Dependable HVAC repair in Houston matters more than most places, because this city runs its air conditioners harder and longer than almost anywhere in America. Gulf Coast humidity keeps systems working overtime from March into October, and moisture is the real enemy here — it corrodes coils, encourages mold in ductwork, and turns a small refrigerant problem into a soggy, expensive one. Add the occasional hard freeze that catches heaters unused for months, and Houston equipment takes a genuine beating.
Our team worked through HVAC companies across Houston and the surrounding neighborhoods, weighing years in operation, how quickly crews reach customers in a metro this spread out, whether the company holds a valid state license, and what patterns show up in their Google reviews. Before you start calling, take a minute to see whether your own system is signaling trouble.
Last Updated : 25 Aug 2026
HVAC repair Signs in Houston
- Airflow that feels weaker than it should
- A summer electric bill that spikes
- Warm or damp air from the vents
- Rattling, hissing, or constant short-cycling
- Rooms that never cool evenly
Don’t let these slide. Houston’s cooling season is long enough that a marginal system rarely recovers on its own — it just fails later, usually during a July heat index that has every crew in the city booked and charging after-hours rates. An early diagnostic is far cheaper than an emergency call. Here’s our ranked list of the 20 best HVAC repair companies in Houston.
Ranking Methodology:
Our team did secondary research and analyzed properly every business, and then we ranked them according to some of these points that are mentioned below, and these rankings aren't based on promotion.
1. Company Experience
2. Company Reputation
3. User Reviews
4. Service Area
5. having a license
Top 20 Best HVAC repair in Houston
1. Air Tech of Houston AC & Plumbing
HVAC Contractor
Service Offering :
- AC Repair & Installation
- AC Tune-up
- AC Emergency
- Ductless AC
- Indoor Air Quality & more
User Rating (6425+)
Customer Reviews
2. Royal Air Houston
HVAC Contractor
Service Offering :
- AC Repair & Installation
- Heating Installation
- Heating Repair
- Repair & Maintenace
- Commercial Services
User Rating (8715+)
Customer Reviews
3. Service Experts Houston
HVAC Contractor
Service Offering :
- AC Services
- Heating Services
- Heat Pumps
- Indoor Air Quality
- Duct Work Services & more
User Rating (4480+)
Customer Reviews
4. Airtron Heating & Air Conditioning
HVAC Contractor
Service Offering :
- AC Repair & Installation
- Heating Repair & Installation
- Maintenance Plans
User Rating (3665+)
5. Mission Air Conditioning & Plumbing
HVAC Contractor
Service Offering :
- AC Repair & Installation
- AC Tune-up
- Ductless AC
- Indoor Air Quality
- Air Duct Cleaning & more
User Rating (2970+)
6. All Star A/C, Plumbing & Electrical
Air Conditioning Contractor
Service Offering :
- HVAC Repair & Installation
- AC Services
- Heating Services
- Indoor Air Quality
- Ductwork & Insulation
User Rating (1980+)
7. Dave Lane’s Hi-Tech Mechanical Inc.
HVAC Contractor
Service Offering :
- AC Installation
- Ducted & Ductless AC Repair
- Heat Pump Services
- HVAC Maintenance & more
User Rating (1032+)
8. All American AC & Heating, LLC.
HVAC Contractor
Service Offering :
- AC Installation
- AC Repair
- Heating Services
- Commercial HVAC
- Maintenance & more
User Rating (1015+)
9. Air Star Now
HVAC Contractor
Service Offering :
- AC Repair & Installation
- Emergency AC Repair
- Ductless Mini Split
- Commercial AC
- Geothermal & more
User Rating (765+)
10. Houston Admiral Air
HVAC Contractor
Service Offering :
- AC Repair & Installation
- Ductless Mini Splits
- AC Tune-up
- Heat Pumps
- Commercial AC & more
User Rating (585+)
11. AIR CITY AC & HEATING LLC
Air Conditioning Repair Service
Service Offering :
- Air Conditioning
- Emergency HVAC Services
- Heating & Ductwork
- Air Quality Services
- Furnace Services
User Rating (567+)
12. Bellaire Air Conditioning
HVAC Contractor
Service Offering :
- AC Repair & Replacement
- AC Maintenance
- Ductless Mini Splits
- Indoor Air Quality
- Heating Services & more
User Rating (503+)
13. Excel Air
HVAC Contractor
Service Offering :
- AC Repair & Installation
- Air Duct Replacement
- Heating & Furnace
- Indoor Air Quality
- Commercial AC & more
User Rating (524+)
14. Cool Care Heating and Air Conditioning
HVAC Contractor
Service Offering :
- AC Installation & Replacement
- AC Maintenance & Repair
- Central Air Conditioners
- Duct Services & Ductless Systems
- Indoor Air Quality & more
User Rating (348+)
15. 75 Degree AC- Houston
HVAC Contractor
Service Offering :
- AC Repair & Installation
- AC Tune-up & Maintenance
- AC Troubleshooting Diagnosis
- Residential AC Service
- Commercial AC Service
User Rating (268+)
16. Aire Serv of Central & West Houston
HVAC Contractor
Service Offering :
- Air Conditioning
- Heating Services
- Emergency HVAC Service
- Indoor Air Quality
- Maintenance & Thermostats
User Rating (202+)
17. Ace Comfort Air Conditioning & Heating
HVAC Contractor
Service Offering :
