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

Renée Riley-Adams (RARA) — review for Cornett Heating & Cooling
Renée Riley-Adams (RARA)
Chris was great, professional and respectful of being in our home. He did his checks, cleaned up after himself, and encouraged me to change my air filters more regularly with a smile! I totally trust this company.
Cornett Heating & Cooling response
Response from Cornett Heating & Coolinga year ago

Thank you for your kind words and 5-star review!

Joyce Newton — review for Cornett Heating & Cooling
Joyce Newton - 467 Yorkshire Drive , Severna Park, MD, US
Chris did a great job servicing the furnace/AC. Very professional and personable. The entire team at Cornett is very professional, knowledgeable, and friendly. Great local company.
Cornett Heating & Cooling response
Response from Cornett Heating & Coolinga year ago

Glad we could be of assistance! Thank you for your support!

Shaun Magner — review for Cornett Heating & Cooling
Shaun Magner - 90 Riverside Drive , Severna Park, MD, US
We had such a great experience with the tech, Michael, that came out to address a condensation issue with our indoor air handler. He was punctual, kind and honest - what else could we ask for! We were referred to Cornett by a neighbor and are very happy to have found them!
Cornett Heating & Cooling response
Response from Cornett Heating & Coolinga year ago

Thank you for your kind words and 5-star review! We are glad we could help and appreciate you choosing us!

Carleena Hunter — review for Cornett Heating & Cooling
Carleena Hunter - 43 Holly Road , Severna Park, MD, US
Zach was fantastic! I was worried I would have to replace my ac unit but he quickly identified the issue and only recommended necessary fixes/solutions to keep it running (hopefully) through the summer. Got my AC up and running within 30 minutes! When I'm ready to replace my system, Zach and Cornett Heating & Cooling will be my first call!
Cornett Heating & Cooling response
Response from Cornett Heating & Coolinga year ago

Thank you for taking the time to leave us amazing feedback! We are glad we could help and appreciate your business!

Toni Hochard — review for Cornett Heating & Cooling
Toni Hochard
I love calling Cornett—they’re always quick, reliable, and get the job done right the first time. It’s such a relief knowing I can count on them for quality work every time. From start to finish, the process is smooth and stress-free. Highly recommend!
Cornett Heating & Cooling response
Response from Cornett Heating & Coolinga year ago

Thank you for your kind words and continued business!