How much does a smart home cost in the UK? A 2026 price guide

“How much does a smart home cost?” is the first question almost everyone asks us, and the honest answer is: it depends on what you want it to do. But “it depends” is a useless answer when you are trying to budget, so here are real UK figures for 2026 and the things that move the number up or down.

The short version

For a professionally installed, unified smart home built on Home Assistant, most of our projects land in these bands:

• Under £2,000: a focused starter setup. Smart lighting in the main rooms, heating control, and everything pulled into one app so it actually works together. A great way to prove the value before going further.
• £2,000 to £5,000: a whole-home core. Lighting, heating, sensors, a few smart switches, secure local cameras, and automations that run your routines without you touching a phone.
• £5,000 to £10,000: a comprehensive system. Multi-room control, energy monitoring, blinds, access, and a properly resilient setup that keeps working when the internet does not.
• £10,000 and up: large or complex homes, new builds, and projects with bespoke integration across many systems.

These are installed prices including hardware, configuration, and handover, not just a box of parts.

What actually drives the cost

Four things move the number more than anything else:

1. How many rooms and devices. A three-bed semi costs less to cover than a five-bed detached. This is the single biggest factor.
2. Hardware choices. Smart bulbs, switches, sensors, and hubs vary widely in price and quality. We spec hardware that lasts and that is not tied to a single cloud account.
3. Wiring and retrofit difficulty. Wireless devices keep costs down. Anything that needs cabling, smart switches behind the wall, or work around a renovation adds labour.
4. How much automation you want. Turning lights on with an app is cheap. A home that anticipates your routines, manages energy, and handles security takes more design time, and it is where the real value sits.

Why “cheap” can cost more later

The smart home market is full of low upfront prices that rely on cloud subscriptions, locked ecosystems, and devices that stop working the day a manufacturer pulls the plug. We build on Home Assistant and local-first hardware so your system keeps running on your network, with no monthly fee to keep the lights working. You pay once to own it properly, rather than renting your own home back from a tech company.

Getting an accurate number

Every home is different, so the only way to give you a real figure is to understand what you already own and what you want the house to do. That is exactly what our free consultation is for. We will be straight with you about what is possible and what it will cost, with no sales pitch.

Tell us about your home and get a clear quote.