- Air Repair & Installation
- AC Replacement & Maintenance
- Emergency HVAC Services
- Smart Thermostats
- Energy Saving Air Conditioning
User Rating (215+)
18. Master AC and Heat, LLC- The Heights
Air Conditioning Contractor
Service Offering :
- Air Conditioning
- 24/7 Emergency Services
- Heating Services
- Commercial Air Conditioning
- New Construction HVAC
User Rating (190+)
19. Smart Comfort Services
Air Conditioning Contractor
Service Offering :
- Air Conditioning
- Heating
- Duct Work
- Indoor Air Quality
- Insulation & more
User Rating (56+)
20. Revolution Air
HVAC Contractor
Service Offering :
- HVAC Services
- Installations
- Maintenance
- Emergency AC Services
User Rating (124+)
Quick Comparison of Trusted HVAC repair in Houston
| Plumbers Names | Air Tech of Houston AC & Plumbing | Royal Air Houston | Service Experts Houston |
| Years in Business | 40+ years | 15+ years | 35+ years |
| Warranty Offered | Yes* | Yes* | Yes* |
| Response Time | Same Day Service | Same Day Service | Same Day Service |
| License | Licensed & Insured | Licensed & Insured | Licensed & Insured |
| Open Time | 24/7 hours | Mon-Sat (8am-5pm) Sun (8am-4pm) | 24/7 hours |
| Emergency Service | Yes | Yes | Yes |
Local Fixer Pro Choice :
If you want our honest pick, Air Tech of Houston AC & Plumbing is where we’d start. Holding a 4.9-star average across more than 6,425 Google reviews is rare at that scale — most companies see ratings slip as volume grows, and theirs hasn’t. They also cover both HVAC and plumbing around the clock, which helps in a metro where drive times matter. Give them a call and compare their quote.
Average Cost of HVAC Repair in Houston
| Repair Type | Average Cost Range |
| Diagnostic / Service Call Fee | $75 – $200 |
| Minor Repair | $150 – $450 |
| Moderate Repair | $450 – $900 |
| Major Repair | $900 – $3000+ |
| Emergency / After-Hours Surcharge | $200 – $400 |
Prices move with system type, age, and how deep into cooling season you are. Most Houston AC repairs land between $150 and $900, averaging around $345, but after-hours labor can run $150–$250 per hour. Always get a written estimate before work begins.
Frequently Asked Questions for HVAC Repair in Houston
1. Who has the best HVAC repair in Houston?
Ans : On the strength of reviews, Air Tech of Houston AC & Plumbing stands out with 6,425+ Google reviews at 4.9 stars, and Service Experts Houston and Airtron both clear 3,600+ reviews at 4.8. For smaller shops with near-perfect scores, look at Air Star Now, Cool Care, and 75 Degree AC, all sitting at 5.0 stars. Scale versus personal service is the real trade-off here.
2. How much does AC repair cost in Houston?
Ans : Expect a diagnostic or service-call fee of $75–$200. Most repairs run $150 to $900, with the typical Houston job averaging around $345. Emergency and after-hours work is the expensive exception — labor can hit $150–$250 an hour and an after-hours diagnostic alone can reach $200–$400, so schedule during business hours when you can.
3. Do I need a permit to replace my AC in Houston?
Ans : For routine repairs, no — swapping a capacitor, recharging refrigerant, or replacing a thermostat needs no permit. But a full system changeout, condenser replacement, coil or furnace swap, ductwork change, or unit relocation requires a City of Houston mechanical permit. The fee runs about 2% of job cost plus a $47 base and roughly $34 administrative charge, and your licensed contractor should pull it for you.
4. What HVAC rebates are available to Houston homeowners?
Ans : CenterPoint Energy runs the main local program, with rebates starting around $200 for a qualifying high-efficiency air conditioner, roughly $400 or more for a heat pump, $250–$350 toward high-efficiency furnaces, and about $75 for a smart thermostat. Bonus incentives exist for heat pump conversions and income-qualified households. Confirm current tiers and approved-contractor rules with CenterPoint before you buy.
5. Why does my Houston home feel humid even when the AC is running?
Ans : Because cooling and dehumidifying are two different jobs, and Gulf Coast air makes the second one harder. An oversized unit cools the air fast, then shuts off before it pulls enough moisture out — leaving the house cold but clammy. Low refrigerant, a dirty evaporator coil, or leaky return ducts drawing in humid attic air cause the same complaint. A technician can measure indoor humidity and tell you which it is.
6. Do I need a licensed contractor for HVAC work in Texas?
Ans : Yes. Texas requires HVAC contractors to hold an Air Conditioning and Refrigeration (ACR) license from the Texas Department of Licensing and Regulation (TDLR) — typically a TACLA (Class A) or TACLB (Class B). Verify the license is active at tdlr.texas.gov before you book, and confirm the company carries liability insurance.
HVAC repair Services in United States
Note: Ratings, review counts, and hours were sourced from Google Business listings and are accurate as of the time of writing. Businesses may update pricing, hours, or availability — always confirm directly before booking.
