Fast, reliable AC repair and installation for San Antonio homes and businesses. We show up, we fix it, we stand behind our work.
Not cooling? We diagnose and fix it fast — same day when possible.
New system installs done right. We help you choose the best unit for your space and budget.
Annual tune-ups keep your system efficient and catch problems before they get expensive.
Furnace repair and heat pump service for those cold San Antonio nights.
Purifiers, UV systems, and duct cleaning for healthier air inside your home.
AC down in the Texas heat? We offer emergency response to get you back to comfortable.
"My AC died on the hottest day of the year. Lone Star had a tech out within 3 hours and fixed it same day. Truly lifesavers."
"Four years of maintenance with these guys. Always on time, always honest about what's needed and what isn't. Wouldn't trust anyone else."
"Got three quotes and went with Lone Star. Zero regrets. The new system works perfectly and our energy bill actually dropped."
Same-day appointments available throughout San Antonio and surrounding areas.
📞 Call (210) 555-0247