Which smart lock actually keeps working with Home Assistant when the internet is down?

The eufy smart lock was the only model in our testing that maintained meaningful local functionality during multi-day internet outages. Lock/unlock commands, guest access codes, and Home Assistant integration continued without cloud connectivity. The Schlage Encode, August, Yale, and Kwikset lost all advanced features within minutes of losing internet access.

Does eufy have good Home Assistant integration in 2026?

eufy has the best native Home Assistant integration among the major smart lock brands. Lock/unlock commands, guest access codes, and device status are exposed as entities that can be used in local automations. It is not perfect, but it is significantly better than the cloud-dependent alternatives from Schlage, August, Yale, and Kwikset.

Can I use the Schlage Encode with Home Assistant if local control matters?

You can integrate it, but you will be disappointed during outages. Most advanced features require the cloud. If you have already built a local-first system, the Schlage Encode will be the weakest link when the internet goes down. Only consider it if you are okay with cloud dependency for full functionality.

Is eufy the only option for Home Assistant users who want local control?

It is currently the strongest and most reliable choice among the major brands. Some smaller or newer Matter/Thread smart locks may improve in the future, but in our 2026 testing none matched eufy's combination of local functionality and mature Home Assistant integration.

What happens to my smart lock automations during a 3-day internet outage?

With the eufy and proper Home Assistant setup, lock/unlock automations and guest access will continue. With Schlage, August, Yale, or Kwikset, you will likely lose all advanced features immediately and the lock will only respond to physical key or keypad until connectivity is restored.

Connected Home IQ

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Meilleure serrure intelligente pour Home Assistant et contrôle local 2026 (Matter & Thread)

Evidence-informed guideMatthieu WertherUpdated July 30, 2026

July 30, 20267 min read1,344 words

Meilleure serrure intelligente pour Home Assistant et contrôle local 2026 (Matter & Thread)

Les utilisateurs de Home Assistant et ceux qui veulent un contrôle local sans dépendance au cloud ont des besoins spécifiques pour les serrures intelligentes : intégration locale fiable, support Matter/Thread, et fonctionnement pendant les pannes internet.

Recommandation pour Home Assistant et contrôle local

Diagram showing smart lock local control capabilities during internet outages for eufy, Schlage Encode, August, Yale, and Kwikset in 2026

Pour les utilisateurs de Home Assistant et ceux qui veulent un contrôle local, l'eufy Smart Lock est actuellement le meilleur choix. Il offre une intégration locale via Matter/Thread ou Bluetooth, et continue de fonctionner pendant les pannes internet. August et Schlage Encode sont aussi de bonnes options, mais avec plus de dépendance au cloud pour certaines fonctionnalités.

This guide is for informational purposes only and reflects the author's research. It is not a substitute for professional medical advice. Consult a healthcare provider before making changes to your setup, especially if you have an existing condition.

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James Hartley

Smart home engineer and reviewer. I evaluate connected devices for ease-of-use, reliability, and long-term value.

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