The buildings and the hardware
The housing stock in a place like Middletown Township affects the hardware we see. Older single-family homes often have mortise locks or heavy wooden doors with worn strikes that need reinforcing; replacement parts can be specific to an older manufacturer. Multiunit buildings and newer subdivisions tend toward cylindrical locksets and modern deadbolts, which are straightforward to rekey or swap. Small commercial storefronts use rim cylinders, exit devices and sometimes keyed-alike systems, so the job can mean matching cores and ensuring multiple doors work together. Door frames, threshold wear, and past retrofit work change the approach more than any brand name.
