There are a lot of DIY home security systems on the market that allows one the flexibility and security desired. There are good ones that sell for bargain prices and there are a lot of bad ones so ask your insurance form for recommendations as to the brands and types that would make a difference in your insurance coverage. Most generally require perimeter warning systems that detects intruders well before they get to the house itself. Proximity lighting and sensors are quite cheap and deter thieves for it makes them vulnerable. Sonic sensors that sends out sound waves through an open space such as a garage, detecting the slightest movement or change and sounding an alarm.
Before you decide on placing a system, as stated, try to get some tips from your agent or insurance firm as to which they prefer and what amount of security they need fro you to get necessary perks such as discounts and other offers. They can even have a partnership with certain private security providers which allows the firm to keep tabs on your property real-time thus increasing the security of your home.