Question 1

Is Home Assistant actually mature, or is it a hobby project?

Accepted Answer

Mature and institutionally backed. It is owned by the Open Home Foundation, a Swiss non-profit formed in 2024 that holds 250+ projects and funds ~52 salaried engineers. There are no shareholders and no exit — nobody can buy it and kill it. Scale: 663,000 installs report in voluntarily, and HA estimates fewer than a quarter opt in — so the real base is north of 2.6 million homes. 21,000 people contributed code in one year.

Question 2

What does it cost you to run, ongoing?

Accepted Answer

$65/year for Home Assistant Cloud, and that is genuinely optional. There is no per-device fee, no dealer licensing, no per-room charge, and no feature paywall. Cloud includes: remote access with real TLS and no port forwarding, Alexa + Google Assistant, premium neural voices for text-to-speech and speech recognition, webhooks, improved camera streaming, and off-site backup.

Question 3

How does this compare to Control4 or Crestron?

Accepted Answer

HA wins on cost, device breadth and ownership. It loses on accountability. A Control4 whole-home job is commonly quoted by integrators at $100K–250K; the equivalent HA job is typically an order of magnitude less. But Control4 comes with a vendor to blame, and HA comes with you. HA wins: 3,000+ brands, true local control, energy dashboards, legacy IR/RF/Z-Wave/Modbus retrofit, no vendor kill-switch, you can hire any Home Assistant professional afterward. HA loses: no SLA, no LTS, no dealer program you can market, no fleet tooling, no first-party AV matrix story.

Question 4

How do I know a device will actually work before I spec it?

Accepted Answer

Look for the Works with Home Assistant badge. It is the only third-party guarantee that a device works without the vendor’s cloud, has a Gold-tier-or-better integration someone is accountable for, and can be firmware-updated from inside HA — meaning no truck roll to patch a lock. Certified as of Aug 2026 (~25 brands): Aqara, Shelly, Reolink, SwitchBot, Eve, Zooz, Leviton, Konnected, Nuki, Ultraloq, ThirdReality, HomeWizard, frient, ubisys, Heatit, Heiman, AirGradient, Apollo Automation, MotionBlinds, BEGA, ELTAKO, FireAvert, IoTorero, Sensereo, zunzunbee, HomeSeer, Jasco.

Question 5

What hardware do I put in as the hub?

Accepted Answer

Home Assistant Green ($199) for small-to-mid jobs — turnkey, warrantied, funds the project. An Intel N100 mini-PC for anything big: full-local voice, lots of cameras, a large history database. Radios (Green has none built in): Connect ZBT-2 $49 for Zigbee or Thread — buy two if you need both. Connect ZWA-2 $69 for Z-Wave 800 with Long Range. Voice PE $69 per room for local voice.

Question 6

Can it integrate with the Control4 / Crestron / Savant system they already have?

Accepted Answer

Mostly no. Control4 and Savant are effectively closed with no HA integration. Crestron can be bridged with custom modules or a REST shim, but that is custom development, not an integration. Position it as an addition, not a replacement. HA sits alongside, picks up everything the closed system cannot reach — cameras, energy, presence, notifications, appliances — and triggers the pro system via whatever hooks exist.

Question 7

Can it dim, do color, and run scenes across every brand at once?

Accepted Answer

Yes — that is HA’s home turf. Dimming, color temperature, RGB/RGBWW, transitions and scenes work identically across Zigbee, Z-Wave, Matter, Wi-Fi and Lutron, from one interface. One light domain covers everything. Scenes can snapshot current state and restore it afterward, which is how announcement and alert automations put the room back exactly as it was.

Question 8

Does it work with Lutron?

Accepted Answer

Yes — Caséta, RA2 Select, RadioRA 3 and HomeWorks QSX. Lights, switches, shades with position and tilt, fans, occupancy, and Pico remotes with press/release/multi-tap. Lutron is the most reliable lighting hardware you can put behind HA. Requires a Lutron bridge — L-BDG2 or the Pro L-BDGPRO2, RR-SEL-REP2, RR-PROC3, or HQP7. Pro bridge needed for RA2-Select-class LEAP access.

