Commercial climate control has different demands than residential: high occupancy loads, equipment heat gain, code compliance, and the cost of downtime. We understand the difference and bring the right tools and parts to every job.
Commercial HVAC Systems We Service in Hammond
Rooftop package units (RTUs)
The most common commercial HVAC configuration in Hammond retail and light commercial buildings. We service, repair, and replace all major RTU brands including Carrier, Trane, Lennox, York, and Daikin.
Commercial split systems
Split system configurations for medium commercial spaces: retail, medical offices, professional suites.
VRF / VRV systems
Variable refrigerant flow systems for larger commercial buildings needing multi-zone temperature control. We install and service Mitsubishi, Daikin, and LG VRF systems.
Commercial heat pumps
Large-scale heat pump systems for commercial buildings. Efficient for Hammond's predominantly mild winters.

Commercial air handlers
Inspection, repair, and replacement of commercial-grade air handlers and their components.
Make-up air units
For commercial kitchens and manufacturing facilities needing fresh air replacement for exhaust systems.
Commercial HVAC Services
- Emergency HVAC repair
- Planned preventive maintenance
- Full system replacement
- New construction installation
- Energy efficiency audits and upgrades
- Ductwork design, repair, and replacement
- Commercial thermostat and building controls
- Refrigerant management (EPA 608 certified)
Hammond Commercial HVAC Coverage
From single rooftop package units on Hammond strip centers to multi-unit split systems in office buildings, our commercial team handles installation, replacement, and service. We pull permits, coordinate with property managers, and document every job.

Common Commercial HVAC Calls We Take
- Rooftop unit no-cool during business hours
- Failed economizer and outside-air dampers
- VRF zone not heating or cooling
- Make-up air units locked out
- Aging package units evaluated for replacement
Hammond Service Area and Response Time
From our Hammond shop at 44094 Covington Ridge Drive we cover Hammond, Ponchatoula, Amite, Independence, Robert, Tickfaw, Albany, Springfield, Loranger, Natalbany, and the surrounding parts of Tangipahoa, Livingston, and St. Helena Parish. Same-day arrival for most calls placed before 2 PM, and 24/7 emergency dispatch when you need it most.
Why Hammond Customers Pick TMAC
- Licensed Trane Dealer, BBB Accredited, NCCER credentialed
- Live dispatcher 24/7 at (985) 215-8688
- $95 flat trip fee, waived on any repair over $350
- Upfront flat-rate pricing approved before work starts
- Written work orders with photos and equipment data
- Family-operated, based and based-out-of Hammond
Schedule This Service in Hammond
Call or text (985) 215-8688. We answer the phone around the clock. Or stop by our Hammond shop at 44094 Covington Ridge Drive, Hammond, LA 70403.

