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Our History

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With over 90 years of experience in the home heating and cooling business, National Heating and Air Conditioning is one of the Greater Cincinnati region’s most experienced and trusted HVAC contractors.

National Heating and Air Conditioning was founded by Cincinnati entrepreneur, Scott Sublette, in 1930. One of Scott’s first employees was a young man named Sheldon Braun, Sr.  Sheldon learned the business, worked his way up the ranks, and eventually ran the company for Scott Sublette for many years. Mr. Sublette sold the business to Sheldon shortly before passing away in the early 1960s.

National Heating and Air Conditioning has always been a family-oriented business and carries on strong family traditions. In fact, Shelton Braun, Sr. named his son Scott after his beloved boss and mentor.  Today, Scott Braun is the sole owner of the company. As the business developed in the Braun family  the tradition continued.

Growing up in the business, Scott was mentored by a long-time employee Justin Korte and later went on to name his own son Justin after Mr. Korte. A traditional HVAC company known for its strong ethics and 100% customer satisfaction, National Heating and Air Conditioning has continued to be on the cutting edge of the industry throughout its existence. Having a strong background in heating and experts on boiler systems, they became one of the first companies to offer full air conditioning services in the Greater Cincinnati market, and are one of the first companies to offer a holistic diagnosis of homes and business looking beyond just the HVAC system, most recently offering full home and building automation.

While rooted in tradition, National Heating and Air Conditioning remains on the cutting edge of the home heating and cooling industry, offering customers the latest in building science-based solutions for maximum home comfort and energy efficiency.

What To Expect

Discover the 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!

Free
Estimates

With our free estimates on replacements, you can take the stress out of finding an HVAC contractor.

Free
Financing

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

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!

Free
Estimates

With our free estimates on replacements, you can take the stress out of finding an HVAC contractor.

Free
Financing

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

What Our Clients Are Saying

Our Neighbors Are Saying

Great service. Turned out it was only a bad fuse on my new unit, they instilled a few months ago. Very friendly guy and took the time to show me what he was doing, when…

Rob K.

I've been doing business with National for 30+ years. Their technicians are very knowledgeable and professional. The company is top notch.

Junior E.

Gina was a pleasure to work with and was very helpful in recommend specifications that met our application. The pricing was very competitive, and both the quote and scheduled install date were lightning fast!

Robert T.

This was just our semi-annual preventative maintenance and it was done on schedule. Our technician was courteous, friendly and knowledgeable. He wore fresh shoe covers into our house to protect our carpets and was wearing…

Field B.

Chad was an awesome service tech. Did an amazing job. Kept me informed of everything he was doing. Showed me a part that was bad and my furnace that had probably contributed to my electric…

Gina W.

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