Question 9

Does it work with Philips Hue?

Accepted Answer

Yes — lights, motion/temperature/lux sensors, remotes as triggers, and Hue scenes are imported automatically. Use the Hue Bridge v2 for push updates. HA’s native Hue integration exposes dynamic scenes and entertainment mode that Hue-over-Matter does not. Prefer the native integration over Matter whenever both exist.

Question 10

Can we do that color-changing permanent outdoor / holiday lighting?

Accepted Answer

Yes, and WLED on ESP32 is the option to recommend — fully local, per-segment control, full effects engine, and no cloud that can be turned off. Correction worth knowing: Govee (via govee_light_local, core since 2024.2, Local Push, ~200 models) and Twinkly (core, local polling) are both core and local — not the cloud-community options they are often assumed to be. Trimlight and Jellyfish are community and cloud.

Question 11

Can it do circadian / human-centric lighting that shifts through the day?

Accepted Answer

Yes, and it is one of the most-loved features you can deliver — but the good implementation is a community add-on, not core. Adaptive Lighting (community) is best-in-class: per-light color-temp and brightness curves, sleep mode, and “take over control” detection so a manual change is respected. The core flux integration is much cruder.

Question 12

Can it run DMX for architectural or landscape lighting?

Accepted Answer

Not properly. There is no core DMX integration. A community Art-Net/sACN project exists and works, but for serious architectural or theatrical DMX the right answer is a real DMX processor with HA triggering it. For landscape and architectural color, WLED-based fixtures or Zigbee/Z-Wave-controlled drivers are far more supportable than pushing DMX from HA.

Question 13

Does it work with my thermostat?

Accepted Answer

Almost certainly. Ecobee, Nest, Honeywell/Lyric, Tado, Sensibo, Venstar, Aprilaire and every Z-Wave thermostat are supported. Z-Wave thermostats are the only truly local, no-cloud option — recommend those where you care. Full climate control: setpoints, modes, fan, humidity, presets, and remote sensors where the thermostat exposes them.

Question 14

Can it control our mini-splits?

Accepted Answer

Yes. Mitsubishi now has a core integration that talks to each indoor unit directly over the LAN — no cloud round-trip. Daikin, MELCloud heat pumps, LG and Fujitsu are also covered. mitsubishi_comfort is new and local: heat/cool/auto, 6 fan speeds, 7 vane modes, temp and humidity, filter status. Kumo Cloud credentials are used only for discovery.

Question 15

Can it zone our ducted system or run smart vents?

Accepted Answer

It can drive real zone hardware, but HA has no native ducted-zoning engine — you are building the logic. And smart vents are a liability item. Practical path: a real zone panel (Honeywell HZ, Zonex, Arzel) driven by relays, or per-zone thermostats. For radiant and hydronic, generic_thermostat plus Z-Wave or Shelly relays on the zone valves is rock solid and fully local.

Question 16

Can it monitor air quality — CO2, radon, particulates?

Accepted Answer

Yes, and this is an easy high-perceived-value add. AirGradient and ESPHome-built sensors are fully local and open. Airthings covers radon. AirGradient (local, open hardware), Airthings and Airthings BLE (radon, CO2, VOC, pressure), Awair, Aranet4, or ESPHome with SCD4x / SEN5x / PMSA003I sensors.

Question 17

Can it tell me when to change my filter and how hard the system is working?

Accepted Answer

Yes, with no extra hardware — and it is one of the most convincing “this system pays for itself” demos you can build. history_stats for runtime hours, utility_meter for daily/monthly rollups, template sensors for filter life, and a counter for cycle counts. Add a current clamp or dry contact on the blower for true runtime.

Question 18

Can it do real AI camera detection — people, cars, packages, faces, plates?

