Understanding Contractor Warranties: Read the Promise, Not the Label

Distinguish product coverage from labor

A manufacturer may warrant a product while the contractor separately promises workmanship. Ask who provides each promise, how long each applies, what remedy is offered, and whether installation conditions affect product coverage. Do not assume the contractor can resolve a manufacturer claim or that a product warranty includes labor to remove and reinstall it.

Request copies or links to the warranty documents for specified materials, plus the contractor’s written labor warranty. Identify the start date and any required registration, maintenance, inspection, or transfer steps.

Read exclusions and the claim process

Look for exclusions related to water intrusion, movement, maintenance, improper installation, owner-supplied products, consequential damage, or work by others. Ask how to report a problem, how quickly the provider responds, who diagnoses the issue, and whether access or repair costs are covered.

Ask what happens if the contractor ceases operating and whether any written warranty is backed by another entity. Federal warranty law and state rules vary by product and transaction, so do not treat a short sales description as a substitute for the actual terms.

• Save contracts, receipts, product labels, photos, and care instructions.
• Get promised warranty changes in writing before signing.

Compare warranties as part of the bid

When comparing bids, evaluate the scope and workmanship terms together. A longer advertised period may have narrow coverage, notice deadlines, or exclusions; ask bidders to answer the same questions and attach their full terms.

The Magnuson-Moss Warranty Act addresses written consumer product warranties; it does not make every contractor promise identical. A home-improvement contract can involve separate state and local protections, so check the relevant local consumer-protection office if a term is unclear.