Smart Lock Installation: reading the quote

Smart locks come in the same finish families as ordinary hardware: satin nickel, matte black, aged bronze, polished brass and chrome. The locksmith matches the finish to your handle set, or swaps the handle at the same time so the door reads as one piece. Where an old finish has weathered to a shade no new part will match, replacing the knob or lever alongside the deadbolt is the tidy answer, and the two are often sold as a matching pair.

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.

Storm door and weather adjustments

Where the entrance calls for a vented storm door panel, a keypad shield or a model rated for heat and cold exposure, those items are named separately so you can choose them or not.

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.