Hiring the wrong roofer can cost you thousands in repairs, voided warranties, and sleepless nights. Use this 6-point contractor scorecard to evaluate any roofing company before you sign.
A bad roofing contractor is worse than no roofing contractor at all. When you delay a roof project, you at least know the problem is still there waiting to be solved. But when you hire the wrong company, you get a false sense of security — plus a bill. The leak comes back in six months. The shingles blow off in the first storm. The “lifetime warranty” turns out to be printed on paper that isn’t worth the ink.
According to the National Roofing Contractors Association, roofing is one of the most complained-about home improvement categories in the country. The reason is simple: the barrier to entry is low. Anyone with a truck, a ladder, and a business card can call themselves a roofer. That means the difference between a company that protects your home for 30 years and one that creates a bigger problem than you started with comes down to how well you evaluate them before signing a contract.
This guide gives you a structured way to do exactly that. We’ve built a contractor scorecard around six criteria that separate legitimate roofing companies from the ones you’ll regret hiring. Whether you’re dealing with a full roof replacement, storm damage repair, or routine maintenance, these six factors will help you make a confident decision.
The 6-Point Contractor Scorecard
Think of this as a mental evaluation card. For every roofing company you’re considering, rate them on each of these six criteria. A company that scores well across all six is almost certainly a safe bet. A company that fails even one should give you serious pause.
Rate each contractor 1–5 on these six criteria before signing any agreement.
Your rating
Ask for their state contractor license number and verify it through your state’s licensing board. Request a Certificate of Insurance (COI) that names you as an additional insured — this protects you if a worker is injured on your property. In Alabama, the Home Builders Licensure Board handles residential licensing. In Florida, check the Construction Industry Licensing Board. A legitimate contractor will have this documentation ready to share without hesitation.
Your rating
Manufacturer certifications are the single best proxy for installation quality because they require documented training, inspection scores, and customer feedback. GAF — the largest shingle manufacturer in North America — awards President’s Club status to roughly the top 1% of contractors nationwide. CertainTeed’s SELECT ShingleMaster is a similar tier. These certifications also unlock extended warranty systems that non-certified contractors cannot offer, which directly protects your investment.
Your rating
Check Google Business Profile, BBB, and Angi. Read the negative reviews specifically — how a company responds to complaints tells you more than the five-star reviews. Look for patterns: repeated mentions of missed timelines, poor cleanup, or unresponsive communication are predictive of your experience. Ask for 3–5 references from jobs completed in the last 12 months in your area, and actually call them. A company with deep local roots and a reputation to protect will work harder for you than one just passing through.
Your rating
Get at least three written estimates and compare them side by side. The cheapest bid isn’t the best — it’s often the most dangerous, because it usually means corners will be cut on materials, underlayment, or labor. A good estimate should specify the exact shingle brand and model, underlayment type, the number of layers being removed, how flashing and ventilation will be handled, and who is responsible for permits. If a contractor can’t explain what each line item covers, that’s a problem.
Your rating
There are two separate warranties that matter: the manufacturer warranty (covers defective materials) and the workmanship warranty (covers installation errors). Most homeowner regret comes from the workmanship side, because a shingle doesn’t fail — the installer does. Only manufacturer-certified contractors can offer the highest warranty tiers, which is why Criterion 2 directly affects this one. Ask the contractor to explain both warranties in writing, including what’s covered, what’s excluded, and how to file a claim.
Your rating
How a company communicates during the sales process is the best predictor of how they’ll communicate during construction. If they’re slow to return calls now, they’ll be even slower once they have your deposit. Pay attention to the first interaction: Did they answer the phone quickly? Did the estimator arrive on time? Did they listen to your concerns or just pitch? The best contractors treat the estimate visit like a consultation, not a sales presentation. They should educate you on options, explain trade-offs honestly, and never pressure you to sign on the spot.
5 Warning Signs of a Bad Roofing Contractor
The scorecard helps you evaluate companies that are on your shortlist. But some contractors reveal themselves before you even get that far. Here are five warning signs that should immediately disqualify a roofing company from your consideration.
