Selecting a HVAC contractor doesn't have to be an intimidating process. There are some questions you should ask any contractor that you are considering hiring. Knowing the right questions to ask can help ensure that you find a dependable, competent and honest service professional to handle all your air conditioning and heating needs. Before calling a contractor, know the brand name, the model and the approximate age of the system, as well as any warranties that may be in effect. Before you hire a prospective air conditioning contractor, you should take these important questions into consideration:

  • Does the contractor hold a Master License in the State of Delaware for HVAC and Electrical?
  • Does the contractor have liability insurance to protect you if something goes wrong?
  • Does the contractor have workers compensation insurance for their employees so if one is injury on the job the employee doesn’t sue you for their injury?
  • Will the contractor ensure that heat loss and heat gain load calculations are performed and that equipment is properly sized prior to your replacement or installation?
  • Will the contractor ensure that all equipment components are properly matched systems as identified by AHRI standards?
  • Will the contractor verify that the airflow across the indoor heat exchanger is within acceptable ranges and the system has the proper refrigerant charge?
  • Will the contractor ensure all electrical requirements are met as related to the installed equipment and electrical codes?
  • Will the contractor ensure the equipment rated efficiency for gas-fired or oil-fired equipment is at the equipment nameplate value?
  • Will the contractor ensure proper sizing, design, material selection and assembly of the combustion gas venting system?
  • Will the contractor ensure proper selection and functioning of system operational and safety controls?
  • Will the contractor check to ensure all ducts are sealed and that air leakage is minimized?
  • Will the contractor explain how to both operate and maintain the installed equipment to aid in the continuing peak performance of the installed equipment?
  • Will all company technicians who handle refrigerants recover and recycle them in compliance with EPA regulations?
  • Will all work performed by the contractor comply with state and local building and energy codes in your jurisdiction?
  • Will the contractor adhere to all federal, state, and local pollution codes and regulations as related to the safe and proper handling of hazardous materials and substances?
  • Does the contracting business have policies that support company technicians and/or installation personnel in performing quality trade practices?
  • Does the contractor encourage and support the continuing educational development of sales, installation, service and support personnel to promote superior customer satisfaction?
  • Does the contractor ensure employees receive the appropriate type and level of safety training?
  • Does the contractor have a written policy to promptly address deficiencies in workmanship or materials?


Thank you, thank you, thank you! Had I listened to the other company I would have paid thousands to replace my heat pump instead of a few hundred to fix it.

- Amy
Frankford, Delaware