Accepted Answer

Yes, fully locally, with no monthly fee. Frigate is the local AI NVR everyone uses; 0.16 added native face recognition and license plate recognition; the current release is 0.17.x. Frigate does motion-gated object detection with MQTT eventing, object-based retention and a unified multi-camera UI, and drops straight into HA’s media browser and notification blueprints.

Question 19

Can it replace my alarm system?

Accepted Answer

It can give you a far better-looking, far more capable alarm experience — but it is not a listed alarm system and we say so plainly. See the “Hard Limits” category before you quote a security job. Alarmo (community) is the de-facto standard: multiple areas, arm modes, entry/exit delays, per-sensor config, bypass, user codes and push actions. The core manual panel exists but monitors nothing by itself — every sensor-to-alarm link is an automation you write.

Question 20

Can it control the door locks and manage guest codes?

Accepted Answer

Yes. Steer homeowners to Z-Wave locks — Schlage, Yale Assure, Kwikset, Ultraloq. Full user-code and credential management, S2 security, and firmware updates from inside HA. As of 2026 the code-management UI is built into HA for both Z-Wave and Matter locks. Z-Wave lock credential UI landed in HA 2026.6 and Matter lock PIN management including one-time guest codes in 2026.4. Broader access control — multiple credential types, fingerprints, audit trails — arrived with Z-Wave JS app 1.6.0 in Aug 2026, but that lives in the Z-Wave JS UI, not in HA’s own Z-Wave panel yet.

Question 21

Can it open and monitor the garage door?

Accepted Answer

Yes — but MyQ is dead and is not coming back. Chamberlain deliberately blocked third-party access in 2023 and HA removed the integration. The replacement is better than what MyQ ever offered. ratgdo (ESPHome firmware) or the commercial Konnected blaQ wires directly to Security+ / Security+ 2.0 Chamberlain and LiftMaster openers. You get position, obstruction, light, lock-out and motion — not just open/close — and it is fully local.

Question 22

Can it do NFC tap-to-arm, tap-to-disarm, or tap-to-check-in?

Accepted Answer

Yes, and it is a cheap feature that delights people. Any NFC or QR tag scanned by the companion app fires a trigger carrying the tag ID and the scanning device. Core tag domain, or a PN532 / RC522 reader on an ESPHome board for a wall-mounted reader.

Question 23

Can it unlock the door automatically when I pull up?

Accepted Answer

Technically yes. Do not sell it as a security feature. GPS geofence jitter and BLE spoofing make auto-unlock a convenience feature only. The defensible version: “unlock on arrival requires a second factor” — in-zone and an NFC tap, or in-zone and an app confirm, or in-zone and the door handle actually being operated.

Question 24

Can it work with commercial-grade door stations and intercoms?

Accepted Answer

Yes for UniFi Access, DoorBird, and Reolink/UniFi doorbells. 2N works through a community integration. UniFi Access is an official integration: readers, locks, hubs, unlock buttons, door position, doorbell and access events with auth method and person identification, plus emergency evacuation and lockdown switches.

Question 25

Can it show me where my electricity is actually going?

Accepted Answer

Yes — the built-in Energy Dashboard tracks grid in and out, solar, battery, gas, water and individual devices, with real-time power, Sankey flow diagrams, and cost. This is one of the strongest features to demo, because no competing prosumer platform does it as well. Feed it a whole-home meter plus circuit-level clamps. It handles both power (W) and energy (kWh) sensors and subtracts child devices from parent circuits so nothing is double-counted.

Question 26

Can it manage solar and battery?

Accepted Answer

Yes for monitoring — very well. Control is where vendors have been clawing back access, and you need to know exactly what was taken. Enphase Envoy polls locally. Tesla Powerwall polls locally. SolarEdge is better over local Modbus TCP than the rate-limited cloud API. Fronius, GoodWe, SolaX, SMA and Huawei have core integrations.

Question 27

Can it charge the EV when power is cheap or the sun is out?

