Roof Warranties Explained: What San Bruno Homeowners Actually Get

By Roof Replacement Co · 2026-09-04 · Roof Replacement Guide

'Lifetime warranty' sounds simple. It is not. Here is what manufacturer, workmanship, and enhanced system warranties really cover — and the fine print that matters.

Manufacturer material warranties

These cover defects in the roofing material itself — not installation errors, not storm damage, not wear. Standard architectural shingles carry 25-50 year coverage; premium lines offer 'lifetime' (usually defined as long as you own the home, often prorated after an initial period).

Contractor workmanship warranties

This covers installation errors — the cause of most premature roof failures. Terms range from 2 years to lifetime depending on the contractor. Ours is in writing, specific, and transferable — ask any contractor for the same.

Enhanced system warranties

When a certified contractor installs a complete system from one manufacturer (shingles, underlayment, flashing, ventilation), the manufacturer may back both materials and workmanship for up to 50 years. This is the strongest protection available and worth asking about.

What voids warranties

The usual killers: inadequate ventilation, unauthorized penetrations or repairs, pressure washing, walking damage, and failure to maintain. A quality installation is designed to keep every condition satisfied — which is another reason installation quality matters more than the warranty headline.

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Frequently Asked Questions

Is a warranty transferable when I sell?

Most manufacturer warranties transfer once, sometimes with conditions. A transferable warranty with years remaining is a genuine selling point in San Bruno's market.

What should I do if I need warranty service?

Call us first. We diagnose the issue, determine whether it is material or workmanship, and handle the manufacturer claim process on your behalf.