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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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Patrick Murphy
We relied on Cornett to replace our furnace last year and their service and work were outstanding and at a fair price. More recently, the Cornett team rerouted a number of air ducts in our old house as part of our kitchen remodel. And again, the work was very well done - and the team was able to complete the work quickly. I m glad a neighbor recommended Cornett. We’re very happy to work with them!
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Gina Hopkins
Zach was quick and very polite. Nice to work with!
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Tee Munir
Cornett is top notch. Knowledgeable, honest, and dependable. I highly recommend them. You’ll be in good hands. We had an issue with our AC sweating. We had another company come in who were not helpful. Cornett came in and helped us properly diagnose the problem.
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Kathy Koelle
Super responsive
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Melissa Bajadek
Cornett has always been attentive for my maintenance services. I did have a fairly complex ductless HVAC system installed and Cornett has been always ready to service as needed. I highly recommend.because of their attention and care to support the work they have installed.