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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, 410-647-6979

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

1822 Braddock Drive , Crofton, MD, US

Daikin Fit 3 Ton Heat pump, 3 ton Daikin fit Gas Furnace combo. Before and after

  • Our Services
  • Our Services: Full Installs
132 Idlewild Road , Severna Park, MD, US
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  • Our Services: Full Installs
1246 Harbor Glen Court , Arnold, MD, US

Two 4 ton Heat Pumps

  • Our Services
  • Our Services: Full Installs
12 Saint Andrews Crossover , Severna Park, MD, US

Daikin 3.5 Ton Fit Gas furnace

  • Our Services
  • Our Services: Full Installs
156 River Road , Pasadena, MD, US

Bosch 2 Ton Heat Pump. Before and after

  • Our Services
  • Our Services: Full Installs

Customer Testimonials

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Rick Carlson - 767 Trenton Avenue , Severna Park, MD, US
I have used Cornett HVAC multiple times for HVAC system installation, modification, and maintenance. Everytime they have been attentive, thorough, and ensured quality. Today my old motor died for my heating unit. Danny was out the same day to evaluate problem with the part ordered and installed the next day by Danny and Robbie before temperatures were predicted to drop into 30's. Not only good technicians but good people at Cornett.
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Tina Bradshaw - 546 Benfield Road , Severna Park, MD, US
Always amazing service- all of the Cornett Heating and Cooling professionals are courteous and timely, and do the utmost quality job. Their knowledge of these complicated systems is incredible. I wouldn’t trust anyone else with our systems. They work in both our business units and home units and we refer them to all of our real estate clients. We have never had a complaint! Thank you for being the best! Tina Bradshaw Monument Sotheby’s International Realty.
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John Edwards - 107 Water Fountain Way , Glen Burnie, MD, US
We have always has great service with Cornett HVAC Thanks again for quick service
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Bill Scullin - 160 Berrywood Drive , Severna Park, MD, US
This company is great. Very professional and responsive. Just moved into a house with an old furnace. Danny took the time to educate me on my system and allowed me to shoulder-surf so I could learn a thing or two. Very respectful and hardworking crew. I signed up for a service contract on the spot. Highly recommend.
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Cliff Strass - 603 Knollwood Road , Severna Park, MD, US
Josh and his team did a great job putting in our Bosch heat pump last season. This year Danny came out to check on the units and was very helpful in explaining what they were doing. Highly recommend Cornett!