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

Nicky Donnal — review for Cornett Heating & Cooling
Nicky Donnal
A technician came out less than 24 hours from when we placed our initial call. They were on time, competent, and polite. They quickly figured out the problem and fixed our AC. Will definitely use again!
Gene Cumm — review for Cornett Heating & Cooling
Gene Cumm - 8124 Bell Tower Crossing , Pasadena, MD, US
Robbie was great. Knew what the problem was right away, and fixed it quickly. Outstanding!! Five stars.
Meghan Hodge — review for Cornett Heating & Cooling
Meghan Hodge - 123 1st Avenue , Betterton, MD, US
Outstanding work, accommodating, professional, timely with a very competitive price. Josh and his crew are the best! They’ve done work at two of my homes and I couldn’t be happier! Thank you!!
Dale Pifer — review for Cornett Heating & Cooling
Dale Pifer - 716 Pumphrey Farm Drive , Severna Park, MD, US
Danny was very thorough and explained things as he checked and repaired A/C. Definitely would recommend and use again.
Robin Gibbons — review for Cornett Heating & Cooling
Robin Gibbons - 309 Songwood Court , Millersville, MD, US
New customer. I was unable to contact our original installation company so I called Cornett from a Facebook post. Left a message at 9a, was called back and scheduled and fixed by 2p. Danny is a gem. So polite and truly wanted me to learn what happened and why the part needed replaced. Beyond trustworthy. This company is top notch and completely deserves 10 stars!