A smart thermostat only pays off if it's wired correctly for your HVAC type — especially heat pumps and dual-fuel. We handle wiring, calibration, and setup so you actually get the savings it promises.
Fullerton is home to roughly 140,721 residents across CA. We serve Amerige Heights, Sunny Hills, and Raymond Hills, plus surrounding neighborhoods for smart thermostat. California Title 24 requires Home Energy Rating System (HERS) testing on qualifying AC installs — we handle the paperwork. Ask about current rebate programs from Southern California Edison (SCE), SoCalGas that can offset qualifying smart thermostat work.
Open the old thermostat, photograph the wiring, verify you have a C-wire (most smart thermostats need one). If not — we retrofit or add a 24V adapter.
Install ecobee, Nest, Honeywell, or Emerson. Wire O/B for heat-pump reversing valve; wire W2 for auxiliary-heat staging. Configure schedules + sensors.
Sync with your HVAC, test heat/cool/fan cycles, walk you through the app. 1-year install warranty.
Usually weak 2.4GHz coverage at the thermostat location. Mesh extender or relocation fixes it.
O/B reversal is the #1 install error. We verify heat-call vs cool-call behavior during commissioning.
Compatibility issue between thermostat + heat-pump brand. We reconfigure staging or swap to a brand-specific model.
Adapter (ecobee PEK or Nest Power Connector) for most setups; full C-wire retrofit for tougher cases. $120-$180 either way.
Thermostat placed in sunlight, near a vent, or on an exterior wall. We relocate + recalibrate.
“Our smart thermostat quote was in writing before anyone touched the system. The tech showed pressures, temperatures, and the failed component. Honest work.”
“Quoted 3× higher by a chain for smart thermostat. This team explained everything, did the work right, backed it with a real labor warranty.”
“Smart Thermostat tech was experienced — walked us through the diagnostic, showed the actual readings, fixed it on the first trip. That's how it should be done.”
Yes — typical CA homes save 8-15% on heating/cooling costs with proper setup. Most of the savings come from accurate schedules, not the AI — so calibration matters more than brand.
Most smart thermostats do. If yours doesn't have one, we can retrofit or add a 24V power adapter. Typical C-wire add runs $120-$180.
Yes — heat-pump thermostats need correct O/B wire configuration and auxiliary-heat setup. We do this weekly in Fullerton.
Three usual causes: poorly-designed ductwork, wrong blower speed, or a single thermostat trying to serve a multi-zone home. Duct repair is usually cheapest; zoning or ductless mini-split handles the complex cases.
If your system is over 10–15 years old, needs frequent repairs, or your energy bills keep rising, replacement may be more cost-effective than continuing to repair. {company} provides free estimates and can help you choose the most efficient system for your Fullerton home.
Average home leaks 20-30% of airflow through duct joints — confirmed by a Duct Blaster test. {company}'s $189 duct-leak diagnostic tells you exactly how much cooled/heated air you're losing to the attic before you invest in a new system.
Same service, nearby footprint
Call 714-555-3400 for same-day service or request a time online.
Call 714-555-3400