24/7 Emergency Service

National Heating and Air Conditioning is here to help with 24/7 emergency HVAC services. Call us today at 513-621-4620 if you have an urgent issue in the Greater Cincinnati area! Whether your heat won’t come on during a cold snap or you’re struggling with no AC in the summer, our expert HVAC professionals are available day or night.

FREE Diagnostic Fee With Qualifying Repairs Request Service

24/7 Emergency Air Conditioning in Cincinnati, OH

AC not working? When your air conditioning decides it’s time to take a break during a hot Cincinnati summer, it can seriously disrupt your day. We all dread that feeling when our ACs go on the fritz at the absolute worst time.

That’s where we come in! National Heating and Air Conditioning understands how serious situations like these are, so we provide quick and reliable emergency AC repair in Greater Cincinnati, OH.

Our courteous staff is standing by 24 hours a day, 7 days a week, and stands ready to restore your comfort and peace of mind. Day or night, weekend or holiday, you can rely on us for prompt service by trained technicians who know exactly what to do in emergency procedures. Don’t wait for a malfunctioning AC to make matters worse.

National Heating and Air Conditioning is on speed dial for emergency air conditioning service in the Greater Cincinnati region. Call now for emergency assistance.

Why Cincinnati Trusts National for AC Emergencies

When your home turns into a sauna and your AC system fails unexpectedly, having someone you can trust is everything. National Heating and Air Conditioning has been a staple in Greater Cincinnati since 1931, making us one of the most seasoned names in the business. Our long-standing presence is a testament to our dedication to integrity, top-notch workmanship, and reliable service that you can depend on, no matter the hour.

Our NATE-certified technicians arrive quickly and are ready to restore your comfort as efficiently as possible. For added peace of mind, we also encourage homeowners to consider preventative AC maintenance to reduce the risk of unexpected emergencies.

Additional reasons we stand out:

  • 24/7 emergency service availability
  • NATE-certified, trustworthy technicians
  • Fully stocked service vehicles for faster repairs
  • Family-owned and operated company since 1931

Signs You Need Emergency AC Repair

How do you know if what you’re experiencing is a true emergency? Some issues can wait for a scheduled appointment, but others require immediate professional attention to avoid major damage, safety hazards, or unbearable discomfort.

Emergency symptoms:

  • AC not working or not turning on at all
  • AC blowing warm or hot air from vents
  • Loud, unusual noises like grinding, squealing, or banging
  • Strange odors, especially burning or electrical smells
  • Visible ice or frost buildup on coils or refrigerant lines
  • System leaking water or refrigerant

Ignoring those warning signs can lead to bigger, more expensive headaches down the road. A quick call for emergency service might just save you from a total system failure or an expensive replacement.

Our 24/7 Emergency Repair Process

When your AC is on the fritz, the last thing you want is to be in the dark. At National Heating and Air Conditioning, we’ve crafted a straightforward, stress-free emergency repair process that brings you peace of mind from the moment you reach out.

Here’s what you can expect when you reach out to us for 24/7 AC repair in Cincinnati:

  • Immediate dispatch of a NATE-certified technician to your home.
  • A thorough diagnostic of your AC system to identify the root cause
  • A clear explanation of the problem and upfront repair options
  • Expert, efficient repairs to restore your comfort as quickly as possible

By streamlining our process, we minimize downtime and maximize your comfort. Our technicians also travel in fully stocked vehicles, so they’re prepared to handle most repairs on the spot without unnecessary delays. If your AC isn’t working and you need immediate help, we aim to get you cool and comfortable again fast.

Your Go-To Team for AC Emergencies in Cincinnati

When every moment matters, you deserve a company with years of experience, a solid track record, and a genuine commitment to customer satisfaction. National Heating and Air Conditioning is proud to be Cincinnati’s go-to team for urgent cooling needs. With our 24/7 emergency response, skilled technicians, and dedication to excellence, we’re the top choice for families throughout the region.

Don’t let costs stop you from getting the service you need. We make it easier with flexible financing options so you can restore comfort without delay.

