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.

Commercial HVAC Service in the Greater Cincinnati Area

As variable as the weather can be in the Greater Cincinnati area, it’s vital to have a heating and air conditioning solution that you can count on to keep your building comfortable year-round. The commercial HVAC experts at National Heating and Air Conditioning can help your business achieve these goals.

We offer complete installation, repair, and maintenance services to keep your commercial heating and cooling equipment operating at its peak. And when it’s time to have your systems replaced, we offer high-performance commercial HVAC equipment. Our company has been serving the Cincinnati area for over 90 years, and we feature skilled NATE-certified technicians, top-quality products and workmanship, and an unwavering commitment to customer service.

Call National today at (513) 621-4620 to schedule heating or cooling services in Cincinnati or the surrounding areas.

Commercial Air Conditioning Services

The Cincinnati area can get exceptionally hot, so you need a reliable air conditioning solution to keep your employees, customers, and guests cool at your property. Fortunately, National is here to help with a full range of commercial AC services for businesses throughout the greater Cincinnati area.

Our air conditioning services include:

  • Commercial AC repair: When something goes wrong with your air conditioner, trust the NATE-certified technicians at National for fast and reliable repairs. We can fix all types of issues with your AC, including insufficient airflow, loud noises, refrigerant leaks, and more.
  • Commercial AC installation & replacement: When your AC is struggling to keep your business cool, National can help with a top-quality replacement. A new air conditioner installed by our team will keep you comfortable no matter how hot it gets outside.
  • Commercial AC maintenance: Your commercial AC unit plays a large role in the comfort and productivity of your business, so ensure it’s well taken care of by scheduling a tune-up with the National team.

Commercial Boiler Services

Energy-efficient gas boilers have 90% annual fuel utilization efficiency (AFUE) ratings (oil boilers have 87%), higher than ENERGY STAR® ® standards, making them a top choice for Cincinnati-area businesses and industries. Commercial boilers should always be serviced, repaired, or replaced by NATE-certified commercial heating professionals.

For commercial boiler solutions in the greater Cincinnati area, call (513) 621-4620 to schedule an appointment.

Our Other Heating Services

Cincinnati is no stranger to freezing temperatures, so your commercial heater has to work hard to keep your business warm and cozy. All this wear and tear can lead to issues, so turn to National when you need a trusted commercial heating team. We’ll make sure your furnace or boiler is in top-notch shape so that your business operations don’t get disrupted.

Our other heating services include:

  • Commercial furnace services: Furnaces are a reliable heating option for businesses in Cincinnati, but even well-maintained furnaces can have problems. National has you covered with commercial furnace repair, replacement, and comprehensive maintenance services when something goes wrong.
  • Commercial heat pump services: Deciding whether to repair or replace your commercial heat pump is difficult. If your unit is 10+ years old or has already had several repairs, replacing it with an energy-efficient system is a good idea. You’ll soon see lower monthly heating bills, and property value will increase with a new commercial heat pump.

Call National today at (513) 621-4620 to schedule commercial heating services in the Cincinnati area.

Why Choose National?

At National Heating and Air Conditioning, customer service is our top priority, and we will work hard to ensure you are completely satisfied with our work. By choosing our team for your commercial HVAC services, your company can enjoy these benefits:

  • Over 90 years of professional HVAC experience
  • Top-quality products and workmanship
  • Skilled, NATE-certified technicians
  • Frequent training on the latest techniques and technologies

Call National at (513) 621-4620 or contact us online to schedule commercial HVAC services anywhere in the Greater Cincinnati area.

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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.