Take a look at our past work!

Cornett Heating & Cooling

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.


Check out some important pages from our company's website:


Read what 300+ clients have said about our services:

Our Work

2529 Running Wolf Trail , Odenton, MD, US
  • Our Services
  • Our Services: Repairs
40 Hearthstone Court , Annapolis, MD, US
  • Our Services
  • Our Services: Annual Maintenance Program
18 Saint Ives Drive , Severna Park, MD, US
  • Our Services
  • Our Services: Repairs
302 Smith Avenue , Severna Park, MD, US
  • Our Services
  • Our Services: Annual Maintenance Program
238 Waycross Way , Arnold, MD, US

See the power of Bosch systems! This 5-ton unit was expertly installed by Cornett Heating & Cooling for a client in Arnold, Maryland – all in a single day. Discover the quality and efficiency we bring to your area by viewing our interactive portfolio.

  • Our Services
  • Our Services: Full Installs

Customer Testimonials

Reviewer photo
Tracey Stahl
Our AC died on a Saturday, within 3 hours of our service call the technician arrived. He was courteous, knowledgeable and had our unit up and running in a timely manner. I would highly recommend Cornett for your next Heating and Cooling service.
Reviewer photo
Courtney Jones
Professional and easy to work with.
Reviewer photo
Mandy Krauson
Quick response and great service!
Reviewer photo
Kristen Berthelotte
We called them with a problem and they were out within a few hours. They assessed what needed to be done and put it on the books for the next business day. Their tech was very courteous- we feel great about this local business and appreciate their integrity, too.
Reviewer photo
Kelsey Budesa
Couldn’t recommend Cornett more! They saved us when another business gave us an outrageous quote for a coil replacement. Zach, Julie and the whole team were so friendly, efficient and had our system repaired within a couple days of first calling them. They are truly the best.