Who it’s for
- Renovation & Retrofit
- US or Canadian project owners working with an appropriately qualified local installer
The project challenge
- An older door can bind even when a new lock's electronics work.
What the system should achieve
- Pass manual bolt alignment and door-preparation checks before adding smart control.
Recommended system architecture
- Authorized resident credential → residential lock → owner-controlled access administration
- Keep the mechanical fallback, battery checks and credential-revocation process explicit.
Equipment & ecosystem choices
- Residential deadbolt candidates such as Aqara U100, only when exact door and regional model are approved
- Mechanical fallback and a separate contact sensor if door-open confirmation is needed
Installation & technical requirements
- Survey bore, backset, thickness, handing, strike alignment and door rating; perform free-egress and mechanical operation checks with the responsible installer.
- Site acceptance focus: Pass manual bolt alignment and door-preparation checks before adding smart control.
Compatibility & construction constraints
- No automatic unlock based on camera recognition or a doorbell press. Commercial, fire-rated, shared-entry and managed-access use needs a separately approved system.
- Door condition, backset and local approval are not known from a photo alone.
Make it your own
- For existing-door smart-lock retrofit, confirm room/door/zone counts, agreed controls, notification recipients and installation stage.
- Specific decision: Door condition, backset and local approval are not known from a photo alone.
Preliminary equipment plan
- One approved lock per accepted residential deadbolt door; batteries/keys by manufacturer set; hubs only for supported remote functions.
- Scale by the surveyed scope for existing-door smart-lock retrofit, not by a fixed package advertised without a site schedule.
What shapes the budget
- Door modification, lock grade, credential workflow, connectivity and mechanical fallback requirements.
- Country/city, labor, taxes, shipping, warranty route and confirmed supply source; no price or stock is assumed.


