HVAC warranties confuse many homeowners because several different warranties overlap. Manufacturer warranties typically cover parts for the compressor, heat exchanger, and other components for set periods—often longer on the compressor than on ancillary parts. Those parts warranties usually do not include labor after the first year unless you buy an extended plan or the installing dealer provides separate labor coverage.
Registration deadlines matter. Many manufacturers require online registration within a set window after installation to activate the full term. Missing that window can reduce coverage to a basic statutory period. Keep your serial numbers, install date, and registration confirmation with your closing documents.
Labor warranties are separate. The installing contractor may offer one-, five-, or ten-year labor coverage through a dealer program. Read whether that labor warranty is backed by the manufacturer, the dealer, or a third-party admin company—and what happens if the dealer goes out of business.
Transferability affects resale value. Some parts warranties transfer to a new owner; others do not. Maintenance requirements are real: neglected filters, unapproved modifications, or failure to document annual service can void claims even when equipment is relatively new.
Before signing, get warranty terms in writing with the specific model numbers on your bid. Compare parts versus labor length, exclusions for refrigerant, shipping of parts, and who dispatches a technician when something fails. A strong equipment warranty still leaves you paying labor if the dealer’s labor coverage is weak or short.