fast diagnostics. same-day service.
all RTU brands repaired
Commercial RoofTop Unit Repair in manalapan, NJ
If your commercial rooftop unit isn’t heating or
cooling, keeps short cycling, or is stuck in lockout,
MG Air Group provides expert commercial RTU
repair in Manalapan and throughout Monmouth
County. We diagnose the problem accurately and
restore reliable operation quickly, minimizing
downtime for your business.
$55 DIAGNOSTICS
SAME-DAY Service
RTU Repair in Manalapan and across Monmouth & Middlesex Counties, NJ
â– Gas/electric packaged rooftop units
â– Heat pump rooftop systems
â– Multi-zone commercial RTUs
â– Make-up air rooftop systems
â– Older R-22 rooftop units
â– Newer R-410A high-efficiency models
Our technicians service:
No matter the brand or age, we can repair your commercial rooftop system.
Common Rooftop Unit Problems We Fix
If you notice any of these issues, it’s time for professional commercial HVAC repair:
✔ RTU not heating or cooling
✔ Unit stuck in safety lockout
✔ Blower motor or belt failure
✔ Gas ignition failure
✔ Water leaking from rooftop unit
✔ Loud vibration or grinding noise
✔ Frequent breaker trips
✔ High energy bills
✔ Uneven temperature in building zones
New Jersey weather is tough on rooftop systems — proper repair prevents major failures
Why Commercial Rooftop Units Fail in Monmouth County
In Manalapan and surrounding areas, rooftop HVAC systems operate in extreme conditions — heat, snow, rain, and wind exposure year-round.
Common causes of failure include:
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â– Worn blower belts
â– Worn blower belts
â– Dirty evaporator or condenser coils
â– Failed contactors or relays
â– Cracked heat exchangers
â– Refrigerant leaks
â– Electrical component fatigue
​
Lack of routine maintenance MG Air Group performs full diagnostics to prevent repeat breakdowns and unnecessary replacements
Commercial Rooftop Unit Repair in Manalapan and Nearby Areas
Manalapan, NJ
Freehold, NJ
Marlboro, NJ
Old Bridge, NJ
Englishtown, NJ
Monroe Township, NJ
Colts Neck, NJ
East Brunswick, NJ
Our local location allows us to respond quickly to service calls
Should You Repair or Replace Your Rooftop Unit?
â– If your commercial rooftop unit is under 12–15 years old, most issues can be repaired cost-effectively
We help business owners decide based on:
• System age
• Repair cost vs replacement cost
• R-22 vs R-410A refrigerant
• Energy efficiency
• Building heating/cooling demand
• Overall equipment condition
​
We never push replacement unless it truly makes financial sense
Commercial Rooftop Unit Repair FAQs
Q: How do I know if I need rooftop unit repair in Manalapan?
A: If your building has no heat, no cooling, unusual noise, or repeated shutdowns, it’s time to schedule professional commercial HVAC repair
​
Q: Why does my rooftop unit keep going into lockout?
A: This is often caused by ignition issues, airflow restrictions, safety trips, or faulty sensors. Proper diagnostics are required
​
Q: How much does commercial RTU repair cost?
A: Costs depend on the issue. We provide upfront pricing before any repair begins — no surprises
​
Q: Do you provide emergency commercial HVAC repair?
A: Yes. We offer emergency rooftop unit service in Manalapan and surrounding areas
​
Q: Do you service older R-22 rooftop units?
A: Yes, but if major repairs are needed, we may recommend replacement due to refrigerant phase-out
