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

Vincent Alcamo — review for Cornett Heating & Cooling
Vincent Alcamo
Josh Cornett (Owner) has made several attempts unsuccessfully with Trane support personnel to remedy a contaminated HVAC Air Conditioning system, due to the system not being installed correctly by a local Trane dealer in about 2018. This situation is in no way a reflection of the competency of Cornett Heating and Cooling. Trane does not appear to stand behind its products and offers no support to non Trane HVAC personnel.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling5 months ago

Thank you, Vincent, for acknowledging Josh’s persistent efforts. We’re very sorry the original Trane dealer’s installation led to contamination and for Trane’s lack of support in this case. Cornett Heating & Cooling stands behind our work and will continue to pursue a resolution for affected customers. We appreciate you sharing this experience as it helps others know we will advocate for fair manufacturer support.

M Flynn — review for Cornett Heating & Cooling
M Flynn
Great experience from proposal through installation. I never felt like a number or just "the next job" to get done. Everyone I dealt with was very professional but casual which made it very easy on me. Nothing was rushed and they took care of everything. Thanks Cornett!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling5 months ago

Thank you for your wonderful feedback and support of our small business!

Jessica Lawson — review for Cornett Heating & Cooling
Jessica Lawson - 8095 Castle Rock Court , Pasadena, MD, US
Very professional and knowledgeable
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling5 months ago

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

Boy — review for Cornett Heating & Cooling
Boy
Danny, Will and the team were great in reworking some ducts after a construction project. Their innovative solution kept drywall work to a minimum and significantly improved air flow. Price was reasonable for the two efforts. We will definitely hire them again!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling5 months ago

Thank you for the wonderful review! We appreciate your support!

Gregory Nucifora — review for Cornett Heating & Cooling
Gregory Nucifora - 951 Juliet Lane , Arnold, MD, US
Ironically we scheduled a summer tuneup on our HVAC system well before we learned that winter was going to leapfrog spring right into summer. Not only was it a good choice to do it early but to call Cornett Heating & Cooling. Zach did a thorough job examining the system and offered a short list of options to bring it to peak performance. There was no strong-arming to get work done immediately. I appreciate that and look forward to doing business again with Cornett in the future.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling5 months ago

Thank you for the amazing feedback! We appreciate your business!