Things change all the time. You get older, your family size changes, your household possessions increase, your home increases in value, and so on. But your insurance policy will stay the same unless you change it. Some policies have a built in schedule of change, but not all. You should re-evaluate your policies every year to make sure they are up to date with your needs. Occasionally you will need an insurance analysis to determine how you can fill the gaps in your insurance.
Go over your policy to find any gaps in your coverage. Does it give you adequate coverage for your needs? Are you underinsured because your property has increased in value? Could you be overinsured, paying too high a premium? If you have installed theft deterrents in your house or car, is this reflected in your rates? Do you have any new drivers you need to add to your car insurance? Any of these things mean you probably need to change your policy.
If you think you need to renegotiate or even change your insurance policy, you may want to see an expert to work out the details. There are many people who can help you. You can consult a broker, who will be used to dealing with multiple companies and different types of policies. If you are pleased with your insurance company, you can consult an agent in your insurance company. A broker is probably your best bet. But beware, there are unscrupulous brokers out there. If the broker you consult is not interested in answering your questions, or seems more interested in selling you an insurance policy, then find someone else! Also if what he says does not agree with what you have read in your policy, take it home and read it carefully to see if he is right. There are plenty of quality brokers and insurance agents out there, don't settle for anyone who doesn't have your best interests at heart.
If you decide you need a new policy, do some research. Find out about potential companies either on the internet or by calling them up. Most companies will give you a quote over the phone or online. Make sure you get all the details the quote is based on, so that you can determine which the best is for you. Don't just go for the cheapest quote, it may not adequately address your needs. You may get a low quote from a company you are not crazy about. If you find a company you like, or that you already use for another policy, see if they can match the lowest quote you get. Most insurance agents have some room to maneuver on rates. With a little work, you can probably improve your insurance coverage to cover all your needs. Take the time now to save yourself some money and stress later on!