Best Furnace Repair Companies in San Antonio, TX
Furnace Repair in San Antonio: NATE certification + gas safety
Furnace repair is gas + combustion work — credentials carry more weight than for AC. NATE certification and EPA 608 are the baseline. Here is what each of the 18 providers below publishes: In Texas, HVAC contractors must hold an active TDLR TACLA license — ask for the number and verify on tdlr.texas.gov before paying.
Top picks
EZ Air Conditioning & Heating★ Best NATE-Certified Team
Furnace Repair score: 5.0
Vouched Score: 88/100
No-heat diagnostician. NATE Certified and same-day Emergency.
- NATE: ✓
- Emergency: same-day
- Mfg dealer: Carrier President’s Award Winner
- Flat-rate: ✓
- Free estimates: ✓
- Years: 25+
Google 4.9★ (585+)BBB 5.0★ (2)
Radiant Plumbing & Air Conditioning
Furnace Repair score: 4.9
Vouched Score: 90/100
Driven by: same-day Emergency
- Emergency: same-day
- Flat-rate: ✓
- Free estimates: ✓
- Years: 40+
Google 4.8★ (2,180+)BBB 3.67★ (6)
All About Air Conditioning & Heating LLC
Furnace Repair score: 4.3
Vouched Score: 80/100
Driven by: same-day Emergency
- Emergency: same-day
- Flat-rate: ✓
- Free estimates: ✓
- Years: 4+
Google 5.0★ (295+)BBB A+
Yeti Cooling & Heating
Furnace Repair score: 4.2
Vouched Score: 78/100
Heat-system repair shop. NATE Certified paired with same-day Emergency.
- NATE: ✓
- Emergency: same-day
- Warranty: 12-Year
- EPA 608: ✓
- Flat-rate: ✓
- Free estimates: ✓
- Maintenance: ✓
- Years: 10+
Google 4.9★ (495+)
Jon Wayne Service Company
Furnace Repair score: 4.2
Vouched Score: 77/100
Gas-furnace service specialist. NATE Certified with same-day Emergency.
- NATE: ✓
- Emergency: same-day
- Mfg dealer: Lennox Premier Dealer
- Warranty: 10-Year
- Flat-rate: ✓
- Free estimates: ✓
- Maintenance: ✓
- Years: 30+
Google 4.8★ (16,780+)Yelp 2.1★ (305+)BBB 2.37★ (75+)
- Emergency: same-day
- Flat-rate: ✓
- Free estimates: ✓
- Years: 35+
Google 4.9★ (2,270+)BBB 4.96★ (165+)
Evenflow Home & Commercial Services
Furnace Repair score: 3.9
Vouched Score: 89/100
Driven by: 1-hour Emergency
- Emergency: 1-hour
- Flat-rate: ✓
- Free estimates: ✓
- Maintenance: ✓
- Years: 10+
Google 4.9★ (1,005+)
Air Care & Canyon Lake Air Conditioning
Furnace Repair score: 3.9
Vouched Score: 89/100
Driven by: same-day Emergency
- Emergency: same-day
- Mfg dealer: American Standard Authorized Dealer
- Free estimates: ✓
- Years: 50+
Google 4.9★ (745+)BBB 4.98★ (40+)
ReliaBee Air Electric Plumbing
Furnace Repair score: 3.8
Vouched Score: 87/100
Driven by: 1-hour Emergency
- Emergency: 1-hour
- Mfg dealer: Daikin Comfort Specialist, Trane Comfort Specialist
- Warranty: 12-Year
- Flat-rate: ✓
- Free estimates: ✓
- Maintenance: ✓
- Years: 8+
Google 5.0★ (890+)BBB 5.0★ (6)
- Emergency: same-day
- Flat-rate: ✓
- Free estimates: ✓
- Years: 40+
Google 4.9★ (2,540+)
- Mfg dealer: American Standard Dealer
- Maintenance: ✓
- Years: 30+
Google 4.9★ (1,135+)
County Wide Service Co.- AC, Heating and Plumbing
Furnace Repair score: 3.7
Vouched Score: 84/100
Driven by: same-day Emergency
- Emergency: same-day
- Flat-rate: ✓
- Free estimates: ✓
- Years: 65+
Google 4.9★ (735+)BBB A+
- Free estimates: ✓
- Years: 45+
Google 4.7★ (3,995+)BBB 3.58★ (15+)
- Free estimates: ✓
- Years: 35+
What customers say about furnace repair
…Leakys, ( formerly Air Systems ) did that. Mark, thank you for respecting my home with your boot covers as you and your guys entered. Thanks for being patient and answering my questions. Freaking OUTSTANDING service and install you guys did on my upstairs unit. Thanks for double checking the gas furnace safety valve for any leaks and work! I’m staying with you guys for LIFE w/ my HVAC systems
Google 4.9★ (295+)
ASC Heating & Air Conditioning
Furnace Repair score: 3.4
Vouched Score: 79/100
Driven by: same-day Emergency
- Emergency: same-day
- Mfg dealer: Trane Comfort Specialist, York Certified Dealer
- Warranty: 10-Year
- Flat-rate: ✓
- Free estimates: ✓
- Years: 15+
Google 4.9★ (530+)BBB 5.0★ (9)
- Flat-rate: ✓
- Free estimates: ✓
- Years: 14+
What customers say about furnace repair
Very impressed. I received a ridiculous quote from a different vendor and Felix provided a much more reasonable quote for replacing my AC unit, furnace, and duct work. Tony stayed in communication with me and the team arrived when they said they would and completed the install in the committed timeline. I will be using Felix in the future and will recommend to friends and family. Glad to have a cool house again.
