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

Dan Huber — review for Cornett Heating & Cooling
Dan Huber - 2413 228th Street , Pasadena, MD, US
We couldn't be happier with the work that the Cornett team did. Michael did a superior job of adding ductwork to a downstairs bathroom and laundry room that was previously unconditioned. He also vented the bathroom fan outdoors that was previously vented into the ceiling cavity. Once the job was completed we finally have heated spaces. Frankly, and you'd never know he was even here. From the initial consultation through install and cleanup. Great job! We highly recommend Cornett for any H... Read more
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for taking the time to leave us amazing feedback! We appreciate your business!

Dan Goodwin — review for Cornett Heating & Cooling
Dan Goodwin - 8239 Powers Drive , Millersville, MD, US
Tyler was great. Polite, efficient, and did a great job. Recommend the semi-annual maintenance plan - smart investment to keep things running well.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling3 months ago

Thank you for taking the time to leave us this wonderful review! We appreciate your support!

john drexel — review for Cornett Heating & Cooling
john drexel - 115 Litton Dale Lane , Pasadena, MD, US
Zach is the best!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling4 months ago

Thank you, John! We’re so glad Zach provided an outstanding experience and we’ll be sure to pass your praise along to him. We appreciate you taking the time to leave a review and hope to see you again soon.

Leslie Goldman — review for Cornett Heating & Cooling
Leslie Goldman - 7150 East Furnace Branch Road , Glen Burnie, MD, US
This is my second Cornett HVAC installation on my commercial property in Glen Burnie in 6 months. I am delighted with the outstanding service and promptness of their response to phone calls. Danny, Josh and Julie, I greatly appreciate your reliable and efficient company which I highly recommend! Thank you.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your positive review and kind words :)

Jessica Langley — review for Cornett Heating & Cooling
Jessica Langley - 116 Saint Ives Drive , Severna Park, MD, US
Thank you so much for replacing our HVAC. We had a wonderful experience with Cornett Heating and Cooling!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your feedback :)