There is a difference between an insurance broker and insurance company. The broker does not provide the service just foes the searching to find the right policy and receives a commission from the insurance company for doing so. Insurance companies provided the insurance direct or has it underwritten in their name.
It can be difficult for price comparison websites to deal with free extras or bulk purchases where you buy more than one type of home contents insurance to get a discount. You should always be aware that comparison sites can save you time but not always money.
Where you live can have a direct impact on your next cheap house insurance. This could include a high risk of burglary, or even changing weather systems means you are now in a high-risk flood area. They will always ask for a postcode to ascertain this.
Many never think of the cost to replace the small things when considering cheap house insurance. An inventory may be done on larger items, but the smaller ones get forgotten, until you have to make a claim.