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.

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Our Service Areas

Maintaining a comfortable living or work space in the Cincinnati area can prove quite challenging. However, when you turn to the professionals at National Heating and Air Conditioning you can rest easy! Our team of experienced HVAC contractors offers up exemplary service and superior comfort solutions. Whether you’re looking for a heating, cooling, or geothermal heat pump company in the Greater Cincinnati area, we have you covered.

Why Choose Us for Heating & Air Conditioning Services?

For over 90 years the team at National Heating and Air Conditioning has been proud to serve the comfort needs of both home and business owners. We strive to set our team apart, not only for our sake, but for the sake of our clients. Every service we offer or technology we pursue is something we’ve put the time in to master so that we can provide our clients with unparalleled quality that they can depend on.

When you call on National for your HVAC needs, you can expect:

  • A superior process completely customized to your unique situation, budget, and needs
  • Experienced, knowledgeable, friendly, and extensively trained HVAC contractors who will treat you like family
  • A consultative approach that puts you and your preferences at the forefront
  • Cutting-edge technology aimed at saving you money while improving comfort
  • Robust financing options that will ease any financial burden. You should never have to make the choice between physical and financial comfort
  • Our unique “100% Right, or 100% Free” guarantee!

If you need heating, cooling, or heat pump services in Cincinnati, Ohio call us today or contact our team online for a consultation! 

Contact Us Today

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Deals & Financing
50% OFF A/C Air conditioner More info Request Service
Only $131 Early Bird AC Tune-Up More info Request Service
$400 OFF Air Scrubber More info Request Service
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Our Services
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Our Services

HEATING
COOLING
Commercial Hvac
Air Quality
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.

learn more
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.