Licensed & Certified HVAC Contractor
Why San Antonio Trusts A-OK Services
Our 24-Hour Commitment
When you contact A-OK Services, we guarantee a response within 24 hours. For emergency AC or heating issues, our certified technicians are available around the clock to restore your comfort. Licensed (TACLA29221C), insured, and locally owned—your trusted HVAC partner in South Texas.
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Complete HVAC Solutions for San Antonio
Professional HVAC service backed by Texas license TACLA29221C and 15+ years of experience.
Heating Services
When your furnace stops working during a Texas cold snap, our 24/7 furnace repair service responds within 2 hours. We diagnose and repair all major brands including Carrier, Trane, Goodman, and Rheem.
Need a new system? We offer heating system installation with 0% financing options. Our preventive maintenance program keeps your system running efficiently and extends its lifespan.
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Air Conditioning Services
Texas summer is no joke. When your A/C fails, our emergency AC repair team gets you cool again fast. We serve San Antonio and surrounding communities with same-day response.
As authorized Mitsubishi Electric and Heil Elite dealers, we offer premium AC installation with high-efficiency equipment. Considering alternatives? Heat pumps provide efficient cooling and heating in one system.
Keep your system running smoothly with regular AC maintenance — prevent costly breakdowns and reduce your energy bills.
View All AC ServicesSpecialty Services
Running a restaurant or food business? Our commercial refrigeration service keeps your walk-in coolers and freezers running 24/7. We understand that downtime means lost inventory.
Improve your home's air quality with professional duct cleaning and indoor air quality solutions. Perfect for families with allergies or respiratory concerns.
Upgrade your home with smart thermostats for better control and energy savings. No ductwork? Ductless mini-split systems provide zone control without major renovations.
View Specialty Services24/7 HVAC Service Across 17 South Texas Communities
From our home base in Elmendorf, we serve the entire San Antonio metro area and surrounding rural communities.
San Antonio Metro Area
Our technicians provide fast-response HVAC service throughout San Antonio, from downtown to the suburbs. We regularly serve Windcrest in the northeast, Balcones Heights to the north, and Pecan Valley to the south.
East Bexar County & Beyond
Our home base in Elmendorf positions us perfectly to serve rural communities like China Grove, Calaveras near the lake, and agricultural areas including Sayers and Martinez.
Regional Communities
We extend our service to Von Ormy in southwest Bexar County, Floresville in Wilson County, and growing residential developments like Sandy Oaks. We also serve Frio and La Salle counties.
Our HVAC Service Process
Five simple steps from your call to complete satisfaction
Step 1: Contact Us 24/7
Phone, Text, or Online
Call (210) 501-9445 anytime—day, night, weekends, or holidays. We answer every call and schedule service at your convenience.
Step 2: Fast Response & Diagnosis
Licensed Technicians Arrive Quickly
Our certified technicians arrive promptly with fully-stocked trucks. We diagnose the problem accurately using advanced diagnostic equipment.
Step 3: Transparent Pricing
Upfront Quotes Before Work Begins
You will receive clear pricing before we start any work. No hidden fees, no surprises—just honest estimates you can trust.
Step 4: Expert Repair or Installation
Quality Workmanship Guaranteed
Our technicians complete repairs efficiently using quality parts. We explain what we are doing and answer all your questions.
Step 5: Follow-Up & Guarantee
Customer Satisfaction Ensured
We test the system thoroughly, clean our work area, and ensure you are completely satisfied. Our work is guaranteed.
Rated 4.7 Stars by 80+ San Antonio Customers
See what our neighbors are saying about A-OK Services. Real reviews from real customers across the greater San Antonio area.
24/7 Emergency HVAC Service in San Antonio
AC Failures • Heating Breakdowns • Refrigeration Emergencies
When to Call for Emergency Service
AC Emergencies
- • Complete AC failure during heatwave
- • Strange smells or sounds from AC unit
- • No cooling with temperatures above 95°F
Heating Emergencies
- • No heat during freezing temperatures
- • Gas smell near furnace
- • Frozen pipes risk from heating failure
Our Emergency Response Times
San Antonio Metro
30-90 minute response for emergency calls
Elmendorf Area
10-20 minute response (we are local!)
Surrounding Areas
Response times vary by location—call for details
Emergency Service Areas
We provide 24/7 emergency HVAC service throughout San Antonio, Elmendorf, Von Ormy, Windcrest, China Grove, Floresville, and all surrounding South Texas communities.
Visit Our Elmendorf Location
A-OK SERVICES LLC
17812 I-37, Elmendorf, TX 78112
Open 24 Hours | License: TACLA29221C