Updated March 2026

Roofing Warranties Explained

A roofing warranty sounds simple. It is not. Most homeowners think they have a "25-year warranty" and do not realize what that actually covers. Spoiler: probably less than you think.[1]

Here is how roofing warranties really work, what they cover, what they do not, and how to make sure yours is worth the paper it is printed on.

The Two Types of Roofing Warranty

Every roof replacement involves two separate warranties. Most homeowners only know about one of them.

1. Manufacturer Warranty

This comes from the company that made your shingles (GAF, Owens Corning, CertainTeed). It covers defects in the materials. If your shingles crack, delaminate, or fail before they should because of a manufacturing defect, the manufacturer pays to replace them.

It does not cover installation errors. If the shingles were nailed wrong, the flashing was installed wrong, or the ventilation was inadequate, the manufacturer will point at your contractor.

2. Workmanship Warranty

This comes from the roofing contractor who installed your roof. It covers installation errors. Bad nailing patterns, improper flashing, missed details. If the roof leaks because of how it was installed, the workmanship warranty covers the fix.

It does not cover material defects. If the shingle itself was bad from the factory, the contractor will point at the manufacturer.

You need both. A material defect without a manufacturer warranty and an installation error without a workmanship warranty both leave you paying out of pocket. Here is how to make sure your roofer offers both.

Manufacturer Warranty Comparison

The big three shingle manufacturers each have tiered warranty programs. The better the warranty, the more certified your installer needs to be.[2]

GAF Warranty Tiers

Owens Corning Warranty Tiers

CertainTeed Warranty Tiers

Notice the pattern? The best warranties require the most certified installers. That certification costs the contractor money (training, fees, volume requirements), which gets baked into your estimate. But the warranty value is usually worth the premium.[2]

Workmanship Warranty: What to Expect

The workmanship warranty comes from your contractor. Here is what the market looks like:

• 1-2 years: Standard from non-certified installers. This is the minimum. It barely covers one winter cycle.
• 5-10 years: Common from manufacturer-certified installers (GAF Certified, OC Preferred, CertainTeed SELECT).
• 25 years: Top-tier certified installers only (GAF Master Elite with Golden Pledge, OC Platinum Preferred). This is the gold standard.

A 2-year workmanship warranty sounds better than nothing. But most installation errors do not show up in the first two years. They show up in year 3, 4, or 5, when sealants fail, flashing pulls away, or improper nailing patterns let shingles blow off in a storm.

This is why hiring a certified installer is worth the extra cost. You are not just buying shingles. You are buying 10-25 years of protection against the work itself. Here is how to verify certifications.

What Voids Your Warranty

This is the section most homeowners skip. Do not skip it. Here are the most common ways people accidentally void their roofing warranty:[3]

The Certification Game

Here is why certifications matter so much: they are the only way to unlock the best warranties.

GAF Master Elite contractors represent only about 2% of all roofing contractors in the country. Owens Corning Platinum Preferred is similarly exclusive. These are not easy certifications to get. The contractor must:[4]

• Be licensed and insured (where required)
• Have a proven track record of quality installations
• Commit to ongoing training
• Meet minimum volume requirements
• Maintain customer satisfaction scores

The benefit to you: a certified installer's work is backed by both the contractor and the manufacturer. A non-certified installer's work is backed only by the contractor. If that contractor goes out of business in 5 years, your workmanship warranty goes with them.

A manufacturer warranty from GAF or Owens Corning will outlast most contractors. That is the real value of certification.

Warranty and PE-Backed Companies

Here is a question nobody asks but should: will your warranty survive if the company is sold?

Over 40 private equity platforms are buying roofing companies right now. When a PE firm acquires your roofer, the workmanship warranty transfers to the new owner. In theory, it is still valid.

In practice, PE firms buy and sell companies on 5-7 year cycles. Your roofer might change ownership twice during the life of a 25-year warranty. Each time, there is a question: will the new owner honor the old warranty? Will they even have records of your project?[5]

This is another reason the manufacturer warranty matters more than the workmanship warranty in the long run. GAF will be here in 25 years. Your local roofer might not be, whether they are PE-backed or not.

Ask your contractor: "If your company is sold, what happens to my workmanship warranty?" A good roofer will have an answer. A great one will have it in writing. Here is how to vet a roofer's ownership structure.

How to File a Warranty Claim

If you think you have a warranty issue, here is what to do:

1. Document the problem. Take photos and note when you first noticed the issue.
2. Find your warranty paperwork. You should have received warranty documentation at the time of installation. If not, contact your contractor or the manufacturer with your installation date and address.
3. Contact the right party. Material defect? Contact the manufacturer. Installation error? Contact the contractor. Not sure? Start with the contractor.
4. Get a professional inspection. The manufacturer or contractor will likely send someone to inspect the issue. You can also get your own independent inspection for leverage.
5. Do not make unauthorized repairs. Fixing the problem yourself before filing a claim can void the warranty. Let the warranty process play out first.
6. Follow up in writing. Keep records of every phone call and email. If a claim is denied, ask for the specific reason in writing.

Warranty claims take time. A manufacturer claim can take 4-8 weeks. A contractor workmanship claim should be faster, typically 1-2 weeks for an inspection and repair schedule. If either party drags their feet, escalate in writing and reference the specific warranty terms.[1]

Frequently Asked Questions

What is the difference between a manufacturer warranty and a workmanship warranty?

A manufacturer warranty covers defects in the materials (shingles, underlayment, ridge caps). A workmanship warranty covers errors in installation (bad nailing, improper flashing, missed details). You need both for full protection.

What voids a roofing warranty?

The most common voidors are improper ventilation, unauthorized repairs, failure to register the warranty, installation by a non-certified contractor, and mixing brands across the roofing system.[3]

Are roofing warranties transferable?

Most manufacturer warranties transfer once to a new homeowner, but coverage is usually reduced. Some require notification within 60 days of the home sale. Workmanship warranties may or may not transfer depending on the contractor. Ask before you buy, whether you are the seller or the buyer. See how warranties affect home value.

Is a GAF Golden Pledge warranty worth the extra cost?

For most homeowners, yes. It covers materials and workmanship for 25 years, includes tear-off and disposal if a defect is found, and is backed by GAF, not just your contractor. The extra cost comes from using a Master Elite contractor, which typically adds 5-15% to the total project cost. But 25 years of real coverage is worth the premium.[2]