Access Control Installation: what shapes the quote

A proximity card or fob held near a reader, a code typed on a keypad, or a mobile credential read from a phone are all in common use, and a single building can mix them by door or by person. Cards and fobs are simple to issue and switch off individually; a keypad needs no card to lose but a shared code eventually gets passed around; a mobile credential ties entry to a device the person already carries.

How much door and frame preparation is needed

A frame that already suits an electric strike needs less preparation than one that must be mortised, reinforced, or matched with a different strike body, and an older or non-standard door can add its own preparation.

How many doors are being controlled

A single entrance and a building with a dozen openings are different jobs in scale rather than kind, and the number of doors, readers and locks involved is the largest single factor in sizing the work.

The building's age and frame material

A modern hollow metal frame generally accepts new hardware with less adjustment than an older wood frame or a historic building, where matching the existing appearance and construction takes extra care.