What Does a GAF-Certified Roofing Contractor Actually Mean?

When you're choosing a roofer, you'll see a lot of badges and claims. GAF certification is one worth understanding, because it directly affects the quality and warranty of your roof.

Who Is GAF?

GAF is North America's largest roofing manufacturer. Their Timberline HDZ architectural shingles are the most popular shingle in America, and their underlayment and accessory products are widely trusted. A GAF-certified contractor is authorized and trained to install genuine GAF roofing systems to the manufacturer's specification.

Why It Matters for Your Roof

A roof is a system, not just shingles. When every layer — underlayment, ice-and-water shield, flashing, shingles and ventilation — comes from one manufacturer and is installed to spec, the components are engineered to work together, and your roof qualifies for strong manufacturer warranty coverage.

What We Install

As a GAF-certified contractor, All Heart Roofing installs complete GAF systems: Timberline HDZ architectural shingles, Deck-Armor and FeltBuster synthetic underlayments, and matching ventilation and accessories. We handle the warranty registration so your investment is protected.