Complete loss of cooling
During extreme heat.
Call Mighty Air at (904) 292-0636 to Confirm Availability
When your heating or cooling system suddenly stops working, starts making alarming noises, or produces a burning or electrical odor, you need a local HVAC company that can help you understand what to do next.
Mighty Air provides emergency HVAC service for qualifying urgent heating and cooling problems throughout Jacksonville and surrounding Northeast Florida communities. Our team can help assess your situation, explain available service options, and arrange an appointment based on current technician availability.
Emergency HVAC service: call (904) 292-0636 to confirm availability.Not every HVAC problem needs emergency service, but some symptoms should be taken seriously. Call Mighty Air if you're dealing with:
During extreme heat.
During cold weather.
Turn the system off if it's safe to do so.
If it trips again, don't keep resetting it.
Leaks can damage floors, ceilings and walls quickly.
Sudden mechanical noise usually means something has failed.
Repeated restarts can strain the equipment.
Young children, older adults, or anyone with health concerns.
If the system still won't run after these checks, turn it off and call us. Don't open electrical panels or attempt internal HVAC repairs yourself.
Make sure it has power and is set correctly for heating or cooling.
Check for a filter that is severely clogged.
Check whether the HVAC breaker has tripped. If it trips again, don't keep resetting it.
Many sudden breakdowns come down to a single failed part. Our technicians diagnose the system, find the actual cause, explain what we found, and walk you through your repair or replacement options before any work begins.

A sudden AC failure gets uncomfortable fast in Jacksonville's heat and humidity. If your air conditioner or heat pump stops cooling, loses airflow, trips breakers, or leaks water, see our AC Repair page for more on urgent cooling problems.
Emergency AC Repair
Heating emergencies are less common in Northeast Florida, but a complete loss of heat can still be urgent when temperatures drop. Most homes here heat with a heat pump, and Mighty Air diagnoses heat pumps, auxiliary heat, thermostats, and controls.
Heating Repair ServicesOur technicians evaluate your system, explain recommended repairs, and review applicable offers before work begins.
Offer applies to qualifying repairs. Contact Mighty Air for current promotions, eligibility, and details. Cannot be combined with other offers unless otherwise stated.
Mighty Air provides emergency heating and cooling service for residential and qualifying light commercial properties in Jacksonville, Orange Park, St. Johns, St. Augustine, and nearby communities.
Running a business? See our Commercial HVAC Services.

Not every emergency can be prevented, but routine maintenance helps catch worn parts, drainage problems, and airflow issues early. Learn more about AC Maintenance and our Maintenance Memberships, which include two seasonal visits a year and a repair discount.
Our name is on every van and every invoice. Call, tell us what the system is doing, and we'll confirm availability and help you understand what to do next.
Quick answers to the questions Jacksonville homeowners ask us most when their system stops.
Have a question that isn't here? Call (904) 292-0636 and tell us what's happening.
Request ServiceCall Mighty Air at (904) 292-0636 to discuss your problem and confirm current emergency service availability.
It can be, especially during extreme heat or when high indoor temperatures affect vulnerable occupants.
A burning or electrical odor should not be ignored. Turn the system off if it's safe and call a professional. If there's smoke or fire, leave the area and call 911.
Often, yes. Many breakdowns involve a single component that can be repaired or replaced. The system should be diagnosed before deciding on replacement.
Yes. Mighty Air provides emergency service for residential and qualifying light commercial properties in Jacksonville and surrounding areas.
Contact Mighty Air to discuss your heating or cooling problem and confirm current emergency service availability.
Mighty Air is a family-owned HVAC company serving Jacksonville and Northeast Florida since 2016.
Mighty Air HVACJacksonville, FloridaCall Mighty Air, Inc. at (904) 292-0636 for emergency HVAC service in Jacksonville, FL, and surrounding areas.
For urgent problems, calling is fastest. For everything else, tell us what's going on and we'll get back to you.
Need help right now? Call (904) 292-0636