Accepted Answer

Yes, and it is one of the highest-ROI automations you can sell. OpenEVSE is the most controllable and fully local charger. The weak point in the US is rate data, not HA. Core integrations for Wallbox (cloud) and OpenEVSE (local), plus Tesla vehicles via Fleet API or the Teslemetry/Tessie bridges. Zaptec and Easee are community integrations, not core.

Question 28

Can it enroll us in the utility’s demand response program?

Accepted Answer

Not in core. There is no OpenADR or demand-response support in Home Assistant itself (a community OpenADR 3 VEN project surfaced in 2026 — unvetted). Utility DR programs run through the utility’s own device — their thermostat or their charger. What you can do: if the utility publishes a price or event signal you can read, HA will react to it. But do not promise enrollment or DR credits driven by HA.

Question 29

Can it run and monitor the irrigation?

Accepted Answer

Yes, three different ways depending on how much control you want HA to own. OpenSprinkler is the fully local choice; Rachio is the mainstream one; and irrigation_unlimited lets HA own scheduling for any valve. Rachio (core, cloud), OpenSprinkler (community, fully local), B-hyve (community, cloud), or irrigation_unlimited driving Shelly/ESPHome 24 VAC valve boards.

Question 30

Can it run the pool?

Accepted Answer

Yes, and pool automation is one of the best demos in this business. Pentair via ScreenLogic is a core integration with local push. Everything else is more work. ScreenLogic reaches Pentair IntelliTouch and EasyTouch, including light color modes and super-chlorinate start/stop. IntelliCenter is a different protocol and needs nodejs-PoolController or a community integration.

Question 31

Can it shut the water off if a pipe bursts?

Accepted Answer

Yes, and this is the highest-value, easiest-to-justify automation in the whole catalog. Insurance-claim money. The only fully local architecture: cheap Zigbee or Z-Wave leak pucks (Aqara, Zooz, Heiman) plus one local motorized ball valve — Zooz ZAC36 Titan or EcoNet Bulldog — with HA closing the valve. Build it this way and it works with the internet unplugged.

Question 32

Can it use a real weather station instead of internet weather?

Accepted Answer

Yes, and you should. Ecowitt and WeatherFlow Tempest are both fully local — Ecowitt pushes locally from the gateway, Tempest sends local UDP. Neither depends on a cloud. Ecowitt has the best sensor-per-dollar for irrigation and freeze automations: soil moisture, leaf wetness, lightning, PM2.5, and multi-channel temperature probes.

Question 33

Can we play music everywhere, on speakers from different brands?

Accepted Answer

Yes — and this is the feature that surprises people. Music Assistant makes mismatched speaker brands behave like one system, with gapless playback, crossfade, volume normalization and cross-platform sync groups. 40+ sources (Spotify, Apple Music, YouTube Music, Tidal, Deezer, Qobuz, SiriusXM, local files, podcasts) to Sonos, Google Cast, AirPlay, DLNA, Bluesound, MusicCast, Snapcast, WiiM, Squeezelite, Alexa and any HA media player.

Question 34

Can it control the TVs?

Accepted Answer

Yes — Roku, Apple TV, LG webOS and Android TV are the reliable four. Samsung is the weakest and you should say so before you buy one. LG webOS does power-on via Wake-on-LAN, apps, sources, buttons, and even on-screen toast notifications. Apple TV and Roku are fully local with full transport control and app awareness.

Question 35

Can the speakers announce things — doorbell, alerts, reminders?

Accepted Answer

Yes, extremely well — announcements are one of HA’s genuine strengths. True two-way room-to-room intercom is where it is weak. TTS to any media player, with automatic music ducking and restore on Sonos and Music Assistant. Voices from HA Cloud (premium neural, included in the $65/yr), fully local Piper, ElevenLabs, or OpenAI.

Question 36

Can it tell the room is occupied even when nobody is moving?

