Jacksonville, FL
Smart thermostats installed and wired right in Jacksonville
Wi-Fi and humidity-control thermostats set up for heat pumps, staged systems and dehumidifiers, so the new screen actually runs your equipment the way it was designed to.
Quick answer
Can a smart thermostat control humidity in a Jacksonville home?
Yes, in Jacksonville a smart thermostat with a dehumidify setting can slow the blower or call a whole house dehumidifier when indoor humidity rises, and JEA adds a $50 rebate when it's installed with a new qualifying system. The catch is wiring: a heat pump needs the reversing valve and aux heat terminals set correctly or the savings disappear.
Overview
What a good thermostat install looks like on a Florida system
Most smart thermostat trouble we see in Jacksonville isn't a bad thermostat. It's a heat pump wired like a gas furnace, a missing common wire that drains the batteries, or aux heat set to kick on every time the house is a degree behind. The screen looks great and the power bill climbs.
A proper install starts with the equipment, not the box. We identify the outdoor unit and air handler, check whether the system is single stage, two stage or variable speed, and confirm the reversing valve setting before anything is connected. Then we set the lockout so strip heat only runs when the heat pump genuinely can't keep up.

Cost factors
What changes the price of a thermostat install
- Thermostat modelA basic Wi-Fi unit, a humidity-sensing model, and a communicating thermostat matched to a variable speed system sit at very different prices.
- Common wireIf the wall cable has no spare conductor, we add a new wire run or a power adapter at the air handler.
- System typeHeat pumps, two-stage and dual fuel systems take more setup time than a single stage AC with electric heat.
- Dehumidifier or zoningTying the thermostat to a dehumidifier or a zone panel adds wiring and configuration.
- Rebate timingJEA's $50 thermostat rebate applies only when installed with a new qualifying system inside the program window.
We price the install on site after seeing the wiring.
Options
Which thermostat fits your system
| Type | Best for | Humidity control | Heat pump support |
|---|---|---|---|
| Basic programmable | Rental units and simple single stage AC | No | Most support O/B, limited lockout settings |
| Wi-Fi smart | Most homes that want phone control and schedules | Some models read humidity only | Yes, with aux heat staging |
| Humidity sensing smart | Muggy homes, variable speed blowers | Dehumidify on demand | Yes, with compressor lockout |
| Communicating | Matched variable speed systems from one brand | Full, via the equipment | Yes, set by the system |
| Zone thermostats | Two story homes and bonus rooms | Per zone on some panels | Through the zone board |
Communicating thermostats only work with their own brand's equipment, so they're chosen with the system, not after.
What we fix
Wi-Fi thermostats for everyday control
The common request is simple: control the house from a phone, set a schedule, and stop cooling an empty home at noon. We mount the base level, run or repurpose a common wire so the unit never browns out, connect it to your network and walk you through the app before we leave. If an older system has no spare conductor in the wall, we use the manufacturer's power adapter at the air handler rather than a battery workaround that fails in six months.
Heat pump compatible wiring
Heat pumps need three things a furnace thermostat doesn't: the reversing valve terminal set to energize on cool or heat depending on the brand, an auxiliary heat stage for the strips, and an emergency heat mode. Get the first one backward and the system heats when you ask for cooling. We read the outdoor unit's wiring diagram, set the changeover correctly, and set a compressor lockout temperature so a 45F morning doesn't trigger expensive strip heat for no reason. Emergency heat is labeled so you know what it does.

Humidity control thermostats
A thermostat with dehumidify-on-demand watches indoor humidity and, when it creeps up, lowers blower speed or overcools slightly to pull moisture. On variable speed systems that's a big comfort gain. On a home with a whole house dehumidifier, the same thermostat can call the dehumidifier on its own terminal, so the AC doesn't have to run cold just to dry the air. We set the target in the high 40s, which is where most Jacksonville homes feel comfortable at 76F.
Brands we service and install
Trane, Carrier, Lennox, Rheem, Goodman, Daikin, Mitsubishi Electric, American Standard, Bryant, Ruud, Amana, Honeywell, York, Heil
Thermostats and Jacksonville's muggy half of the year
From May through October the dew point here barely drops overnight, so a thermostat that only watches temperature will satisfy the setpoint while the house stays damp. That's why we push humidity-sensing models on most installs. In newer Nocatee homes, tight construction and zoned systems make the controls matter even more, since one badly set zone thermostat can leave a bonus room humid all summer. When the thermostat goes in with a new qualifying system, JEA's $50 rebate applies.
How the job runs
How the install goes
- 1
Look at the equipment
We read the model numbers on both units and the existing wiring before choosing settings.
- 2
Power off and mount
Breaker off at the air handler, old unit removed, new base leveled and secured.
- 3
Wire and configure
Terminals connected, changeover and lockouts set, humidity target entered.
- 4
Test every mode
Cooling, heating, aux heat and fan checked with a thermometer at the supply vent.
- 5
Hand it over
App connected on your phone and the schedule set the way you live.
FAQ
Smart thermostat questions
Will a smart thermostat work with my heat pump?
Almost always, provided it's wired and configured for a heat pump. The reversing valve setting and the aux heat stage are the two settings that most often get missed.
Why does my new thermostat keep going blank?
It's usually running on stolen power without a common wire. Adding a C wire or a power adapter fixes it for good.
Do I get a JEA rebate for a smart thermostat?
JEA pays $50 for a smart thermostat installed at the same time as a new qualifying central AC, heat pump or mini split within the current program window.
Can the thermostat run my dehumidifier?
Many humidity-sensing models have a dedicated terminal that calls a whole house dehumidifier, so the AC doesn't have to overcool to dry the air.
What humidity should I set?
Most Jacksonville homes feel comfortable with indoor humidity in the high 40s at around 76F.
Can you install a thermostat I already bought?
Yes, after checking it suits your system.
How long does a thermostat install take?
A simple swap is usually under an hour.
Related services
Other work on the same system
Duct Cleaning
Dust, debris and growth cleared from supply and return runs after renovations or water events.
Learn moreGet the thermostat running your system properly
Call any hour and we'll book a visit to wire, configure and test it, including heat pump and humidity settings.