24/7 Emergency Service

Top Heating & Air Conditioning in Fairfield, OH

Air conditioner maintenance being performedIs your home or business ready to handle the temperature swings throughout the year? Make sure you’re ready with help from National Heating and Air Conditioning.

Our team works hard to deliver the best possible heating and cooling services. We use the best tools of the trade and time-tested techniques to get your HVAC system running right. Trust our highly reviewed local company to handle all your heating and cooling needs.

Work with the company that’s served your neighbors for over 90 years. Call or contact us online to request an appointment today!

Air Conditioning Repair & Replacement

Staying cool in Fairfield can be a tall task during the summer. Don’t go days without working AC when we get spans of temps in the 90s! Whether you’re a homeowner or a business owner, make sure you have proper cooling for your property. Look to National for comprehensive air conditioning services, including:

  • AC repair: Our professionals can discuss your needs, inspect your system, and perform the necessary repairs to get your AC working like new.
  • AC replacement: We can remove your old air conditioner and install a brand-new, energy-efficient model designed to last 10+ years. You can even get a free quote!
  • AC maintenance: If you want to get the most out of your air conditioning, get regular maintenance done by an expert.

Heating in Fairfield

Winter can freeze us up in the Fairfield area. Sub-freezing temperatures are common for weeks at a time. Ensuring you have proper heating for your home or business is essential. That’s where we come in.

National provides complete heating service in Fairfield and beyond. We service all brands of boilers, furnaces, heat pumps, and geothermal systems.

Whether your property needs a basic repair, a preventive maintenance visit, or a total system replacement, our team can handle the job.

Indoor Air Quality Solutions

Clean air should be a high priority for your property. If you notice a lot of dust and allergens in your air, consider investing in indoor air quality systems. We install UV lights, air purifiers, whole-home dehumidifiers, and more. With the right system, you can create a healthier environment for your family or employees.

Breathe easy knowing that your indoor air quality is at its best with help from National.

Why Choose Us?

For the past 90+ years, National has built a reputation as a reliable, trustworthy, and expectational choice for HVAC services in the Fairfield region. Our NATE-certified technicians provide same-day and emergency HVAC services. You can rely on us for upfront pricing, financing options, special deals, and proper system service.

Make sure your entire HVAC system is in top shape — contact National today to schedule HVAC services in Fairfield.

FAQs

While most heating units can last 10 to 15 years or sometimes longer, boilers often last up to 20 years. Proper maintenance can also lengthen the lifespan of any heating system.

Package units are often the best systems for heating and cooling a business. They combine heat and AC into one large, reliable unit.

 

 

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.