Matter contact sensor on Home Assistant
For contact sensors, Home Assistant supports pairing, control and automation triggers. It does not support automation actions. Our confidence in this answer is High.
At a glance
| Answer | Home Assistant |
|---|---|
| Pairing | Y |
| Control | Y |
| Starts an automation | Y |
| Controlled by an automation | N |
| Confidence | High |
| Matter spec | 1.0+ |
What this means
All four answers are confirmed for this device type on this platform. Individual products can still implement less than the device type — check the product notes before you buy.
Requirements
Hub requirement: Home Assistant Matter Server (HA OS recommended). Thread border router for Thread devices.
Matter spec: 1.0+.
Confidence
We have direct, dated evidence for most of these answers, including native hands-on reports where available.
Sources
- home-assistant.io · official · 2026-10-17
- home-assistant.io · official · 2026-10-17
- home-assistant.io · official · 2026-10-17
- techtest.org · test · 2026-10-17
- teknikihemmet.se · test · 2026-10-17
- techteamgb.co.uk · test · 2026-10-17
- github.com · community · 2026-10-17
Frequently asked questions
Does a Matter contact sensor work with Home Assistant?
Home Assistant pairs a Matter contact sensor and shows open or closed state — the classic automation starter. High confidence, checked 2026-10-17. Home Assistant can control a Matter contact sensor from its app, including open/closed state (High, checked 2026-10-17).
Can a Matter contact sensor trigger a Home Assistant automation?
Yes — a Matter contact sensor opening or closing can start a Home Assistant automation. As an action, Home Assistant cannot use a Matter contact sensor in an automation (High, checked 2026-10-17).
Does a Matter contact sensor need a hub on Home Assistant?
Home Assistant needs its Matter controller before a Matter contact sensor will report.
Next steps
- All Home Assistant answers for contact sensors, side by side — the full contact sensor matrix across every platform.
- Compare Home Assistant with another platform — pairing, control, triggers and actions in one table.
- Check whether your setup will work — answer a few questions and get a verdict with caveats.
- Matter products of this type — tested products with their own notes and sources.
- Matter on Home Assistant: every device type
- Contact sensor support guide
- All platforms compared
- How to check Matter certification
- Matter firmware updates on each platform
- How we check — evidence rules, confidence ratings and how often we re-check.
Other platforms for contact sensors
- Apple Home — supports pairing, control and automation triggers High
- Google Home — supports pairing, control and automation triggers High
- Amazon Alexa — supports pairing, control and automation triggers High
- SmartThings — supports pairing, control and automation triggers High
- Homey — supports pairing, control and automation triggers Med
- Hubitat — no confirmed support Med