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
  • 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

Joey Costa — review for Cornett Heating & Cooling
Joey Costa - 212 Ambleside Drive , Severna Park, MD, US
Danny from Cornett was prompt, thorough, and helped explain what was going on with out AC unit in the middle of a heat wave. The combination of a leaky valve and low refrigerant caused ice to build up (I figured as much), so he recharged the unit and ordered a replacement valve which is still under warranty. Professional, friendly, and respectful. These are people I respect and enjoy doing business with when necessary. If you’re looking for solid and knowledgeable HVAC clinicians, check out this... Read more
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for taking the time to leave us the amazing feedback :) We are thankful to have you as a customer!

Lori Abercrombie — review for Cornett Heating & Cooling
Lori Abercrombie - 649 Long Meadow Drive , Severna Park, MD, US
Zach did a great job. It was quick and painless and now my duct is back where it belongs!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Glad we could be of assistance! Thank you for your kind words!

Rhonda Harkins — review for Cornett Heating & Cooling
Rhonda Harkins - 111 Riviera Drive , Pasadena, MD, US
Tech was great
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your feedback!

Deana Olsen — review for Cornett Heating & Cooling
Deana Olsen
Josh was very patient with me and my purchase. This company is outstanding and I am so thankful for my new system.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for taking the time to leave us the amazing feedback :)

Johnny Justice — review for Cornett Heating & Cooling
Johnny Justice - 1195 Monie Road , Odenton, MD, US
It was a great experience.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your feedback!