How to know if a roofer is good?

A good roofer can be identified by checking several key indicators before hiring.

1. Verify the contractor holds a valid license and insurance in Illinois.
2. Check online reviews on Google, BBB, or Angi for consistent positive feedback.
3. Ask for references from recent local jobs and follow up with those homeowners.
4. Request a detailed written estimate that itemizes materials, labor, and timeline.
5. Confirm they offer a workmanship warranty in addition to the manufacturer's material warranty.
6. Look for established local presence — contractors rooted in the Godfrey, IL area are easier to hold accountable. Learn more about understanding roof replacement pricing.

Several warning signs indicate a roofing contractor may be unreliable or unqualified.

• Demanding full payment upfront before any work begins.
• Arriving unsolicited after a storm — a common sign of a "storm chaser" operation.
• Unable to provide proof of insurance or a valid contractor license.
• Offering only a vague verbal estimate with no written contract.
• Pressuring homeowners into signing immediately with high-pressure sales tactics.
• No verifiable local address, reviews, or references.
• Suggesting you file an inflated insurance claim.

A reliable roofer demonstrates professionalism, transparency, and verifiable credentials throughout the hiring process.

1. Confirm licensure and active liability insurance before signing anything.
2. Look for a contractor with a physical local address and an established reputation.
3. Review past customer feedback on third-party platforms for consistency and detail.
4. Trill Roofing, based in Godfrey, IL, is one example of a contractor with documented local experience.
5. A good roofer provides a clear, itemized written contract before starting work.
6. They communicate timelines, material choices, and cleanup expectations upfront.

A poor roofing job often shows visible and structural warning signs shortly after installation.

1. Look for uneven, wavy, or misaligned shingles across the roof surface.
2. Check that flashing around chimneys, vents, and valleys is properly sealed — gaps are a serious defect.
3. Inspect gutters for an excessive buildup of granules, which signals improper shingle handling.
4. Look for exposed nail heads, which should be covered to prevent leaks.
5. Sagging sections or visible daylight in the attic indicate inadequate installation.
6. Water stains on interior ceilings after rain confirm roof failure.