A/C, Heating

Goodman HVAC System Replacement in Leander, TX

Written by Tommy Rathburn

When a Leander homeowner needed a reliable HVAC upgrade, they called Radiant Plumbing & Air Conditioning. Our team installed a full Goodman gas furnace and central AC system, added an ecobee smart thermostat, and cleaned up the airflow path for better temperature control throughout the home.

Job Overview

Location: Leander, TX
Client Type: Residential homeowner
Scope: Full HVAC system replacement—new outdoor condenser on a new pad, upflow furnace in a hallway closet, coil, filter base, plenum transition, and smart thermostat installation
Equipment Installed: Goodman GSXH5 air conditioner, GM9S80 gas furnace (60k BTU), CAPTA cased coil, and an ecobee smart thermostat
Why It Mattered: The existing system showed age and efficiency loss. The upgrade brings steadier temps, safer operation, and a modern control that helps the homeowner manage energy use.

What We Found

During our onsite review, the original system was aging and underserving peak demand. The indoor unit’s closet install had a tight return path and dated connections. Outdoor, the placement needed a fresh, level pad and proper clearances to support long-term performance.

The Solution

Radiant’s installation team set a new, level equipment pad and placed the Goodman GSXH5 condenser with correct clearances. Indoors, we installed a GM9S80 upflow furnace with a matched CAPTA coil, built a new filter base, and fabricated a clean plenum transition to improve airflow. We updated refrigerant, drain, low-voltage, and gas connections, commissioned the system, and paired an ecobee smart thermostat so the homeowner can monitor and adjust settings from anywhere. Final steps included closing the City of Leander permit and registering equipment for warranty.

Photo Highlights

The Results

After startup and testing, the home now holds target temperatures more evenly from room to room. The ecobee controller gives the homeowner simple scheduling and insight into run times. With a clean install and registered warranty, maintenance will be straightforward for years to come.

Trusted HVAC Experts in Greater Austin

Since 1999, Radiant Plumbing & Air Conditioning has helped Leander homeowners replace aging AC systems with dependable, code-compliant installs. If you’re planning a change-out or looking to stabilize temperatures at home, our licensed team is ready to help. Ask about our Radiant Care Club for priority service and seasonal tune-ups.

Ready for an upgrade? Schedule online and discover why your neighbors say, “Just Call Radiant.”

Frequently Asked Questions

Can I replace an AC condenser?

Replacing an AC condenser is a complex job that should always be handled by a licensed HVAC professional. The process involves much more than just swapping out a part — it requires the right tools, technical expertise, and knowledge of refrigerant handling to ensure your system runs safely and efficiently.

Here’s what a professional AC condenser replacement typically involves:

Shutting off power to the system for safety
Recovering refrigerant following EPA guidelines
Disconnecting electrical components and refrigerant lines
Removing the old condenser unit
Installing and properly positioning the new condenser
Reconnecting electrical and refrigerant lines
Pulling a vacuum to remove moisture and air
Recharging the system with the correct refrigerant
Testing system performance and ensuring everything works smoothly

At Radiant Plumbing & Air Conditioning, we’ve been replacing AC condensers for Texas homeowners since 1999. Our technicians handle every step with precision and care, so you can feel confident your system is installed correctly, backed by warranties, and built to last. We also check for related issues like ductwork problems or thermostat compatibility to make sure your home stays cool and efficient.

How do I know if my air handler needs repair or replacement?

Strange noises, poor airflow, and inconsistent temperatures are all red flags. Our experts can diagnose the issue and help you decide whether a quick repair or full replacement makes the most sense. Don’t wait—schedule a professional inspection today.

Can Radiant replace my old thermostat with a smart thermostat?

Absolutely. Our licensed pros can safely remove your old unit, wire in your new smart thermostat, and make sure it talks seamlessly with your HVAC system. We’ll even help you connect it to your Wi-Fi and show you how to use it before we leave.