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.

AC Repair & Replacement in Cincinnati, OH

Central air conditioning unit in a residential backyard

Without dependable cooling systems, households in Cincinnati risk poor indoor air quality and the potential for overheating. These issues can be especially harmful to individuals with respiratory conditions or allergies, as excessive heat and airborne particles can exacerbate health concerns. National Heating and Air Conditioning is here to take care of all your AC needs to keep you cool and comfortable.

Don’t suffer in the heat. Contact National today for expert AC repair and replacement services in Cincinnati or Blue Ash.

AC Installation & Replacement Services

Choosing a qualified professional for air conditioning replacement is essential. At National, our experienced team will ensure your AC upgrade is done perfectly. An incorrectly sized unit may struggle to maintain consistent temperatures or waste energy. Our skilled installers assess your residence’s unique needs, ensuring the installation of a system perfectly tailored to you. Proper placement further enhances the performance and longevity of the unit.

Air Conditioning Systems We Install

When installing a new air conditioner, the expertise of a knowledgeable installer is vital. Our team is well-versed in multiple system types, ensuring precision installation for optimal results. We work with:

  • Packaged units: Ideal for smaller floorplans or commercial spaces, these all-in-one systems combine heating and cooling capabilities for convenience and efficiency.
  • Central or forced air systems: These systems offer consistent temperatures throughout your home and are perfect for properties with existing ductwork.
  • Ductless mini-splits: Flexible and energy-efficient, these systems are suitable for houses without ducts or for cooling specific zones independently.
  • Mechanical ventilation: Our balanced ventilation systems use a fan to draw in air, and another fan to expel an equal amount of air.

Same-Day Air Conditioning Repairs in Cincinnati

Ignoring minor issues with your air conditioning system can lead to more significant problems down the road. We offer prompt air conditioning repairs to address concerns before they escalate. For emergencies or routine repairs, our 24/7 service ensures you’re never left without cooling. Signs that your AC may need repairs include:

  • Weak airflow: Insufficient cooling may indicate blockages or mechanical issues.
  • Unusual noises: Banging, rattling, or humming sounds can signal internal damage.
  • Frequent cycling: If your unit is turning on and off too often, it may require professional attention.
  • Leaking water or refrigerant: Moisture around the unit may point to clogged drains or leaks.

Dependable AC Maintenance

Routine air conditioning maintenance is essential to counteract the wear and tear that air conditioners endure daily. Scheduling yearly maintenance helps optimize your system’s efficiency and prevent breakdowns. Benefits of regular upkeep include:

  • Improved energy efficiency
  • Enhanced cooling performance
  • Extended system lifespan
  • Early detection of potential problems
  • Improved indoor air quality

We recommend scheduling maintenance annually, ideally in spring before peak usage begins.

Why Choose Us?

National has been a trusted name in the Greater Cincinnati area since our founding in 1931. With over 90 years of experience, we have a proven track record of excellence. Our NATE-certified professionals service all brands, ensuring high-quality solutions for every customer. We offer free estimates on replacements, 24/7 emergency services, and a 100% satisfaction guarantee. Our customers also benefit from seasonal coupons and specials, making top-tier service more affordable.

Contact National Heating and Air Conditioning today to experience expert care and reliable solutions for your home. Stay cool all summer long!

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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.