A San Marcos replacement has to survive the way houses are built there. A mix of smaller older homes and standard suburban attic systems. Some rentals have been ‘repaired’ with the cheapest available part. San Marcos is hot and noticeably humid. Winters are mild, with occasional freezes that still shut down neglected heat.
San Marcos has campus rentals, older houses, and newer subdivisions on the edges. River-corridor humidity means an oversized system can hit the setpoint and still leave the house damp. Rentals add deferred maintenance: filters, drains, and contactors that should have been replaced a year ago.
AC Installation issues we see in San Marcos
Systems that cool the thermostat and leave the air damp
Short-cycling equipment does not dehumidify. In San Marcos that feels like a failed air conditioner even when the supply air is cold.
Drain and closet problems in smaller homes
Air handlers in closets overflow into the house when the trap is wrong. That is a common San Marcos call after a heavy cooling week.
What the visit includes
- Existing tonnage versus the house as it is today
- Duct condition, returns, and obvious leakage
- Electrical capacity and disconnect location
- Condenser location, clearance, and drainage
- Indoor coil match and line set condition
- Thermostat location and whether zoning is already there
Neighborhoods in this San Marcos route
San Marcos is a southern route with Kyle, not a side trip from Georgetown.
- Downtown San Marcos
- Blanco Vista
- Cottonwood Creek
ZIP codes: 78666.
How we handle the job
01Survey the house
We look at rooms, glass, attic ducts, and the equipment that is there. Photos are part of the quote.
02Quote options, not a single take-it-or-leave-it number
Good, better, and the duct work each option still needs. Efficiency is explained in plain language, not as a sticker.
03Install and walk through
Commissioning includes airflow, drainage, and a thermostat you know how to use. We haul off the old equipment.
AC Installation questions in San Marcos
Yes. AC Installation is scheduled across San Marcos in Hays County. San Marcos is a southern route with Kyle, not a side trip from Georgetown.
We look at rooms, glass, attic ducts, and the equipment that is there. Photos are part of the quote. Good, better, and the duct work each option still needs. Efficiency is explained in plain language, not as a sticker. Commissioning includes airflow, drainage, and a thermostat you know how to use. We haul off the old equipment.
Only if the old tonnage was right. We check the house first. Oversizing is a common Texas mistake and it shows up as short cycling and poor humidity control.
Removal of the old equipment, the new indoor and outdoor match we agreed on, electrical and drainage connections, thermostat setup, commissioning, and a walkthrough. Duct changes are quoted on their own line if you need them.
A straightforward split-system replacement is usually one day. Homes with two systems, difficult access, or duct repairs can take longer, and that is part of the quote.
Same service nearby
Related in San Marcos: AC Repair, Heat Pumps, Air Duct Services, Ductless Mini-Splits.