Accepted Answer

Yes — mmWave presence sensors detect a person sitting still, which motion sensors cannot. This is the upgrade that makes lights stop shutting off on people. Everything Presence Lite is the best supportable choice — ESPHome, fully local, community hardware with a first-party integration path. Aqara FP2 and FP300, and LD2410/LD2450 boards on ESPHome, are the alternatives.

Question 37

Can it tell which room a person is in?

Accepted Answer

Yes, using Bluetooth. Bermuda is the recommended approach — it reuses the ESPHome Bluetooth proxies you are already deploying, with no separate MQTT stack. Trilateration and nearest-room resolution from calibrated RSSI, mapped to HA areas. Tracks phones, watches and BLE beacons.

Question 38

Does it know when we come and go?

Accepted Answer

Yes — per-person presence merging phone GPS, Wi-Fi association and Bluetooth, with zones for home, work, school, anywhere. Build automations on the person, never on a single tracker. Core person entity merges multiple device trackers with GPS/router priority. proximity gives distance and direction of travel — “Dad is 4 miles out and getting closer.”

Question 39

Can it track sleep, or know someone is in bed?

Accepted Answer

Yes. The most reliable and fully local method is load cells under the bed legs on an ESPHome board — instant, accurate, no wearable, no cloud. Withings Sleep Analyzer (core) gives real sleep staging. Sleep as Android (community) gives phases and alarm events. Eight Sleep is community.

Question 40

Can it manage the network — pause kids’ Wi-Fi, power-cycle a camera?

Accepted Answer

Yes, and UniFi integration is one of the most useful and least-demoed features. PoE port on/off lets you power-cycle a stuck camera remotely. WLAN enable/disable is how you build “kids’ Wi-Fi off at 10pm.” Core UniFi integration also exposes firewall rules, port forwards and traffic rules as switches, plus per-homeowner bandwidth and uptime, device CPU/memory/temperature, firmware update entities and AP LED control.

Question 41

Should we put all the IoT gear on its own VLAN?

Accepted Answer

This is where HA installs most often go wrong. IoT isolation and Matter/mDNS discovery actively fight each other. Plan for it or you will spend a day chasing ghosts. Matter, Thread, Cast, AirPlay, Sonos, HomeKit, ESPHome discovery and Shelly all require mDNS reflection across VLANs. Matter is explicitly designed for flat residential networks and “struggles with enterprise networks using VLANs or multicast filtering.”

Question 42

Will it tell me if the internet goes down?

Accepted Answer

It knows immediately. Getting the message to you is the hard part — a notification about internet loss cannot travel over the internet. For a real solution you need an out-of-band path: an LTE backup modem, a cellular SMS gateway, or a local siren or indicator light. Sell this explicitly rather than letting you assume.

Question 43

Can it talk to the appliances?

Accepted Answer

Partially, and every one of them is cloud. Bosch/Siemens/Thermador/Gaggenau (Home Connect), LG ThinQ, Samsung SmartThings and Miele all have core integrations. Set expectations low on control, high on notification. You get program selection, progress, completion, options, door state and connectivity. What you rarely get is the ability to actually start the machine.

Question 44

Can it run the blinds and shades?

Accepted Answer

Yes. Lutron Serena for anything you warranty — position and tilt, best-in-class reliability. (Sivoia QS is usually driven by a HomeWorks QS processor, which needs the separate core lutron integration rather than lutron_caseta — check the processor before you quote it.) Somfy where you already owns Somfy. Somfy works through Overkiz (TaHoma, Connexoon) which supports a local API at 5-second polling as well as cloud, covering 6,000+ devices across 60 brands.

Question 45

Can it run the robot vacuum by room?

Accepted Answer

Yes. Roborock is the recommendation — maps, rooms, zone cleaning and selective-room commands. Room-level cleaning from a dashboard button or an automation works today. 2026.3 added a vacuum.clean_area action mapping vendor room segments to HA areas across Matter, Ecovacs and Roborock. The matching voice intent has not shipped — HA’s own post called it “the foundation.” Do not demo “clean the kitchen” by voice as a stock feature; you can build it with a custom sentence.

