Commercial HVAC Contractors in Plano, TX
Commercial HVAC in Plano: 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
Total Air & Plumbing
Commercial HVAC score: 4.9
Vouched Score: 91/100
Commercial-tier contractor. Carrier Factory Authorized Dealer and NATE Certified. Established 65+ Years.
- Mfg dealer: Carrier Factory Authorized Dealer
- NATE: ✓
- Years: 65+
Google 4.9★ (1,730+)BBB 3.0★ (2)
DT Air Conditioning & Heating
Commercial HVAC score: 3.8
Vouched Score: 87/100
Driven by: Established 25+ Years
- Years: 25+
Consistently strong customer feedback (5.0★ from 370+ Google reviews; BBB grade A+).
Google 5.0★ (370+)BBB A+
Typical Commercial HVAC costs in Plano, TX (2026)
Last updated
Estimated ranges for Plano, 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) | $275–$820 |
| Light-commercial AC install (per ton, installed) | $2,300–$4,550 |
| Preventive maintenance contract (per RTU / year) | $365–$1,100 |
| Commercial RTU replacement (5-ton package, installed) | $10,900–$22,750 |
| Emergency / after-hours service premium | $135–$410 |
What Every Plano Resident Should Know Before Scheduling Service
- 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.
- What are the mandatory HVAC licensing requirements for contractors in Plano, TX?
- All HVAC contractors operating in Plano must hold a valid license issued by the Texas Department of Licensing and Regulation (TDLR). This state-mandated certification ensures that technicians have completed required training and adhere to safety protocols. When hiring, you should always request the technician's license number to verify their standing through the official TDLR database before allowing any work on your property.
- Typical HVAC pricing in Plano, TX: what should I budget?
- Commercial RTU service call typically runs $275–$820, and commercial RTU replacement runs $10,900–$22,750 in Plano, Texas. See the HVAC pricing table on this page for the full per-service breakdown.