Thermostat & Controls Services, Georgetown TX
Thermostat Installation & Service
Install any thermostat, standard, programmable, or smart, with proper wiring, configuration, and testing.
Replace faulty or outdated thermostats. We identify compatibility requirements before recommending equipment.
Recalibrate thermostats reading inaccurately, a 2-3°F offset causes significant comfort and efficiency problems in Georgetown's heat.
Determine if the thermostat or the system is the cause of HVAC problems, the thermostat is rarely the actual culprit.
Relocate thermostats away from heat sources, drafts, or direct sunlight that cause inaccurate temperature readings.
Install a common wire for smart thermostats that require continuous 24V power, without it, smart thermostats often malfunction.
Full smart thermostat setup including wiring, app configuration, scheduling, and compatibility verification.
Optimize thermostat response settings, anticipator adjustment, and stage sequencing for your specific system.
HVAC Electrical Diagnostics & Repair
Systematic low-voltage and line-voltage electrical diagnosis, find faults without replacing working components.
Repair damaged, corroded, or incorrectly wired HVAC control and power circuits.
Diagnose and repair HVAC power supply issues, breakers, disconnects, and line-voltage components.
Correct overcurrent or undersized circuit conditions causing tripped breakers or component damage.
Recover HVAC systems stuck in lockout, error states, or post-power-surge conditions.
Trace and repair 24V control circuit faults, shorts, opens, and incorrect wiring between thermostat and equipment.
Repair or replace outdoor AC disconnect boxes, fuses, and weatherhead connections.
Replace deteriorated flexible conduit and wiring connections at outdoor AC units.
HVAC Control Components
Diagnose and repair HVAC control system failures including boards, relays, and communication wiring.
Full system calibration, thermostat, controls, and equipment operating parameters aligned and verified.
Calibrate system staging, fan delays, and operating behavior for your specific comfort and efficiency goals.
Calibrate control signals between thermostat and equipment, staging, modulation, and communication signals.
Replace failed 24V control transformers, the power supply for the entire low-voltage control circuit.
Replace failed relay boards that control equipment staging and multi-zone operation.
Install safety disconnect switches for code compliance and service safety on HVAC equipment.
Replace aquastat controls on hydronic and boiler systems that regulate water temperature.
Install and configure zone control panels for multi-zone HVAC systems.
Install outdoor temperature sensors for weather-compensating controls and smart thermostat systems.
Fixing Inaccurate Temperature Readings
Thermostat calibration corrects the gap between the temperature a thermostat displays and reports to the system, and the actual temperature in the room where people experience comfort. Even a small offset, two or three degrees, can cause a system to satisfy too early or run longer than necessary, since the thermostat is making decisions based on its own reading rather than true room conditions, and that error compounds into real comfort complaints and higher energy bills over time.
Several things cause a thermostat to drift out of calibration or read inaccurately from the start. Physical placement is the most common root cause, a thermostat mounted on an exterior wall, in direct sunlight through a nearby window, above a supply register, or near a heat generating appliance will read differently than the room's actual average temperature, and no amount of internal calibration adjustment fully fixes a placement problem, it just compensates for it. Internal sensor drift also happens over years of use on older mechanical and electronic thermostats, particularly ones with a mercury switch or bimetal sensing element, which is a genuine mechanical degradation rather than a placement issue.
Our calibration process starts by measuring actual room temperature with a calibrated reference thermometer at several points near the thermostat and at typical seating or activity height elsewhere in the room, since a thermostat mounted at standard height near a doorway can read differently than the temperature people actually feel sitting on a couch across the room. If the thermostat's placement is fundamentally compromised, near a supply vent or in direct sun, we discuss relocation as the more durable fix rather than just adjusting an offset setting to mask a placement problem that will keep causing other subtle issues.
For thermostats with a legitimate need for calibration adjustment rather than relocation, most modern digital and smart thermostats include a calibration offset setting accessible through their menu or app, and we set this based on the measured gap between displayed and actual temperature, then verify the adjustment holds accurately across a full heating or cooling cycle rather than just checking it once. Georgetown's intense summer sun makes west and south facing wall placement a particularly common source of calibration complaints, since a thermostat on an exterior wall that heats up significantly in late afternoon sun will show a temperature reading meaningfully higher than the room's actual air temperature during exactly the hours when accurate cooling control matters most.
Frequently Asked Questions, Thermostat Calibration
HVAC Electrical or Thermostat Issue?
We trace faults to the actual source, not replace parts until something works.