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.

Trusted Furnace Repair Service in Cincinnati & Blue Ash

Trusted Furnace Repair Service in Cincinnati & Blue Ash

HVAC technician removing panel to change an air filter

HVAC technician removing panel to change an air filter

In our area of Ohio, average winter temperatures go as low as 23 degrees. That’s why local homes and businesses demand professional, skilled furnace service they can trust.

Since 1931, National Heating and Air Conditioning has met that demand, exceeding customer expectations with professional-grade comfort services. Whether you need a simple repair or emergency furnace services, our specialists provide prompt, effective results.

Call or contact us online to get prompt and reliable furnace repairs in the greater Cincinnati area today.

9 Signs You Need Furnace Repairs

Furnaces can fail without warning, but often there are signs of a looming furnace problem. If you catch furnace malfunctions early, you might be able to avoid major furnace repair costs or an expensive furnace replacement.

Here are some signs you may need to call for furnace repair:

  • Intermittent shutdowns or startup problems
  • Poor heat output or uneven temperatures
  • Reduced or restricted airflow
  • Frequent on and off-cycling
  • Fan runs constantly or not at all
  • Breakers that trip often or electrical problems
  • Grinding, tapping, screeching, or other strange noises
  • Musty, sour, or burning plastic odors
  • Alerts from carbon monoxide detectors

Our Top-Rated Furnace Repair Services

In the Cincinnati area, temperatures have been known to drop below 10 degrees at times. If temperatures that low hit and you can’t count on your heating system, the results can be stressful, disruptive, and potentially dangerous.

Partnering with a qualified service provider like National gives you the advantage of professional experience and emergency services you can trust. Count on our furnace repair professionals for superior workmanship, outstanding customer service, and dependable results. We handle gas furnaces as well as electric furnaces. We’re also available 24/7 for those times when your safety would be compromised!

6 Common Furnace Issues

The furnace experts at National regularly see a number of problems common to the Cincinnati area. These include:

  • Thermostats: If your unit won’t activate or maintain a consistent temperature, your thermostat may need service.
  • Flame sensors: Sometimes these components need cleaning or replacement for improved performance.
  • Ignitors: If the ignitor in your furnace is having problems, the system won’t produce heat.
  • Pilot lights: This key furnace component can have any number of issues. We know how to identify and resolve them all quickly and efficiently.
  • Blower motors: These essential components move air through the heating unit. If there’s a problem here, there will be no circulation.
  • Heat exchangers: Tubes or coils in heat exchangers transfer heat from within the furnace to warm the air. This is the primary furnace part that heats your home.

Why Choose National?

National Heating and Air Conditioning has been the HVAC leader throughout greater Cincinnati for over 90 years. Our NATE-certified technicians service all brands and offer a 100% customer satisfaction guarantee. We also offer free estimates on replacements, coupons, and specials.

The National Difference sets us apart from our competitors. We approach each job with your specific goals in mind, using a collection of well-developed processes to get the job done well. In addition, you’ll get to know your assigned technicians, their backgrounds, and their credentials as part of your appointment communications.

Contact the professionals at National Heating and Air Conditioning to request furnace repair services in and around Cincinnati and Blue Ash.

Frequently Asked Questions

A short-cycling furnace is often the result of a dirty filter. Your furnace’s filter needs to be changed every few months to avoid becoming clogged. Short-cycling can also be caused by thermostat issues or a poorly sized furnace.

Wondering what furnace repair costs? The answer depends on the scope of the repairs, the parts required, and how long the job takes to complete, as well as the specific make and model of your furnace.

According to HomeAdvisor, the national average furnace repair cost is $287, with a typical range of $131 to $453. On the low end, replacing a thermostat may cost a few hundred dollars or less, while replacing a blower motor can be several hundred dollars or more. Installing a new heat exchanger could be well over a thousand if one is still available for your system.

Our experts at National Heating & Air Conditioning can inspect your furnace and help you choose the best course of action for your needs and budget. We will explain all your repair options, as well as alternatives, like system replacements, and give you honest advice that will help you make the best decision possible.

The most common reason that a furnace isn’t working (or isn’t running effectively) is due to lack of maintenance. Routine preventative maintenance is the single most important investment in the overall efficiency and service life of your furnace.

While DIY maintenance shouldn’t replace your annual tune-up, there are some things you can do to keep your furnace in top shape. Dusting and cleaning your burners will allow your furnace to operate more efficiently, as well as keeping the areas around your furnace clean and clear.

When forced air begins blowing through your furnace’s ductwork, it’s normal to hear the sound of your ducts filling up. However, if you hear strange noises like whistling or loud popping, it could indicate insufficiency in your ducts. Your local HVAC professional will be able to determine the exact cause and provide quick solutions.

That depends on the system. Multiply the age of your system by the cost of needed repairs. When that’s more than $5,000, replacement is a better choice. If the system is five years old or less, and it performs well despite a needed repair, you should be fine repairing it.

Sometimes a yellow pilot light might indicate a possible carbon monoxide (CO) issue, but not always. If it’s left unresolved, a CO issue could develop. Check out our blog for more information about CO risks.

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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.