HVAC Unit Replacement in Tucson, AZ
Gradez Heating, Cooling, Plumbing and Electrical LLC specializes in full HVAC system replacement for residential and commercial properties in Tucson, AZ. When both heating and cooling systems begin to fail or operate inefficiently, a complete replacement is often the most effective way to restore indoor comfort, ensure reliability, and improve energy efficiency. With Tucson’s intense summers and cooler desert winters, an HVAC system must be designed to perform consistently year-round under extreme conditions. We offer full replacement services that include system evaluation, equipment selection, removal of outdated components, and installation of modern, high-efficiency heating and cooling systems. Each replacement project is tailored to the property’s structure, usage needs, and long-term energy goals.
When a Full System Replacement Is Necessary
Replacing an entire HVAC system becomes necessary when both the air conditioning and heating components are aging, inefficient, or no longer functioning properly. One of the most common scenarios involves systems that are over 10 to 15 years old and require frequent repairs or produce inconsistent heating and cooling.
Signs that indicate a full replacement may be required include uneven temperatures throughout the space, noisy operation, short cycling, or poor air quality. In some Tucson homes and businesses, outdated systems also fail to meet current building codes or are incompatible with smart thermostats and energy-saving technologies.
For properties that have undergone renovations or added square footage, the existing HVAC system may be undersized or improperly balanced, leading to overwork and premature wear. Replacing both heating and cooling components at the same time ensures optimal system compatibility, efficiency, and comfort.
In commercial buildings, a full system replacement may also be driven by energy compliance requirements, ventilation upgrades, or changes in occupancy load that demand more powerful and efficient equipment.
Components Included in a Full HVAC Replacement
A complete HVAC system replacement includes all major components that manage air temperature, distribution, and ventilation. For residential systems, this typically involves replacing the outdoor condenser unit, indoor air handler or furnace, evaporator coil, thermostat, and associated refrigerant and drain lines.
In some cases, ductwork is also replaced or modified to improve airflow and accommodate changes in system capacity. For properties with older or leaky ducts, sealing or reconfiguring the duct system is an essential part of a successful installation.
Commercial replacements may include rooftop units (RTUs), split systems, or packaged systems, as well as air handlers, zoning dampers, and building automation controls. The process also accounts for fresh air intake, filtration, and compliance with indoor air quality standards. For homes or businesses converting from gas to electric heating (or vice versa), the scope may expand to include electrical panel upgrades, gas line modifications, or structural adjustments to accommodate different equipment formats.
Installation Process and Performance Testing
Our full HVAC replacement process begins with a detailed site evaluation and system load calculation to determine the proper size and configuration for your new system. This ensures balanced temperature control, efficient cycling, and reduced energy waste.
Next, we coordinate the removal of the old equipment, handling refrigerant recovery and disposal in accordance with EPA regulations. Existing ductwork, thermostats, and electrical connections are inspected and either reused or upgraded as needed to support the new system.
The new components are installed using factory-specified procedures and calibrated for Tucson’s climate, including appropriate airflow settings, refrigerant charge, and heat staging. Once installed, we conduct a full system test to verify airflow balance, cooling and heating efficiency, thermostat response, and overall performance.
In commercial installations, additional steps include integration with building management systems, testing of emergency shut-offs, and configuration of zoning systems or variable speed settings to optimize operation.
Tucson’s Climate and HVAC System Demands
Tucson’s extreme heat and dry climate put HVAC systems under constant pressure, especially during the summer months when temperatures regularly exceed 100°F. Air conditioning systems in this environment need to be powerful enough to cool large volumes of air while also durable enough to withstand continuous operation.
The winter season, while milder, still demands reliable heating during desert cold snaps—especially at night. A full system replacement ensures that both functions work seamlessly, without overtaxing one part of the system or causing uneven distribution of comfort.
Tucson’s hard water and dusty air also contribute to wear on HVAC components, especially coils and air filters. A new system with modern filtration and variable-speed controls can better manage these challenges while reducing energy consumption and maintenance needs.
Upgrading to a complete HVAC system with higher SEER and AFUE (Annual Fuel Utilization Efficiency) ratings can also make Tucson property owners eligible for rebates or incentives through local utility companies and energy-efficiency programs.
Contact Gradez Heating, Cooling, Plumbing and Electrical LLC
If your heating and cooling systems are outdated, inefficient, or no longer keeping up with Tucson’s climate, contact Gradez Heating, Cooling, Plumbing and Electrical LLC for complete HVAC system replacement. We provide end-to-end service—from system evaluation and planning to expert installation and performance testing. Call us today to schedule a consultation and restore comfort and efficiency to your home or business with a fully upgraded HVAC solution.
