[Custom Integration] U by Moen Smart Faucet (Cloud Polling)

alexbbt · January 23, 2026, 4:41am

Update: This integration is now in the HACS default store — no custom repository needed. Search for “Moen Smart Water” in HACS to install.

Hi everyone

I wanted to share a custom Home Assistant integration I’ve been working on for U by Moen / Moen Smart Faucets (MotionSense / Smart Water Network models).

I built this after getting a new Moen faucet and being frustrated by how limited the official Alexa integration was. I wanted full control and visibility directly in Home Assistant.

After reverse-engineering the API used by the Moen iOS app, I was able to replicate the faucet’s functionality and expose it as Home Assistant entities and services.

Important:
This integration is cloud-based and polls Moen’s API.
There is no local control.

What it does

The integration exposes Moen smart faucets as Home Assistant entities, allowing:

Open / close control (valve entity)
Adjustable flow rate
Temperature control and presets
Volume-based dispensing
Start / stop water actions
Sensors for:
- Connection status
- Battery level
- Firmware version
- Water usage
- Last update timestamps

Services / Actions

The integration also exposes custom Home Assistant services for programmatic control, including:

moen_smart_water.start_water
moen_smart_water.stop_water
moen_smart_water.dispense_volume

These services can be used from automations, scripts, or Developer Tools → Services.

Screenshots

Below are a few examples from my setup showing the entities and controls exposed in Home Assistant:

Installation

The integration is in the default HACS store. You can install it via HACS by searching for Moen Smart Water (Settings → Add-ons → HACS → Integrations → Explore & Download), or install manually.

GitHub repository:

Notes / Limitations

Cloud polling integration (no local LAN control)
Uses an unofficial, reverse-engineered API
Requires Moen account credentials
API behavior may change if Moen updates their backend
Not recommended for safety-critical or unattended automations

Tested Devices

MotionSense Wave Kitchen Faucet (Cia series)

Other Moen smart faucets may work but are currently untested.

Feedback

If you try this out, I’d love to hear:

Which faucet model you’re using
Whether everything works as expected
Any issues or missing features you’d like to see

Bug reports and pull requests are welcome. Thanks!

drothenberger · January 23, 2026, 5:47pm

I just tried this out with my MotionSense Wave (also CIA series) and it works like a treat. Thanks for making this!

RossT · January 25, 2026, 3:39am

Thanks! This is perfect!!

PatchTL · January 29, 2026, 3:01pm

I’m using it with Moen’s 7864EVSRS and it is working perfectly. Thank you for creating this integration!

alexbbt · January 29, 2026, 6:10pm

Thanks for the feedback! I’ve added the 7864EVSRS (Sleek series) to the supported models section in the README so others know it’s tested and working. Glad it’s working well for you!

Island_Three · February 3, 2026, 3:30pm

Firstly, thanks for this! I have been using with a Moen Sinema (S7235EV2) and this has been working well.

However, the most recent 1.1.1 update seems to have broken the “coldest”, “hottest”, and “warm” buttons.

alexbbt · February 10, 2026, 6:08am

Hi @Island_Three — it looks like you had one of my pre-release versions installed. I’ve moved away from those vague buttons in the 1.x.x releases in favor of a temperature slider.

If the faucet is running, the slider sends commands to adjust the temperature in real time.
If the faucet is not running, the selected temperature is stored and applied with the next start command.

I’ve found this approach to be cleaner overall, but I’m open to adding optional preset temperature buttons back that would start the faucet at full flow using the selected preset temperature.