Whole-home automation, starting with electrical right.
Smart home automation depends on electrical infrastructure most homeowners (and most automation installers) underestimate. Built right, the system works for a decade; built wrong, it requires constant rework.
By Steven Lockhart · Reviewed by Alex Towery, C-10 #989290
Updated 2026-06-16
Whole-home automation requires more than smart devices — it needs proper electrical infrastructure: dedicated network closet location with power and ventilation, structured cabling backbone for reliable communication, neutral wires at every switch location (most older homes lack these), and thoughtful protocol selection (Lutron, Z-Wave, Zigbee, Matter). Doing this right at the build/remodel stage costs 20-30% more than minimum; doing it wrong costs 2-3x more in retrofit later.
01What electrical infrastructure automation actually needs.
A whole-home automation system has three electrical infrastructure requirements that homeowners (and many integrators) underestimate. First: a network hub location with dedicated circuit, ventilation, and structured cabling backhaul — the brain of the system needs power, doesn't run well in a hot closet, and needs wired Ethernet to every major control point. Second: neutral wires at every switch location, because modern smart switches require neutral connections that most older homes don't have. Third: clean power isolation for sensitive equipment via dedicated circuits and surge protection.
Skipping any of these works on day one but creates progressive issues over years. The smart system in a hot unventilated closet thermal-throttles. The switches without neutrals require workarounds (neutral kits, bypass capacitors) that work intermittently. The shared circuits cause voltage sags that reset hubs and routers. Done right, the infrastructure is invisible — the system just works. Done wrong, the system becomes a hobby.
02Three planning decisions that matter most.
Hub location and infrastructure
Pick a network closet location with: dedicated 20A circuit, ventilation (not a closed wall closet), Ethernet from this point to every major room and the main panel, room to expand. Mechanical closets and dedicated network rooms work; broom closets and laundry rooms don't.
Smart switch neutral availability
Modern smart switches (Lutron Caseta, Leviton Decora Smart, Lutron RA3) require neutral connections at the switch box. Many older homes (built before 1990) don't have neutrals at switch boxes. Adding them during a remodel costs 30-50% less than adding them retroactively to a finished house.
Protocol architecture
Choose protocol family before buying devices. Major options: Lutron (best switches and dimming, expensive), Z-Wave (best device variety, slightly slower), Zigbee (good variety, integrates well with Hue), Matter (industry-converging standard, growing device support). Mixing protocols within one home is possible but adds complexity.
03Working with automation integrators.
Most whole-home automation projects involve a home automation integrator (HTA, CEDIA, or local equivalent) who designs the system, programs the controls, and provides ongoing support. Our role as electrical contractor is providing the infrastructure they need: dedicated circuits at hub locations, structured cabling to control points, neutral wires at switch locations, panel-level surge protection. We coordinate with the integrator on rough-in locations during construction.
The split: we own the electrical infrastructure (line voltage, dedicated circuits, neutrals, surge protection, structured cabling), the integrator owns the automation system itself (hubs, programming, device installation, user training). For new construction and major remodels, this coordination happens during framing/rough-in. For retrofit projects, the order matters: electrical infrastructure work first, then automation device installation.
Common questions.
Can I do smart home automation in my existing house?
Yes — most Marin homes can be retrofitted for whole-home automation with some electrical work. Typical retrofit scope: adding neutrals at switch locations (where missing), running structured cabling to a network hub, dedicated circuit for hub, surge protection at panel. Cost varies $4,000-$15,000 for typical Marin home depending on existing infrastructure. New construction is meaningfully cheaper to do well; retrofit is doable but more expensive.
Which smart switch brand should I choose?
For premium quality: Lutron (Caseta for smaller systems, RA3/HomeWorks for whole-home). Best switches, best dimming, most reliable. For broader device ecosystem: Leviton Decora Smart, GE Enbrighten, Inovelli (all Z-Wave or Zigbee). For new-construction with Matter ecosystem: emerging Matter-native brands. We don't recommend any single brand universally — depends on existing devices, automation goals, and budget. Discussion during planning visit.
Will the system work with Alexa/Google/HomeKit?
Yes — all major automation systems (Lutron, Control4, Crestron, Savant, plus DIY systems built on SmartThings or HomeAssistant) integrate with the voice assistants. The integration is through hub-to-cloud connections; behind the scenes, the system uses its native protocol (Lutron, Z-Wave, etc.) for device communication while exposing a unified interface to voice assistants. Choice of voice assistant affects user experience but doesn't dictate underlying electrical infrastructure.
How much does whole-home automation cost?
Wide range based on scope. Basic smart switches throughout: $8,000-$18,000 for typical Marin home. Full Lutron HomeWorks or Control4 system with whole-home programming: $25,000-$80,000+. We handle electrical infrastructure portion (typically $3,000-$12,000); automation integrator handles devices/programming. Discuss scope with both during planning for accurate total cost.
How do you handle pricing — flat fee or hourly?
Both, depending on scope. Routine service calls and predictable scope (panel replacement, EV charger install, transfer switch install, fixture replacement) are flat-fee quoted up front. Diagnostic visits and emergency scope are hourly because we don't know what we'll find. Either way, you get a written quote before work starts on anything significant, and we don't proceed beyond the quote without your sign-off.
How quickly can you schedule?
Depends on scope and season. Emergency dispatch: same-day across Marin County (1-3 hours business hours, 1-4 hours after-hours). Same-day standard service: 3-6 hours from call when capacity allows; otherwise next business day. Scheduled service work: 1-3 weeks typical. Larger projects requiring permits and PG&E coordination: 4-12 weeks depending on scope. We're upfront about timeline at the quote stage.
What warranty do you offer on work?
Our standard residential warranty: 2 years on labor, manufacturer warranty on parts (varies by product — typically 1-10 years). Major installs (panels, generators, EV chargers) often have longer manufacturer warranties (5-10 years). If there's an issue with our work in the warranty period, we come back and fix it at no cost. We also stand behind work past warranty — repeat customers and referrals matter more than a transactional fix.
Are you licensed and insured?
Yes. California State License Board C-10 Electrical Contractor #989290, in good standing. Carry general liability insurance and workers' compensation insurance as required by California law. Bondable on projects requiring it. Happy to provide proof of insurance to clients or property managers on request. License lookup: cslb.ca.gov.
Talk to a licensed electrician in Marin.
Family-run, C-10 #989290, 20+ years in the trade. Honest scoping, fair pricing, work that lasts.