"Are you licensed, bonded, and insured? Can I verify it?"

Why it matters: Roofing is physically dangerous work. Workers' compensation insurance protects YOU if a roofer falls off your roof.

"How long have you been in business, and under what name?"

Why it matters: Storm chasers open companies, do shoddy work, close down, and reopen under a new name. Longevity isn't a guarantee of quality, but it suggests the company plans to be around to honor warranties.

"What manufacturer certifications do you hold?"

Why it matters: Major shingle manufacturers (GAF, Owens Corning, CertainTeed) have contractor certification programs that require training, insurance verification, and quality standards. Certified contractors can offer enhanced warranties that non-certified contractors cannot.

"What does the warranty cover — materials, labor, or both?"

Why it matters: Shingle manufacturer warranties cover materials only — if a shingle fails, they'll replace the shingle but NOT pay for the labor to install it. Labor warranties come from the contractor.

"Will you remove the old roofing or install over it?"

Why it matters: Building codes in most areas allow a maximum of two layers of shingles. Installing new shingles over old ones ("overlay") saves money on tear-off labor but hides problems underneath: rotted decking, damaged underlayment, inadequate ventilation.

"What underlayment are you installing?"

Why it matters: Underlayment is the waterproof barrier between your shingles and the wood decking. It's your roof's last line of defense if shingles are damaged.

"How will you handle decking repairs if you find rot?"

Why it matters: Rotted roof decking (plywood or OSB) is discovered during tear-off and must be replaced before new shingles are installed. This is a common source of surprise charges — and a legitimate one.

"Will you install proper ventilation?"

Why it matters: Roof ventilation (ridge vents, soffit vents) prevents heat and moisture buildup in the attic. Poor ventilation shortens shingle life by 20-30%, voids many manufacturer warranties, and can cause ice dams in cold climates.

"What is your timeline for starting and completing the work?"

Why it matters: Roofing is weather-dependent. A professional roofer gives realistic timelines and communicates about delays.

"Do you use subcontractors or your own crew?"

Why it matters: Subcontracted crews may be skilled, but accountability is murky. If the subcontractor's crew causes damage, who's responsible — the contractor you hired or the sub? Using their own employees means direct quality control.

"What is the payment schedule?"

Why it matters: Roofing payment should be structured to protect you: modest deposit to secure scheduling, with the majority due upon completion. Never pay in full before work starts.

"Will you provide a detailed written contract?"

Why it matters: The contract should specify: materials (brand, product line, color), scope (tear-off vs. overlay, ice-and-water shield locations, ventilation), timeline, warranty terms, payment schedule, cleanup responsibilities, and process for handling unexpected issues.

"How do you handle cleanup and debris removal?"

Why it matters: A roof tear-off generates thousands of pounds of old shingles, nails, and debris. Professional roofers use tarps to protect landscaping, magnetic nail sweepers to collect stray nails, and dumpsters for debris.

"Can I see photos of recent similar projects?"

Why it matters: Before-and-after photos of recent work in your area show the contractor's actual quality — not stock photos from their website. Look for clean lines, consistent shingle alignment, and neat flashing around penetrations.