Window Security Bar - HIDE rebar inside* Found this awesome Product at qcidirect.com
Decorative Window Bars - the next step. Just be sure they have a quick release, or you'll have to remove them when you sell. Fire code and all. :)
GLASSESSENTIAL® Folding Window Grilles are designed to provide elegant look, strong security barrier with ease of operation.
On our first floor we installed 2 inch door latches on the window frame for security. Works as a window stop and no one can lift our windows higher than the latch. Yet we just retract it if we want to open the window all the way.
Lexan-ClearBars - Transparent Burglar Bars
Window Security Grills Burglar Bars
8 Mil Security Window Film 30" Wide x 6.5 ft. Roll
Installing pin locks on double-hung windows is a good home security tip.
Stay safe by installing window safety locks. Keep burglars out, keep kids from falling out the window. houseofhepworths.com #safety #window #locks
SECURE doors & windows - http://www.hardenedstructures.com/residential-doors.php