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, 410-647-6979

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
  • Our Services
  • 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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Matt Bruffey - 504 Silverbark Court , Millersville, MD, US
Fast response, Professional and friendly. Almost impossible to come by this kind of service these days. Highly recommend. With this level of service they will have a customer for life. Thanks Cornett!!!
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Leslie Coleman - 512 Green Forest Drive , Severna Park, MD, US
Very service oriented and attentive. Wonderful to work with. Josh, Danny and Julie have all gone above and beyond.
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Carol Snyder - 682 Hendler Road , Severna Park, MD, US
Cornett Heating & Cooling professionals are knowledgeable and respectful. We appreciate their service and rely on them for their excellent advice and capabilities for maintenance and upgrades to our systems. We use them for all of our properties and have always been very happy with their work and pricing.
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Thom Baker - 691 Dill Road , Severna Park, MD, US
Watching my electric bills drop with an efficient Bosch air-conditioning system.
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Sandie Irwin - 8049 Veterans Highway 31, Millersville, MD, US
Cornett heating and cooling came to my home on 10/30/23 to install a heating and cooling system. Not only were they professional installers but they came 1/2 hour early and finished 1 hours early . They took the time to show me how to use my system. They took all the trash with them. Left my home as clean as it was before they came. Overall this was the best heating and cooling company I ever used. I recommend if you Want a professional and caring company then call Cornett.