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L & J Cooling and Heating provides commercial HVAC repair, diagnostics, preventive maintenance and equipment replacement for businesses throughout Troutman, Mooresville, Statesville and the Lake Norman area. We service commercial split systems, package units and rooftop HVAC equipment with a focus on dependable operation, accurate diagnostics and practical recommendations.
Troubleshooting and repair for commercial rooftop units, package systems and other light-commercial HVAC equipment, including electrical, refrigeration, airflow and control-related problems.
Scheduled commercial HVAC maintenance designed to identify developing problems, improve reliability and help keep equipment operating properly throughout the year.
Commercial HVAC replacement and installation when existing equipment is aging, unreliable or no longer practical to repair.
Service, maintenance and replacement for rooftop and packaged heating and cooling systems commonly used in commercial buildings.
Diagnosis and service of commercial thermostats, controls, wiring and related system components affecting HVAC operation.
After-hours HVAC service is available for qualifying commercial customers when heating or cooling problems cannot reasonably wait until normal business hours.
Commercial HVAC equipment often operates for long hours under demanding conditions. Routine preventive maintenance can help identify developing problems, maintain proper airflow and operation, and reduce the likelihood of unexpected equipment failures.
Commercial maintenance may include:
Scheduled Maintenance Agreements
L & J Cooling and Heating can develop recurring preventive-maintenance schedules for businesses with individual systems or multiple rooftop units. Maintenance frequency and scope can be tailored to the equipment, operating conditions and needs of the property.


L & J Cooling and Heating services commercial properties with multiple rooftop and packaged HVAC systems. Our work includes diagnostics, repairs, preventive maintenance and equipment-condition evaluation.

From routine filter and belt service to refrigeration, electrical and airflow diagnostics, we provide hands-on commercial HVAC service designed around the needs of the property and its equipment.
Commercial HVAC problems do not always require equipment replacement. L & J Cooling and Heating evaluates the system, identifies the cause of the problem and explains the available options before recommending the next step.
Repair may make sense when:
Replacement may be worth considering when:
When replacement is appropriate, we can help compare equipment options, efficiency, controls and long-term operating costs for the property.

Commercial York rooftop HVAC unit being serviced by L & J Cooling and Heating
Yes. L & J Cooling and Heating services rooftop and packaged HVAC systems, including diagnostics, repairs, preventive maintenance, controls and equipment replacement.
Yes. We can set up recurring maintenance schedules based on the number of systems, equipment type, operating conditions and needs of the property.
Yes. We service commercial properties with individual systems as well as facilities with multiple rooftop units and can coordinate maintenance and repairs across the equipment.
After-hours service is available for qualifying commercial customers when heating or cooling problems cannot reasonably wait until normal business hours.
Yes. We diagnose commercial packaged equipment and can recommend repair or replacement based on equipment condition, age, repair history, parts availability and operating needs.
Maintenance frequency depends on equipment type, runtime, building use and operating conditions. Many commercial systems benefit from maintenance multiple times per year, especially equipment that operates for long hours or serves high-occupancy facilities.
Whether you need commercial HVAC repair, preventive maintenance, rooftop unit service or equipment replacement, L & J Cooling and Heating is ready to help businesses throughout Troutman, Statesville, Mooresville, Lake Norman and surrounding communities.
L & J Cooling and Heating LLC
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