Expert mechanical services for businesses that depend on reliable climate control and building automation systems
5 Highlights on Commercial HVAC
Commercial HVAC systems keep your facility comfortable, productive, and code compliant. Our mechanical contractors deliver full-service solutions for office buildings, retail spaces, warehouses, manufacturing floors, and data centers. We handle everything from rooftop units and air handling units to chilled water systems and building automation controls.
- Complete mechanical installation for new construction and design-build projects, including ductwork, refrigerant piping, hydronic systems, and building management system integration
- 24/7 emergency service with on-call field technicians who troubleshoot and repair chillers, boilers, VAV systems, and critical environment HVAC
- Preventive maintenance contracts that include filter changes, coil cleaning, calibration, balancing, and trend logging to catch problems before equipment fails
- Energy efficiency upgrades such as VFD installation, economizer retrofits, demand control ventilation, and building controls reprogramming to cut kWh consumption
- Commissioning and retro-commissioning services that verify sequence of operations, test performance, and tune control strategies for optimal efficiency
Why Choose Our Commercial HVAC Services
PJ MAC HVAC Service & Repair employs licensed mechanical contractors and certified HVAC technicians who understand the demands of commercial facilities. Our service technicians carry digital gauges, infrared cameras, manometers, and data loggers to diagnose issues fast. We're factory-authorized to service major brands and maintain relationships with local distributors for same-day parts availability.
Our estimating team provides detailed proposals for mechanical installation, retrofit projects, and equipment replacement. We work with consulting engineers on plan-spec projects and offer design-assist services for value engineering. Every job includes submittal preparation, shop drawing coordination, and as-built documentation. Our project managers handle permitting, code compliance, and coordination with general contractors to keep your construction schedule on track.
We offer flexible service agreements from time and materials to full-service contracts with guaranteed response times. Our maintenance contracts include quarterly inspections, annual performance testing, and priority scheduling. All work comes with warranty service and detailed maintenance logs. We're bonded, insured, and carry the certifications your property manager expects.
Signs You Need Commercial HVAC Services
Commercial HVAC problems show up in comfort complaints, rising energy bills, and equipment that cycles too often or won't start. Tenants report hot spots, cold zones, and poor air distribution. Your building operator notices alarms on the building management system or gets lockout codes on chillers and boilers. These symptoms point to mechanical systems that need professional attention.
Temperature Control Issues
Temperature control issues mean your VAV boxes aren't modulating properly, reheat coils have failed, or zone dampers are stuck. Occupants complain about overheating in perimeter offices or overcooling in interior spaces. Your air handling unit runs constantly but can't maintain setpoint. The problem might be a faulty control sequence, undersized equipment, or a building automation system that needs reprogramming. Our controls technicians use laptops to check BACnet communication, verify sensor calibration, and adjust PID loops.
High Energy Consumption
High energy consumption shows up when your kW demand spikes or kWh usage climbs without increased occupancy. Inefficient operation wastes money on utility bills. Common causes include fouled coils that reduce heat transfer, leaky ductwork that dumps conditioned air into ceiling spaces, and constant volume systems that should be converted to variable air volume. We perform load calculations, measure airflow with a balometer, and log data to identify waste. Our energy projects deliver measurable savings through equipment upgrades, control optimization, and demand response strategies.
Equipment Failures
Equipment failures happen when preventive maintenance gets deferred. Compressors burn out from dirty coils and low refrigerant charge. Boilers crack from scaling and corrosion. Bearings seize in supply fans and exhaust fans. You're calling for emergency service instead of planned maintenance. Our maintenance technicians catch these problems early with infrared cameras that spot overheating motors, amp clamps that detect electrical issues, and pressure testing that finds refrigerant leaks before compressors fail.
Indoor Air Quality Complaints
Indoor air quality complaints indicate your ventilation system isn't delivering enough outside air or your filters are clogged. Occupants report stuffy conditions, odors, or respiratory irritation. Your CO2 levels exceed code requirements. The issue might be a malfunctioning economizer, exhaust fans that aren't running, or a makeup air unit that's offline. We measure air changes per hour, check damper operation, and verify your HVAC system meets ASHRAE ventilation standards.
Noise and Vibration
Noise and vibration from mechanical equipment disrupts office spaces and conference rooms. Ductwork rumbles. Pumps vibrate. Compressors rattle. These symptoms point to failed isolation mounts, unbalanced fans, or refrigerant slugging. Our field technicians identify the source with acoustical testing and recommend solutions like vibration control upgrades, duct silencers, and equipment replacement.
