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.

Complete Heating and Cooling Services in Northside 

Proudly serving the Cincinnati area for more than 90 years, our goal is to make your home or business a place of lasting comfort. Whether you need a fast heating repair, a full HVAC system upgrade, or scheduled maintenance, our experienced team delivers reliable solutions designed for long-term efficiency and hassle-free operation. When you need the peace of mind that comes with quality Northside heating and cooling services, call the team at National at (513) 621-4620 or contact us online to get started. 

Comprehensive Heating Services in Northside

Lennox furnace being installed

When the chill sets in, nothing is more important than knowing your home will stay warm and comfortable. We understand that peace of mind comes from having a heating system that works reliably when you need it most. That’s why our team takes the time to listen to your concerns, evaluate your home’s specific heating needs, and offer personalized solutions. Our Northside heating services include:

Northside Cooling Services to Keep You Comfortable

Northside summers can be unpredictable, but your cooling system shouldn’t be. We know that unexpected breakdowns can be frustrating, which is why we offer customized solutions to keep your home consistently comfortable. Whether you need a quick repair, an upgrade to an energy-efficient system, or preventative maintenance to avoid surprises, our Northside AC services are designed to give you confidence and relief from the heat, including:

Indoor Air Quality Services in Northside

Your home should be a sanctuary where you and your loved ones feel comfortable and breathe easily. However, hidden pollutants like dust, pet dander, and mold spores can negatively impact your indoor air quality. If you or your family members suffer from allergies, frequent coughing, or unexplained headaches, poor air quality could be the culprit. We have designed our Northside indoor air quality services to include:

  • Air Purifiers: Our advanced air purifiers capture and remove a wide range of airborne pollutants, including dust, pet dander, pollen, and smoke particles. These systems help alleviate allergy symptoms, reduce respiratory issues, and create a healthier living space.
  • Humidifiers and Dehumidifiers: Maintaining proper humidity levels is essential for both comfort and health. High humidity can encourage mold and mildew growth, while dry air can lead to skin irritation, sinus issues, and static electricity buildup.
  • UV Air Treatment: This technology is especially beneficial for those with asthma or weakened immune systems, helping to reduce harmful microorganisms in your home’s HVAC system.
  • Carbon Monoxide Detection and Testing: Carbon monoxide is a silent but deadly threat. Our carbon monoxide detection services ensure that your home is equipped with properly installed detectors that provide early warnings in case of leaks. Our technicians also conduct thorough testing to check for any potential CO exposure from furnaces, water heaters, and other fuel-burning appliances.
  • Duct Cleaning Services: Over time, dust, dirt, and allergens build up in your ductwork, reducing HVAC efficiency and contributing to poor air quality. Cleaner ducts mean cleaner air, improved airflow, and even potential energy savings by enhancing system efficiency.

Specialized Commercial HVAC Services in Northside

Boiler and pipes of the heating system.

Having a dependable HVAC system means business owners can focus on what matters most—running their operations smoothly. At National Heating & Air Conditioning, we understand that a reliable heating and cooling system provides peace of mind, ensuring employees stay productive and customers remain comfortable. That’s why we offer customized solutions to meet the unique needs of every commercial property, so you never have to worry about unexpected HVAC issues disrupting your business. Our commercial heating and cooling services in Northside include:

  • Commercial AC and Heating Services: We offer expert installation, repair, and maintenance of commercial heating and cooling systems. Our team ensures your system runs efficiently, minimizing disruptions and reducing energy costs.
  • Commercial Boiler Services: Boilers play a crucial role in many commercial heating systems. Our technicians provide routine maintenance, repairs, and installation services to keep your boiler performing optimally, ensuring steady and reliable heating for your business.
  • Commercial Heat Pumps: Businesses seeking an energy-efficient heating and cooling solution can benefit from our commercial heat pump services. We provide system selection guidance, professional installation, and ongoing maintenance to maximize energy savings and operational efficiency.
  • HVAC System Design and Consultation: Every business has unique HVAC needs, and our team works closely with you to design a system that meets your facility’s specific requirements. From new construction projects to system upgrades, we offer expert guidance and tailored solutions that enhance comfort and performance while optimizing energy use.

Why Choose National Heating & Air Conditioning?

Choosing the right HVAC service provider is essential for long-term comfort and efficiency. Here’s why Northside residents and businesses trust us:

Contact National Heating & Air Conditioning Today

Enjoy peace of mind knowing your HVAC system is in expert hands with National Heating & Air Conditioning. Whether it’s a routine check-up to keep things running smoothly or an urgent repair to restore comfort quickly, our team is dedicated to providing reliable solutions tailored to your needs. For Northside heating and cooling services you can trust, call (513) 621-4620 today or contact our team online to get more information. 

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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.