Insurance & Protection

When to Get Home Insurance When Buying a House

Stuart Crispe· Updated 24 August 2026· 5 min read

When to Get Home Insurance When Buying a House

From the moment you exchange contracts: not completion, and not when you get the keys.

That surprises people, and it is the expensive mistake. At exchange the property becomes your legal responsibility even though the seller is still living in it and you may not set foot in it for weeks. If a pipe bursts or a fire starts in that window, it is your problem, and your mortgage lender will require buildings cover to be in place from exchange in any case.

Contents insurance is different: that only needs to start on completion day, when your possessions actually arrive.

At a glance

Buildings cover needed from
Exchange of contracts
Legally liable from
Point of exchange
Contents cover needed from
Completion
Lender requirement
Buildings insurance

Key Takeaways:

  • You are legally liable for damages caused to the property from point of exchange onwards.
  • Your Mortgage adviser can arrange your insurance to be put in place at the right time.
  • It is a requirement by Mortgage lenders to have buildings insurance in place from exchange.
  • There are no legal requirements, or lender requirements for contents insurance to be in place. However, it is advised.

When to get home insurance when buying a house?

You need your building insurance policy to start the day that you exchange contracts. It is from that point that you are liable for any damages to the property.

For example, if there is a fire, you will have to pay for the cost of the damages. It is not the responsibility of the seller to fix this damage. By having insurance in place, you will be covered financially against the impact, and can make a claim for the cost.

How do you arrange building insurance in advance of exchange of contracts?

Your Mortgage adviser will be able to provide options for you on your home insurance needs. If you decide to proceed with them, you can ask them to manage the start date of your policy on your behalf.

They will be notified by the conveyancer when exchange of contracts is taking place. Your Mortgage adviser will begin the home insurance start date from then.

When do you need to get buildings insurance if you are buying a flat?

Your lender will still require that there is a building insurance in place even if you are buying a flat. The difference is that in most cases, you will not be expected to organise this yourself.

It will be covered by your leasehold building management company. You will be required to provide evidence of this to your conveyancer before exchange of contracts.

Do you need to have building insurance when buying a house?

If you are buying with a mortgage, you must have building insurance in place at point of exchange. This will be a mandatory requirement by the lender.

Having building insurance will continue to be a requirement all the while you have the mortgage and this is to protect the lender's security for the mortgage. If you do not have a mortgage on the property, it is not a legal requirement for you to have buildings insurance.

However, you should strongly consider the implications of not insuring the property, and what that could mean financially in the worst-case scenario.

What happens if you don't get building insurance for Exchange of contracts?

If you fail to arrange building insurance for the point of exchange, you will be liable for any damages to the property. If damage occurs and you can't pay, you are still contractually bound to complete the purchase, and the seller will expect the money for the sale regardless of the property's condition.

In short, you could end up paying for a home that has been damaged, with no insurer to fall back on.

If the house burns down and you do not have insurance in place, you may still have the mortgage to pay back. It is likely that the lender will begin legal proceedings against you, as you will not have kept to the terms of your mortgage.

To avoid this, it's worth understanding what happens after your mortgage offer and lining up cover in good time. Buildings insurance also protects against issues your standard cover may exclude, so it's worth checking the detail: for example, whether your policy would respond to damp or cracked walls and render.

When do you need to get contents insurance when buying a house?

Contents refers to items that can be moved inside the house. You will not be liable for the contents in the house until these contents belong to you.

That means, from completion onwards you are liable for any damages. However, it is not a requirement of the mortgage lender or a legal requirement to have contents insurance.

It is up to you whether you decide to insure for contents, but it is advisable. You will begin to accumulate a lot of items over time.

The value of all your contents should be assessed for you to understand what the financial impact could be in a worst-case scenario. You should then cover your contents for that value or higher, to ensure you have the right level of cover in place.

Be aware that if you have fixtures and fittings in the property, these will be classed as buildings and will need covering.

When comparing policies, it's also worth weighing up optional extras such as home insurance legal cover, which can help with disputes and unexpected legal costs.

When to get Home Insurance when buying a house - Final thoughts

It's a risk if you do not know when to get home insurance when buying a house. Failing to cover yourself properly could result in either be a legal battle with the vendors or a legal battle with the lender.

In our view, it is not worth the risk of not being fully insured when it comes to an asset that is likely to be one of the most expensive items you will buy in your lifetime.

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This insight is general information, not financial advice. Your circumstances are unique, so speak to a suitably qualified, FCA-authorised professional before acting.