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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.


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Read what 300+ clients have said about our services:

Our Work

2529 Running Wolf Trail , Odenton, MD, US
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  • Our Services: Repairs
40 Hearthstone Court , Annapolis, MD, US
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  • Our Services: Annual Maintenance Program
18 Saint Ives Drive , Severna Park, MD, US
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  • Our Services: Repairs
302 Smith Avenue , Severna Park, MD, US
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  • Our Services: Annual Maintenance Program
238 Waycross Way , Arnold, MD, US

See the power of Bosch systems! This 5-ton unit was expertly installed by Cornett Heating & Cooling for a client in Arnold, Maryland – all in a single day. Discover the quality and efficiency we bring to your area by viewing our interactive portfolio.

  • Our Services
  • Our Services: Full Installs

Customer Testimonials

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Darla C
Jess at Cornett HVAC answered my call right away and walked me through the initial steps of what I might possibly do to save $ and possibly figure out the issue. She was very kind as for someone like me needed someone to "dummy down" the situation. When we decided it was best to send a technician I was put in the books right away. Josh Cornett came the next day and diagnosed the issue and showed me everything I needed to look for and what needed to be done. Hands down great Family and true to th... Read more
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Deborah Howard
Totally OUTSTANDING! Cornette Heating & Cooling is simply the best! And, very reasonably priced. Will, Ryan, Tony, and Noah did an excellent job installing my new Bosch HVAC system. I couldn't be happier! Thanks SO much! A+++
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Jaime Kotanko
Knowledgeable and friendly as always with clear communication skills of problem and resolution. Thank you for the prompt service during this busy busy week.
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keith baker
Zach was very knowledgeable, answered all my questions and was professional through the experience. Clear communication through the entire booking, visit, and follow up process.
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Bobby Gribbin
Cornett went above and beyond for us today. They were slammed with called from the weekend and still showed up for service 3 hours after I called. Zack was over our house twice today and went above and beyond. He was able to solve our issue in no time and got our family comfortable again. I will ask for Zack in the future.