igloohome
igloohome Retrofit Lock
- Cloud integration
- Cloud required
- Wi-Fi
- Bluetooth
Prices verified September 2026
See more smart locks picks on our Amazon storefront →Our verdict
The Airbnb host's favourite: clips over an existing euro-cylinder thumbturn with no drilling — a genuine DIY fit, not a locksmith job like igloohome's mortise lock — and generates offline, algorithm-based PIN codes that work with no internet or bridge, ideal for guest access. Runs on 4 AA batteries rated up to 12 months. Home Assistant support is official (added in HA 2025.2) but cloud-only: it needs an active iglooaccess subscription (around $2 USD per lock per month after a 30-day trial) plus the optional Wi-Fi Bridge for any remote or HA control, since Bluetooth alone can't reach the cloud API.
What can Home Assistant control on the igloohome Retrofit Lock?
| Control | Type | What it does |
|---|---|---|
| Lock | Lock | Lock/unlock/open sent as commands through the linked Wi-Fi Bridge; only appears if a bridge is already registered to this device, and reports an assumed state since the API can't confirm actual thumbturn position. |
| Battery | Sensor (%) | Cloud-polled roughly hourly; goes unavailable rather than showing a stale value if a poll fails. |
| PIN code management | Unsupported | Custom-PIN create/delete is already authorised by HA's OAuth scope but nothing calls it, so this lock's signature offline-PIN feature stays app-only. |
| Activity log | Unsupported | No HA entity surfaces who unlocked the thumbturn or when. |
| API credentials | Config | Needs a client ID/secret generated on igloohome's developer-access page before setup will accept them; rotating the secret forces a full remove-and-re-add. |
This uses the exact same official cloud-based igloohome HA integration as the Mortise 2+, so the technical picture is identical: HA only exposes lock/unlock/open, and since the API has no state-query endpoint, the lock entity runs on an assumed state rather than confirmed door position. Battery is cloud-polled roughly once an hour and drops to unavailable rather than showing stale data if a poll fails. PIN code management and activity-log history are already authorised by the OAuth scope HA requests but aren't wired to any entity, so they stay app-only, and API client ID/secret come from a separate developer-access page — a rotated secret means removing and re-adding the integration, not a reauth prompt.
Specs
| battery | 4 x AA alkaline batteries, rated up to 12 months |
|---|---|
| door fit | Euro-profile cylinder retrofit over existing thumbturn, handle above cylinder, min. 32mm backset |
| dimensions | 62 (W) x 132 (H) x 55 (T) mm, 0.4kg net — clips straight over the existing thumbturn, no drilling required |
| installation | Self-install: clamps over the existing euro-cylinder thumbturn from inside the door, no drilling — unlike igloohome's Mortise 2+, which needs a locksmith |
| offline access | Time-limited PIN codes work without any bridge or internet connection |
| subscription cost | iglooaccess: 30-day free trial, then roughly $2 USD per active lock per month for remote/app/HA control, on top of the £159.99 hardware price |
| hub required for ha | Wi-Fi Bridge (sold separately) plus an active iglooaccess subscription and API client ID/secret |
How does the igloohome Retrofit Lock compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| igloohome Retrofit Lock (this product) | £159.99 | Bluetooth, Wi-Fi | Cloud | Cloud |
| Aqara Smart Lock U200 | £169.99 | Thread, Matter, Bluetooth | Yes | Native |
| Aqara Smart Lock U200 Lite | £105.99 | Thread, Matter, Bluetooth | Yes | Native |
| Aqara Smart Rim Lock U500 | £279.98 | Matter, Thread, Bluetooth | Yes | Native |
Frequently asked questions
- Does the igloohome Retrofit Lock work with Home Assistant locally?
- Partly. The igloohome Retrofit Lock connects to Home Assistant through the manufacturer's cloud integration (igloohome), which relies on the igloohome cloud. It works in Home Assistant, but commands go via the internet and stop working during an outage of your connection or the igloohome service.
- Which protocol does the igloohome Retrofit Lock use, and do I need a hub?
- The igloohome Retrofit Lock uses Bluetooth and Wi-Fi. To pair it with Home Assistant you need a Bluetooth adapter on your Home Assistant host or an ESPHome Bluetooth proxy; or no hub — it joins your Wi-Fi network directly. igloohome's own hub is not required when you integrate through the manufacturer's cloud integration (igloohome).
- How much does the igloohome Retrofit Lock cost in the UK?
- The lowest price we have listed for the igloohome Retrofit Lock is £159.99 at igloohome UK store. Prices were last checked in September 2026 and change often, so confirm on the retailer's page before buying.