Look at the prices for all of the security systems that you are interested in. Prices can differ a lot among companies for the same type of protection. Obtain quotes from a minimum of three home security companies before making a final decision.
Before doing anything else, install new locks in your home. It might be that you have an angry ex-roommate or a bitter ex-partner, so changed locks will boost your security. It is pretty cheap and the job won't take more than a few hours.
Do you have a more realistic concept of hom