Licensed HVAC Contractor in San Antonio
AC repair and HVAC service in San Antonio from a licensed veteran-owned contractor: no-cool diagnostics, replacements, ductwork, and maintenance.
C.S.W. Power Solutions is a licensed HVAC contractor in San Antonio operating under Texas Air Conditioning and Refrigeration license TACLA26479R. We diagnose, repair, and replace residential and light-commercial cooling and heating systems built for South Texas summers and short cold snaps. Because electrical (TECL31793) is held in-house under the same general contractor, HVAC sizing, panel capacity, and generator readiness can be planned together. CSW provides San Antonio AC repair and HVAC service — no-cool diagnostics, AC replacement, ductwork, mini-splits, and thermostats — for homes and light-commercial properties across San Antonio, Castle Hills, and Boerne. HVAC is one of the licensed trades held in-house under CSW's veteran-owned general contractor umbrella.

AC Repair and No-Cool Diagnostics
Weak airflow, warm air at the registers, short cycling, frozen coils, blocked condensate drains, electrical faults, thermostat issues, and refrigerant problems are all diagnosed before any repair recommendation is written. We document what we measured — supply and return temperature split, static pressure, capacitor reading, breaker condition — so the homeowner sees why the recommendation is what it is.
Complete AC Changeouts and System Replacement
When repair is no longer the right call, complete changeouts cover sizing (Manual J informed by Texas summer load, attic geometry, and clay-soil foundation effects), line-set inspection or replacement, electrical disconnect, thermostat, permit, startup, and inspection. Goodman, RunTru, Payne, Oxbox, and other supported brands; 14.3–15.2 SEER2 baseline with premium options available.
Ductwork, Mini-Splits, and Thermostats
Ductwork inspection, leak sealing, undersized run replacement, and full duct retrofits for older San Antonio homes. Single-zone and multi-zone ductless mini-splits for garages, additions, sunrooms, and historic homes without ducts. Smart thermostat installation (Nest, Ecobee, Honeywell) with proper C-wire and multi-zone configuration.
HVAC and Generator Load Planning Together
Because electrical is held in-house, generator load planning and HVAC sizing can be coordinated — air handler, condenser, and electric strip heat can be wired through a transfer switch where standby capacity supports it. Whole-home and essential-load configurations are reviewed against panel capacity and gas supply.
Frequently Asked Questions
How much does AC repair cost in San Antonio?
Most San Antonio AC repairs run roughly $150 to $1,000 depending on the part: capacitors and contactors are on the low end, while compressor or evaporator-coil work is higher. We measure the system (temperature split, static pressure, capacitor reading, refrigerant charge) and document the findings before recommending a repair.
Should I repair or replace my AC?
Repair usually makes sense for newer systems and isolated part failures. Replacement is often the better value once a system is 10 to 15+ years old, uses R-22 refrigerant, or needs a major component. New systems are sized with a Manual J load calculation for South Texas heat, typically at a 14.3 to 15.2 SEER2 baseline with higher-efficiency options available.
Are you a licensed HVAC contractor in San Antonio?
Yes. HVAC work is performed under Texas Air Conditioning and Refrigeration Contractor license TACLA26479R, issued by the Texas Department of Licensing and Regulation and held by the general contractor itself. Because electrical (TECL31793) is in-house too, AC sizing, panel capacity, and generator readiness are planned together.
Do you offer same-day service when my AC stops cooling?
We schedule same-day and next-business-day no-cool visits during business hours (Mon-Fri 7 AM-6 PM, Sat 8 AM-2 PM). Call 210-504-9796. Most no-cool problems are airflow, electrical, drainage, or refrigerant related and are diagnosed before any repair is quoted.
Which areas do you serve for HVAC?
San Antonio, Stone Oak, Boerne, Schertz, New Braunfels, Alamo Ranch, Helotes, Cibolo, Converse, and the surrounding Hill Country and I-35 corridor, with the same licensed crews and written estimates on every job.