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.

Dependable Heating and Cooling Services in Miamitown, OH

Technician working on ductless mini-split wall unit

National Heating & Air Conditioning has been keeping Cincinnati homes comfortable since 1931. With over 90 years of experience, we know what it takes to provide reliable heating, cooling, and indoor air quality services. Whether your furnace won’t start on a cold morning, your AC is struggling in the summer heat, or you’re looking to improve your home’s air quality, we offer dependable HVAC services in Miamitown with upfront pricing and expert workmanship. Give our team a call at (513) 621-4620 or connect with us online to schedule your next appointment!

Professional Miamitown Heating Services

Miamitown winters can put your heating system to the test, and when temperatures drop, you need a system that works. Whether it’s uneven heating, unexplained spikes in your energy bill, or a system that just won’t turn on, our technicians will diagnose the issue and get your heat back on fast. National’s heating services in Miamitown focus on fixing the problem right the first time, so you can stay warm without worry.

Heating Repairs Done Right

If your heating system isn’t keeping your home consistently warm, it may be time for professional repair. Common signs you need Miamitown furnace repair include:

  • Uneven heating – Some rooms feel too warm while others remain cold.
  • Strange noises – Banging, rattling, or whistling sounds can signal a mechanical issue.
  • Short cycling – Your system turns on and off too frequently, preventing efficient heating.
  • Higher energy bills – An unexplained increase in costs could mean your system is working harder than it should.

We don’t just fix the symptoms—we get to the root of the problem so you won’t have to deal with the same issue again. With experience in servicing all brands and models, we ensure expert care for any heating system in your home.

Heating Installation & Replacement

Upgrading your heating system can improve overall performance and reduce monthly costs. If your unit is outdated or the repair man is on speed dial, it’s time to consider a new heating system installation in Miamitown. National offers:

  • High-Efficiency Furnaces – Reliable and energy-saving heating solutions that distribute even warmth throughout your home.
  • Heat Pumps – A versatile system that provides both heating and cooling while reducing energy consumption.
  • Boilers – Steady, radiant heat for consistent comfort with minimal noise.
  • Ductless Mini-Splits – Zoned heating that allows customized temperature control in different areas of your home.
  • Geothermal Systems – A sustainable, cost-effective heating alternative that utilizes energy from the earth.

Not sure which system is best? Our team will guide you through the options and recommend the best fit for your home, energy efficiency goals, and budget.

Preventative Heating Maintenance

Routine heating system maintenance in Miamitown is key to avoiding breakdowns and keeping your heating system running smoothly. Our maintenance services include:

  • Cleaning and inspecting burners and heat exchangers for safe operation.
  • Checking for carbon monoxide leaks to protect your household from this invisible danger.
  • Testing system performance, airflow, and thermostat calibration.
  • Lubricating moving parts to prevent wear and extend the life of your system.

With regular tune-ups, your heating system will operate more efficiently, keeping your home warm and your energy costs in check.

Cooling Services in Miamitown You Can Trust

Ohio summers can be brutal, and when the heat and humidity set in, you need an air conditioner that works without fail. If your AC isn’t cooling like it used to or struggling with airflow, we’re here to help. Whether it’s a repair, a system upgrade, or routine maintenance, our air conditioning services in Miamitown will ensure your AC runs efficiently so your home stays cool and comfortable when you need it most.

Air Conditioning Repair

If your air conditioner isn’t cooling properly, it may be struggling with weak airflow, blowing warm air, making strange noises, or turning on and off too often. These problems can make your home uncomfortable and cause abnormal wear and tear on your system. With Miamitown air conditioning repair from National Heating & Air Conditioning, our technicians pinpoint the issue and provide the right fix to restore your AC’s efficiency.

AC Installation & Replacement in Miamitown

An outdated or unreliable AC system can leave you uncomfortable and stuck with high energy bills. If your cooling system is struggling, replacing it with a modern, energy-efficient unit can make a big difference. We install:

  • Central Air Conditioning – Even, whole-home cooling that ensures consistent temperatures across all rooms.
  • Ductless Mini-Splits – A great solution for homes without ductwork or those needing individual room temperature control.
  • Heat Pumps – An energy-efficient way to both heat and cool your home, reducing reliance on separate systems.

AC Maintenance for Energy Efficiency

Regular AC maintenance helps prevent unexpected breakdowns and keeps your system running efficiently. Our technicians thoroughly clean coils and filters to improve airflow, check refrigerant levels to maintain cooling performance, inspect components like capacitors and fans for wear, and test the thermostat to ensure accuracy. Routine maintenance in Miamitown lowers energy bills, extends your system’s lifespan, and reduces the risk of costly repairs.

Miamitown Indoor Air Quality Solutions

Clean indoor air is essential for a healthy home. Poor air quality can lead to allergies, respiratory issues, and general discomfort. Our air quality solutions ensure your home’s air is fresh, clean, and free from harmful pollutants.

  • Air Purifiers – Removes dust, allergens, and airborne contaminants to create a cleaner indoor environment.
  • Humidity Control – Whole-home humidifiers and dehumidifiers help prevent mold, dry skin, and respiratory irritation.
  • UV Air Treatment – Eliminates bacteria, viruses, and mold spores before they spread through your home.
  • Carbon Monoxide Testing – Ensures your home is safe from harmful gas leaks that could go undetected.

By improving indoor air quality, you can breathe easier, reduce allergy symptoms, and create a healthier home for you and your family.

Contact National Heating & Air Conditioning Today

Your home should be comfortable in every season. Whether you need an urgent repair, a system upgrade, or routine maintenance, National Heating & Air Conditioning is here to help. Contact us today by calling (513) 621-4620 to schedule an appointment and experience the difference of working with a team that puts your comfort first.

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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.