There are two options for York installation.
York Certified Comfort Specialists are local air conditioning and heating companies that put their technicians through York’s training program. Specific training is provided about installing and fine-tuning York equipment.
Non-certified installers might have other certifications, but not York’s. For example, they could be certified by another brand or by the North American Technician Excellence (NATE) program. Of course, many York Comfort Specialists are NATE-certified too.