Expert mechanical services for businesses that depend on reliable climate control and building automation systems
5 Highlights on Commercial HVAC
Commercial HVAC systems keep your facility comfortable, productive, and code compliant. Our mechanical contractors deliver full-service solutions for office buildings, retail spaces, warehouses, manufacturing floors, and data centers. We handle everything from rooftop units and air handling units to chilled water systems and building automation controls.
- Complete mechanical installation for new construction and design-build projects, including ductwork, refrigerant piping, hydronic systems, and building management system integration
- 24/7 emergency service with on-call field technicians who troubleshoot and repair chillers, boilers, VAV systems, and critical environment HVAC
- Preventive maintenance contracts that include filter changes, coil cleaning, calibration, balancing, and trend logging to catch problems before equipment fails
- Energy efficiency upgrades such as VFD installation, economizer retrofits, demand control ventilation, and building controls reprogramming to cut kWh consumption
- Commissioning and retro-commissioning services that verify sequence of operations, test performance, and tune control strategies for optimal efficiency
Why Choose Our Commercial HVAC Services
PJ MAC HVAC Service & Repair employs licensed mechanical contractors and certified HVAC technicians who understand the demands of commercial facilities. Our service technicians carry digital gauges, infrared cameras, manometers, and data loggers to diagnose issues fast. We're factory-authorized to service major brands and maintain relationships with local distributors for same-day parts availability.
Our estimating team provides detailed proposals for mechanical installation, retrofit projects, and equipment replacement. We work with consulting engineers on plan-spec projects and offer design-assist services for value engineering. Every job includes submittal preparation, shop drawing coordination, and as-built documentation. Our project managers handle permitting, code compliance, and coordination with general contractors to keep your construction schedule on track.
We offer flexible service agreements from time and materials to full-service contracts with guaranteed response times. Our maintenance contracts include quarterly inspections, annual performance testing, and priority scheduling. All work comes with warranty service and detailed maintenance logs. We're bonded, insured, and carry the certifications your property manager expects.
Signs You Need Commercial HVAC Services
Commercial HVAC problems show up in comfort complaints, rising energy bills, and equipment that cycles too often or won't start. Tenants report hot spots, cold zones, and poor air distribution. Your building operator notices alarms on the building management system or gets lockout codes on chillers and boilers. These symptoms point to mechanical systems that need professional attention.
Temperature Control Issues
Temperature control issues mean your VAV boxes aren't modulating properly, reheat coils have failed, or zone dampers are stuck. Occupants complain about overheating in perimeter offices or overcooling in interior spaces. Your air handling unit runs constantly but can't maintain setpoint. The problem might be a faulty control sequence, undersized equipment, or a building automation system that needs reprogramming. Our controls technicians use laptops to check BACnet communication, verify sensor calibration, and adjust PID loops.
High Energy Consumption
High energy consumption shows up when your kW demand spikes or kWh usage climbs without increased occupancy. Inefficient operation wastes money on utility bills. Common causes include fouled coils that reduce heat transfer, leaky ductwork that dumps conditioned air into ceiling spaces, and constant volume systems that should be converted to variable air volume. We perform load calculations, measure airflow with a balometer, and log data to identify waste. Our energy projects deliver measurable savings through equipment upgrades, control optimization, and demand response strategies.
Equipment Failures
Equipment failures happen when preventive maintenance gets deferred. Compressors burn out from dirty coils and low refrigerant charge. Boilers crack from scaling and corrosion. Bearings seize in supply fans and exhaust fans. You're calling for emergency service instead of planned maintenance. Our maintenance technicians catch these problems early with infrared cameras that spot overheating motors, amp clamps that detect electrical issues, and pressure testing that finds refrigerant leaks before compressors fail.
Indoor Air Quality Complaints
Indoor air quality complaints indicate your ventilation system isn't delivering enough outside air or your filters are clogged. Occupants report stuffy conditions, odors, or respiratory irritation. Your CO2 levels exceed code requirements. The issue might be a malfunctioning economizer, exhaust fans that aren't running, or a makeup air unit that's offline. We measure air changes per hour, check damper operation, and verify your HVAC system meets ASHRAE ventilation standards.
Noise and Vibration
Noise and vibration from mechanical equipment disrupts office spaces and conference rooms. Ductwork rumbles. Pumps vibrate. Compressors rattle. These symptoms point to failed isolation mounts, unbalanced fans, or refrigerant slugging. Our field technicians identify the source with acoustical testing and recommend solutions like vibration control upgrades, duct silencers, and equipment replacement.
