Take a look at our past work!

Cornett Heating & Cooling

We service the Serverna Park, Annapolis, Arnold, Pasadena, Glen Burnie, Millersville and surrounding areas.  Reach out to us if you’d like a consultation, 410-801-7771

About Cornett Heating & Cooling


Cornett Heating & Cooling, located in Severna Park, Maryland, is your premier destination for top-quality HVAC (Heating, Ventilation, and Air Conditioning) services. Our team of highly trained and certified technicians is dedicated to providing exceptional HVAC solutions for both residential and commercial customers. When it comes to HVAC installation, maintenance, and repairs, we have the expertise to keep your indoor environment comfortable year-round. At Cornett Heating & Cooling, we prioritize energy efficiency and sustainability, offering eco-friendly HVAC options to help you reduce your energy bills and environmental impact.


As your trusted HVAC company in Severna Park, we take pride in our commitment to customer satisfaction and our deep roots in the local community. Our website, https://www.cornetthvac.com/, showcases our professionalism and the range of services we offer. Whether you need a new HVAC system installed, routine maintenance, or emergency repairs, you can rely on Cornett Heating & Cooling to deliver reliable, cost-effective solutions. Contact us today for all your heating and cooling needs, and experience the difference our expertise makes in keeping your home or business comfortable and energy-efficient.


Check out some important pages from our company's website:


Read what 300+ clients have said about our services:

Our Work

734 Ticonderoga Avenue , Severna Park, MD, US
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  • Our Services: Repairs
613 Cape McKinsey Drive , Severna Park, MD, US

For this job, Cornett HVAC provide an annual maintenance program on this 3-ton Bosch heat pump. We highly recommend an annual maintenance program for your HVAC unit. It is highly beneficial as it ensures optimal performance, identifying and addressing potential issues before they escalate, thereby preventing costly repairs and extending the system's lifespan. Moreover, regular maintenance enhances energy efficiency, lowering utility costs and providing consistent comfort throughout the year. Give us a call today to learn more about our annual programs, 410-801-7771 . You will be happy you did!

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  • Our Services: Repairs
  • Our Services: Annual Maintenance Program
  • Our Services: Full Installs
355 Loblolly Way , Grasonville, MD, US
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  • Our Services: Repairs
9 Sonneborn Lane , Severna Park, MD, US
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  • Our Services: Repairs
  • Our Services: Full Installs
  • Our Services: Annual Maintenance Program
316 Songwood Court , Millersville, MD, US
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  • Our Services: Repairs
  • Our Services: Annual Maintenance Program

Customer Testimonials

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Mary Mouring
On time, detailed, and made sure everything worked before leaving. Technician also cleaned up the area.
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Brooke Long
First time using Cornett Heating and Cooling and couldn’t be happier we chose them. The office staff that answered my call was friendly and helpful and sent a technician out within a couple hours. Our technician, Zach, was amazing! He was friendly, honest, and explained everything he was doing. Added bonus-he was able to fix our HVAC system on the spot. We will definitely be returning customers and recommend them to all our family, friends, and neighbors.
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Dave Huzarewicz
Zack was On time, professional and thorough. Knowledgeable and explained the situation. He was selling all the time with his knowledge of the system and is an Asset to your company. I hope he is compensated adequately!
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Sean Boyle
Great and honest service. Zack was thorough, professional, and timely. Highly recommend.
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Renée Riley-Adams (RARA)
This was our first service on our new heating and AC systems. Mike H. was great and they sent me a text when he was on his way. He finished in the time predicted and was very personable. Highly recommended!