Home Service Log & Warranty Defense 2026: What Records Recover

Manufacturers deny 34% of in-warranty claims for one reason: missing service records. A maintained log recovers an average of $1,200/year in successful claims and reverses 71% of initial denials on appeal. Here's the documentation playbook.

Read any major HVAC, water heater, or appliance warranty and you'll find a clause requiring "documented annual maintenance by a qualified professional." That clause is the denial lever. When you call to file a claim, the first question is: "Can you send us your service records?" If the answer is "I think the previous owner did it" or "I don't have those," your claim moves to the denial pile.

The fix is structural, not heroic. A simple log — date, vendor, work done, cost, technician name — converts a denial into a paid claim 71% of the time on appeal.