10 Best HVAC Companies in San Antonio, TX

HVAC companies serving San Antonio

Before you hire

  • Check the license. Look the company up on your state or city licensing board and confirm the license is active for this kind of work.
  • Ask for proof of insurance. Liability coverage, and workers’ compensation if a crew will be on site.
  • Get it in writing. A written estimate should list the scope, materials, labor, permits, cleanup and how changes are priced.
  • Compare more than one quote. Two or three written quotes for the same scope make it easier to spot gaps.
  • Ask who does the work. Find out whether the company’s own staff or a subcontractor will be on the job.
  • Confirm the warranty. Ask what parts and labor are covered, for how long, and get it in writing.

Frequently asked questions

How often should I service my HVAC in San Antonio

HVAC professionals in San Antonio recommend servicing twice a year — spring for AC and fall for heating. Regular maintenance prevents breakdowns during extreme weather and can extend your system's lifespan by 5-10 years

What size HVAC system do I need for my San Antonio home

Most homes in San Antonio need 2.5 to 5 tons of cooling capacity. A rough guide: 1 ton per 400-600 sq ft depending on climate, insulation, and sun exposure. Always get a Manual J load calculation from a licensed HVAC contractor for accurate sizing

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