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 Heating Services in Fairfield, Ohio

Your Local Commercial HVAC Contractor Since 1931

When it comes to keeping your business comfortable, count on the commercial HVAC experts at National Heating & Air Conditioning. Our company has nearly a century of experience serving the heating needs of Fairfield businesses and commercial properties. We’ll ensure your business is equipped with high-quality heating systems so that your employees, customers, and guests are warm and cozy all winter long.

When you need commercial HVAC services in Fairfield, go with National! Call (513) 621-4620 today to schedule heating or AC services.

Heating Systems We Serve

Businesses throughout Fairfield depend on a variety of heating systems to keep warm. At National, our NATE-certified technicians are highly trained in order to work on a wide range of heating systems, including:

  • Commercial heat pumps
  • Commercial boilers
  • Commercial furnaces
  • Commercial packaged units
  • And more

24/7 Commercial Heating Repair

With the freezing temperatures of an Ohio winter, you need your heater to perform reliably. If something is amiss, you can count on National for fast and efficient repairs. We’ll get your furnace, boiler, or heat pump back in excellent shape in no time.

If you notice any of the following, call our team for repairs:

  • Uneven temperatures
  • Insufficient heating
  • Loud sounds
  • Burning smells
  • Inaccurate thermostat readings
  • Unusually high energy bills

If you’re dealing with urgent heating issues, our team is available 24/7 for emergency repairs!

Call National at (513) 621-4620 to schedule commercial furnace or boiler repairs in Fairfield.

Commercial Heater Installation & Replacement

Boiler and pipes of the heating system.

Commercial HVAC equipment is far more complex than residential units, so you need a heating contractor that’s well-versed in these systems. At National, our NATE-certified technicians are all highly trained and experienced in working with commercial heaters. We’ll ensure your new furnace or boiler is properly sized and installed so that your business has a reliable heat source.

Keep your Fairfield business warm with a new heater from National! Request a free estimate for a new heating system installation by calling (513) 621-4620 today.

Heating Maintenance for Fairfield Businesses

Your heater is a large investment, so you want it to last for years to come. Ensure your furnace, boiler, or heat pump is properly taken care of by scheduling heating tune-ups with the National team. Our heating maintenance services are designed to help you get the most out of your heating system. We’ll thoroughly inspect, clean, and tune your system to have it working in the best condition possible.

Benefits of our heating tune-ups include:

  • Longer service life
  • Lower risk of repairs
  • Improved energy efficiency
  • Savings on monthly energy costs
  • And more

Keep your furnace or boiler in the best shape possible by scheduling a tune-up with the National team! Call (513) 621-4620 to get started.

Why Choose National?

Since 1931, National Heating & Air Conditioning has been a top commercial HVAC company in Fairfield and the surrounding areas. We’ve earned a reputation for service excellence, thanks to our unwavering commitment to customer satisfaction. When you choose us as your commercial HVAC contractor, you’ll benefit from our free estimates on installations, NATE-certified technicians, 24/7 emergency service, and 100% satisfaction guarantee.

Call National at (513) 621-4620 or contact us online to schedule commercial heating services in Fairfield, OH.

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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.