Question 46

Can I get a notification I can act on without opening the app?

Accepted Answer

Yes — and this is your flagship demo. “Someone at the door → [Unlock] [Ignore] [View Camera]” with the camera snapshot embedded, straight on the lock screen. Companion app actionable notifications fire automations directly from the notification. Add camera snapshots or video, notification grouping and replace-by-tag, and deep links into the app.

Question 47

Can we have a wall tablet in the kitchen?

Accepted Answer

Yes, but the HA companion app has no true kiosk mode. Fully Kiosk Browser is the standard, and it is Android-only with a paid Plus license. Fully Kiosk has a core integration: screen on/off, brightness, screensaver, motion-wake using the tablet camera, load a URL, TTS through the tablet, restart the app, plus battery and charging sensors.

Question 48

Can I lock the kids or the cleaner out of the front door control?

Accepted Answer

No — and this is HA’s biggest gap. Do not promise it. You can hide controls visually, but any account with app access can still control any entity through the API. What you can honestly promise: separate logins per person, admin vs non-admin (non-admins cannot edit config or add integrations), different dashboards per user, per-user themes, MFA, local-only accounts for wall tablets, and visual hiding of controls.

Question 49

Can it do voice control without Amazon or Google listening?

Accepted Answer

Yes — fully local voice is real and works well for device control. Home Assistant Voice Preview Edition is $69 per room. Where it falls short is open-ended conversation. Local speech recognition (Speech-to-Phrase or Whisper), local text-to-speech (Piper), on-device wake words (microWakeWord ships “okay nabu,” “hey jarvis” and “alexa”; “Hey Mycroft” is in the Android companion app), and area-aware satellites that know which room you spoke in.

Question 50

Can I just talk to it in plain English, like ChatGPT?

Accepted Answer

Yes. HA supports OpenAI, Anthropic Claude, Google Gemini, Ollama and local models as conversation agents, and gives them real control of the house through a scoped tool API. The LLM only sees entities you explicitly expose to voice, and you can expose scripts as tools — giving the model precise, pre-approved capabilities instead of raw entity control.

Question 51

Can it help us keep an eye on an elderly parent living alone?

Accepted Answer

Yes — and this is HA’s genuinely strongest and most differentiated aging-in-place capability, because it needs no wearable and no camera in private spaces. Behavior-baseline alerting from ordinary sensors: no kitchen activity by 10am, bathroom occupancy exceeding a duration threshold, no out-of-bed by 9am, no water flow all morning, fridge door opens per day.

Question 52

Can it be our monitored alarm system for the insurance discount?

Accepted Answer

No. This is a hard no and you should never soften it. HA plus Alarmo is not a listed alarm system — no UL 1023 or UL 985 listing, no supervised communicator, no battery-backed listed panel. It will not satisfy insurance discounts, permit requirements, or municipal false-alarm ordinances. The compliant paths: keep a real DSC or Honeywell Vista panel with its monitoring contract and bridge it via Envisalink, or use Noonlight as an explicitly non-listed supplemental dispatch service.

Question 53

What else should I simply never promise?

Accepted Answer

Five hard nos — backend per-user permissions, MyQ, native Control4/Crestron/Savant integration, utility demand-response enrollment, and Ring Alarm panels — plus one “verify first”: Lutron HomeWorks QS. Each has a documented reason and, in most cases, a real alternative. Know both.

Question 54

What are the risks I should put in the contract?

Accepted Answer

Four: monthly breaking changes, community-maintained dependencies, vendor cloud APIs being monetized or killed, and single-point-of-failure hardware. None of these are dealbreakers. All of them are disclosure items, and disclosing them makes you look like the professional in the room.

Question 55

What makes an install feel reliable versus flaky?

Accepted Answer

Five rules, and they matter more than any feature in this document. Every automation is a potential failure the homeowner blames on you. Local-first hardware degrades gracefully. Cloud hardware does not.