Want to increase your security by adding a door viewer? Professional peephole installation will efficiently provide an additional level of safety to your exterior doors. Hill Key Masters offers a range of security solutions for all types of doors, windows and even for your cars. No matter if you have a PVC, metal or wooden doors, our skilled locksmiths will easily install a door viewer or change your locks. We also offer innovative peepholes with small camera connected to a LCD screen to upgrade your existing peephole, so you can easily avoid any unwanted visitors or solicitors without alerting them youíre at home. Call us at 919-374-3858. Hill Key Masters specializes in high security locks, install master key systems, install panic hardware, re-keying, safes, security systems, 24/7 service, break-in repairs, cars unlocked, 247 emergency service, homes unlocked, locks re-keyed, peephole installation, radio-dispatched, remove broken keys, safes unlocked, car keys made, work evenings, work weekends, dead-bolts, digital door locks, door locks, gun locks, window bars, window locks, window gates, ignition switch keys, transponder keys, and broken key extractions.