Reviewed by the HomeSmartSetup team · Last reviewed June 2026. The numbers below separate one-time hardware from the recurring fees most cost guides leave out. HomeSmartSetup may earn a commission from links on this page — it never changes what we recommend.
“How much does a smart home cost” has two honest answers: the hardware (a one-time spend you control) and the subscriptions (a recurring drip that, ignored, can outgrow the gear). DIY, you can build a genuinely smart home for a few hundred dollars; go custom-installed and it runs into five or six figures. Here’s the real 2026 breakdown, room by room, with the subscription trap called out.
The big picture: $300 DIY to $15,000+ installed
Industry estimates put a basic smart home at $2,000–$5,000 and mid-range at $5,000–$15,000 — but those assume professional installation. Done DIY with the devices we recommend, a real, useful smart home starts around $300–$800. Luxury custom systems (Crestron, Elan) start at $15,000 and climb past $100,000; ignore those unless you’re wiring a mansion.
Cost by category (DIY, real device prices)
- Lighting: bulbs $10–$20 each (Sengled under $5, Hue ~$50); switches $15–$150. A few rooms: ~$60–$150.
- Voice/hubs: Echo Dot $50, Nest Hub $99.99, SmartThings Station $99.
- Climate: thermostats $70–$280 (Amazon Smart Thermostat ~$80, Ecobee ~$249).
- Security: cameras $40–$180 each (Wyze under $40), doorbells $100–$180, smart locks $150–$330.
The hidden cost: subscriptions
This is what cost guides skip. A household with 4 cameras, a doorbell, and a monitoring plan spends $200–$600/year on subscriptions alone — potentially more than the hardware over five years. Choosing no-subscription gear (Wyze, eufy, Reolink store locally) can save $840+/year. Budget the recurring cost before you buy, not after.
Three real budgets
| Tier | Hardware | What you get | Recurring |
|---|---|---|---|
| Starter (DIY) | ~$300 | Voice, lighting, 1 camera, smart plugs | $0 (local storage) |
| Whole-home (DIY) | ~$1,000–$2,000 | Multi-room lighting, thermostat, locks, doorbell, cameras | $0–$200/yr |
| Pro-installed | $5,000–$15,000+ | Custom integration, labor | Varies |
A real scenario
A practical whole-home DIY build: ~$200 lighting, a $99 hub, an $80 thermostat, a $160 lock, a $120 doorbell, and two $40 cameras — about $740 one-time. Keep it subscription-free with local-storage cameras and you pay $0/year after that. The same setup with cloud plans on every camera and pro monitoring could add $400+/year — which is exactly why the device choices in our guides weight subscription cost so heavily.
Frequently asked questions
What’s the minimum to start a smart home?
About $300 DIY — an Echo Dot or Nest Hub, a few smart bulbs, smart plugs, and one local-storage camera. You expand room by room from there.
Why are pro-installed quotes so high?
Labor and custom integration. The $2,000–$15,000 figures assume installers; the same devices self-installed cost a fraction.
What’s the most overlooked cost?
Subscriptions — $200–$600/year for camera/doorbell/monitoring plans. Choosing local-storage gear (Wyze, eufy, Reolink) avoids most of it.
More: see our smart home subscriptions guide and devices under $50.