How to Use the Scorecard
The scorecard works best when you apply it to at least three contractors simultaneously. Here’s the recommended approach:
- Get three estimates minimum. This gives you enough data points to compare pricing, approach, and professionalism side by side. Don’t just compare price — compare the level of detail in each estimate, how each company explains the work, and how responsive they are throughout the process.
- Score each contractor on all six criteria. Be honest with yourself. A company that scores 5 on certifications but 2 on communication is still a risky hire. The best contractors score consistently across all categories because professionalism and quality are organizational traits, not isolated strengths.
- Weight the criteria for your situation. If you’re filing an insurance claim, communication and documentation matter more. If you’re investing in a 30-year roof, certifications and warranties should carry extra weight. For smaller repairs, local reputation and responsiveness may be your deciding factors.
- Trust patterns over promises. What a contractor has done matters more than what they say they’ll do. Verified reviews, documented certifications, and detailed written estimates are evidence. Verbal promises and handshake deals are not.
A roofing contractor who scores 4 or 5 across all six criteria is a contractor worth hiring. A contractor who scores below 3 on any single criterion — especially licensing, insurance, or warranties — is a contractor worth avoiding, regardless of how competitive their price looks.
Ridgeline Construction is a GAF President’s Club contractor (top 1% nationally) and winner of the BBB N.AL ’23 Torch Award for Ethics. We’ll give you a detailed written estimate, explain every line item, and never pressure you to sign. Compare us against the scorecard — we’re confident in the result.
Why Certifications and Warranties Are Connected
One of the most important things homeowners miss when choosing a roofing company is the direct link between contractor certifications and the warranty you receive. These are not separate considerations — one determines the other.
With GAF, the largest roofing manufacturer in North America, a non-certified contractor can only offer a standard warranty that covers material defects. If the installation was done incorrectly — the far more common problem — you have no manufacturer protection. A certified contractor (e.g., GAF Master Elite) can offer enhanced warranties covering both materials and workmanship. A top-tier contractor (e.g., GAF President’s Club) can offer an enhanced GAF warranty on qualifying systems — with lifetime limited workmanship coverage for qualifying individual-owned detached homes, including 25 or 30 non-prorated years depending on the eligible shingles, backed by GAF itself, not just the contractor.
This is why Criterion 2 on the scorecard directly affects Criterion 5. A contractor without certifications physically cannot offer you the best warranty protection, regardless of what they promise verbally. When you’re spending $8,000–$25,000 on a roof replacement, the difference between a material-only warranty and an eligible system warranty that also covers workmanship under its own terms is the difference between protection on paper and protection that actually protects you.
Frequently Asked Questions
Get at least three written estimates from different contractors. This gives you enough comparison points for pricing, scope, materials, and professionalism. More than five tends to create decision paralysis without adding meaningful information. Focus on quality of the estimate, not quantity of estimates — a detailed, well-explained bid from three companies is more useful than vague numbers from seven.
No. The cheapest estimate is a red flag more often than a bargain. When one bid is 30–40% below the others, something is being left out: proper underlayment, flashing replacement, code-compliant installation, or permit costs. A quality roof that lasts 25–30 years requires quality materials and skilled labor, and those have real costs. Compare estimates on value — materials specified, warranty tier, scope of work, and contractor credentials — not price alone.
GAF President’s Club is a distinction awarded to approximately the top 1% of roofing contractors in the United States by GAF, North America’s largest roofing manufacturer. It requires sustained excellence in installation quality, customer satisfaction scores, and business practices. For homeowners, it matters because President’s Club contractors can offer Golden Pledge on qualifying systems as Master Elite contractors, which includes lifetime limited workmanship coverage for qualifying individual-owned detached homes, including 25 or 30 non-prorated years depending on the eligible shingles, backed directly by GAF — not just the contractor. GAF-backed coverage is distinct from a contractor-only promise; the issued warranty’s claim procedures, remedies, and exclusions still apply.
Family-owned since 2012. GAF President’s Club (top 1%). BBB North Alabama Torch Award for Ethics 2023. Licensed, insured, and serving 31 cities across Alabama and the Florida Panhandle. Request your free estimate and evaluate us on every criterion — we’ll earn the highest score on your list.
