Yes, home security signs will deter intrusions in Napa
Many studies say security signs are a good idea when considering how to deter an intrusion. The reasoning is that the thief will discover the sign and instantly decide that your home is a poor choice to target. After all, why get concerned about surveillance systems and alarms when a intruder can move onto a more vulnerable home somewhere else?
With that being said, the same studies note that a security sign ranks fairly low as a burglary deterrent. A smartly positioned sign primarily puts off less experienced prowlers, but veteran crooks might want to find the extent of security that is actually shielding your home before moving on. Other equipment, like outdoor video cameras, have greater success at keeping an intruder away.