Commercial HVAC Contractors in Houston, TX
Commercial HVAC in Houston: credentials + service contracts
Commercial HVAC service hinges on EPA 608 universal certification (for refrigerant types not in residential), NATE certification, and the contractor's commercial track record. Here is what each of the 2 contractors 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
- Maintenance: ✓
- Years: 60+
Google 4.9★ (460+)BBB A+
P & M Air Conditioning and Heating
Commercial HVAC score: 3.9
Vouched Score: 72/100
EPA-certified refrigerant team. Carrier Factory Authorized Dealer with NATE Certified. Plus Established 75+ Years.
- Mfg dealer: Carrier Factory Authorized Dealer
- NATE: ✓
- Maintenance: ✓
- Years: 75+
Google 4.7★ (225+)BBB A+
Typical Commercial HVAC costs in Houston, TX (2026)
Last updated
Estimated ranges for Houston, TX. Actual cost varies with system tonnage, building square footage, and service-contract scope — always request a written quote for your facility.
| Service | Typical range |
|---|---|
| Commercial RTU service call (diagnostic + minor repair) | $265–$800 |
| Light-commercial AC install (per ton, installed) | $2,250–$4,450 |
| Preventive maintenance contract (per RTU / year) | $355–$1,050 |
| Commercial RTU replacement (5-ton package, installed) | $10,700–$22,300 |
| Emergency / after-hours service premium | $135–$400 |
What Every Houston Resident Should Ask Before a Service Call
- How does commercial HVAC service differ from residential?
- Rooftop package units (RTUs) instead of split systems, EPA 608 universal certification required for refrigerant handling, service contracts with quarterly preventive maintenance vs. on-demand calls. Light-commercial (under 25 tons) overlaps with residential capacity; true commercial starts at 25+ tons with VAV or VRF complexity.
- How much does HVAC service cost in Houston, TX?
- Commercial RTU service call typically runs $265–$800, and commercial RTU replacement runs $10,700–$22,300 in Houston, Texas. See the HVAC pricing table on this page for the full per-service breakdown.