Best Furnace Repair Companies in Killeen, TX
Furnace Repair in Killeen: 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 11 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
Artie's Heating & Air Conditioning
Furnace Repair score: 4.7
Vouched Score: 87/100
Driven by: same-day Emergency
- Emergency: same-day
- Flat-rate: ✓
- Free estimates: ✓
- Years: 30+
What customers say about furnace repair
The two service providers were knowledgeable and professional. They thoroughly inspected the furnace and discovered a repair which needed to be done. The part was reasonable priced and the service providers had the part in supply on their truck. It made the repair easy and convenient. Now the furnace runs efficiently and smoothly, and heat is being provided. It is in the 40's with 20mph north winds so we believe this was an important discovery on the part of Artie's Heating and Cooling two service providers…
Google 4.8★ (475+)BBB A+
- Emergency: 24/7
- Flat-rate: ✓
- Free estimates: ✓
- Maintenance: ✓
- Years: 15+
What customers say about furnace repair
Chris came by to clean my coils from my furnace due to it being overdue for maintenance. Airheads quoted me 1.5k for this service while Aire Serv gave me a reasonable cost of 550. Chris was super polite and was great with my 4 dogs. AC is finally up and running properly. If you're looking for quality and service that doesn't break your bank this company is it. Will call back for future work needed. Thanks again!
Google 4.7★ (520+)
- Free estimates: ✓
- Maintenance: ✓
- Years: 10+
What customers say about furnace repair
Just had a new furnace installed by John's Best HVAC Masters. The team was very professional and finished the work quickly and efficiently. My daughter works from home, and even though her office is right next to where they were working, she said they were very quiet and didn’t disrupt her at all. Kingston took the time to explain how the new furnace system works, making sure I understood everything. I’m very pleased with the great job they did. When they finished, they left everything clean and tidy. Would definitely recommend for furnace repair or installation.
We are truly grateful for the excellent furnace repair service we received from John's Best HVAC Masters. We've called them three times in Killeen for help with our heating and cooling needs, and each time they've impressed us with their work. The first time we needed them, our furnace stopped working right after we brought our son home. Miles came out the very next day and got a new furnace installed in just two days. The price was fair, and the work was done quickly and efficiently…
Google 4.7★ (75+)
- Free estimates: ✓
- Years: 15+
What customers say about furnace repair
I chose The Coolest Air to install my new ac system in Austin and it went great! They have the best customer service but also the best install crew around. Cliff, Aaron & Daniel worked two days on converting my original Daikin FIT system to a high efficiency Dual Fuel Heat Pump system with gas furnace. The system also qualifies for a tax credit. We are excited to have them doing our maintenance from now on. They added air purifier and an IFLO drain system. Thank you guys!
Google 5.0★ (345+)BBB 5.0★ (1)
- Years: 20+
Consistently strong customer feedback (4.7★ from 485+ Google reviews; 1.0★ from 2 BBB reviews). Specific NATE / EPA credentials not published — confirm by phone.
Google 4.7★ (485+)BBB 1.0★ (2)
Comfort Plus Heating and Cooling LLC
Furnace Repair score: 3.6
Vouched Score: 82/100
Driven by: same-day Emergency
- Emergency: same-day
- Free estimates: ✓
- Years: 14+
Google 5.0★ (70+)BBB A-
- Years: 12+
Consistently strong customer feedback (4.9★ from 50+ Google reviews). Specific NATE / EPA credentials not published — confirm by phone.
Google 4.9★ (50+)
CTR Services Air Conditioning & Heating
Furnace Repair score: 2.6
Vouched Score: 79/100
Driven by: 24/7 Emergency
- Emergency: 24/7
- Flat-rate: ✓
- Free estimates: ✓
- Years: 25+
Google 4.9★ (400+)
- Emergency: same-day
- Free estimates: ✓
- Years: 15+
Google 4.9★ (235+)
Killeen Heating and Air Conditioning
Furnace Repair score: 2.5
Vouched Score: 78/100
Driven by: same-day Emergency
- Emergency: same-day
Strong customer feedback (4.5★ from 285+ Google reviews). Specific NATE / EPA credentials not published — confirm by phone.
Google 4.5★ (285+)
- Flat-rate: ✓
- Free estimates: ✓
- Years: 10+
Google 4.6★ (70+)
Typical Furnace Repair costs in Killeen, TX (2026)
Last updated
Estimated ranges for Killeen, TX. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| Furnace repair | $110–$630 |
| Ignitor or flame sensor replacement | $150–$370 |
| Heat exchanger inspection (CO safety check) | $110–$260 |
| Heat exchanger replacement (repair-vs-replace inflection) | $1,100–$2,600 |
What Every Killeen Resident Should Ask Before Scheduling Service
- 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 license do I need to verify for HVAC work in Killeen?
- Yes, all HVAC contractors in Killeen must hold a valid state license issued by the Texas Department of Licensing and Regulation (TDLR). You should verify that any technician entering your home in neighborhoods like White Rock Estates or Trimmier Estates carries this state-mandated credential. Contractors are also required to maintain general liability insurance and workers' compensation coverage to operate legally within the city.
- What are the local regulations for HVAC system replacements in Killeen?
- All HVAC replacements in Killeen must comply with the Texas Occupations Code Chapter 1301, which mandates strict safety and installation standards. These regulations ensure that your system is properly sized and installed to meet current efficiency codes. Choosing a licensed, bonded contractor is the best way to ensure your installation meets these local requirements and remains eligible for manufacturer warranties.
- How can I prepare my HVAC system for Killeen's fluctuating seasonal weather?
- Consistent maintenance is the most effective way to prepare for Killeen’s seasonal climate shifts, which can cause significant wear on cooling components. Many local experts recommend bi-annual inspections to clean coils, check refrigerant levels, and verify electrical connections before the primary cooling season begins. Taking these steps helps maintain system efficiency and prevents the need for unexpected repairs during the most demanding weather cycles.
- What does HVAC service typically run in Killeen, TX?
- Furnace repair typically runs $110–$630, and heat exchanger replacement runs $1,100–$2,600 in Killeen, Texas. See the HVAC pricing table on this page for the full per-service breakdown.