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

Holden Silvia — review for Cornett Heating & Cooling
Holden Silvia - 333 Lazywood Court , Severna Park, MD, US
Danny from Cornett came out promptly when he heard our AC was down and we had a newborn in the house. Made sure that we had a solution to keep us running while new parts were ordered and got us all set back up super quick. Couldn't ask for better service from Cornett and Danny!
Michael Bellotte — review for Cornett Heating & Cooling
Michael Bellotte
I’m the middle of a heat wave and you guys are doing semiannual checkups. Impressed with the organization. Highly recommend Josh and his team
Nini Goodwin — review for Cornett Heating & Cooling
Nini Goodwin - 1 Luna Lane , Severna Park, MD, US
We love Cornett! Always quick to respond, come out to our house and get the job done, honest and reliable. Could not be happier! Many thanks
C K — review for Cornett Heating & Cooling
C K
Fantastic job by Cornett HVAC (and specifically both Willy & Anthony). They installed a new hot water heater with a drip pan underneath. They also, found a few other problems during the installation and fixed them on the fly (by adding an expansion tank & new quarter turn valve). Overall, a great experience & I wouldn't trust anyone besides Cornett HVAC to do this work. They're the best in the state of MD.
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!

Ellen Oakes — review for Cornett Heating & Cooling
Ellen Oakes - 10 Saint Andrews Crossover , Severna Park, MD, US
Happy to be back to a cool house after a quick response.