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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

609 Yearling Court , Severn, MD, US

Are you sitting at your home searching for the top HVAC company near me? If so, we think you just found them. We installed this 4-ton Bosch heat pump for our customers in Severn Maryland. Cornett Heating and Cooling has been servicing residents in Anne Arundel County and surrounding counties since the early 90s. We are proud to have over 350+ Google reviews (and yes, they are authentic reviews) and have a perfec five-star rating. Give us a call today to learn more about our company and to request a service call, 410-801-7771 .

  • Our Services
  • Our Services: Repairs
  • Our Services: Full Installs
748 Stinchcomb Road , Severna Park, MD, US

3 ton Bosch heat pump, with duct work

  • Our Services
  • Our Services: Full Installs
1111 Broadview Drive , Annapolis, MD, US

Cornett Heating and Cooling did it again by installing this 3-ton heat pump. The Dakin 3-ton FIT pump stands out as a robust HVAC solution tailored for medium-sized environments, offering efficient heating, ventilation, and air conditioning. Its three-ton capacity ensures optimal performance, striking a balance between effective temperature control and energy conservation for both residential and commercial settings. We are happy to say that when writing this up, we have reachd over 400+ Google Reviews. All of our reviews come from our customers and we truly appreciate their authentic feedback ❤️.

  • Our Services
  • Our Services: Full Installs
908 South 8th Street 3rd floor, Louisville, KY, US

Cornett Heating & Cooling provided some needed repairs for our cusotmers in Pasadena. If you are in need of a repair, service call, or would like to be put on our annual maintanence plan, give us a call today at 410-801-7771. We will help keep you warm in the coming months. You have our word on it. But don't just take our word. Check out our over 325 Google reviews from our happy customers.

  • Our Services
  • Our Services: Repairs
1410 Andre Street , Baltimore, MD, US

This was a new Goodman 60k gas furnace replacement that Cornett Heating & Cooling installed in Baltimore Maryland. As a top HVAC company in Baltimore, Cornett HVAC can handle any job. Here is a little information on what a Goodman 60K gas furnace brings to the party:


Goodman Manufacturing is a well-known manufacturer of heating and cooling equipment, including gas furnaces. A 60,000 BTU (British Thermal Units) gas furnace is a common size for residential heating systems. However, specific technical specifications for a Goodman 60k gas furnace replacement may vary depending on the model and series. Here are some typical technical specifications you might find 🔥 🙌 👇:


  1. BTU Output: A 60k gas furnace produces 60,000 BTUs of heat per hour, which is a measure of its heating capacity.
  2. Efficiency Rating: Goodman furnaces come with different Annual Fuel Utilization Efficiency (AFUE) ratings. Higher AFUE ratings indicate greater energy efficiency. Typical Goodman models may have AFUE ratings ranging from 80% to 96%.
  3. Fuel Type: Goodman gas furnaces use natural gas or propane as their fuel source. You'll need to specify the type of gas when purchasing a replacement.
  4. Dimensions and Size: The physical dimensions of the furnace can vary. It's important to ensure that the replacement furnace fits in the available space in your HVAC system.
  5. Blower Motor Type: Goodman furnaces may come with variable-speed or multi-speed blower motors, which affect airflow and energy efficiency.
  6. Heat Exchanger Material: The heat exchanger is a critical component. Goodman typically uses either stainless steel or aluminized steel heat exchangers.
  7. Ignition System: Goodman furnaces can have either intermittent pilot ignition or hot surface ignition systems.
  8. Warranty: Goodman often provides various levels of warranties, including parts and heat exchanger warranties. Warranty terms can vary based on the specific model and where it's purchased.
  9. Venting Requirements: The venting system for the furnace will depend on the model. Some models are compatible with both single-pipe and two-pipe venting systems.
  10. Control System: Goodman furnaces come with different control systems, which can include basic thermostat compatibility or more advanced control options for zoning and remote monitoring.
  11. Noise Level: The noise level is typically measured in decibels (dB) and can vary between models.
  12. Installation Requirements: Consider whether your replacement furnace requires any specific installation requirements, such as clearances, ductwork modifications, or specific voltage and gas line requirements.


It's essential to consult the specific model's technical documentation and user manual to get precise information about the replacement furnace's specifications. Additionally, consult with a licensed HVAC professional to ensure the replacement is appropriate for your specific heating needs and system requirements.

  • Our Services
  • Our Services: Repairs

Customer Testimonials

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Heather Ward
Michael arrived as scheduled, listened to the concern, and got right to work to solve the issue. Our heat was back up and running in less than 30 minutes and he explained what happened and what to do going forward to avoid the issue again. Thank you
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Marsha Hambrick
Michael and Gabriel were polite, affable and tidy. Their professional demeanor made me comfortable signing a contract for the next year. I look forward to working with Cornett Heating and Cooling in the future.
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Robin Sells
I highly recommend Cornett Heating and Cooling! I have been a customer since 2004. Hard working employees, friendly and very good about explaining what they were going to do and answering all of my questions.
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Larry Sells
Cornett HVAC cleaned my air ducts and dryer vent today and were fast, efficient, and did quality work. I highly recommend them for cleaning your air ducts and dryer vents. A+ Quality company all the way. Choose Cornett for cleaning your air ducts in confidence. I HIGHLY RECOMMEND THEM!! Great LOCAL company that does GREAT WORK. You can trust Cornett Heating and Cooling.
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Thomas Streiff
Zac and Gabriel were great!