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Replace faulty or outdated thermostats.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.
Full System Calibration, What We Check
Full system calibration means verifying that every control component, the thermostat, the equipment control board, staging and timing parameters, and sensor readings, are all working in agreement rather than each one being individually functional but collectively out of sync. It's common for a system built up over years of individual repairs, a new thermostat here, a control board replacement there, to end up with components that each work fine on their own but were never verified to actually agree with each other's settings and expectations.
We start with the thermostat itself, confirming its temperature reading is accurate against a calibrated reference thermometer and that its configuration matches the actual equipment installed, heat pump versus gas furnace, single stage versus multi-stage, since a thermostat configured for the wrong equipment type will call incorrectly regardless of how accurate its temperature sensor is. From there we verify the control board is receiving and correctly interpreting those calls, checking actual relay engagement and timing against what the thermostat is sending.
Sensor calibration is a significant part of full system work, particularly on systems with auxiliary sensors like outdoor temperature sensors for heat pump lockout control, or remote room sensors on multi-sensor smart thermostat setups. A single miscalibrated sensor can throw off system behavior in ways that look like a much larger problem, an outdoor sensor reading a few degrees warm can prevent a heat pump's auxiliary heat from engaging on a genuinely cold morning, leaving the house underheated while every individual component tests as functional in isolation.
Georgetown's wide temperature swings, from summer highs well over 100 degrees to occasional winter mornings in the 20s following a cold front, put real demands on a system's ability to respond correctly across that whole range, and calibration issues that don't show up in mild spring weather often reveal themselves during these extremes. We perform full system calibration as a standalone diagnostic service when a homeowner has an ongoing comfort complaint that hasn't been solved by individual component repairs, checking the whole chain from sensor to thermostat to control board to equipment output rather than testing components in isolation.
Frequently Asked Questions, HVAC System Calibration
HVAC Electrical or Thermostat Issue?
We trace faults to the actual source, not replace parts until something works.