Smart Lock Installation: reading the quote

Reputable models encrypt what passes between the lock, the phone and the maker's servers, and the ordinary risks are more mundane: a code shared too widely, a default code never changed, or an account with a weak password. The installation addresses those directly by deleting factory codes, giving each person their own, and setting up your account with a strong password and two-step sign-in where offered. Firmware updates from the app close gaps as they are found, so accept them.

Door thickness and material

Thick doors need an extension kit, very thin or glass-panelled doors need particular models, and steel or fibreglass skins take longer to cut cleanly than wood. Each of these shapes both the parts list and the time.

Retrofit versus full replacement

An interior-only unit that turns your existing deadbolt involves less door work than a complete new deadbolt with a keypad outside, and the two are quoted differently in both hardware and time.

Condition and fit of the door

A door that already closes true with standard holes is the simplest install. One that needs hinges shimmed, a strike pocket deepened or holes enlarged adds preparation time, and that work is quoted as its own line.