistance, home start, and national recovery if your car breaks down. Some policies include European recovery too.
If you already have breakdown cover through a provider like the AA or RAC, you don’t need to add it to your insurance as well. Check for overlap before buying.
Motor legal protection
Covers legal fees if you need to pursue an uninsured driver for compensation, or if a claim dispute goes to court. Typically provides up to £100,000 in legal costs.
Claims involving uninsured or hit-and-run drivers can be complex. Motor legal protection pays for a solicitor to handle your case.
No-claims bonus protection
Protects your no-claims discount if you make a fault claim. Without it, a single claim can wipe out years of built-up discount.
NCD protection doesn’t freeze your premium. Your base price may still rise after a claim, but the discount percentage stays intact.
Courtesy car and key cover
A courtesy car keeps you mobile while yours is being repaired. Some policies include this for repairs but not for write-offs, so check the terms.
Key cover pays to replace lost, stolen, or damaged car keys, including reprogramming the immobiliser. Replacement keys for modern cars can cost £200 to £500.
How do you choose the right comprehensive policy?
Compare what’s included in each policy, not just the headline premium. Two policies at the same price can offer very different levels of protection.
Start with a comparison site to get a range of quotes, then look at the detail before you buy.
Compare beyond the premium
Check whether breakdown cover, courtesy car, and windscreen repair are included or charged as extras. A black box policy can bring the premium down further if you’re a safe driver.
If you insure multiple vehicles at the same address, a multi-car policy may reduce the overall cost.
Check the excess amounts
Low premiums often come with high excesses. Make sure you could afford to pay the total excess (compulsory plus voluntary) if you needed to claim tomorrow.
Raising your voluntary excess from £100 to £500 reduces the premium, but only do this if you have the cash available. Being unable to pay the excess means you can’t claim.
Read the exclusions
Every policy has exclusions. Common ones include mileage caps, age limits on named drivers, and limits on classic car or electric vehicle cover.
If you’re under 25, check whether the policy restricts driving hours or requires a telematics device. Some comprehensive policies aimed at younger drivers come with conditions.
Frequently Asked Questions (FAQs)
For most drivers, yes. Comprehensive is often cheaper than third-party only and covers damage to your own vehicle, which neither of the other levels does. If your car would be expensive to repair or replace, comprehensive is usually the best value.
No. Comprehensive cover does not automatically let you drive other people’s cars. Some policies include driving other cars (DOC) cover, but it’s usually limited to third-party only and restricted to the policyholder. Always check your certificate of motor insurance.
Many policies include basic third-party cover for driving in EU and Green Card countries. Full comprehensive cover abroad is not always included; check your policy’s territorial limits before travelling.
Personal belongings stolen from inside your car are not always covered by comprehensive insurance. Some policies include a small amount of cover; others exclude it entirely. Check the policy wording or add personal belongings cover as an extra.
Yes, most insurers allow mid-term upgrades. You’ll usually pay the difference in premium, and there may be a small administration fee. Contact your insurer directly to arrange the change.
Not always. Some comprehensive policies include a courtesy car while yours is being repaired, but it’s not guaranteed. Check whether it’s included as standard or available as a paid add-on.
Insurers price risk, not cover level. Drivers who choose third-party only tend to be younger and statistically more likely to claim. This pushes TPO premiums above comprehensive for many driver profiles.
Only if the engine failure is caused by an accident, vandalism, or a covered event like flooding. General mechanical breakdown caused by wear and tear is not covered. You’d need a separate breakdown or warranty product for that.
Yes. If your car is written off in an accident, your insurer will pay out the market value of the vehicle at the time of the loss, minus your excess. This is not the same as what you paid for the car; it’s what it was worth immediately before the accident.
Yes. Malicious damage, including keying, smashed windows, and deliberate scratches, is covered by comprehensive insurance. You’ll usually need a crime reference number from the police to support your claim.