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.

Top Heating & AC Services in Covington, KY

When the seasons change in Covington, KY, having a dependable heating and cooling system is not just about comfort; it’s about peace of mind. At National Heating & Air Conditioning, we provide comprehensive HVAC services tailored to the needs of Northern Kentucky homeowners and businesses. Whether you need installation, repair, or maintenance, our skilled team is here to ensure your home or business stays comfortable year-round.

Contact us online today to schedule your HVAC service and experience the difference our expertise can make!

The National team lined up in front of their buidling

Full-Service Heating Solutions

A reliable heating system is essential during Covington’s cold winters. Our technicians specialize in a full range of heating services, including:

  • Furnaces: From new installations to fast repairs, we keep your furnace operating efficiently and safely.
  • Boilers: Our team is experienced in servicing both residential and commercial boiler systems, ensuring consistent and reliable heating.
  • Geothermal services: Take advantage of renewable energy with our geothermal heating solutions, designed to reduce long-term utility costs.
  • Heat pumps: We install, repair, and maintain energy-efficient heat pumps that provide both heating and cooling for year-round comfort.

Comprehensive Cooling Services

Summers in Northern Kentucky can be humid and hot, which is why we offer complete cooling solutions:

  • AC installation: We provide professional installation for high-efficiency central air systems from trusted brands.
  • Packaged units: Ideal for homes or businesses with limited space, packaged units combine heating and cooling in one compact system.
  • Mechanical ventilation: Proper airflow and ventilation are crucial to indoor comfort and air quality, and our team offers effective solutions.
  • Ductless AC: For flexible cooling without the need for ductwork, we install and service ductless mini-split systems.

Preventive HVAC Maintenance Plans

Regular maintenance is the key to maximizing the lifespan of your heating and cooling systems. Our preventive maintenance programs include scheduled inspections, cleanings, and tune-ups to reduce breakdowns and increase efficiency.

Emergency Heating & Cooling Services

HVAC issues rarely happen at a convenient time. That’s why we provide 24/7 emergency heating and cooling services to restore your comfort quickly. From furnace breakdowns to AC failures, our team responds fast to keep your home or business running smoothly.

Why Choose Our Team

Choosing the right HVAC contractor matters. At National Heating & Air Conditioning, we’re proud to offer:

We’ve built a reputation across Northern Kentucky for dependable service and lasting solutions.

Serving Covington and Nearby Areas

As a locally trusted company, we understand the unique weather challenges homeowners face in Covington and the surrounding region. From humid summers to icy winters, our team is equipped to handle it all. We proudly serve Covington and all areas of Northern Kentucky with expert HVAC solutions.

Schedule Your HVAC Service Today

Whether you need installation, maintenance, or an emergency repair, National Heating & Air Conditioning is your go-to HVAC team in Covington, KY.

Don’t wait until your system fails — schedule service today and enjoy reliable comfort throughout the year!

Frequently Asked Questions


We provide complete heating and cooling solutions, including furnace and AC installation, repair, maintenance, ductless systems, geothermal heating, ventilation services, and 24/7 emergency repairs.

We recommend professional maintenance at least twice a year: once before the cooling season and once before the heating season. This ensures maximum efficiency and prevents unexpected breakdowns.

Professional repairs ensure your system is fixed safely and correctly the first time. DIY attempts can lead to bigger problems, higher costs, or even safety hazards.
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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.