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

Jake Stein — review for Cornett Heating & Cooling
Jake Stein - 51 Stratford Drive , Severna Park, MD, US
Highly recommend Cornett Heating & Cooling! Our technician, Zach, did an amazing job. He was punctual, professional, and thoroughly checked our system to make sure everything was running perfectly. He was super respectful of our home and took the time to answer all of our questions. Will definitely be using them again!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling4 months ago

Thank you so much, Jake, for the 5-star review and recommendation! We're thrilled Zach was punctual, professional, and respectful of your home while thoroughly checking your system. We'll be sure to pass along your kind words to him. We appreciate you choosing Cornett Heating & Cooling and look forward to serving you again.

John Savvides — review for Cornett Heating & Cooling
John Savvides - 514 Baltimore Annapolis Boulevard , Severna Park, MD, US
Super professional and super quick and efficient service
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling4 months ago

Thank you, John! We appreciate your kind words and are glad our team could provide professional, quick, and efficient service. We look forward to helping you again whenever you need us.

Patrick Bellotte — review for Cornett Heating & Cooling
Patrick Bellotte
Danny was early for our appointment and gave me great advice. The team did a great job on the install! Got the heat pump installed just in time to beat the heat.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling4 months ago

Thank you for the great review, Patrick. We're glad Danny was early and that his advice was helpful. We'll pass your kind words along to him. We appreciate your feedback and look forward to serving you again.

Joe B — review for Cornett Heating & Cooling
Joe B
Another great visit by Cornett (Chris) who explained everything on the semi annual visit. Very thorough and made a few recommendations and one minor repair on the spot. Value a trusted local company.
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling4 months ago

Thanks, Joe! We're glad Cornett (Chris) provided a thorough semi-annual visit and could handle the minor repair on the spot. We appreciate you valuing a trusted local company and your recommendation. We look forward to serving you again at your next visit.

Mike and Robin Boggs — review for Cornett Heating & Cooling
Mike and Robin Boggs
We called Cornett out for a quote to add a second HVAC unit to the upstairs of our home. They were fantastic from start to finish of the quote process and very knowledgeable about current County and other codes required for installing new units. We felt the quote we received was fair. We decided not to have the second unit installed because the electrical work required to support it pushes the total cost above our budget. We do plan to contact Cornett for our future maintenance needs for the exi... Read more
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling4 months ago

Mike and Robin, thank you for the thoughtful review and for considering Cornett for your HVAC project. We’re glad our team could provide a fair, code-compliant quote and clearly explain the electrical requirements. We understand your decision and look forward to helping with maintenance or any future work when the time is right. Please call or email us anytime for service or questions.