Cornett Heating & Cooling of Maryland

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About Us

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:

Recent Work

506 Devonshire Lane ,Severna Park, MD, US

Cornett Heating & Cooling proudly installed a top-of-the-line 3 Ton Goodman gas furnace in a residence located in Severna Park, Maryland, ensuring optimal comfort and efficiency for our valued customers. Our expert team meticulously handled every aspect of the installation, from precise sizing to seamless integration, guaranteeing unparalleled performance and reliability. Trust Cornett Heating & Cooling for all your HVAC needs in Severna Park and beyond, where quality craftsmanship meets exceptional service.



506 Devonshire Lane , Severna Park, MD, US
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  • Our Services: Repairs
  • Our Services: Full Installs

16 Sunset Drive ,Severna Park, MD, US

Curious about the difference a professional upgrade can make? Check out this before-and-after from a recent project in Severna Park, Maryland. Cornett Heating & Cooling installed this efficient Goodman 3 Ton A2L Straight AC in just one day. Ready to see more of our local expertise? Explore our interactive portfolio!

16 Sunset Drive , Severna Park, MD, US
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  • Our Services
  • Our Services: Repairs
  • Our Services: Full Installs

Customer Reviews

Justin Rivers — review for Cornett Heating & Cooling
Justin Rivers - 2211 228th Street , Pasadena, MD, US
I called Cornett Heating and Cooling because my HVAC unit had developed a clog in the drain line and dripped water all over the basement floor. They got me back on track and prevented black mold from taking root in the basement. They were quick, professional, and very thorough. I'll certainly call them again next time I need something.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your wonderful feedback!

Carlos Torres — review for Cornett Heating & Cooling
Carlos Torres - 1254 Birchcrest Court , Arnold, MD, US
Very friendly and profesional. Arrived on time! Definitely happy with the service!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your feedback :)

scott chapman — review for Cornett Heating & Cooling
scott chapman - 208 Arabian Court , Gambrills, MD, US
Cornett replaced a 3-ton Trane that went bad with a 3-ton Bosch. They did a great job with installing, including reconnecting the zone system that already existed. They also explained all the rebates available, including Federal tax incentives. The Bosch seems to work well. The outdoor unit is very quiet compared to the Trane, and is much smaller.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your kind words :)

Sharmar DeLoach — review for Cornett Heating & Cooling
Sharmar DeLoach - 530 Millshire Drive , Millersville, MD, US
Professional and courteous, will use again.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your feedback!

Ryan Mankiewicz — review for Cornett Heating & Cooling
Ryan Mankiewicz - 2119 Quay Village Court Apartment T2, Annapolis, MD, US
From initial call to install Cornett Heating and Cooling exceeded all expectations. Receptionists were forthright and efficient in timely scheduling(during busy 100 degree summer days) and the service team was meticulous with the installation. Highly recommend!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for taking the time to leave us wonderful feedback!