Invest in solid doors. Another way you can improve the security of your home is to replace any hollow-core doors with solid wood or metal. Hollow-core doors are weaker and more vulnerable to shattering than a solid wooden frame. Sure, solid exterior doors are more expensive, but they’re also much more durable and nearly impossible to break down. Avoid doors with windows in them. A super secure lock doesn’t do any good if the thief can just break a window and reach inside. So avoid installing doors with windows. If you need to see out, add a peephole. Reinforce your doors. Remember, thieves say they go for the front door first. Invest in deadbolts, strike plates, and chain locks to make your home much more challenging to break into. A sturdy door, combined with a proper home security system, offers the best possible protection from thieves and other intruders.