If you need additional coverage (insurance for simple theft away from home, for example), you can generally have your insurance provider adjust your policy to include the coverage you need.
If you move to a new address, you have to report the change to your insurance provider. They will issue a new policy for the new address. The insurance premium may be increased or decreased based on the size and location of your new home.
It is also important to inform your insurance provider if the total value of your personal possessions increases or decreases substantially.
If the value of your property increases because you buy new things or items gain value over time, having your insurance provider adjust your coverage to match will prevent underinsurance. That is significant because if the sum insured by your policy does not cover the total value of all your possessions, then the insurance provider can reduce benefits in keeping with the difference if a hazard occurs.
If the value of your stuff goes down because you sell things, or their value decreases with age, then having your insurer reduce the sum insured can lower your insurance premiums.
If you want to change your insurance provider, you will have to give the required notice before your contract’s term ends. Most household insurance offers have a three-month notice period, but one-month and six-month notice periods are also used.
You can find useful information about terminating an insurance policy in this guide.