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Smart Home Ownership Cost Calculator

Reviewed for 2026, updated September 8, 2026.

Estimates the full cost of owning a whole-home automation system over your chosen horizon, including service plans, hardware refreshes, and standby electricity, for homeowners comparing integrator proposals.

Your numbers

Results update as you type.

Your estimate

Total cost of ownership...
Average cost per year...
Hardware refreshes counted...
Share spent after installation...

Estimates only. Assumptions are listed below, and you can change every input.

The installed price of a luxury automation system is only the opening chapter. Service agreements renew every year, processors and touch panels are refreshed as platforms move on, and a rack that never sleeps draws power around the clock. Buyers who compare proposals on install price alone often choose the system that costs more to live with. This calculator brings those recurring costs into one figure so two proposals can be compared on what they will actually cost over time.

The estimate adds your installed cost to annual service fees, a periodic hardware refresh expressed as a share of the original install, and the electricity consumed by always-on equipment. Refreshes are counted at the interval you set within the ownership period. The output is an honest planning total, not a forecast: it does not model inflation, financing, or resale value, and it assumes the figures you enter hold steady for the whole period.

How to use this tool

  1. Enter the installed cost from the proposal you are evaluating and the annual price of its service agreement.
  2. Set the number of years you expect to own the system, then adjust the refresh size and interval to reflect how often that platform tends to change.
  3. Estimate the annual electricity for the rack and compare total cost of ownership and the share spent after installation across competing proposals.

What the math assumes

  • Assumes annual service and electricity costs stay flat for the entire period; no inflation, rate changes, or plan upgrades are modeled.
  • Assumes each hardware refresh costs a fixed share of the original installed cost and occurs at the interval you set, with a refresh that would fall in the final year of ownership left out.
  • Assumes electricity for always-on equipment is entered as an annual dollar figure; the default of 375 USD is a placeholder, not a measured value.
  • Assumes no financing costs, insurance premiums, or resale value recovered when the home is sold.
  • Assumes repairs outside the service plan are either covered by the plan or included in your refresh allowance.

Frequently asked questions

Why count a hardware refresh at all?

Control processors, touch panels, and streaming sources age faster than the wiring behind them. Most owners of a large system replace part of it well within a decade, so leaving that out understates the real cost.

Is a service plan really necessary?

For a system that runs lighting, shades, climate, and security across a large residence, most integrators expect one, and some reserve priority support for plan holders. Enter zero if you intend to pay by the visit, but budget for those visits instead.

Can I compare two proposals with this calculator?

Yes. Run it once per proposal with each integrator's install price, service plan, and expected refresh habits, then compare total cost of ownership rather than install price alone.

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More free tools from Smarthausr

  • Whole-Home Automation Budget Estimator: Estimates a planning budget for lighting control, motorized shades, and audio video zones so homeowners, architects, and builders can size a luxury automation project before requesting integrator proposals.
  • Luxury Home Network Sizing Calculator: Estimates how many wireless access points and switch ports a large residence needs, plus wireless density per access point, for homeowners and builders planning wired infrastructure before the walls close.

A Home That Anticipates You

An expert guide to whole-home luxury automation.

Read the complete guide