A "smart home" is often sold as a box of gadgets. The upgrades that actually last are the ones built into the electrical system: switches in the wall, a panel that reports what each circuit is doing, protection at the service, and wiring that is in place before you need it. Gadgets can be swapped in an afternoon. Wiring decisions stay with the house for decades.
This list ranks the smart upgrades we think give South Florida homeowners the most value for the disruption involved, from the simplest to the most involved, and names current products that show what each upgrade looks like. It is not a ranking of contractors; if you are choosing one, see our list of the best electrical contractors in South Florida.
How we picked
We ranked upgrades on four things: how much they change daily life, how well they hold up in a hot, humid climate with frequent storms and outages, whether they add real capability to the house rather than to one app, and whether they need electrical work that is easier to do once and do properly. Every product named below is listed as current on its manufacturer's website. We named products as examples, not endorsements, and we left out prices.
1. Smart dimmers and switches
Replacing ordinary switches with smart ones is the upgrade most people notice every day: scenes, schedules, voice control and lights that turn off when everyone has left. Lutron's Caséta line is a good example of a system built for reliability. Its smart hub can control up to 74 devices, schedules can follow sunset, and Lutron states the lighting control keeps working even when Wi-Fi is down. Leviton's Decora Smart line is the main alternative, with Wi-Fi models controlled from the My Leviton app.
Worth knowing: many smart switches need a neutral conductor at the switch box, and older South Florida homes often do not have one there. Some systems, including Leviton's Decora Smart no-neutral models with their Wi-Fi bridge, are designed for that situation. An electrician can tell you which you have before you buy.
2. Motion-sensing switches for closets, garages and laundry rooms
A motion or vacancy sensor in the wall box is the simplest automation there is. Leviton's Decora Smart Wi-Fi Motion Sensing Dimmer (D2MSD) combines a 180-degree sensor, covering up to 900 square feet of major motion by Leviton's figures, with a Wi-Fi dimmer that works with Alexa, Google, Apple Home and SmartThings. Set it to vacancy mode and the light only turns on when you press it, but turns itself off when you leave.
Worth knowing: the D2MSD requires a neutral wire.
3. Whole-home surge protection
Every smart device in the house runs on a circuit board, and so do modern air handlers, pool pumps and appliances. A surge protective device at the panel is the foundation that protects all of them from the frequent small surges caused by utility switching and storms. It is also required on new and replaced dwelling services in Florida under the 2020 National Electrical Code. Our guide to the best whole-house surge protectors compares current devices from Eaton, Siemens, Square D, Leviton and Intermatic and explains the code rule with sources.
Worth knowing: add plug-in protection at the TV, computer and network equipment as a second layer.
4. A smart thermostat
In South Florida air conditioning is the biggest load in almost every home, so control over it pays back more here than in milder climates. Current examples include the ecobee Smart Thermostat Premium, which comes with a remote room sensor and adds occupancy sensing and indoor air quality monitoring, and the Google Nest Learning Thermostat (4th gen), which ships with a Nest Temperature Sensor and works with Matter apps. Both need a compatible HVAC system and usually a common (C) wire. We compare models in more depth in the best smart thermostats for Florida.
Worth knowing: in a humid climate, check how the thermostat handles dehumidification with your equipment, not only temperature.
5. Outdoor lighting controls
Landscape and security lighting on a timer or dusk-to-dawn schedule is a small upgrade with a big effect. An astronomic in-wall timer such as the Intermatic ST01 works out sunrise and sunset for your location, adjusts for daylight saving time, and has a random mode that gives a lived-in look while you travel. For plug-in string lights and fountains, the Caséta Outdoor Smart Plug is IP66 rated and plugs into a GFCI-protected outdoor receptacle.
Worth knowing: salt air and sprinklers are hard on outdoor devices. Use weather-rated boxes and in-use covers, and keep receptacles GFCI-protected. For fixture ideas, see lighting installation.
6. An EV-ready circuit
Even if you do not drive an electric car yet, a 240-volt circuit to the garage or driveway is far easier to add during other electrical work than later. The U.S. Department of Energy notes that Level 2 home charging runs at 240 volts, that some homes do not have enough electrical capacity, and that a qualified electrician can add the circuits needed (Alternative Fuels Data Center). A future buyer notices it too. For charger models, see the best home EV chargers.
Worth knowing: a load calculation comes first; the circuit may be simple, or the service may need an upgrade.
7. Network and low-voltage wiring
Wi-Fi is convenient, but smart TVs, access points, home offices and streaming boxes all work better on a wired connection. Running data cable to key rooms, and to ceiling locations for wireless access points, gives every other smart upgrade a reliable backbone. The cable needs its own route, away from power wiring, and a central place to terminate with power and ventilation.
Worth knowing: this is by far the easiest to do when walls are open for a remodel. See low-voltage wiring for how it is planned.
8. A smart electrical panel
A smart panel replaces the ordinary breaker panel with one that monitors and controls each circuit. The SPAN Panel is the best-known example. SPAN's app shows real-time energy use by circuit and lets the owner switch circuits on or off, and the company offers several sizes (including its MAIN 40, MAIN 32 and MAIN 16 models). SPAN also says the panel can manage EV charging and, paired with a home battery, choose which circuits stay powered during an outage.
Worth knowing: this is a panel replacement, not an add-on, so it involves a permit, an inspection and a planned shutdown. It makes the most sense when the panel needs replacing anyway. See panel upgrades.
The South Florida angle
Outages happen
Hurricane season runs June 1 to November 30 (National Hurricane Center), and summer storms cause short outages all year. Choose devices that remember their settings after a power loss and do not depend entirely on the cloud to work. Local-control systems keep your lights usable when the internet is down.
Humidity and heat
Garages, attics and outdoor walls get very hot here. Check each product's rated operating temperature before mounting it somewhere unconditioned, and keep hubs and network equipment in conditioned space.
Condos and HOAs
Condo owners may need association approval for work that touches common elements or the building's electrical riser. Smart switches and thermostats inside the unit are usually straightforward; panel changes are not.
Frequently asked questions
Which smart upgrade should I do first?
Start with what you use every day: switches in the rooms you live in, and a thermostat. Add surge protection at the same time, because it protects everything that follows.
Do smart switches work in older homes?
Usually, but many require a neutral at the switch box. Some product lines offer no-neutral models. An electrician can check your boxes and advise before you buy a houseful of devices.
Is Wi-Fi enough, or do I need wired data?
For switches and sensors, wireless is fine. For TVs, computers, access points and anything that streams, a wired connection is more reliable, especially in homes with concrete block walls that weaken Wi-Fi.
Do I need a permit for smart home upgrades?
Swapping a switch for a like-for-like smart switch usually does not, but new circuits, an EV-ready circuit and a panel replacement do. The contractor doing the work should handle the permit where one is needed.
Plan the wiring, then pick the gadgets
The most useful thing you can do is decide where devices will go before the walls are closed. KRW Electric installs the circuits, neutrals, boxes and device locations that connected equipment relies on, runs low-voltage cabling alongside the power, and handles surge protection and panel upgrades. See smart home wiring and low-voltage wiring, or get in touch to talk through your home.
Reviewed by Kyle White, KRW Electric Company LLC — licensed electrical contractor EC13012832.
