| Matched equipment | Outdoor unit, indoor coil or air handler, furnace where applicable, controls, and manufacturer accessories. | Exact model numbers, tonnage, efficiency ratings, AHRI match where applicable, and whether accessories are included. |
| Installation labor | Removal, setting equipment, refrigerant or gas work, electrical connections, drains, controls, startup, and cleanup. | Crew scope, difficult access, line-set treatment, disposal, commissioning measurements, and labor warranty. |
| Job materials | Pads, disconnects, whips, fittings, drain materials, transitions, plenums, sealants, line-hide, and fasteners. | Which materials are included and which duct, electrical, gas, condensate, or structural work is excluded. |
| Permit and compliance | Permit administration, inspection coordination, code-required work, refrigerant handling, and required documentation. | Who pulls the permit, whether fees are included, and who pays for corrections tied to the quoted scope. |
| Business overhead | Estimating, scheduling, office staff, vehicles, insurance, licensing, training, tools, callbacks, and financing administration. | Compare the complete installed scope and service support, not employee wage or online equipment price alone. |
| Risk and warranty support | Project uncertainty, return visits, labor warranty exposure, manufacturer registration, and post-install service capacity. | Written labor-warranty length, exclusions, registration responsibility, service process, and change-order triggers. |