Steps to Get an HVAC CertificationComplete your high school diploma or equivalent GED certificate. This is the minimum requirement to enter the HVAC field.Complete post-secondary HVAC education and training. A number of post-secondary HVAC education and training programs are available. These include certificates, associate’s degrees, bachelor’s degrees, etc.Go for an HVAC apprenticeship (optional) You are not obligated to go for an HVAC tech apprenticeship. However, it can do your career a world of good.Get the required work experience. With proper education and a high-quality apprenticeship under your belt, you can now take up entry level jobs in the field.Apply for HVAC certification online and take the test. In all likelihood, you will need to pass a written test in states where HVAC certifications are mandatory.