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.

Heating & Cooling Company in Cincinnati, OH

When you need reliable HVAC services, AC repair, or furnace repair in Cincinnati, trust the experienced team at National Heating and Air Conditioning. As an HVAC company with over 90 years of history serving the community, we’ve built a reputation for dependable service and unmatched expertise. Hundreds of Cincinnati homeowners and businesses rely on us for their heating and cooling needs, and we’re committed to earning your trust, too. Whether it’s keeping your AC running smoothly in the summer or ensuring your furnace is ready for winter, National Heating and Air Conditioning is here to help.

Don’t put up with an inefficient home any longer. Call National for professional heating and air conditioning services in Cincinnati, OH!

Heating Services in Cincinnati

Proper care of your heating system ensures it takes care of you when you need it most. As your trusted heating contractor, we specialize in services like furnace repair, furnace installation, and heat pump repairs to keep your home warm and comfortable. Regular maintenance, such as annual tune-ups, is essential for safety, efficiency, and longevity — especially for systems like electric furnaces.

A tune-up not only ensures your furnace operates safely by detecting potential carbon monoxide leaks but also helps prevent unexpected breakdowns during the colder months. By addressing minor issues early, you can avoid costly repairs and keep your system running efficiently, saving money on energy bills. Trust us to provide the expert care your heating system needs to stay reliable and safe throughout the winter.

Our heating services include:

Cincinnati Air Conditioning Services

As complex as you think your furnace is, it’s nothing compared to your air conditioner. In fact, next to your vehicle, it’s probably the most complex piece of machinery you own. As such, it needs regular maintenance. During an annual tune-up, we start by ridding your system of built-up dirt and grime, both of which undercut its effectiveness. We also:

  • Check the thermostat settings and controls
  • Tighten the electrical connections
  • Measure the voltage
  • Lubricate the moving parts
  • Check the condensate drain
  • Check the refrigerant level

It’s a tall order, but then, at National, we always aim high. Our skilled technicians here in Cincinnati are trained for the following air conditioning services:

Connected Home Services

With so many systems at play in your home, having them controlled and connected can be quite useful. Our systems not only monitor your home but also offer solutions for security and lighting control. We offer a variety of home automation services in Cincinnati, including:

  • Energy management
  • Lighting control
  • Home security
  • Vehicle detection
  • Total home audio
  • Irrigation
  • Access control
  • Home theater
  • Pool & spa
  • Surveillance cameras
  • Internet access & control

Choose National Heating & Air Conditioning in Cincinnati

We see the full range of seasons in Cincinnati, which means that it’s vital to have reliable HVAC services that will keep you comfortable no matter the season. National Heating and Air Conditioning has been in business for over 90 years — we have what it takes to keep your home safe and your family happy.

Contact us online or call us to schedule an appointment with a reliable HVAC company in Cincinnati, Ohio.

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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.