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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.


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Read what 300+ clients have said about our services:

Our Work

114 Round Bay Road , Severna Park, MD, US

Daikin Single Port Mini Split 1 Ton, before and after

  • Our Services
  • Our Services: Repairs
  • Our Services: Mini Split Installs
1048 Rustling Oaks Drive , Millersville, MD, US

This 3.5-ton Daikin FIT heat pump was installed by Cornett Heating & Cooling. It is a powerful and efficient heating and cooling system designed to provide optimal comfort in residential spaces. With its innovative technology, this unit offers high energy efficiency, allowing homeowners to save on utility bills while enjoying consistent temperature control throughout the year. Its compact design and quiet operation make it an excellent choice for those seeking reliable and unobtrusive climate control solutions. If you are looking for a maintenance call for your unit or you think you might need a full AC/Furnace install give us a call today, 410-801-7771. We truly appreciate your consideration.

  • Our Services
  • Our Services: Full Installs
111 Bellehahn Court , Severna Park, MD, US

Cornett Heating and Cooling installed this Dakin Mini-split for our customers in Severna Park Maryland. Here's what you should know about the Dakin Mini-split:


  1. Ductless Design: Daikin mini-split systems do not require ductwork, making them a flexible option for both new construction and retrofitting existing buildings. They consist of an outdoor unit (condenser) connected to one or multiple indoor units (evaporators) mounted on the walls or ceilings of specific rooms or zones.
  2. Energy Efficiency: Daikin is known for its emphasis on energy-efficient systems. Their mini-split units often feature advanced technologies, such as inverter-driven compressors, which can adjust their speed based on the cooling or heating requirements, leading to energy savings.
  3. Quiet Operation: These systems typically operate quietly, providing comfort without creating a lot of noise disturbance.
  4. Smart Connectivity: Many modern Daikin mini-split systems come equipped with smart features, allowing users to control the units remotely through smartphone apps or integrate them with smart home systems for added convenience.


Call us today if you'd like to learn more, 410-801-7771

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  • Our Services: Full Installs
  • Our Services: Annual Maintenance Program
  • Our Services: Mini Split Installs
489 Maple Road , Severna Park, MD, US
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  • Our Services: Annual Maintenance Program
  • Our Services: Repairs
274 Whistling Pine Road , Severna Park, MD, US

The 4-ton Bosch heat pump is a robust and reliable HVAC system designed to efficiently regulate indoor temperatures in larger residential or light commercial spaces. With its advanced technology and superior performance, this unit ensures both heating and cooling needs are met effectively while prioritizing energy efficiency for reduced operational costs.


Owner, Josh Cornett and his team, have been in business for over three decades now and service all of Anne Arundel County and surrounding counties. We specialize in residential and commercial services and can handle any job, big or small.


Check out our reputation:

  • Our Services
  • Our Services: Full Installs

Customer Testimonials

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Mike & Lisa Etheredge
Zach arrived promptly, quickly diagnosed the issue, and made the repair. He also provided a thorough explanation of the issue and resolution. We bought our HVAC system from Cornett a few years ago and continue to be very happy with the professional service they provide. Have referred multiple family members and friends to them as well.
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Kelly Brown
Danny was prompt and expeditious in servicing our AC unit and getting it back in working order, during one of the hottest days of the summer.
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mindi wachs
Danny was our tech … he was great… informative, professional, on time and so helpful. Cornett got us on the books quickly in the middle of heatwave. Thank you! Highly recommend!
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Michelle Clabby
The two gentleman were actually early for the appointment and very polite and professional. We’ll call them if any other issues arise.
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Alvina Williams
The experience with Cornett Heating & Cooling was very professional and excellent customer service from setting up the request on line and a follow up call from the office, to set up the official appointment for maintenance service for my HVAC System. The Technicians were on time, running ahead of their schedule, and afforded me the coursety with a phone call to see if they could arrive earlier which was excellent for me. Once the Technicians entered my home, they were very professional, consi...Read more