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.

Air Conditioning & Heating in Sharonville, OH

Here’s a bone-chilling thought: winter in Sharonville without a heater! Another unpleasant thought: sitting on a sticky, hot couch in the middle of the summer. Thank goodness for HVAC systems, and for timely maintenance, installation, and repair services!

At National Heating and Air Conditioning, we provide high-quality heating and cooling services to residents in Sharonville to keep homes feeling welcoming and comfortable all year long. Whether you need a thermostat inspection or hope to install a new air conditioner or heating system, we do it all so you can enjoy your home and stress less.

See why your Sharonville neighbors trust our team for all their HVAC services. No matter your heating or cooling needs, National Heating and Air Conditioning is a quick call away!

Reliable Heating Services

This winter season, give the gift of having a healthy, warm, and cozy home. Whether it’s snowing or pouring cold rain, your home can feel like a relaxing oasis away from Mother Nature’s grasp!

Our HVAC technicians are highly trained in servicing boilers, furnaces, heat pumps, and a variety of other heating systems with the goals of improving the heating quality of your home and its energy efficiency. As your local HVAC company in Sharonville, we offer the following heating services:

Expert Heating Repair

Is your furnace operating as it should be? If not, it’s best to take care of heating and cooling problems sooner rather than later, for cost, safety, and convenience. Here are a few of the most common heating repair problems we get called out for:

  • Strange smells: Unless you’re certain it isn’t gas, this one demands caution and an immediate call to professionals (right after you step outside and call the gas company first).
  • Strange sounds: If your heating is making unusual sounds, whatever they may be, it’s almost always indicative of a problem that’s going to get worse.  
  • Constant cycling or running: As with an AC, any heating system that starts running all the time or constantly cycling on and off has something wrong with it (or the thermostat controlling it).
  • Blows cool air: If your heat isn’t pushing heat, it clearly needs professional attention — it’s just a fan at that point!
  • No airflow: If you’re getting heat at the unit, but it’s not coming through your ducts, this can be because of obstructions, major duct leaks, or a dead motor.
  • Energy bills going up for no reason: If the energy bills are going up without the weather getting colder, it’s time to call our team for repair.  
  • Pilot light problems: Your pilot light shouldn’t change, flicker with impurities, or go out constantly. If it does, call us!
  • Poor air quality: It’s a bad sign when your heating system starts pushing unclean air, even if it’s just a mild difference in air quality.

Air Conditioning Services

Summertime in Sharonville is never long enough — the outdoor games, sports, and time spent with family can be such a thrill! But when it’s time to come in for a breath of cool, relaxing air conditioning, you’re going to need an HVAC system you can rely on.

At National Heating and Air Conditioning, our qualified HVAC experts will work with you to maintain or repair your existing air conditioning unit, or to install a new air conditioner. Whatever your needs may be, we have decades of experience in the HVAC industry to provide you with the following air conditioning services:

Top-Rated AC Repair

Is your air conditioner failing to cool your home, behaving strangely, or driving up your bills? It’s important to figure out quickly whether you need AC repair because the longer you wait, the more likely it is that your problem will worsen. Here are a few symptoms of an AC in distress:

  • The air coming from your AC isn’t cold: If your air conditioner isn’t blowing cold, you need repairs — even if it starts working again later (likely when frozen evaporator coils thaw).
  • The air isn’t blowing at all: This might be a clogged filter, easily fixed with a replacement, but otherwise could point to duct problems or a dead fan.  
  • Increased energy bills: If your power bills go up without you using more air conditioning, it’s time to call a pro.
  • Constant running or constant cycling: Both of these behaviors can point to a variety of problems, like thermostat issues, a wrongly sized unit, or other component failures.
  • Leaking refrigerant or condensation: Your refrigerant should stay inside your air conditioner, and condensation shouldn’t be forming and dripping where it can cause problems.
  • High humidity: Your air conditioner should be reducing humidity naturally as it operates; if your home feels humid despite this, it might be a sign of something wrong.

Connected Home Services

This day and age, almost everything can be automated. But how much of it can actually save you money, energy, and time? At National Heating and Air Conditioning, we believe home automation services can help you take a load off by being able to manage and monitor your home energy systems all in one place. Our systems not only monitor your home, but offer a range of automation services:

  • Energy management
  • Lighting control
  • Home security
  • Vehicle detection
  • Total home audio
  • Irrigation
  • Access control
  • Home theater
  • Pool & spa
  • Surveillance cameras
  • Internet access & control

Why Choose National Heating and Air Conditioning?

National Heating and Air Conditioning has been a premier heating and cooling company serving Sharonville for over 80 years. We believe in quality results, backed by professional care and attention to detail. When you need heating or air conditioning repair, maintenance, or installation services, you can call us for timely assistance and reliable solutions.

Whether you’re ready to schedule service, need a free second opinion on an estimate, or are looking for same-day HVAC repair, National Heating and Air Conditioning can help.

Contact us online or call us today for reliable HVAC services in Sharonville, Ohio.

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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.