24/7 Emergency Service

Reliable HVAC Company in Mason, OH

Repair of a gas boiler, setting up and servicing gas boiler by repairmanSometimes our AC and heating systems have problems at the worst possible times. When you need quick and efficient AC and heating services in Mason, OH, look to National Heating & Air Conditioning.

Our NATE-certified technicians can provide 24/7 emergency service for your residential or commercial heating or cooling system. We offer free estimates on all replacements and a 100% satisfaction guarantee. Check out our reviews to see how you can experience the National difference.

To schedule AC and heating services in Mason, OH, call National Heating & Air Conditioning at (513) 621-4620.

Air Conditioning

When summer weather turns hot, your Mason home or business needs reliable air conditioning to stay cool. Whether you have central air or ductless mini-splits, National can handle repairs and maintenance, including commercial AC repair.

  • AC repair: When your system isn’t cooling like it should, we can investigate and repair AC system problems quickly.
  • AC replacement: Tired of making frequent repairs to your old AC system? Let National replace your AC unit with a newer, more efficient system.
  • AC maintenance: Your AC unit needs regular maintenance to work properly when you need it most. Schedule regular AC tune-ups for consistent cooling.

Don’t let the summer heat get you down. Request AC repairs or maintenance by calling National at (513) 621-4620.

Heating

Boilers are great heating options for your home or business, but they need repairs like anything else. National can help keep your boiler in top shape. Regular boiler maintenance is essential for keeping your system running at all times. We can also perform boiler repairs or replacements if your boiler is getting old. We can service furnaces and heat pumps and perform commercial boiler repairs.

Indoor Air Quality

Your indoor air quality needs to be great to avoid consistent respiratory issues like asthma and allergies. At National, we believe that UV air treatment, which treats mold, fungus, viruses, and bacteria, is the way to go. Otherwise, we also recommend an air purifier to help keep your breathing air clean.

Why Choose Us?

At National Heating and Air Conditioning, we believe in quality workmanship and outstanding customer service for residential and commercial clients. We offer financing, coupons, and specials for our customers to lighten the load of heating and air conditioning repairs and replacements.

Schedule an appointment in Mason by calling (513) 621-4620.

FAQs

The rule of thumb for heating or AC servicing is twice a year — once at the start of the cooling season and once at the start of the heating season. This schedule ensures that your systems will be in top shape to handle the weather changes.

Regular preventative maintenance is the best way to extend your boiler or AC unit’s life span. Preventative maintenance means you’re catching potential problems before they get worse. Changing filters (if needed) is a great option, and reducing usage when possible can help extend your unit’s life.

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.

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!

Free
Estimates

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

Convenient
Financing

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

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.