Don’t endure the heat or risk further damage to your system. For immediate emergency air conditioning services in Greater Cincinnati, contact us for immediate service with National Heating and Air Conditioning right away.

FAQs

Even during an urgent breakdown, homeowners often have questions about what to do next and how to prepare for service. Here are some of the most common inquiries we receive about emergency air conditioning services.


If your AC isn’t functioning and you’ve called for help, turn off the system at both the thermostat and circuit breaker to avoid any further damage. Clear the area around your indoor and outdoor units so the technician can get to work without delay. These simple steps help keep your home safe and ensure that repairs can start as soon as the technician arrives.

While you can’t avoid every breakdown, regular maintenance can significantly reduce the chances of unexpected emergencies. Annual tune-ups allow technicians to identify worn-out parts, refrigerant leaks, and other minor issues before they escalate into costly problems. Preventive care is one of the best ways to steer clear of those stressful, middle-of-the-night breakdowns.

When it comes to your broken air conditioner, the answer isn’t one-size-fits-all. Sometimes, a simple repair can get your unit back to providing that much-needed cool air. But if your AC is older, inefficient, or constantly breaking down, a replacement could be the smarter long-term investment. Our skilled technicians provide honest evaluations and will help you weigh repair versus replacement so you can make the best choice for your home and budget.
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What To Expect Discover the National Difference
Satisfaction Guaranteed

Your comfort is our top priority, so we'll work tirelessly to guarantee you're 100% satisfied with our service.

Over 90 Years Experience

We have been providing HVAC services since 1931, so we have the experience to solve any of your problems.

Trained Technicians

Our team stays up to date with and continuously trains on all the latest HVAC technologies.

24/7 Emergency Service

HVAC systems choose the worst times to breakdown, so we're available nights, weekends, and holidays to help!

Upfront, Honest Pricing

We offer free estimates and price matching on all major equipment purchases. We’ll match any competitor's price as long as the equipment is an “apples-to-apples” comparison.

Convenient Financing

Costs should never be a barrier to receiving the services you need, so our team offers financing options, subject to approved credit.

Satisfaction Guaranteed

Your comfort is our top priority, so we'll work tirelessly to guarantee you're 100% satisfied with our service.

Over 90 Years Experience

We have been providing HVAC services since 1931, so we have the experience to solve any of your problems.

Trained Technicians

Our team stays up to date with and continuously trains on all the latest HVAC technologies.

24/7 Emergency Service

HVAC systems choose the worst times to breakdown, so we're available nights, weekends, and holidays to help!

Upfront, Honest Pricing

We offer free estimates and price matching on all major equipment purchases. We’ll match any competitor's price as long as the equipment is an “apples-to-apples” comparison.

Convenient Financing

Costs should never be a barrier to receiving the services you need, so our team offers financing options, subject to approved credit.

Our Reviews

What Our Clients Are Saying

Brandon of National Heating did an excellent job servicing my AC. He is very thorough, knowledgeable, and professional. He discovered that the low outside temperature sensor had not been set up on my Evolution Connex Control and took care of it. I appreciated his top-notch service!

Thomas S.

Great company that I trust. Very thorough. I just had my air conditioner annual service. I used Help in the past. They always tried to upsell every opportunity they had. National Heating and A/C is the real deal from booking the appointment to the actual work. Every person I have dealt with is kind, knowledgeable, and…

Paul M.

I can highly recommend National (previously Nelson Comfort) Heating and Air especially if Sanjay is the company representative. He was beyond good in that he completely cleaned the outside unit and was very thorough with the ac equipment inside the house. He even destroyed a wasp nest that I had not noticed. Five stars for this…

Susan S.

Excellent experience all around. Communication from the company was timely and complete. My service technician Chad Wilson was very knowledgeable, efficient and helpful. I had a lot of questions, having just moved into a house with systems that were unfamiliar to me (geothermal, radiant heat). Chad answered all my questions and spent extra time helping me…

Mary C.

My family has been using this company for years. They've always provided us with honest feedback on pricing for repairs and maintenance. This means a lot to a family on a tight budget. We never feel like we are charged for unnecessary items. All charges are explained and examined in great detail before being followed through.…

Megan K.