Compare the highest-rated hvac professionals in San Marcos, Texas. All contractors are licensed, insured, and verified through our rigorous screening process.
A full-service HVAC contractor specializing in high-efficiency system installations and complex repairs for San Marcos' extreme heat conditions. They are authorized dealers for Trane and Lennox systems and focus on energy-efficient solutions tailored to the local climate.
Specializes in residential and light commercial HVAC services with expertise in heat pump systems and smart thermostat integration. Known for thorough maintenance plans that help systems withstand the intense Texas summer heat while improving indoor air quality.
Provides comprehensive HVAC services with a focus on emergency repairs and system replacements. They work with Carrier and Rheem equipment and have extensive experience with both older homes in historic districts and new construction in developing areas.
San Marcos experiences a humid subtropical climate with long, extremely hot summers (average highs 94°F+) and mild winters, creating heavy demand for reliable AC systems. The rapid growth from Texas State University and Austin metro expansion has increased HVAC service needs. Summer emergency calls peak during July-August heat waves, while winter brings furnace maintenance demands during occasional cold snaps. Energy efficiency is particularly valued due to high summer electricity costs.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with San Marcos regulations and climate
Get answers to common questions about hvac services in San Marcos, Texas.
For a full system replacement (air conditioner and furnace or heat pump) in San Marcos, homeowners can expect to invest between $6,000 and $12,000+, depending on system size, efficiency rating, and home complexity. The intense Texas summer heat demands a properly sized, high-efficiency unit (look for SEER 16+), which can be a higher initial investment but saves significantly on monthly energy bills. Always get multiple detailed, written estimates that include removal of the old unit, new ductwork modifications if needed, and a 10-year parts warranty.
The absolute best times are during the mild shoulder seasons of early spring (March-April) and early fall (September-October). Scheduling during these periods ensures your system is serviced and ready for the extreme summer heat or occasional winter chill, and you'll find greater technician availability and potentially better pricing. Avoid waiting for a mid-summer emergency breakdown when every HVAC company in the region is at peak demand, leading to longer wait times and higher service fees.
Yes, in Texas, all HVAC contractors must be licensed by the Texas Department of Licensing and Regulation (TDLR). Always verify a company's TDLR license before hiring. Furthermore, San Marcos and Hays County follow the International Residential Code (IRC), which includes specific requirements for equipment placement, electrical connections, and permits for new installations; a reputable local contractor will handle all necessary permits. There are no specific local refrigerant regulations beyond federal EPA guidelines.
Start by verifying their TDLR license and checking for positive reviews on local platforms like Nextdoor. Choose a company with deep local experience, as they understand how San Marcos' unique climate—with high humidity from the river and intense sun—impacts system performance and sizing. A trustworthy provider will perform a Manual J load calculation for your specific home, offer clear financing options, and provide references from nearby neighborhoods.
It is normal for your system to run in longer cycles during peak summer heat, especially on days over 100°F. However, if it runs non-stop without adequately cooling your home (e.g., not reaching the thermostat setpoint), it indicates a problem. Common local issues include refrigerant leaks, a failing compressor, or an undersized unit. Reduced airflow from dirty filters or clogged condenser coils (common with our high pollen and dust) can also cause this; schedule a diagnostic service to prevent a complete failure.