Google 5.0★ (235+)BBB 5.0★ (2)
Goettl Air Conditioning and Plumbing - San Antonio TX
Furnace Repair score: 3.3
Vouched Score: 75/100
Driven by: 24/7 Emergency
- Emergency: 24/7
- Free estimates: ✓
- Years: 85+
Google 4.8★ (10,645+)
Champion AC - Climate Magic
Furnace Repair score: 3.3
Vouched Score: 75/100
Driven by: same-day Emergency
- Emergency: same-day
- Flat-rate: ✓
- Free estimates: ✓
- Years: 15+
Google 4.9★ (630+)
Typical Furnace Repair costs in San Antonio, TX (2026)
Last updated
Estimated ranges for San Antonio, TX. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| Furnace repair | $130–$735 |
| Ignitor or flame sensor replacement | $175–$430 |
| Heat exchanger inspection (CO safety check) | $130–$300 |
| Heat exchanger replacement (repair-vs-replace inflection) | $1,300–$3,000 |
What You Need to Know Before Scheduling HVAC Service in San Antonio
- When is a furnace problem an actual emergency vs. a next-day call?
- Carbon-monoxide alarm, smell of gas, or visible cracks in the heat exchanger → emergency. No-heat in sub-freezing weather is urgent but rarely safety-critical. Most no-heat calls are igniter, flame sensor, or gas valve — same-day fixable.
- What's the difference between a flame-sensor clean ($120) and heat-exchanger replacement ($1,500+)?
- Flame sensors clog with combustion residue and stop signaling the gas valve — quick clean or swap. Cracked heat exchangers leak CO into your home airflow and require exchanger replacement (often impractical) or full furnace replacement. The tech's CO meter reading decides which one you're facing.
- What are the mandatory HVAC licensing requirements for contractors in San Antonio, TX?
- All HVAC contractors operating in San Antonio must hold a state-issued license from the Texas Department of Licensing and Regulation (TDLR). This mandate ensures that technicians have completed required training and safety benchmarks. Always verify that your chosen professional maintains an active license under the Texas Occupations Code before allowing them to perform work on your equipment.
- Do I need a city permit for HVAC system replacements in San Antonio?
- Yes, major HVAC system replacements in San Antonio typically require a mechanical permit to ensure the installation meets local building codes. Licensed contractors are responsible for obtaining these permits and scheduling the necessary inspections upon completion. Homeowners should request confirmation that the permit process has been initiated to guarantee the work remains compliant with municipal safety standards.
- How can I find affordable HVAC services in San Antonio, TX, without sacrificing quality?
- Look for providers who offer transparent, itemized estimates and maintain long-standing reputations within the San Antonio area. While searching for affordable HVAC services in San Antonio, TX, prioritize companies that hold manufacturer-dealer designations and NATE certifications, as these indicate a commitment to standardized, high-quality workmanship. Comparing multiple detailed quotes can help you identify a fair price while ensuring the contractor carries the necessary liability insurance and workers' compensation coverage.
- Typical HVAC pricing in San Antonio, TX: what should I budget?
- Furnace repair typically runs $130–$735, and heat exchanger replacement runs $1,300–$3,000 in San Antonio, Texas. See the HVAC pricing table on this page for the full per-service breakdown.